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eHybrid

eHybridTechnical documentation

l indab | we simplify construction

We reserve the right to make changes

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eHybrid


Energy use and environmental impact

Everybody knows that increased use of energy affects our environment and is one factor that leads to global warming. Every single person on earth is on average con-suming about 3.200 kWh of electric energy on a yearly basis. A big part of this consumption lies in ventilation, cooling, heating and lighting.

Yearly Electricity Consumption, kWh per capita

• The world in average – 3.200• USA – 12.900 • Europe – 5.800• India - 500

These figures are also highlighting that energy use in the future will increase since the world population is growing and humanity historically is inclined towards the use of more electricity for comforts, conveniences and indus-trial needs. So, how can you contribute to change that future? ( Source: EIA - U.S. Energy Information Adminis-tration - Independent Statistics and Analysis ).

eHybrid

Daily office work requires that we are flexible and mobile. Did you know that on average an office workspace is va-cant 30-50% of the working time? Supply systems for ventilation, cooling, heating and lighting, are per default not adapted whether an individual employee is present or not. This means that the system consumes equally as much energy regardless if people are present or not. In other words, we have a large savings potential if we can adapt the supply systems to the individual.

With Lindab’s eHybrid system solution we have gathered the best energy saving technologies from three different fields, Chilled beams, VAV and Lighting. We do not only secure the best possible indoor climate when working, but also makes sure to optimize energy consumption when you are off work. In a normal case, this saves 30% on en-ergy consumption in the supply systems.

Lindab will contribute to a better world by optimizing energy use in conditioned commercial buildings by de-mand control. Especially when you are away from your work place, Lindab’s eHybrid system solution adapts to the change in energy demand and uses less energy than common systems without affecting the high comfort qual-ity when you are present.

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eHybrid

We reserve the right to make changes We reserve the right to make changes

presence sensorSupply and exhaust air

Cooling and heating function control

Advanced room light regulation Regula Combi control unit

eHybrid in short

eHybrid lets you take control: eHybrid is a demand controlled indoor climate system for the room that com-bines ventilation, cooling/heating and lightning into an all-in-one system. The core of the eHybrid system is a Lindab chilled beam, an already energy efficient device for comfortable indoor climate and low energy use. By adding Lindabs regulation system Regula Combi and a presence sensor, we tie it all together. The result is the first indoor climate system that delivers maximum comfort with mini-mal energy use. Integrated lighting is an additional feature optional in some of our eHybrid beam configurations, but also external lighting can be added to the system.

For todays and tomorrows needs: Demand controlled activity means lower energy use. With its intelligent sen-sor and control devices the eHybrid system is an excellent choice for low energy use and environmental awareness. When entering the room the presence sensor detects hu-man presence and brings the supplying systems to the preset normal level. This means fresh ventilated air and cooling or heating to meet your requirement for a good indoor climate. The presence sensor will also activate the lighting and the daylight sensor will adjust the light level to what is needed depending on the ambient daylight. After leaving the room the system adjusts ventilation and cool-ing/heating to the preset low energy values and turns off the light. eHybrid has acted as the intelligent energy saver it is.

The eHybrid system solution allows you to create an environmental friendly and economical solution for your project. Almost all Lindab active chilled beams can be part of the eHybrid system solution. This makes eHybrid a solution that fits all projects with active chilled beams. To see which features are possible for our various beams, we refer to table 3.

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80 %

60 %

40 %

20 %

0Standard chilled beam

solutioneHybridsolution

100 %

Fan energi

Cooling

Heating ofventilation air

Transmissionfacade

Lightning


Low energy use and added sustainability: The use of different environmental and energy classification rank-ings as LEED, BREEAM, Green Building and Green Star is steadily on the rise. The reason for that is simple, both societies, owners, tenants and users wants buildings that combine a good indoor climate with low energy use and a sustainable performance.

