w

Technical Description With the model 400 Appexperimental proof of thecan be demonstrated easilof the data acquired as wvisualization in the tcomprehensive. The unit is highly suitabpurposes thanks to its sizits merits in practical expe3 students work well at one A test gas is enclosed in tmeasuring cylinder. Its pchanges at constant temexamined. Air is used asinitial volume of 1 L at atThe pressure conditionscylinder are transferred tomeasuring cylinder. Wateused as a transfer media. The pressure conditionscylinder are changed wdiaphragm compressor, wa vacuum pump. In this wbe subjected to overunderpressure conditions.

AAppppaarraattuuss ffoorr DDeemmoonnssttrraattiinngg BBooyylleess’’ss LLaaw

model 400

aratus a convincing Boyle-Mariotte law y. The high precision ell as the important est ensure good

le for demonstration e. It has also proven riments, in which 2 to unit.

he top section of the ressure and volume peratures are to be a test gas, with an mospheric pressure. in the pressure the test gas in the

r or hydraulic oil are

in the pressure ith the aid of a

hich can also act as ay the test gas can

as well as to

Both cylinders are made of thick-walled plexiglas tubing. The entire system equipment is in accordance with the state of the art in the industry. The unit is easy to transport. Technical Data Main dimensions L x W x H: 750 x 400 x 700 mm Weight: 25 kg Supply: 230 V / 50 Hz

Technical Descriptio With the model 402 Aexperimental proof of thebe demonstrated easily. Tdata acquired as wevisualization in the comprehensive. The demonstration purposes,merits in practical experstudents work well at onbuilt as a bench-top unit. The pressure, the volumethe test gas (air) are meatestgas temperature is adA built-in, small compresthe pressure. Digitaexperiments even withosupplied with data-acquisAll components are cleademonstration panel. An comprehensive inavailable.

BBooyyllee’’ss LLaaww AAppppaarraattuuss wwiitthh PPCC--DDaattaa AAqquuiissiittiioonn

Technical Data

n model 402

pparatus a convincing Boyle-Mariotte law can he high precision of the ll as the important

test ensure good unit is suitable for it has also proven its iments, in which 2 to 3 e unit. The apparatus is

and the temperature of sured electronically. The justable and controlled. sor enabled to varying l displays facilitate ut a PC. The unit is ition card and software. rly arranged on a white

struction manual are

Cylinder: Plexiglas Ø 133 mm, Height 350 mm Main dimensions L x W x H: 900 x 600 x 900 mm Weight: 22 kg Supply: 230 V / 50 Hz

DDeeww PPooiinntt HHyyggrroommeetteerr

Technical Description model 500 Questions such as air humidity, the water vapor contained in air, the condensation of water vapor, the physical term and technical significance of the dew point all belong to the basic contents of technical thermodynamics. The model 500 unit is primarily designed for practical student experiments. However, it also provides teachers with important support in demonstrations. The student has a direct association with the term dew point by being able to observe the beginning of water vapor condensation directly on the surface of the mirror. At room temperature, these substances are already close to their boiling point.

The high gloss, chrome-plated metal mirror is the identification surface for visualizing the condensation process. There is a reservoir behind the mirror surface, which is filled with ether or acetone. The heat energy needed for evaporation is taken from the hygrometer-head and the ambient air. The hand-blower amplifies this process. When the dew point is reached, water vapor condenses out of the air. This process can be observed precisely at the mirror surface when the inner part of the mirror, separated by a slot, becomes clouded. The temperature reached at this point is read from a thermometer.

The diagram on the page before is required for evaluation and also shows an example: The ambient temperature was 31.5°C. The dew point was reached at 22°C. The water vapor saturation-level fs is is 33.8 g/m3 at 32°C. The current water vapor level fa is 20 g/m3. The relative air humidity fr=fa/fs x 100 % = 59.2 %. Extensive product information is also available for this unit. Technical Data Main dimensions of the storage case L x W x H: 420 x 300 x 75 mm Weight: 3 kg

DDeemmoo UUnniitt,, FFllooww BBooiilliinngg

General Description model 510 In the design and construction of steam generators knowledge of the evaporation process is essential. With the model 510 Demo Unit, Flow Boiling, the evaporation process in heated pipes, such as occurs in water-tube steam generators, can be demonstrated. The different phases of evaporation occuring in a water tube are seen particularly clearly. With the model 410 Demo Unit, a lot of concepts can be demonstrated, such as ��single-phase liquid flow ��sub cooled boiling ��wet steam ��superheated vapour etc.

