WATER COOLING TOWERSOLTEQ®

MODEL: HE 152

THIS Water Cooling Tower (Model: HE 152) has been designed to allow engineering students to getfamiliarised with all the processes related to industrial force draught cooling tower. The basic unitcan be used with other columns to further assist students in the study of Thermodynamics,

DESCRIPTION

The unit is supplied with a packed column havingpacking density of approximately 110 m2/m3. Theunit mainly consists of a load tank with a total of 1.5kW electric heater, an air distribution chamber, amake-up tank and a test column. Warm water ispumped from the load tank to the top of the columnbefore being uniformly distributed over the toppacking. The thin film of water is cooled, as it passesdownward, due to evaporation. The cooled

Equipment for Engineering Education & Research

Heat and Mass Transfer, Refrigeration and Air Conditioning.

A blower is installed on the unit to deliver air intothe air distribution chamber. The air passes a wetand dry bulb thermometers before entering thecolumn. As the air passes up the column, itsmoisture content increases and the water is cooled.At the top of the column, the air passes a mist

water falls into the basin before going back into

the load tank where it is re-heated and re-circulated. The load-tank water level is maintainedby means of a make-up tank.

SOLT

EQ

EXPERIMENTAL CAPABILITIES

This Water Cooling Tower (Model: HE 152) shall allowstudents to conduct these experiments:♦ To study the water flow pattern and distribution.♦ To measure all “end states”, and flow rates of wa-

ter, air and make-up water.♦ To plot the end states on a psychrometric chart

and to draw up energy balances using the steadyflow equation.

♦ To study the performance at different range ofcooling loads and inlet temperatures.

SPECIFICATIONS

a) Base UnitLoad tank with 0.5 kW and 1.0 kW electric heaters,a float level control, make-up tank, circulatingpump, air blower and control panel.

b) Column (Column I)Packed column made of clear acrylic with tendecks of inclined plastic packing, water distribu-tion unit and pressure tappings. Packing density:110 m2/m3. Dimension: 15 cm(W) x15 cm(D) x60cm(H).

c) Column CapMade of clear acrylic with sharp edge orifice, misteliminator and water distributor.

d) InstrumentationsTemperature measurements for water and air, dryand wet bulb temperatures, inclined tubemanometer for air flow measurement, variable areaflowmeter for water flow measurement.

OPTIONAL ITEMS

ADDITIONAL COLUMNS

- CL II1. Column II:♦ Similar to column I except with packing density of

77 m2 per m3

♦ To study the effect of packing surface area/volumeon the pressure drop across the packing and onthe wet bulb temperature at inlet.

- CL III2. Column III:♦ Similar to column I except with packing density of

200 m2 per m3

♦ To study the effect of packing surface area/volumeon the pressure drop across the packing and onthe wet bulb temperature at inlet.

- CL IV3. Column IV:♦ Similar to column I except without packing (empty

column)♦ To allow students to design their own packing and

thus study the performance.

- CL V4. Column V:♦ Similar to column III except that column V is 30 cm

taller with intermediate spaces in which the waterand air dry and wet bulb temperatures aremeasured

♦ To measure the air and water properties at differentlocations within the packing

♦ To construct the enthalpy driving force diagrams♦ To determine the Characteristics Equation for

packing.

- EIDIGITAL INSTRUMENTATIONS

i) 11 units of Digital Indicatorsii) 1 unit of electronic flowmeteriii) 1 unit of differential pressure transmitteriv) 8 units of temperature sensor c/w transmitter

- DASSOLDAS DATA ACQUISITION SYSTEM

i) A PC with Pentium processorii) A signal conditioning unitiii) A stand alone data acquisition modulesiv) A Windows based software

SOLTEQ®Equipment for Engineering Education & Research

SOLT

EQ20.0

25.0

30.0

35.0

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45.0

0.0 500.0 1000.0 1500.0 2000.0

Cooling Load (W)

Ap

pro

ach

to

Wet

Bu

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Water Entering Tow er

Water Leaving Tow er

Wet Bulb Temperature

♦ Data Logging♦ Signal Analysis♦ Process Control♦ Real-Time Display♦ Tabulated Results♦ Graph of Experimental Results

- CALSOLCAL COMPUTER AIDED LEARNINGSOFTWARE

i) Interactive multimedia featuresii) Graphical simulationiii) Experiment results samples

0.00

1.00

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0.0 500.0 1000.0 1500.0 2000.0

Cooling Load (W)

Ap

pro

ach

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Bu

lb Air Flow = 3

Air Flow = 4

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1.00 1.50 2.00 2.50 3.00 3.50 4.00

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)

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e D

rop

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oss

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g(m

m H

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Cooling Load (W)

iv) Full experiment manuals

REQUIREMENTS

i) Electrical supply : 220-240V/1-ph/50Hzii) Water supply : 2 L/hr of distilled or

demineralized water

OVERALL DIMENSIONS

Height : 1.20 mWidth : 1.00 mDepth : 0.60 m

TYPICAL EXPERIMENT RESULTS

SOLTEQ®Equipment for Engineering Education & Research

Our range of teaching equipment can be complemented with ourSOLDAS and SOLCAL software.

SOFTWARE & E - LEARNING

SOLCALTM - Computer Aided Learning- Multimedia Features- Interactive- Graphic Simulation- Experiment Result Samples- Full Experiment Manuals

SOLTEQ®

Contact us for a catalog CD

SOLUTION ENGINEERING SDN. BHD.(Co. No. 174876-M)

Sales Office :No.3, Jalan TPK 2/4, Taman Perindustrian Kinrara,47100 Puchong, Selangor Darul Ehsan, Malaysia.Tel. No. : +(603) 80758000Fax. No.: +(603) 80755784

R&D Office :G-2A, Incubator 3, Technology Park Malaysia,Bukit Jalil, 57000 Kuala Lumpur, Malaysia.Tel. No. : +(603) 8996 0023

Email : solution@solution.com.myWeb site : http//www.solution.com.my/

AGENT:

BUATAN MALAYSIA

Equipment for Engineering Education & Research

SOLDASTM - Supervisory Control & Data Acquisition- Data Logging- Signal Analysis- Process Control- Real-Time Display- Tabulated Results- Graph of Experimental Results