Letting an eHybrid system manage the room’s ventila-tion, cooling/heating and lighting means an improved en-ergy and environmental ranking and of course happy and satisfied tenants. eHybrid is also the ideal indoor climate system when sustainable energy sources are used – heat pumps, free cooling from sea- or groundwater and sur-plus heating. Utilizing the eHybrid potential to its maxi-mum, and combining it with the use of renewable energy sources, will make a substantial and a positive difference in these types of rankings.

High flexibility and future adaptability: As with our other chilled beams an eHybrid system offers a lot of ar-chitectural freedom and easy adaption to future room us-age. An eHybrid system can of course be used together with a traditional wall-mounted radiator system, but it can also replace the radiator system and be the main heat-ing unit in the room. eHybrid makes the use of partition-ing glass walls, glass façades and unrestrained door and window placement possible, without having to consider the limits that the piping of a conventional radiator system puts on the interior architecture.

Smart technology for energy savings

Combining the best from water and air technology into the eHybrid system results in a number of energy sav-ing advantages. eHybrid automatically selects the right airflow, from needed fresh air volumes when there is presence down to a minimum set flow when there is no presence. Furthermore the demand controlled lighting by eHybrid cuts energy both by reducing the time the light is used and by automatically reducing the light output according to outside light through windows and the am-bient light in the room from other light sources. Even the “Green” fluorescents are 10% more effective compared to regular T5 tubes to save energy.

The measurements carried out by the independent test-ing institute, WSP, show an energy saving of almost 34 % for the demand controlled eHybrid, compared with a typical room installation using chilled beams. WSP is one of Europe’s biggest consulting firms.

Diagram 1

The best indoor climate system at no extra cost

Simplifying construction is one of Lindab’s core values and it was in the centre when we developed the eHybrid system.

By combining ventilation, heating, cooling and lighting functions into one plug’n’play unit we not only made the installations that much simpler and faster. Bringing to-gether the technical devices into one unit also means an attractive investment cost. Comparing this investment to one made up of standalone products, results in a clear advantage for eHybrid. In practise this means the best indoor climate at no extra cost. Add to that around 30% lower energy costs and the eHybrid really defines itself as the new standard for economical, sustainable and com-fortable indoor climate.

The production process of eHybrid, as well as the materi-als and components in the concept, have been chosen from a sustainability perspective.

A recent study by independent consultant WSP, compar-ing a conventional room system containing chilled beams with eHybrid in various operating conditions, clearly shows the reduced energy use of eHybrid. WSP’s LEED calculations, based on the typical 70 % occupancy of of-fice premises, resulted in energy savings of around 34 % using eHybrid and also increased the LEED point needed for the higher certification levels. (See diagram 1).

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eHybrid


eHybrid in different interiorsSingle OfficeA single office can be considered as a separate control zone. In this office one eHybrid is installed for all climate needs. In case of absence all the supply systems reg-ulated by eHybrid will be set to a minimum level. This means that lighting is off and fresh air is switched off or set to the desired minimum level. When there is absence, the Regula Combi controller enters stand-by mode which also means that the temperature has been allowed to slide relative to the setpoint value to reduce the need for cooling/heating.

An office has different needs for ventilation, cooling / heating and lighting depending on if the room is in use or not. With eHybrid in your office building, you do not have to worry about wasting energy unnecessarily. eHybrid will adapt to the actual needs and minimize your energy consumption and costs without reducing the level of comfort.

When a person enters the room eHybrid turns into pres-ence mode, light turns on, ventilation damper opens and the Regula Combi will reduce the dead zone and regulate cooling/heating to reach the desired temperature. The combined presence and light sensor will also regulate the light output in order to adapt to ambient light coming from windows or other light sources. When the room is empty again, Regula Combi will return to the stand-by mode after 20 minutes. If the temperature in the room during absence would slide outside the expanded dead zone, the valve for cooling or heating will open and air damper will gradually open until the temperature re-enters the expanded dead zone.

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eHybrid


Conference roomConference or meeting rooms are just like single offices defined as one climate zone and are controlled the same way regarding fresh air, temperature and lighting. Here we see a solution where one eHybrid Master together with a number of slave units regulates the room.

