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− | = State of the Art world wide Solar Air Conditioning <ref name="Henning, H. (2010) :Solar Air-conditioning and refrigeration. Achievements and challenges. Fraunhofer ISE. Presented at EuroSun 2010. Graz.">Henning, H. (2010) :Solar Air-conditioning and refrigeration. Achievements and challenges. Fraunhofer ISE. Presented at EuroSun 2010. Graz.</ref><ref name=" https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf "> https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf </ref><br/> = | + | = State of the Art world wide Solar Air Conditioning <ref name="https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf"> https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf </ref><ref name="Henning, H. (2010) :Solar Air-conditioning and refrigeration. Achievements and challenges. Fraunhofer ISE. Presented at EuroSun 2010. Graz.">Henning, H. (2010) :Solar Air-conditioning and refrigeration. Achievements and challenges. Fraunhofer ISE. Presented at EuroSun 2010. Graz.</ref><br/> = |
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| Despite intensive research over the past decade,SAC has still reached only a very small market penetration. Yet, a well established SAC research society and scientific field are working on further market development.<ref name="https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf">https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf</ref><br/> | | Despite intensive research over the past decade,SAC has still reached only a very small market penetration. Yet, a well established SAC research society and scientific field are working on further market development.<ref name="https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf">https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf</ref><br/> |
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| <br/><br/> | | <br/><br/> |
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− | == [[Solar Thermal Technologies|Solar Thermal]] vs. [[Photovoltaic (PV)|Photovoltaic (PV)]]<br/> == | + | == Solar Thermal vs. Photovoltaic (PV)<br/> == |
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| New discussion due to decreasing PV prices. Could it be more economical to run vapour compression chiller with a PV module than operating solar thermally powered chillers? <u>The discussion is still going on, there is no clear answer yet available to this question as the answer depends o a range of different thinkable boundary:</u><br/> | | New discussion due to decreasing PV prices. Could it be more economical to run vapour compression chiller with a PV module than operating solar thermally powered chillers? <u>The discussion is still going on, there is no clear answer yet available to this question as the answer depends o a range of different thinkable boundary:</u><br/> |
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| = Country Experiences<br/> = | | = Country Experiences<br/> = |
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− | == Solar Cooling in [[India Energy Situation#Solar Energy|India]]<br/> == | + | == Solar Cooling in India<br/> == |
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− | In India, boundary conditions for solar cooling are very favourable: there is more irradiation and at the same time more cooling degree days than in areas where most systems so far have been installed (e.g. USA, MENA, South Europa) - but partly in some regions the climate is also more humid which asks for adapted systems'''<ref name="Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384">Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384</ref>''' Ideal boundary conditions (high solar radioation, long cooling season). The only drawback are not prohibitive high energy price, yet this is neutralized trough extensive electricity shortages. Many institutions, companies etc. have their own back up systems for electrcity supply, often also for cooling. Indian customers are looking for reliable cooling options - this is a chance for solar applications. Moreover, the cooling demand is growing further which is endangering grid stability even more<ref name="Singh, S.K. (2011): Solar Refrigeration and Air-conditioning. Solar Energy Center. MNRE. Ppt.">Singh, S.K. (2011): Solar Refrigeration and Air-conditioning. Solar Energy Center. MNRE. Ppt.</ref> The total installed cooling load is 35.000MWe (28.7% of installed capacity)'''<ref name="Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384">Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384</ref>'''<br/>'''Residential sector – great future challenge'''<br/> | + | In [[India_Energy_Situation|India]], boundary conditions for solar cooling are very favourable: there is more irradiation and at the same time more cooling degree days than in areas where most systems so far have been installed (e.g. USA, MENA, South Europa) - but partly in some regions the climate is also more humid which asks for adapted systems'''<ref name="Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384">Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384</ref>''' Ideal boundary conditions (high solar radioation, long cooling season). The only drawback are not prohibitive high energy price, yet this is neutralized trough extensive electricity shortages. Many institutions, companies etc. have their own back up systems for electrcity supply, often also for cooling. Indian customers are looking for reliable cooling options - this is a chance for solar applications. Moreover, the cooling demand is growing further which is endangering grid stability even more<ref name="Singh, S.K. (2011): Solar Refrigeration and Air-conditioning. Solar Energy Center. MNRE. Ppt.">Singh, S.K. (2011): Solar Refrigeration and Air-conditioning. Solar Energy Center. MNRE. Ppt.</ref> The total installed cooling load is 35.000MWe (28.7% of installed capacity)'''<ref name="Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384">Sivak, M. (2009): Potential demand for cooling in the 50 largest metropolitan areas of the world. Implications for developing countries. Energy Policy 37 (2009) 1382-1384</ref>'''<br/>'''Residential sector – great future challenge'''<br/> |
