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Advanced heat driven hybrid refrigeration and heat pump systems

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Tamainot-Telto, Zacharie (2016) Advanced heat driven hybrid refrigeration and heat pump systems. In: 12th IEA Heat Pump Conference 2017 (HPC 2017), Rotterdam (The Netherlands), 15-18 May 2017. Published in: Proceedings of 12th IEA Heat Pump Conference : Rotterdam, June 2017 ISBN 9789090304120.

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Abstract

This paper describes two advanced heat driven hybrid refrigeration and heat pump systems. Each proposed conceptual hybrid system combines both thermal compressor and turbo-compressor. The turbine (coupled to a mechanical compressor) could be driven by direct expansion of high pressure and high temperature of desorbed gas coming out of the reactor beds (Adsorption Cycle - AdSC) or high pressure and high temperature steam coming out of a boiler (Rankine Cycle - RC). In both cases, the turbo-compressor is driving a separate Vapour Compression Cycle (VCC). For each system, a model is used to predict key performance indicators like COPs when the driving temperature is ranging from 100oC to 250oC. The Hybrid RC-VCC coefficient of performance (COP) is about 1.2 to 2 times better than Hybrid AdSC-VCC ones. With a condensing temperature of 40oC, an evaporating temperature 15oC and a driving temperature of 250oC, Hybrid RC-VCC COP is 2.6 while Hybrid AdSC-VCC COP is 1.4.

Item Type: Conference Item (Paper)
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Journal or Publication Title: Proceedings of 12th IEA Heat Pump Conference : Rotterdam, June 2017
Publisher: Phetradico Communication and Publishing
ISBN: 9789090304120
Official Date: 2 August 2016
Dates:
DateEvent
17 January 2017Completion
2 August 2016Accepted
31 May 2016Submitted
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access
Conference Paper Type: Paper
Title of Event: 12th IEA Heat Pump Conference 2017 (HPC 2017)
Type of Event: Conference
Location of Event: Rotterdam (The Netherlands)
Date(s) of Event: 15-18 May 2017
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