The test unit is run by a low-boiling, non-toxic special fluid, so that the pressure and temperature level remains low and therefore safe. The low level of evaporation heat means that the heat output is low. The demo unit is designed for tutorial and experimental purposes. Function

The overall system is divided into 3 autonomous circuits.

��Evaporation circuit

��Heating circuit

��Cooling circuit

DDeemmoo UUnniitt,, FFllooww BBooiilliinngg

Technical Data General Dimensions: L x W x H Weight: Power supply: Cold water supply Heating circuit Output: Temperature range: Thermometer: Circulation pump Delivery rate Delivery head Water-jet air pump Rec. water pressure: Water consumption: Final pressure: Pipe evaporator Length: Inside diameter: Outside diameter Evaporation fluid volume Pressure range: Evaporation fluid Name: Chemical formula:

1000 x 600 x 1950 mm 60 kg 230 V /50Hz 2kW 5 - 80 °C 0 - 100 °C 3 m3/h 5 m 0.5 bar 330 liters/h 12 mbar 1200 mm 13.6 mm 24 mm 500 cm3 -1.0 ... 1.5 bar rel. 1,1-dichloro-1-fluorethane CCl2F-CH3 Non-flammable

BBooiilliinngg HHeeaatt TTrraannssffeerr UUnniitt wwiitthh PPCC--DDaattaa--AAqquuiissiittiioonn

Technical Description model 520 The experimental stand model 520 Boiling Heat Transfer Unit with PC-Data Acquisition enables visualisation of boiling process on heating pipes, e.g. as is the case of large water-space boiler. Particulary, the various boiling phases on flue gas pipes can be visualised. The different boiling forms can be represented and the fundamentals of the heat flux can be understood through the infinitely adjustment of heating power. Temperature and pressure sensors are fittedon all relevant points in the unit, so taht the effect of changing parameters on the boiling process can be investigated experimetally. The boiling process takes place in a glass cylinder.

BBooiilliinngg HHeeaatt TTrraannssffeerr UUnniitt wwiitthh PPCC--DDaattaa--AAqquuiissiittiioonn

The bench top unit is run by a low boiling, non toxic special fluid, so that the pressure and temperature level remains low and therefore safe. The low level of evaporation heat means that the heat output is low. The software enables for online representation of measured values, graphically & numerically. A multifunction card has to be inserted in a free slot of a PC. The software provides three dynamic screen displays to simplify understanding of the process sequences. The displays on the monitor are as follows:

- Display 1: Block diagram and measured values

- Display 2: Calculations of heat transfer values Presentation of the displays is optional. The information is updated at fixed intervals. All displays are suitable for printing. Technical Data Overall dimensions: length width height weight power supply cold water supply, water drain Heater power surface Water cooler number of coils diameter of coil surface

900 mm 455 mm 820 mm 65 kg 230 V/ 50 Hz, 2 A 300 W, continuously adjustable 0.001875 m2 9 80 mm ca. 0.0578 m2

BBooiilliinngg HHeeaatt TTrraannssffeerr UUnniitt wwiitthh PPCC--DDaattaa--AAqquuiissiittiioonn

Pressure transmitter measuring range 0 - 4 bar abs. output signal 0 -10 V DC auxiliary power 24 V DC Power transmitter measuring range 0 - 400 W output signal 0 - 5 V DC auxiliary power +/- 15 V DC Flowmeter with transmitter (water) measuring range 3 - 108 l/h output signal 0 - 5 V DC auxiliary power 24 V DC Thermocouple with display and transmitter measuring range 0 - 200 °C output signal 0 - 10 V DC auxiliary power 230 V AC Temperature sensor with transmitter: measuring range 0 - 100 °C output signal 0 - 5 V DC auxiliary power 24 V AC Digital display: measuring range 0 - 200 mV DC auxiliary power 5 V DC Evaporation fluid (R141b): name 1,1-dichloro-1-fluorethane chemical formula CCl2F-CH3 trade name Solvay, Solkane 141 b molecular weight 116.9 boiling point at po= 1013 mbar 31.7 °C melting point -103.5 °C critical temperature 208.3 °C critical pressure 4400 kPa density at 20°C 1.27 g/cm3

at 50°C 1.18 g/cm3 evaporation heat 225 kJ/kg non-flammable ignition temperature 550 °C explosion limit, gas/air mixture

lower 5.6 % upper 17.7 %

BBooiilliinngg HHeeaatt TTrraannssffeerr UUnniitt wwiitthh PPCC--DDaattaa--AAqquuiissiittiioonn

caloric conductibility (gas) 0.0095 W/mK vapour pressure at 20°C 64 kPa at 50°C 183 kPa perm. workplace concentration ( 8h/d,40h/w)

