Optimal control and performance test of solar-assisted cooling system

Handle URI:
http://hdl.handle.net/10754/599089
Title:
Optimal control and performance test of solar-assisted cooling system
Authors:
Huang, B.J.; Yen, C.W.; Wu, J.H.; Liu, J.H.; Hsu, H.Y.; Petrenko, V.O.; Chang, J.M.; Lu, C.W.
Abstract:
The solar-assisted cooling system (SACH) was developed in the present study. The ejector cooling system (ECS) is driven by solar heat and connected in parallel with an inverter-type air conditioner (A/C). The cooling load can be supplied by the ECS when solar energy is available and the input power of the A/C can be reduced. In variable weather, the ECS will probably operate at off-design condition of ejector and the cooling capability of the ECS can be lost completely. In order to make the ejector operate at critical or non-critical double-choking condition to obtain a better performance, an electronic expansion valve was installed in the suction line of the ejector to regulate the opening of the expansion valve to control the evaporator temperature. This will make the SACH always produce cooling effect even at lower solar radiation periods while the ejector performs at off-design conditions. The energy saving of A/C is experimentally shown 50-70% due to the cooling performance of ECS. The long-term performance test results show that the daily energy saving is around 30-70% as compared to the energy consumption of A/C alone (without solar-driven ECS). The total energy saving of A/C is 52% over the entire test period. © 2010 Elsevier Ltd. All rights reserved.
Citation:
Huang BJ, Yen CW, Wu JH, Liu JH, Hsu HY, et al. (2010) Optimal control and performance test of solar-assisted cooling system. Applied Thermal Engineering 30: 2243–2252. Available: http://dx.doi.org/10.1016/j.applthermaleng.2010.06.004.
Publisher:
Elsevier BV
Journal:
Applied Thermal Engineering
KAUST Grant Number:
KUK-C1-014-12
Issue Date:
Oct-2010
DOI:
10.1016/j.applthermaleng.2010.06.004
Type:
Article
ISSN:
1359-4311
Sponsors:
This publication is based on the work supported by Award No. KUK-C1-014-12, made by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorHuang, B.J.en
dc.contributor.authorYen, C.W.en
dc.contributor.authorWu, J.H.en
dc.contributor.authorLiu, J.H.en
dc.contributor.authorHsu, H.Y.en
dc.contributor.authorPetrenko, V.O.en
dc.contributor.authorChang, J.M.en
dc.contributor.authorLu, C.W.en
dc.date.accessioned2016-02-25T13:52:40Zen
dc.date.available2016-02-25T13:52:40Zen
dc.date.issued2010-10en
dc.identifier.citationHuang BJ, Yen CW, Wu JH, Liu JH, Hsu HY, et al. (2010) Optimal control and performance test of solar-assisted cooling system. Applied Thermal Engineering 30: 2243–2252. Available: http://dx.doi.org/10.1016/j.applthermaleng.2010.06.004.en
dc.identifier.issn1359-4311en
dc.identifier.doi10.1016/j.applthermaleng.2010.06.004en
dc.identifier.urihttp://hdl.handle.net/10754/599089en
dc.description.abstractThe solar-assisted cooling system (SACH) was developed in the present study. The ejector cooling system (ECS) is driven by solar heat and connected in parallel with an inverter-type air conditioner (A/C). The cooling load can be supplied by the ECS when solar energy is available and the input power of the A/C can be reduced. In variable weather, the ECS will probably operate at off-design condition of ejector and the cooling capability of the ECS can be lost completely. In order to make the ejector operate at critical or non-critical double-choking condition to obtain a better performance, an electronic expansion valve was installed in the suction line of the ejector to regulate the opening of the expansion valve to control the evaporator temperature. This will make the SACH always produce cooling effect even at lower solar radiation periods while the ejector performs at off-design conditions. The energy saving of A/C is experimentally shown 50-70% due to the cooling performance of ECS. The long-term performance test results show that the daily energy saving is around 30-70% as compared to the energy consumption of A/C alone (without solar-driven ECS). The total energy saving of A/C is 52% over the entire test period. © 2010 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipThis publication is based on the work supported by Award No. KUK-C1-014-12, made by King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectEjector coolingen
dc.subjectEjector systemen
dc.subjectSolar coolingen
dc.subjectSolar energyen
dc.titleOptimal control and performance test of solar-assisted cooling systemen
dc.typeArticleen
dc.identifier.journalApplied Thermal Engineeringen
dc.contributor.institutionNational Taiwan University, Taipei, Taiwanen
dc.contributor.institutionNational Chin-Yi University of Technology Taiwan, Taichung, Taiwanen
kaust.grant.numberKUK-C1-014-12en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.