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Carbon-ammonia pairs for adsorption refrigeration applications : ice making, air conditioning and heat pumping
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Tamainot-Telto, Zacharie, Metcalf, Steven J., Critoph, Robert E., Zhong, Y. and Thorpe, Roger (2009) Carbon-ammonia pairs for adsorption refrigeration applications : ice making, air conditioning and heat pumping. International Journal of Refrigeration, Vol.32 (No.6). pp. 1212-1229. doi:10.1016/j.ijrefrig.2009.01.008 ISSN 0140-7007.
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Official URL: http://dx.doi.org/10.1016/j.ijrefrig.2009.01.008
Abstract
A thermodynamic cycle model is used to select an optimum adsorbent-refrigerant pair in respect of a chosen figure of merit that could be the cooling production (MJ m(-3)), the heating production (MJ m(-3)) or the coefficient of performance (COP). This model is based mainly on the adsorption equilibrium equations of the adsorbent-refrigerant pair and heat flows. The simulation results of 26 various activated carbon-ammonia pairs for three cycles (single bed, two-bed and infinite number of beds) are presented at typical conditions for ice making, air conditioning and heat pumping applications. The driving temperature varies from 80 degrees C to 200 degrees C. The carbon absorbents investigated are mainly coconut shell and coal based types in multiple forms: monolithic, granular, compacted granular, fibre, compacted fibre, cloth, compacted cloth and powder. Considering a two-bed cycle, the best thermal performances based on power density are obtained with the monolithic carbon KOH-AC, with a driving temperature of 100 degrees C; the cooling production is about 66 MJ m(-3) (COP = 0.45) and 151 MJ m(-3) (COP = 0.61) for ice making and air conditioning respectively; the heating production is about 236 MJ m(-3) (COP = 1.50).
Item Type: | Journal Article | ||||
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Alternative Title: | Les couples charbon actif-ammoniac pour les applications frigorifiques à adsorption : fabrication de glace, conditionnement d'air et pompes à chaleur | ||||
Subjects: | Q Science > QC Physics T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Library of Congress Subject Headings (LCSH): | Air-conditioning, Ammonia, Adsorption, Carbon, Activated, Heat pumps, Ice -- Manufacture, Thermodynamic cycles -- Mathematical models | ||||
Journal or Publication Title: | International Journal of Refrigeration | ||||
Publisher: | Elsevier Ltd. | ||||
ISSN: | 0140-7007 | ||||
Official Date: | September 2009 | ||||
Dates: |
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Volume: | Vol.32 | ||||
Number: | No.6 | ||||
Number of Pages: | 18 | ||||
Page Range: | pp. 1212-1229 | ||||
DOI: | 10.1016/j.ijrefrig.2009.01.008 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 8 December 2015 | ||||
Date of first compliant Open Access: | 8 December 2015 | ||||
Funder: | European Union (EU), Engineering and Physical Sciences Research Council (EPSRC), European Union (EU) | ||||
Grant number: | ENK5-CT2002-00632 (EU SOCOOL), TST4-CT-2005-012394 (EU TOPMACS), EP/C013808/1 (EPSRC) |
Data sourced from Thomson Reuters' Web of Knowledge
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