Difference between revisions of "Desiccant Cooling System (DCS)"
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{{Desiccant Cooling System (DCS) | {{Desiccant Cooling System (DCS) | ||
| − | |Description= | + | |Description=Unlike conventional HVAC systems, sorption cooling systems do not require an external cooling source for cooling and dehumidification of the air. Conventional HVAC systems are systems that supply mechanical energy (compression cooling) whereas sorption cooling machines use heat as energy source. The efficiency of both systems is comparable. |
| − | |Advantages= | + | Traditionally, the technology is used in the process industry (e.g. in breweries or for food production) to ensure the refrigeration supply in the production. Five main components are necessary to run a sorption cooling system. Condensor, evaporator, expeller (also named reactor or generator), absorber and pump. |
| − | |Disadvantages= | + | Depending on the mode of binding the water vapor – there is a distinction between absorption (continuous cooling is possible) and adsorption (nearly continuous cooling possible). In both cases the air is dehumidified and cooled by the release of latent heat. |
| − | |Application barriers= | + | The technology is available with solid (adsorption cooling) and fluid (absorption cooling) absorbers. Both are hygroscopic materials. The water vapor contained in the air is removed from the air stream due to the difference in the partial pressure. In parallel the temperature of the air and thereby the room temperature is reduced. |
| − | |Information sources= | + | |Advantages=*High efficiency |
| − | + | *More eco-friendly than conventional HVAC systems | |
| − | |Trade= | + | *Low investment and operating costs |
| + | *Sorption cooling systems with fluid absorbers: Sorption and generation can be separated, due to the separate storage of the two fluid materials | ||
| + | *Energy for regeneration could be provided by solar energy | ||
| + | |Disadvantages=Adjustment necessary for certain buildings, climatic conditions and occupancy | ||
| + | |Characteristic features=Needs to be adjusted to suit frame conditions | ||
| + | |Application barriers=No sorption coolers known that are used for any building facilities | ||
| + | |Information sources=http://planck.caltech.edu/coolers.html <br />http://ecn.nl/nl/nieuws/newsletter-en/archive-2008/march-2008/topmacs/ | ||
| + | |Trade=Building services | ||
|Nominal Power InputMin=0,05 | |Nominal Power InputMin=0,05 | ||
|Nominal Power InputMax=2 | |Nominal Power InputMax=2 | ||
Latest revision as of 20:18, 28 February 2017
[edit]
| Description | Unlike conventional HVAC systems, sorption cooling systems do not require an external cooling source for cooling and dehumidification of the air. Conventional HVAC systems are systems that supply mechanical energy (compression cooling) whereas sorption cooling machines use heat as energy source. The efficiency of both systems is comparable.
Traditionally, the technology is used in the process industry (e.g. in breweries or for food production) to ensure the refrigeration supply in the production. Five main components are necessary to run a sorption cooling system. Condensor, evaporator, expeller (also named reactor or generator), absorber and pump. Depending on the mode of binding the water vapor – there is a distinction between absorption (continuous cooling is possible) and adsorption (nearly continuous cooling possible). In both cases the air is dehumidified and cooled by the release of latent heat. The technology is available with solid (adsorption cooling) and fluid (absorption cooling) absorbers. Both are hygroscopic materials. The water vapor contained in the air is removed from the air stream due to the difference in the partial pressure. In parallel the temperature of the air and thereby the room temperature is reduced. |
|---|---|
| Advantages |
|
| Disadvantages |
Adjustment necessary for certain buildings, climatic conditions and occupancy |
| Characteristic features | |
| Application barriers |
No sorption coolers known that are used for any building facilities |
| Information sources | http://planck.caltech.edu/coolers.html http://ecn.nl/nl/nieuws/newsletter-en/archive-2008/march-2008/topmacs/ |
| Image | |
| Trade: | Building services |
| Parameter | Minimal Value | Maximal Value | Unit |
|---|---|---|---|
| Nominal Power Input |
kW | ||
| EER | |||
| Water Flow Rate |
l/h | ||
| Air Flow Rate |
m3/h | ||
| Sound Power Level |
dBA | ||
| Sound Pressure Level |
dBA | ||
| Operating Temperature Range |
°C | ||
| Dimensions |
mm | ||
| Weight |
kg | ||
| Cooling Capacity |
kW | ||
| COP | |||
| COP Annual Degradation Rate |
% | ||
| Investment Cost |
€ | ||
| Operational Cost |
€/year | ||
| Replacement Cost |
€/year | ||
| Life Expectancy |
>25">25" cannot be used as a page name in this wiki. |
years |
| Deterioration | Description |
|---|---|
| Causes | |
| Parameter | |
| Degradation Rate | |
| Measurement |
| The Design4Energy project aims to address evolutionary life-cycle evolutionary design methodology able to create energy-efficient buildings flexibly connected with the neighbourhood energy system. | 
|
BL(Ti)=0.788 
|
|---|