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| *Penetration level for A/C < 1% only and switch from air evaporation systems expected <ref name="DSCL Energy Services Company Ltd. (2010): Trigeneration in India Market Assessment Study .Trigeneration Technology within the Indian Building Sector . Berliner Energieagentur GmbH (editor). Commissioned by GTZ.">DSCL Energy Services Company Ltd. (2010): Trigeneration in India Market Assessment Study .Trigeneration Technology within the Indian Building Sector . Berliner Energieagentur GmbH (editor). Commissioned by GTZ.</ref> | | *Penetration level for A/C < 1% only and switch from air evaporation systems expected <ref name="DSCL Energy Services Company Ltd. (2010): Trigeneration in India Market Assessment Study .Trigeneration Technology within the Indian Building Sector . Berliner Energieagentur GmbH (editor). Commissioned by GTZ.">DSCL Energy Services Company Ltd. (2010): Trigeneration in India Market Assessment Study .Trigeneration Technology within the Indian Building Sector . Berliner Energieagentur GmbH (editor). Commissioned by GTZ.</ref> |
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| *Solar Energy Center, TERI, IITs,… | | *Solar Energy Center, TERI, IITs,… |
− | *Thermax (3-effect VAM with COP of 1.7-1.8)<ref name="http://www.commodityonline.com/news/india-tech-breakthrough-in-solar-thermal-cooling-system-40460-3-1.html">http://www.commodityonline.com/news/india-tech-breakthrough-in-solar-thermal-cooling-system-40460-3-1.html</ref>, Baskara Solar, Gadhia Solar<ref name="http://www.solarthermalworld.org/node/1028 ">http://www.solarthermalworld.org/node/1028 </ref>,.. | + | *Thermax (3-effect VAM with COP of 1.7-1.8)<ref name="http://www.commodityonline.com/news/india-tech-breakthrough-in-solar-thermal-cooling-system-40460-3-1.html">http://www.commodityonline.com/news/india-tech-breakthrough-in-solar-thermal-cooling-system-40460-3-1.html</ref>, Baskara Solar, Gadhia Solar<ref name="http://www.solarthermalworld.org/node/1028">http://www.solarthermalworld.org/node/1028 </ref>,.. |
| *Mamata - only project with evacuated tube collectors, since 2006, little maintenance needed. | | *Mamata - only project with evacuated tube collectors, since 2006, little maintenance needed. |
| *still early pilot phase | | *still early pilot phase |
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| *Efficiency of solar equipment needs to be improved | | *Efficiency of solar equipment needs to be improved |
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| + | <br/> |
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| == <br/>First Southern Africa Fresnel-solar Cooling system for a Data-Center at MTN Johannesburg == | | == <br/>First Southern Africa Fresnel-solar Cooling system for a Data-Center at MTN Johannesburg == |
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− | Industrial Solar GmbH provided the leading South African mobile operator MTN (Mobile Telecom Networks) in Johannesburg/South Africa with a solar thermal cooling system. The Fresnel collector powers an absorption chiller which supports the local district cooling grid.</span> Its Cooling capacity lies about 330 kW<ref>http://bit.ly/1LfePrw</ref>. | + | Industrial Solar GmbH provided the leading South African mobile operator MTN (Mobile Telecom Networks) in Johannesburg/South Africa with a solar thermal cooling system. The Fresnel collector powers an absorption chiller which supports the local district cooling grid. Its Cooling capacity lies about 330 kW<ref name="http://bit.ly/1LfePrw">http://bit.ly/1LfePrw</ref>. |
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| Industrial Solar GmbH is a technology and solution provider for solar process heat and solar thermal cooling. It was founded in 2008 in the environment of the Fraunhofer Institute for Solar Energy Systems in Freiburg, Germany. The solutions of Industrial Solar are built upon its innovative linear concentrating Fresnel collector which is optimized for industrial applications in the medium power range. Industrial Solar has already realized various projects in all kind of industries in different countries. Moreover, Industrial Solar has developed close partnerships with major industrial companies and offers various products and services for industrial applications.Its is also network partner of the [[Green Cooling Initiative|Green Cooling Initiative (GCI)]] which promotes environmental sound cooling solution worldwide. | | Industrial Solar GmbH is a technology and solution provider for solar process heat and solar thermal cooling. It was founded in 2008 in the environment of the Fraunhofer Institute for Solar Energy Systems in Freiburg, Germany. The solutions of Industrial Solar are built upon its innovative linear concentrating Fresnel collector which is optimized for industrial applications in the medium power range. Industrial Solar has already realized various projects in all kind of industries in different countries. Moreover, Industrial Solar has developed close partnerships with major industrial companies and offers various products and services for industrial applications.Its is also network partner of the [[Green Cooling Initiative|Green Cooling Initiative (GCI)]] which promotes environmental sound cooling solution worldwide. |