Open OfficeIn an open office environment, many people share the same indoor environment. This means that the supply systems such as ventilation, cooling, heating and lighting cannot fully be adapted to the individual. Normally such offices are handled as one regulation zone.

eHybrid makes it possible to divide the open office space in smaller local control zones. In these zones, presence sensors will control both the overall and local supplies to optimize both the indoor climate and energy use. If a presence sensor on a vacant workspaces is activated by a passerby, the supply systems will start but revert to standby after 20 minutes.

Fresh air supply is controlled by each local presence sensor that is activated. This also means that fresh air is always supplied locally at the individual workspace. If the room temperature cannot be maintained at the desired level due to the number of eHybrid beams that are active, the air valve on the eHybrid units in stand-by mode will be activated and gradually open until room temperature again is within the defined dead zone.

Lighting is here defined as general lighting in walk-ing areas and the rest as local workplace lighting. This means that lights in walking areas lights up when the first person enters the office and then is enabled as long as at least one of the workplace lights are active. All light will also be regulated according to the ambient light.

All light equipment that is DALI compatible can be added to eHybrid’s Actilume system.

Even in an open plan office, you can have your local climate zone adapted to the individual workplace. You can also choose if you want to group some of the features that eHybrid control, such as ventilation and lighting.

A conference room is often used intermittently. eHybrid detects when the room is used and ensures that a good indoor environment is achieved.

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eHybrid

24V supplyLink

SlaveMasterMaster Slave

Link24V supply 24V 24V

C C C CH H H H

eConnect eConnect eConnect eConnect

PIR PIR


High efficiency ECO T5- light

Cooling pipe connection

heating pipe connection

Supply air damper

Exhaust air damper

Integrated Regula Combi

room controller

Actilume presence, light level regulation

Regula Convert

Integrated cooling valve and actuator

Integrated heating valve and actuator

Regula eConnect

Regula eConnect Regula eConnect makes it easy to connect all neces-sary functionalities to a group of eHybrid units. Regula eConnect is a connection hub on each beam where all input/output for regulation, communication and sup-ply will be connected. Depending on how you want the system to be equipped and regulated, you can choose if a unit should operate as a master or a slave for room regulation. For all low currency signals Regula eConnect has interfaces with RJ-standard connectors and for high currency and linking we use PCB connectors from Wei-dmüller. Further information is to be found in our Regula brochure. ( www.lindQST.com ).

Regula Combi Regula Combi controls both air and water valves for cooling and heating in sequence, as well as communicate with Modbus/EXOline master systems. Regula Combi can control one master unit plus up to 9 slave units as a group and has a special program for the eHybrid solution and can react on both presence and CO2. Further information can be found in our Regula brochure. ( www.lindQST.com ).

Schematic eHybrid system

eHybrid system components

Schematic picture of placement of eHybrid parts in a Lindab professor beam.

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eHybrid

6 m

5 m

Sensor Orientation

X

Y

Passive Infra Red (PIR) Detection area at 2.5 m height:• 4x4 m (sensitive for small movements)• 6x5 m (sensitive large movements)

Light sensor:Ambient light monitormonitoring 25 to 350 lux at sensor Monitoring area

When placed at a height of 3 m the following values are valid: Infrared receiverSignalRange

Maximum height PIR: 3.5 m• X-angle PIR: 82º• Y-angle PIR: 100º

6 m

5 m

Sensor Orientation

X

Y





6 m

5 m

Sensor Orientation

X

Y






Water valves and actuators eHybrid can be equipped with Lindab’s water valves and actuators. These valves have an adjustable KV-value and ensures easy setup with our 24V on/off “snap on” actuators, alternatively Lindabs analogue actuators 0-10V can be used.

