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Novel ammonia sorbents "porous matrix modified by active salt" for adsorptive heat transformation : 3. Testing of "BaCl2/vermiculite" composite in a lab-scale adsorption chiller

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Veselovskaya, J. V., Critoph, Robert E., Thorpe, Roger, Metcalf, Steven J., Tokarev, M. M. and Aristov, Yu. I. (2010) Novel ammonia sorbents "porous matrix modified by active salt" for adsorptive heat transformation : 3. Testing of "BaCl2/vermiculite" composite in a lab-scale adsorption chiller. Applied Thermal Engineering, Vol.30 (No.10). pp. 1188-1192. doi:10.1016/j.applthermaleng.2010.01.035

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Official URL: http://dx.doi.org/10.1016/j.applthermaleng.2010.01...

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Abstract

A composite adsorbent composed of BaCl2 impregnated into expanded vermiculite has been synthesized and tested in a laboratory scale adsorption chiller. Previous work has established the promising theoretical performance of this adsorbent with ammonia as a refrigerant, in terms of equilibrium uptake, suitable equilibrium temperatures for use in air conditioning applications and good reaction dynamics. Analysis of the adsorption phase revealed a simple exponential approach to equilibrium uptake which was not previously observed in larger scale experiments.

It was demonstrated that this material can provide effective operation of the chiller using a low potential heat source (80-90 degrees C) giving COP as high as 0.54 +/- 0.01 and SCP ranging from 300 to 680 W/kg,. The specific cooling power depends strongly on the driving temperature difference and the cycle duration. (C) 2010 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Subjects: Q Science > QC Physics
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Journal or Publication Title: Applied Thermal Engineering
Publisher: Pergamon-Elsevier Science Ltd.
ISSN: 1359-4311
Official Date: July 2010
Dates:
DateEvent
July 2010Published
Volume: Vol.30
Number: No.10
Number of Pages: 5
Page Range: pp. 1188-1192
DOI: 10.1016/j.applthermaleng.2010.01.035
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Royal Society (Great Britain), Russian Foundation for Basic Researches
Grant number: 09-08-92604-KO, 08-08-00808

Data sourced from Thomson Reuters' Web of Knowledge

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