Date of download: 10/21/2017 Copyright © ASME. All rights reserved. From: Solar Cooling Economic Considerations: Centralized Versus Decentralized Options J. Sol. Energy Eng. 2005;128(2):231-236. doi:10.1115/1.2189871 Figure Legend: Levelized cooling costs (LCC) as function of solar fraction for a decentralized solar absorption system with single effect absorption chiller and flat plate collectors; and for centralized solar cooling based on the use of vapor compression air conditioning equipment (conventional COP=3 and high efficiency COP=5) and electricity from a central solar thermal power plant (STPP). For the STPP, a LEC=25c€∕kWhe and a 15% incremental cost for the user have been considered.

Date of download: 10/21/2017 Copyright © ASME. All rights reserved. From: Solar Cooling Economic Considerations: Centralized Versus Decentralized Options J. Sol. Energy Eng. 2005;128(2):231-236. doi:10.1115/1.2189871 Figure Legend: Levelized cooling costs and required solar field collector area for solar absorption cooling installations with different technologies. At low solar fractions, all designs present similar performances; FPC=flat plate collectors, ETC=evacuated tube collectors, SE=single effect absorption machine, and DE=double effect absorption machine. Building with 200m2 useful area.

Date of download: 10/21/2017 Copyright © ASME. All rights reserved. From: Solar Cooling Economic Considerations: Centralized Versus Decentralized Options J. Sol. Energy Eng. 2005;128(2):231-236. doi:10.1115/1.2189871 Figure Legend: Effect of absorption system investment costs on the LCC from a solar absorption cooling installation with a single effect absorption chiller and flat plate collectors. Results are presented for installations designed with two different solar multiples in the cooling season. For comparison, results are also shown for the centralized option implementing local vapor compression air conditioning equipment fed with electricity generated in solar thermal power plants (STPP), considering a LEC=25c€∕kWhe and a 15% increase of electricity costs for the final user.

Date of download: 10/21/2017 Copyright © ASME. All rights reserved. From: Solar Cooling Economic Considerations: Centralized Versus Decentralized Options J. Sol. Energy Eng. 2005;128(2):231-236. doi:10.1115/1.2189871 Figure Legend: Levelized cooling costs (LCC) of the centralized solar cooling option based on local vapor compression air conditioning equipment (actual technology COP=3 and efficient technology COP=5) as a function of levelized electricity costs (LEC) from the solar thermal power plant (STPP). For comparison purposes, the LCC of a decentralized solar absorption cooling installation with single effect absorption chiller and flat plate collectors designed with SM=1 is also presented.

Date of download: 10/21/2017 Copyright © ASME. All rights reserved. From: Solar Cooling Economic Considerations: Centralized Versus Decentralized Options J. Sol. Energy Eng. 2005;128(2):231-236. doi:10.1115/1.2189871 Figure Legend: Levelized cooling costs (LCC) of decentralized solar absorption cooling installations with single effect absorption chiller and flat collectors, designed with different cooling solar multiples, as a function of cooling fraction; that is, the fraction of the useful solar energy output used for the cooling application, being the rest used for other applications (DHW, heating, etc.). For comparison purposes, the LCC of centralized options based in vapor compression air conditioning equipment (current technology COP=3 and high efficiency COP=5) fed with electricity at LEC=25c€∕kWhe from a central solar thermal power plant (STPP) are also presented.