500 vol ppm Multifunction card analog inputs 16, 0 - 10 VDC analog outputs 2, 0 - 10 VDC digital inputs 8, TTL digital outputs 8, buffered TTL counter 1, 16 bit Software Runtime version of visual designer completely configured. The software enables for online representation of measured values, graphically & numerically. All displays are suitabel for printing. Range of Experiments:

- Visualisation of different boiling

- Dependence on pressure and temperature during evaporation

- Determination of surface heat transfer coefficient �

- Calculation of heat flux

- Determination of logarithmic mean temperature difference during condensation Contents of Supply

1 Basic unit of WL 220 Boiling Heat Transfer Unit, complete with all components and sensors 2l Evaporation fluid (R141b) 1 Hose 1 Funnel 1 Multifunction-Card to install in a PC 1 Runtime version of Software readily configured 1 Connecting cable 1 Operating instructions

BBooiilliinngg HHeeaatt TTrraannssffeerr UUnniitt wwiitthh PPCC--DDaattaa--AAqquuiissiittiioonn

Please note: PC-Hardware is not included in our contents of supply.

The minimum requirements for PC-hardware are: 1 PC 4/86 DX 66

8 MB RAM 1 MB VGA adaptor (600x800 points) 1 free slot (adr HEX 0320) 1 Harddisk 540 MB 1 Floppy 3 1/2"

1 Monitor 15" (600x800 points) 1 Keyboard 1 Mouse 1 Windows 3.1

CCoonnddeennssaattiioonn UUnniitt wwiitthh PPCC--DDaattaa AAccqquuiissiittiioonn

An electri Temperatchanging The cond The benctherefore The softwmultifunct The softwsequence The displ

- Display

- Display

- Display Presentatsuitable fo

Technical Description model 530 The experimental stand model 530 Condensation Unit with PC-Data Acquisition enables visualisation of a condensation process. The dropwise and filmwise condensations can be represented and the fundamentals of the condensation process can be understood through two water-cooled condensers in the upper flange.

cal heating element in the bottom flange initialises boiling and the condensation process.

ure and pressure sensors are fitted on all relevant points in the unit, so that the effect of parameters on the condensation process can be investigated experimentally.

ensation process takes place in a glass cylinder.

h top unit is run by destilled water at low pressure, so that temperature level remains low and safe.

are enables for online representation of measured values, graphically & numerically. A ion card has to be inserted in a free slot of a PC.

are provides three dynamic screen displays to simplify understanding of the process s.

ays on the monitor are as follows:

1: Block diagram and measured values

2: Calculations of heat transfer values

3: Line recorder

ion of the displays is optional. The information is updated at fixed intervals. All displays are r printing.

CCoonnddeennssaattiioonn UUnniitt wwiitthh PPCC--DDaattaa AAccqquuiissiittiioonn

Technical Data Overall dimensions: length 900 mm width 455 mm height 820 mm weight 65 kg power supply 230 V/ 50 Hz, 16 A cold water supply, water drain Heater Power 0 - 3000 W Pressure transmitter measuring range 0 - 2 bar abs. Flowmeter with transmitter (cooling water) measuring range 12 - 200 l/h Thermocouple with transmitter (surface temperature) measuring range 0 - 200 °C PTC-sensor with transmitter (cooling water temperature): measuring range 0 - 100 °C Digital display: Digits 3 1/2 LCD Evaporation fluid Destilled water Multifunction card analog inputs 16, 0 - 10 V analog outputs 2, 0 - 10 V digital inputs 8, TTL digital outputs 8, buffered TTL counter 1, 16 bit Software

Runtime version of visual designer completely configured. The software enables for online representation of measured values, graphically & numerically. All displays are suitabel for printing.

