Lynchos, George and Tamainot-Telto, Zacharie (2018) Prototype of hybrid refrigeration system using refrigerant R723. Applied Thermal Engineering, 134 . pp. 95-106. doi:10.1016/j.applthermaleng.2017.12.103 ISSN 1359-4311.

Preview	PDF WRAP-prototype-hybrid-refrigeration-system-Lychnos-2018.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (3348Kb) | Preview
	PDF WRAP-prototype-hybrid-refrigeration-system-refrigerant-R723-Tamainot-Telto-2017.pdf - Accepted Version Embargoed item. Restricted access to Repository staff only - Requires a PDF viewer. Download (1450Kb)

Request Changes to record.

Abstract

A proof of concept 10 kW cooling capacity hybrid refrigeration machine, designed and built at University of Warwick, is described in this paper. The hybrid system uses ammonia mixture R723 (40% Dimethyl ether, 60% Ammonia) which is compatible with conventional refrigeration copper alloy (Cu90Ni10) and environmentally friendly. It combines sorption (thermal) and conventional vapour compression (electrical) technology in two separate refrigerant loops. Shell and tubes adsorption generators with activated carbon – R723 pair are used as thermal compressor while a semi hermetic reciprocating compressor is used in the conventional vapour compression loop. The hybrid machine is designed as water chiller with an evaporation temperature of 5 oC and condensing temperature of 40oC. The preliminary experimental tests are mainly designed to check the system operational functionality. Those preliminary results show a maximum cooling production of 6 kW with 2/3 from mechanical compression and 1/3 from thermal compression (adsorption cycle). Further additional work is yet to be carried in order to establish full and detailed performance of prototype under development.

Item Type:	Journal Article
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH):	Refrigeration and refrigerating machinery, Refrigerators -- Design and construction
Journal or Publication Title:	Applied Thermal Engineering
Publisher:	Pergamon
ISSN:	1359-4311
Official Date:	1 April 2018
Dates:	Date Event 1 April 2018 Published 31 January 2018 Available 26 December 2017 Accepted 31 December 2017 Modified 9 June 2016 Submitted
Volume:	134
Page Range:	pp. 95-106
DOI:	10.1016/j.applthermaleng.2017.12.103
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access (Creative Commons)
Date of first compliant deposit:	2 February 2018
Date of first compliant Open Access:	20 March 2018
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID EP/J000876/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 UNSPECIFIED Chemviron Carbons Ltd (Firm) UNSPECIFIED

Request changes or add full text files to a record

Repository staff actions (login required)

View Item

Downloads