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| + | <br/> |
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− | = Recommendations for Pushing the Market Development for Solar Cooling<ref>http://www.estif.org/fileadmin/estif/content/policies/downloads/D23-solar-assisted-cooling.pdf </ref><ref>https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf </ref><br/> = | + | = Recommendations for Pushing the Market Development for Solar Cooling<ref name="http://www.estif.org/fileadmin/estif/content/policies/downloads/D23-solar-assisted-cooling.pdf ">http://www.estif.org/fileadmin/estif/content/policies/downloads/D23-solar-assisted-cooling.pdf </ref><ref name="https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf ">https://www.iea-shc.org/publications/downloads/IEA-SHC-Solar-Cooling-Position-Paper.pdf </ref><br/> = |
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| '''Training and awareness raising'''<br/> | | '''Training and awareness raising'''<br/> |
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| <br/> | | <br/> |
− |
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| = Further Information<br/> = | | = Further Information<br/> = |
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| *[http://www.tecsol.fr/checklist/CheckList3.asp Feasibility checklist for solar cooling projects (European focus)]<br/> | | *[http://www.tecsol.fr/checklist/CheckList3.asp Feasibility checklist for solar cooling projects (European focus)]<br/> |
| *[[Portal:Solar|Portal:Solar]]<br/> | | *[[Portal:Solar|Portal:Solar]]<br/> |
− | *[[Cooling_for_Agriculture|Cooling for Agriculture]]<br/> | + | *[[Cooling for Agriculture|Cooling for Agriculture]]<br/> |
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| <br/> | | <br/> |
− |
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| = References = | | = References = |
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| <references /> | | <references /> |
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− | [[Category:Cooling]]
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− | [[Category:Sustainability]]
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− | [[Category:India]]
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− | [[Category:Productive_Use]]
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− | [[Category:Powering_Agriculture]]
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| [[Category:Solar]] | | [[Category:Solar]] |
| + | [[Category:Powering_Agriculture]] |
| + | [[Category:Productive_Use]] |
| + | [[Category:India]] |
| + | [[Category:Sustainability]] |
| + | [[Category:Cooling]] |
Why solar cooling? In many countries, especially in developing countries in the South, with increasing economic development and population growth, demand for cooling is increasing rapidly (e.g. ric Arab Countries - 75% of installed poer is used for sooling). Often, this additional electricity load puts further stress on the mostly already shaky grids in these countries, leading to further power cuts. Also, in many areas cooling for agricultural products, vaccines, etc. is an essential need which cannot be served. In this context, there is a lot of potential for solar cooling.
The main arguments for solar assisted cooling (SAC) originate from an energy saving perspective:
Despite intensive research over the past decade,SAC has still reached only a very small market penetration. Yet, a well established SAC research society and scientific field are working on further market development.[1]
A range of challenges exist why solar cooling has not taken off so far. In many cases, it is a combination of different issues.
Still, most of the issues are related to the technology. One of the main problems beeing that there is not one single solution and experiences with new applications are collected constantly
New discussion due to decreasing PV prices. Could it be more economical to run vapour compression chiller with a PV module than operating solar thermally powered chillers? The discussion is still going on, there is no clear answer yet available to this question as the answer depends o a range of different thinkable boundary:
Industrial Solar GmbH provided the leading South African mobile operator MTN (Mobile Telecom Networks) in Johannesburg/South Africa with a solar thermal cooling system. The Fresnel collector powers an absorption chiller which supports the local district cooling grid. Its Cooling capacity lies about 330 kW[8].
Industrial Solar GmbH is a technology and solution provider for solar process heat and solar thermal cooling. It was founded in 2008 in the environment of the Fraunhofer Institute for Solar Energy Systems in Freiburg, Germany. The solutions of Industrial Solar are built upon its innovative linear concentrating Fresnel collector which is optimized for industrial applications in the medium power range. Industrial Solar has already realized various projects in all kind of industries in different countries. Moreover, Industrial Solar has developed close partnerships with major industrial companies and offers various products and services for industrial applications.Its is also network partner of the Green Cooling Initiative (GCI) which promotes environmental sound cooling solution worldwide.