Range of Experiments

- Visualisation of

- Dependence on

- Determining of

- Calculation of c Contents of Supply

1 Basic unit of mo5 litre Destilled wa1 Hose 1 Multifunction-Ca1 Runtime version1 Connecting cab1 Operating instru

Please note: PC-Hardwa The minimum requireme

1 PC 486 DX 66 12 MB RAM 1 MB VGA adapto1 free slot (adr HE1 Harddisk 540 M1 Floppy 3 1/2" 1 Monitor 15" (601 Keyboard / Mou1 Windows 95 or

CCoonnddeennssaattiioonn UUnniitt wwiitthh PPCC--DDaattaa AAccqquuiissiittiioonn

:

dropwise and filmwise condensation

pressure and temperature during condensation

cooling power

ooling process values

del 530 Condensation Unit, complete with all components and sensors ter

rd to install in a PC of Software readily configured

le ctions

re is not included in our contents of supply.

nts for PC-hardware are:

r (600x800 points) X 0320)

B

0x800 points) se NT 4.0

CCoonncceennttrriicc TTuubbee HHeeaatt EExxcchhaannggeerr

Details 1 Stand on rollers with instrument wall 2 Tubular heat exchanger 3 Hot-water tank with pump, electric heating and thermostat 4 Flow-meter 1 for hot water 5 Flow-meter 2 for cold water 6 Manual valve 1 for regulating flow of hot water 7 Manual valve 2 for regulating flow of cold water 8 Ball-cock 3 for cold water inlet, uniflow 9 Ball-cock 4 for cold water inlet, counter-current 10 Ball-cock 5 for cold water outlet, uniflow 11 Ball-cock 6 for cold water outlet, counter-current 12 Vent valve 1 for hot-water circuit 13 Vent valve 2 for cold-water circuit 14 Thermometer 1, hot water inlet 15 Thermometer 2, hot water outlet 16 Thermometer 3, cold water inlet, uniflow ( outlet with counter-current) 17 Thermometer 4, cold water outlet, uniflow ( inlet with counter-current) 18 Thermometer 5, centre, hot water 19 Thermometer 6, centre, cold water 20 On/off switch 1 for pump 21 On/off switch 2 for heating

Technical Description model 500 The test stand model 500 allows for demonstration of the characteristic features of a heat exchanger. The components of the test stand are clearly arranged on a stand so that the function of the heat exchanger can easily be seen. Measurement of the inlet/outlet temperatures as well as an additional temperature measurement point halfway along the heat exchange path enable displaying the non-linear temperature profile along a heat exchanger. The test stand can be used to outline both uniflow and counter-current operation together with their different temperature profiles. The test stand is designed on the basis of standard industrial components, so that the performance of experiments remains practice-oriented for the trainees, thus enabling them to put the experience gained with the handling of measuring instruments to meaningful use. The most important variables such as heat flow, heat transfer coefficient and heat loss are determined during assessment of the experiment and provide the trainees with an example of the application of the fundamental laws of thermodynamics. It also makes it possible to demonstrate the basic principles of heat exchange in pipe flow and to check them by measurement.

CCoonncceennttrriicc TTuubbee HHeeaatt EExxcchhaannggeerr

The stand features its own hot water supply. A tank with centrifugal pump and electric heating is located at the bottom of the frame. The temperature of the hot water is set with a thermostat. The cold water is taken from the line network and drained off after use. It is possible to have either uniflow or counter-current operation. The direction of flow is reversed by means of ball-cocks in the cold-water flow. The heat-exchanger inlet/outlet temperatures can be measured at each water circuit by means of stem-type thermometers. There are also two thermometers in the centre of the heat exchanger to provide information on the temperature profile along the heat exchanger. The hot-water/cold-water flow-rates are measured using two variable-area flow-meters. The pipes are made of copper and thoroughly insulated. The pump and tank heating are controlled from the instrument panel. The thermostat for setting the temperature of the hot water is situated on the water tank. Process schematic diagram

Technical Data Dimensions ( l x w x h) : 1386 x 550 x1850 mm Weight : 137 kg Supply: 230 V, 50 Hz cold water max. 150 l/h

from network Water tank, capacity : 28 litre

Pump : 230 V, 50 Hz Power: 150 W Delivery head: 3m

Heating : 2 kW, 230 V, 50 Hz Thermostat , adjustable : 0 to 80 oC

CCoonncceennttrriicc TTuubbee HHeeaatt EExxcchhaannggeerr

Float-type flow-meter

max. flow, hot water : 100% = 96 l/h max. flow, cold water : 100% = 96 l/h

Armoured thermometer measurement range : 0 °C to 100 °C length : 150 mm

List of Experiments

��Evaluation of heat transfer between medium and wall

��Evaluation of thermal conduction in wall

��Determination of heat transfer coefficient

��Evaluation of flow of heat through heat exchanger

��Evaluation of losses in heat exchanger

��Determination of temperature profile

��Performing experiments for uniflow operation and counter-current operation Contents of Supply 1 Basic unit of model 600 Concentric Tube Heat Exchanger 1 Set of connecting hoses 1 Instructions Manual