Passive Infra Red (PIR) Detection area at 2,5 m height: - 4 x 4 m (sensitive to small movements) - 6 x 5 m (Sensitive to large movements)

Maximum height PIR: 3.5 m - X-angle PIR 82º - Y-angle PIR: 100º


Philips Actilume presence and light level detection system: Actilume is a plug’n’play solution for open plans (up to 9 luminaires) or cell offices. It is used in a Master and Slave concept, easy to use and easy to install. When presence is detected, the Actilume controller sends a signal to a DALI com-patible light gear to switch on the light, and sends a signal to the Regula Combi to change to occupancy mode. Depending on the ambient light level in the room detected by the sensor, the Actilume controller will increase/decrease light output until the stated light level is reached. When there has been no presence in the room for a stated time, the Actilume controller will switch off the light and the Regula Combi enters into stand by mode. Light features can be programmed according to the Philips Actilume system. For further information please contact Lindab.

Regula Convert To be able to use the Actilums presence sensor to function in Regula Combi when presence is activated, the Regula Convert is needed. Regula Convert converts the signal from the sensor so it can be used in Regula Combi.

Air exhaust valve eHybrid in combination with e.g a Professor beam can be equipped with an exhaust air valve in combination with the supply air. This makes it possible to balance the ventilation easily by using our double air damper.

ehybrid motorized damper One of the main energy sav-ing components in the eHy-brid system is the motorized air damper. Depending on your system this damper can be either a supply damper or a com-bined supply & exhaust damper. The damper will be controlled by Regula Combi in combination with sensors for presence, and CO2 (Optional).

ActuatorValve

When placed at a height of 3m the following Values are valid:

Infrared receiver: Signal range

Light sensor: Ambient light monitor monitoring 25 to 350 lux at sensor monitoring area

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eHybrid



Lindab eLight The integrated light unit for eHybrid is developed to give a good luminary output with high efficiency. Light pattern is optimized to be used as general light source in open of-fice solutions, as well as work space light in single offices. eLight is equipped with a DALI compatible gear that will be controlled by the Actilume system to save energy by presence detection and auto levelling. In addition to this system eLight has ECO fluorescent T5 tubes that will save another 10% compared to regular T5 tubes. The “Master” light switch makes it easy to change or re-arrange a group of DALI light units in the room that are equipped with presence detection sensors, to react the same way. The switch turns off the local sensor which makes it possible to let one master unit control several slave units. This means that the master unit is the one that detects presence and light level and will control the other light units. For room regulation, Regula Combi can still be set to react on the local presence sensor or by another sensor in a group that is defined as a Master for room regulation. Further information can be found in Lindab’s Lighting brochure. ( www.lindQST.com )

Silencer LRCA-d The LRCA-d silencer is specially designed to reduce frequencies generated by the VAV damper used in eHybrid. ( See table 1 and 2).

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Sound details

eHybrid uses a motorized damper to change the air flow between fully open and minimum flow. When the damper closes, the sound level generated by the chilled beam reduces, but instead the damper will generate sounds that can be distracting.

The maximum noise level from the damper occurs at a throttle angle of about 45 degrees and will then be the dominant sound source compared to the chilled beam. Total sound level depends on the beams self-damping data. In table 2 you will find sound data for different chilled beam types both with and without a silencer. To reduce the damper sound, Lindab has developed a silencer that almost reduces all sound generated by the damper. Using our LRCA-d silencer will result in a sound level from damper that is below 25 dB(A). When using eHybrid exhaust functionality or installed in an open office, we always recommend using the LRCA-d silencer. For a fully open damper, sound generated by the damper can be excluded and sound generated by the beam will be dominant. Sound data for our beams you will find in our catalogue or at www.LindQST.com .

Max sound generated by damper at 10%-30% flow

Total pressure [Pa]* Lindab active beams

Ø100Plexus 120 Plexus 60

For all beams using LRCA-d Silencer

140 37 41 45 < 25

120 34 38 43 < 25

100 33 37 42 < 25

80 31 36 39 < 25

60 28 32 37 < 25

40 25 27 33 < 25

Sound attenuation [dB] at mean frequency [Hz]

63 125 250 500 1K 2k 4K 8K Hz

0 9 3 12 13 9 7 5 dB

Table 2. Shows the max sound effect at reduced air volume generated by damper in combination with a chilled beam. For sound data at fully open damper we refer to sound data for the actual chilled beam

* Professor, Plafond, Architect.

