Development of hybrid solar-assisted cooling/heating system

Handle URI:
http://hdl.handle.net/10754/597963
Title:
Development of hybrid solar-assisted cooling/heating system
Authors:
Huang, B.J.; Wu, J.H.; Hsu, H.Y.; Wang, J.H.
Abstract:
A solar-assisted ejector cooling/heating system (SACH) was developed in this study. The SACH combines a pump-less ejector cooling system (ECS) with an inverter-type heat pump (R22) and is able to provide a stable capacity for space cooling. The ECS is driven by solar heat and is used to cool the condenser of the R22 heat pump to increase its COP and reduce the energy consumption of the compressor by regulating the rotational speed of the compressor through a control system. In a complete SACH system test run at outdoor temperature 35 °C, indoor temperature 25 °C and compressor speed 20-80 Hz, and the ECS operating at generator temperature 90 °C and condensing temperature 37 °C, the corresponding condensing temperature of the heat pump in the SACH is 24.5-42 °C, cooling capacity 1.02-2.44 kW, input power 0.20-0.98 kW, and cooling COPc 5.11-2.50. This indicates that the use of ECS in SACH can effectively reduce the condensing temperature of the heat pump by 12.6-7.3 °C and reduce the power consumption by 81.2-34.5%. The SACH can also supply heat from the heat pump. At ambient temperature from 5 °C to 35 °C, the heating COPh is in the range 2.0-3.3. © 2010 Elsevier Ltd. All rights reserved.
Citation:
Huang BJ, Wu JH, Hsu HY, Wang JH (2010) Development of hybrid solar-assisted cooling/heating system. Energy Conversion and Management 51: 1643–1650. Available: http://dx.doi.org/10.1016/j.enconman.2009.07.026.
Publisher:
Elsevier BV
Journal:
Energy Conversion and Management
KAUST Grant Number:
KUK-C1-014-12
Issue Date:
Aug-2010
DOI:
10.1016/j.enconman.2009.07.026
Type:
Article
ISSN:
0196-8904
Sponsors:
This publication is based on the work jointly supported by Award No. KUK-C1-014-12, made by King Abdullah University of Science and Technology (KAUST) and the Project No. 97-D0137-1 made by Energy Bureau, Ministry of Economic Affairs, Taiwan.
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorHuang, B.J.en
dc.contributor.authorWu, J.H.en
dc.contributor.authorHsu, H.Y.en
dc.contributor.authorWang, J.H.en
dc.date.accessioned2016-02-25T12:59:37Zen
dc.date.available2016-02-25T12:59:37Zen
dc.date.issued2010-08en
dc.identifier.citationHuang BJ, Wu JH, Hsu HY, Wang JH (2010) Development of hybrid solar-assisted cooling/heating system. Energy Conversion and Management 51: 1643–1650. Available: http://dx.doi.org/10.1016/j.enconman.2009.07.026.en
dc.identifier.issn0196-8904en
dc.identifier.doi10.1016/j.enconman.2009.07.026en
dc.identifier.urihttp://hdl.handle.net/10754/597963en
dc.description.abstractA solar-assisted ejector cooling/heating system (SACH) was developed in this study. The SACH combines a pump-less ejector cooling system (ECS) with an inverter-type heat pump (R22) and is able to provide a stable capacity for space cooling. The ECS is driven by solar heat and is used to cool the condenser of the R22 heat pump to increase its COP and reduce the energy consumption of the compressor by regulating the rotational speed of the compressor through a control system. In a complete SACH system test run at outdoor temperature 35 °C, indoor temperature 25 °C and compressor speed 20-80 Hz, and the ECS operating at generator temperature 90 °C and condensing temperature 37 °C, the corresponding condensing temperature of the heat pump in the SACH is 24.5-42 °C, cooling capacity 1.02-2.44 kW, input power 0.20-0.98 kW, and cooling COPc 5.11-2.50. This indicates that the use of ECS in SACH can effectively reduce the condensing temperature of the heat pump by 12.6-7.3 °C and reduce the power consumption by 81.2-34.5%. The SACH can also supply heat from the heat pump. At ambient temperature from 5 °C to 35 °C, the heating COPh is in the range 2.0-3.3. © 2010 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipThis publication is based on the work jointly supported by Award No. KUK-C1-014-12, made by King Abdullah University of Science and Technology (KAUST) and the Project No. 97-D0137-1 made by Energy Bureau, Ministry of Economic Affairs, Taiwan.en
dc.publisherElsevier BVen
dc.subjectEjectoren
dc.subjectEjector cooling systemen
dc.subjectHeat pumpen
dc.subjectSolar coolingen
dc.subjectSolar ejector coolingen
dc.subjectSolar energyen
dc.titleDevelopment of hybrid solar-assisted cooling/heating systemen
dc.typeArticleen
dc.identifier.journalEnergy Conversion and Managementen
dc.contributor.institutionNational Taiwan University, Taipei, Taiwanen
kaust.grant.numberKUK-C1-014-12en
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