TTuubbuullaarr HHeeaatt EExxcchhaannggeerr wwiitthh PPCC--DDaattaa AAccqquuiissiittiioonn

Description model 602 The test stand contains a water/water tubular heat exchanger with its own hot water supply consisting of tank, heater with thermostat and circulating pump. The cold water is taken from the pipe network and routed back into a drain. The tubular heat exchanger can operate in either uniflow or counter-current mode. Ball cocks make for simple switching. Inlet and outlet temperatures are recorded and displayed digitally and measured Pt100 resistance thermometers. The volumetric flow rates are measured with magnetic inductive flowmeters and likewise displayed digitally. The test stand is prepared for data acquisition. The measurement values are displayed digitally and can also be read via PC. Operation using without a PC is also possible. The software enables for online representation of measured values, graphically & numerically. A multifunction card has to be inserted in a free slot of a PC.

The test stand makes for implementation of the following measurements and experiments:

- Temperature measurements

- Flow measurements

- Determination of heat flow

- Determination of coefficient of heat transmission k of a heat exchanger

- Influence of uniflow and counter-current operation on temperature profile and exchange of heat.

TTuubbuullaarr HHeeaatt EExxcchhaannggeerr wwiitthh PPCC--DDaattaa AAccqquuiissiittiioonn

Details of model 602

Components: 1 Panel with stand 2 Flowmeter, electronic primary circuit 3 Flowmeter electronic secondary circuit 4 Resistance thermometer 5 Resistance thermometer 6 Resistance thermometer 7 Resistance thermometer 8 Manual control Valve 9 Tank with pump and heater 10 Digital displays

Process schematic model 602 Components: 1 Interface card 2 Flowmeter primary circuit 3 Flowmeter, secondary circuit 4 Thermometer primary circuit 5 Thermometer secondary circuit 6 Resistance thermometer 7 Resistance thermometer 8 Manual control Valve 9 Heater 10 Tank 11 Centrifugal pump

TTeesstt UUnniitt FFrreeee aanndd FFoorrcceedd CCoonnvveeccttiioonn

1 Speed controlled fan 2 Duct 3 Thermometer adapter 4 Plexiglas window 5 Heater 6 Thermistor type anemometer 7 Holding frame 8 Control and display unit 9 Temperature sensor

Description model 650 The unit model 650 enables investigation of heat transfer by free and forced convection. In order to remove the heat from a hot surface, the fluid should flow along this surface. In free convection the fluid flow is caused by different densities due to heating the fluid. In forced convection the fluid flow is caused by a fan. Experiment Capabilities:

- Demonstration of principle of free and forced convection

- Determination of heat transfer in flat plate

- Determination of heat transfer in cylindrical surfaces (Tube heat exchanger)

- Determination of heat transfer in tapered fins

Technical Data Duct: Length: 1000 mm Cross section: 120 x 120 mm sq. Heating elements: Power (adjustable): 0 - 170 W Max. temperature: 120 deg. C

Heating area, Flat plate: Cylindrical: Tapered fins: Fan: Air flow rate (adjustable)Air speed: Thermometer: Anemometer (Thermistor type): Power supply: Dimensions L x W x H: Basic unit: Control unit: Weight: Control unit: Digital displays: Potentiometer: Contents of supply To ensure full experimen

1 Basic unit WL353 Heating elemen

Flat plate Cylindrical Tapered fin

1 Control and disp1 Thermistor type1 Instruction man

TTeesstt UUnniitt FFrreeee aanndd FFoorrcceedd CCoonnvveeccttiioonn

0.01 m sq. 0.098 m sq. 0.14 m sq.