Table 1. Sound attenuation.

Professor with supply and exhaust dampers and silencers

Professor with supply damper and silencer.

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ProfessorThe supply air beam that can cope with anything!

Function: Cooling, heating, supply air, lighting with built-in control equipment.

Use: Offices, hotels, restaurants, conference rooms, schools.

Installation: Integrated into a suspended ceiling (Professor I) or suspended installation (Professor F).

Capacity: Cooling effect of up to 1500 W. Air volume of up to 40 l/s..

Worth noting: Low installation height – only 120 mm

See brochure of Professor chilled beam for further informa-tion. ( www.lindQST.com ).

Premum and PremaxOutstanding flexibility and power!

Function: Cooling, heating, supply air, exhaust air, built-in valves/actuators.


Installation: Integrated into a suspended ceiling.

Capacity: Cooling effect of up to 2500 W. Air volume of up to 65 l/s

Worth noting: Market leading flexibility and cooling perform-

Chilled beams typesProfessor

Architect moon

*Other Lindab active beams

Comments

Master Slave Master Slave Master Slave

Cooling • • • • • •

Heating • • • • • •External heat sources as radiators can be added to the system

Supply air damper • • • • • •

Supply air damper silencer • • • • • •The Need of damper de-pends on sound generation from damper (See table 1)

Exhaust damper and silencer • •In case of using an exhaust damper, exhaust silencer need to be used

Built-in Regula Combi • • • Regula Combi can also be wall mounted

Regula eConnect • • • • • •

Pre mounted valves and actuators • • • • • •Valves and actuators for Plexus have to be connected on site due to packing

Built-in light • • • • External Dali compatible light sources can be added

Built-in presence sensor • • • External sensor can be used

ance. Including advanced adjustment systems

See brochure of Premum or Premax chilled beam for further information. ( www.lindQST.com ).

PlexusThe flexible supply air beam!

Function: Cooling, heating, ventilation, with built-in control-ler


Installation: Integrated with the suspended ceiling

Capacity: Cooling effect of up to 1000 W, air quantity of up to 52 l/s, 80 pa (Plexus 60). Cooling effect of up to 1500 W, air quantity of up to 45 l/s, 80 pa (Plexus 120).

Worth noting: Plexus 360° air diffusion. 30% reduced draught risk because of shorter air throws. Easy to install into ceiling, ventilation, cooling, zone-heating and regulation, JetCone adjustment, all in one!

See brochure of Plexus chilled beam for further information. ( www.lindQST.com ).

* Combinations for Lindab’s eHybrid solutions for Plexus, Plafond, Polaris, Premum, Premax and Architect (except Architect-Moon ).

Table 3.

Samples of chilled beams that can be adapted to eHybrid system solution

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Standard Chilled beam solution eHybrid solutionStandard + light eHybrid + Light


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Diagram 1

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Technical calculations

Smart technology saves energy!

To show the potential of the Lindab eHybrid system solutions we engaged WSP, who is an internationally known consultant firm of energy calculations to perform calculations of energy use in a new office building. To see how the outdoor environment affects the energy consumption of the building, we also placed the building in two geographically different locations, Copenhagen, Denmark, and Milan, Italy.

To facilitate comparison, we started from an already energy-efficient system with active chilled beams and modern luminaires and a traditional CAV ventilation system, but without the presence control. After calculating energy use of this system, we applied the eHybrid solution for this facility and compared the results.

In the results shown below we can see that although the total energy use varies slightly depending on location, the saving potential was similar and is just over 30% with an average presence of 70% when using the eHybrid system solution.

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Documents

lindab | we simplify construction eHybriditsolution.lindab.com/LindabWebProductsDoc/PDF/... · “Green” fluorescents are 10% more effective compared to regular T5 tubes to save