: 0 - 180 cu.m/h 0 - 3.0 m/s

-50 ...+150 deg.C

0 - 10.0 m/s

230 V, 50 Hz

700 x 350 x 1200 mm 360 x 340 x 160 mm 25 kg, total

current, voltage, temperature heating power, rotation speed

tal function the following contents of supply are provided: 0 Test Unit Free and Forced Convection ts

s lay unit

anemometer ual

AAPPAARRAATTOO PPAARRAA CCOONNVVEECCCCIIÓÓNN EESSPPOONNTTÁÁNNEEAA YY FFOORRZZAADDAA//PPCC

Descripción model 652 El banco de ensayos para convección espontánea y forzada está concebido como equipo de mesa. Un canal sirve para la conducción de la corriente de aire. En los ensayos de convección forzada puede intercalarse un ventilador. Las temperaturas relevantes y la velocidad de la corriente en el canal se registran mediante sensores electrónicos y se muestran de forma digital en el módulo de indicación y control. Adicionalmente, la temperatura puede registrarse mediante un elemento térmico. En el canal se emplea un elemento calefactor que entrega el calor directamente al aire. Se tienen a disposición suplementos con diferentes superficies de intercambio térmico. El módulo de indicación y control incorpora la fuente de alimentación energética y sistema de regulación del ventilador y del elemento calefactor. Además de la temperatura y velocidad de la corriente indica también la potencia eléctrica que consume el elemento calefactor. Desde el módulo de indicación y control pueden trasmitirse directamente los datos de medición a un PC. Se incluye la tarjeta de registro de los datos de medición y software.

· Equipo de mesa esquemáticamente estructurado para la determinación experimental de la transmisión térmica · Registro de los datos de medición mediante sensores electrónicos · Procesamiento de los datos de medición en PC · Superficies de transmisión térmica intercambiables · Amplia descripción del ensayo

Ensayos · Demostración de los principios fundamentales de la convección espontánea y forzada · Demostración de la transmisión térmica en una placa llana · Demostración de la transmisión térmica en un haz de tubos · Demostración de la transmisión térmica en láminas · Medición de las temperaturas relevantes y de la velocidad de la corriente · Determinación de los coeficientes de transmisión térmica · Comparación entre convección espontánea y forzada

AAPPAARRAATTOO PPAARRAA CCOONNVVEECCCCIIÓÓNN EESSPPOONNTTÁÁNNEEAA YY FFOORRZZAADDAA//PPCC

Especificación [1]Banco de ensayos para demostración de la transmisión térmica por convección [2]Equipo de mesa, LxAnxAl: 700x350x1200mm [3]Registro de los datos de medición mediante sensores electrónicos [4]Procesamiento de los datos de medición en PC [5]Canal de aire, largo 1m, sección transversal de la corriente 120x120mm, Vmáx 180m³/h con ventilador axial [6]230V,~ 50Hz Datos técnicos Elemento calefactor Limitación de la temperatura mediante elemento bimetálico a 120°C Potencia calorífica máxima: 170W Superficie de la placa plana: 0,014m² Superficie del haz de tubos: 0,098m² Superficie de láminas: 0,14m² Rango de medición sensor de corriente Temperatura del agente a medir: -20..85°C Temperatura ambiental: 0..60°C Velocidad: 0..10m/s Rango de medición del elemento térmico tipo K: -50..120°C Rango de medición parte de presión 1..24bar -40..150°C Volumen de suministro 1 estructura del ensayo completa, 2 elemento calefactor, 1 tarjeta de registro de los datos de medición con software, 1 juego de accesorios, 1 instrucciones de ensayo

1 bastidor de mesa con soporte, 2 canal de aire, 3 sensor de corriente, 4 sensor PTC, 5 elemento calefactor "haz de tubos", 6 tubuladura de medición para el elemento calefactor, 7 sensor PTC, 8 ventilador, 9 elemento calefactor "láminas", 10 elemento calefactor "placa plana", 11 elemento térmico tipo K, 12 módulo de indicación y control Dimensiones y pesos LxAnxAl: 700 x 350 x 1200 mm Peso: 25 kg Conexiones 230V,~ 50Hz

General Description The unit is designed measurements to study:

- Inverse square

- Lambert’s cosin

- Stefan Boltzma

- Emissivity, abso Two alternative energy sis mounted on a turntabsupply. The absorber plates withon two digital electronic

Filter plates with differen A radiometer of thermovalues are displayed on The experimental set-upcombinations.

TThheerrmmaall RRaaddiiaattiioonn SSttuuddyy UUnniitt

model 660

to investigate the laws of heat transfer by radiation. The unit enables

law

e law

nn Law

rptivity and reflectivity etc.

ources are provided: a radiant heat source and a light source. The light source le. The power of the energy sources can be controlled by a dimmer in the power

various surfaces are fitted with thermocouples. The temperature can be shown thermometers at the control unit.

t trans

pile typillumin

can

1 Heat source 2 Radiometer 3 Filters 4 Bench 5 Luxmeter

mission coefficients and apertu

e and an electronic luxmeter ated digital meters at the contr

be arranged on a track with g

6 Light source 7 Aperture plates 8 Absorber plates 9 Control unit with power supply

re plates are supplied.

enable radiation measurement. Measured ol unit.

raduate scale to enable various distance

TThheerrmmaall RRaaddiiaattiioonn SSttuuddyy UUnniitt

Technical Data Heat source: 0 - 400 W Light source: 0 - 40 W Length of the track: 1000 mm Luxmeter: 0 - 2000 Lux Radiometer, Moll type thermopile: 0.16 mVmW-1 Thermocouples type K: 0 - 200 °C Overall dimension (L x W x H): 1450 x 300 x 400 mm Weight: 45 kg Power supply: 230 V, 50 Hz, 500 W

TTRRAANNSSMMIISSIIÓÓNN DDEE CCAALLOORR PPOORR RRAADDIIAACCIIÓÓNN//PPCC

Descripción model 662 Estructura de ensayo para amplios estudios sobre la regularidad de la radiación. Un radiador térmico conformado como radiador negro en conjunto con una columna térmica permite la investigación de la irradiación térmica En las placas absorbentes con elementos térmicos puede realizarse estudios sobre la absorción, reflexión y emisión de la radiación. Una fuente lumínica con luxómetro permite al usuario realizar mediciones de la intensidad de iluminación. Filtro cromático y un diafragma permiten la observación de los efectos de la luz a color sobre la intensidad de iluminación. En el amplificador de la medición puede regularse la intensidad de la irradiación y de la luz, los datos de la columna térmica, luxómetro y elementos térmicos se representan digitalmente. Al mismo tiempo, los datos de medición pueden transmitirse a un PC y procesarlos en éste. Se incluye la tarjeta de registro de los datos de medición y software.

· Equipo para estudio de la irradiación térmica y luminosa · Procesamiento de los datos de medición en PC · Amplia gama de ensayos · Software de sencilla aplicación con opciones tales como guardar, imprimir, confeccionar diagramas Ensayos · Verificación de la ley de dirección según Lambert · Verificación de la ley de separación según Lambert · Verificación de la constante de Boltzmann · Estudios sobre la longitud de onda de la luz · Verificación de las leyes de Kirchhoff: - Absorción de la irradiación - Reflexión de irradiación - Emisión de irradiación

TTRRAANNSSMMIISSIIÓÓNN DDEE CCAALLOORR PPOORR RRAADDIIAACCIIÓÓNN//PPCC

Especificación [1] Estructura de ensayo para estudio de la irradiación térmica y luminosa [2] LxAnxAl 1460x310x384mm, 20kg [3] Procesamiento de los datos de medición en PC [4] Radiador térmico 400W, máx. 150°C, superficie de irradiación 0,0320m², negro [5] Foco 40W, superficie lumínica 0,0289m², irradia con luz blanca, oscilante [6] Rango de medición del luminómetro 0..2000Lux [7] Rango de medición del elemento térmico 0..200°C [8] Rango de medición columna térmica 0..400W/m² [9] Software de usuario bajo Windows [10] 230V,~ 50Hz Datos técnicos Radiador térmico Potencia: 400W Temperatura máx. viable: 150°C Superficie de irradiación: 0,0320m² Foco lumínico Potencia de la bombilla de incandescencia: 40W Rango de oscilación en ambos lados: 0..90° Superficie lumínica: 0,0289m² Software ejecutable bajo Windows Rango de medición del luminómetro: 0..2000Lux Rango de medición del elemento térmico: 0..200°C Rango de medición columna térmica: 0..400W/m² Volumen de suministro 1 estructura del ensayo completamente montada, 1 tarjeta de registro de los datos de medición con software, 1 juego de cables de conexión, 1 instrucciones de ensayo

Dimensiones y pesos LxAnxAl: 1460 x 310 x 384 mm Peso: 20 kg Conexiones 230V,~50Hz

General Description The unit is designed experimental capabilities

- Demonstration

- Conduction thro

- Effect of surface

- Linear and radia

- Thermal conduc An insulated cylindrical cooled sink at the other.different materials. The disk with heat source intemperature sensors. Telectronic thermometer.

Technical Data Heat source: Thermosensors: Overall dimension Basic unit: (L x W x H): Control unit: (L x W x H)Weight: Power supply: Cooling water supply: Contents of supply 1 Basic unit with linear a1 Control and display un1 Set of connection cabl1 Instruction manual

HHeeaatt CCoonndduuccttiioonn SSttuuddyy UUnniitt

model 670

to investigate the laws of heat conduction. The unit enables the following :

of conduction laws

ugh composit materials

contact

l temperature profiles

tivity determination

bar conducts heat from a controlled electrical heater at one end , to a water The bar is cut at the mid for insertion of number of conduction experiments with bar is fitted with a number of temperature sensors. Also provided is an metal the centre and water cooled at the periphery. The metal disc is also fitted with he control box provides control of the heat, an electronic wattmeter and an

0 - 100 W 0 - 100 °C

350 x 350 x 200 mm : 460 x 345 x 195 mm

15 kg 230V, 50 Hz, 200W max. 20 litre/h

nd radial conduction set-up it es

HHeeaatt CCoonndduuccttiioonn SSttuuddyy UUnniitt wwiitthh PPCC--DDaattaa AAccqquuiissiittiioonn

General Description model 672 The unit is designed to investigate the laws of heat conduction. The unit enables the following experimental capabilities:

- Demonstration of conduction laws

- Conduction through composit materials

- Effect of surface contact

- Linear and radial temperature profiles

- Thermal conductivity determination An insulated cylindrical bar conducts heat from a controlled electrical heater at one end, to a water cooled sink at the other. The bar is cut at the mid for insertion of number of conduction experiments with different materials. The bar is fitted with a number of temperature sensors. Also provided is a metal disk with heat source in the centre and water cooled at the periphery. The metal disc is also fitted with temperature sensors. The unit is prepared for data acquisition.The control box provides control of the heat, electronic wattmeter, electronic thermometer and an interface for PC-data aquisition.

The software , included in WL372, enables for online representation of measured values graphically and nummerically. A multifunction card, also included, has to be inserted in free slot of a PC. Technical Data Heat source: 0 - 100 W Thermosensors: 0 - 100 °C

HHeeaatt CCoonndduuccttiioonn SSttuuddyy UUnniitt wwiitthh PPCC--DDaattaa AAccqquuiissiittiioonn

Overall dimension Basic unit (L x W x H): 350 x 350 x 200 mm Control unit: (L x W x H): 460 x 345 x 195 mm Weight: 15 kg Power supply: 230V, 50 Hz, 200W Cooling water supply: max. 20 litre/h Contents of supply

1 Basic unit with linear and radial conduction set-up 1 Control and display unit 1 Multifunction card 1 Runtime version of software, readily configured 1 Set of connection cables 1 Instruction manual

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Technical Description model 673 The unit model 673 is bench top, designed to enable the determination of thermal conductivity of gas or liquid. A fluid with small-thickness is filled in the clearance between a heated plug and a water cooled jacket. The small thickness is meant to prevent the natural convection in the fluid. Power supply for heating is taken from a control unit in which temperature display and voltage are integrated. The control unit is connected to the plug/jacket assembly via a flexible cable. Temperature is measured by thermocouples. For setting up an experiment, the unit is cleaned and assembled. Then the fluid under consideration is introduced into the radial clearance making sure that no air bubbles is in the liquid. Cooling water is taken from the water mains and let to flow with a reasonable flow rate so to give the appropriate temperature difference and heat transfer rate. The unit is easy to clean, assemble and connect for conducting an experiment. Safety measures are manifested in the fused and earthed electrical components.

Technical Data Heater: Heater input limited to Heater voltage limited t Thermocouple: 2x thermocouple typ K Plug / Jacket AssembMean diameter: Effective lenght: Control Unit: Dimensions L x W x H:Weight: Supply: Contents of Supply

1 pc. Control uni1 pc. Plug / jacke1 set Connecting1 pc. Instruction

TThheerrmmaall CCoonndduuccttiivviittyy ooff GGaasseess aanndd LLiiqquuiiddss

100 W o 70 V

ly: 39 mm 110 mm

280 x 262 x 120 mm 13 kg 230 V / 50 Hz

t t assembly cables manual