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Article: Thermal storage performance analysis on Chinese kangs

TitleThermal storage performance analysis on Chinese kangs
Authors
KeywordsChinese kangs
Elevated kang
Energy-efficient heating system
Rural energy
Thermal storage
Issue Date2009
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/enbuild
Citation
Energy And Buildings, 2009, v. 41 n. 4, p. 452-459 How to Cite?
AbstractChinese kangs are widely used as a rural home heating system in Northern China by 175 million people. The main features of Chinese kangs include the effective use of thermal mass in kang plate. In this paper, a thermal and airflow model for an elevated kang is developed with a simply consideration of the heat transfer in building envelope. Approximate analytical formulas are derived to identify the critical parameters that affect the levels and fluctuations of kang plate temperature and indoor air temperature. It can be observed that the increase of the plate time constant and the heat source frequency with continuous firings and equally distributing the firings and adding the number of firing with intermittent firings can effectively decrease the fluctuation of kang plate temperature and indoor air temperature. The results of model analytical solutions can serve engineers for design proposals or check analysis to determine the required thermal capacity of kang plate at the early design stage. An example of heat source-based design process is described to determine the thickness of a kang plate and firing distribution. © 2008 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/58995
ISSN
2015 Impact Factor: 2.973
2015 SCImago Journal Rankings: 2.073
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region, ChinaHKU 7154/05E
NSFC Young Researcher Award50729803
Funding Information:

This work was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. HKU 7154/05E) and NSFC Young Researcher Award (Project No. 50729803) on investigating energy consumption and indoor air quality in rural homes in Northern China. The work is a part of the International Energy Agency Annex 44 project on Integrating Environmentally Responsive Elements in Buildings. Special thanks go to Dr. Pengcheng Xu for discussion of the mathematical solutions and Ms. Abigail Watrous of University of Colorado at Boulder, for editorial assistance.

References
Grants

 

DC FieldValueLanguage
dc.contributor.authorZhuang, Zen_HK
dc.contributor.authorLi, Yen_HK
dc.contributor.authorChen, Ben_HK
dc.date.accessioned2010-05-31T03:41:05Z-
dc.date.available2010-05-31T03:41:05Z-
dc.date.issued2009en_HK
dc.identifier.citationEnergy And Buildings, 2009, v. 41 n. 4, p. 452-459en_HK
dc.identifier.issn0378-7788en_HK
dc.identifier.urihttp://hdl.handle.net/10722/58995-
dc.description.abstractChinese kangs are widely used as a rural home heating system in Northern China by 175 million people. The main features of Chinese kangs include the effective use of thermal mass in kang plate. In this paper, a thermal and airflow model for an elevated kang is developed with a simply consideration of the heat transfer in building envelope. Approximate analytical formulas are derived to identify the critical parameters that affect the levels and fluctuations of kang plate temperature and indoor air temperature. It can be observed that the increase of the plate time constant and the heat source frequency with continuous firings and equally distributing the firings and adding the number of firing with intermittent firings can effectively decrease the fluctuation of kang plate temperature and indoor air temperature. The results of model analytical solutions can serve engineers for design proposals or check analysis to determine the required thermal capacity of kang plate at the early design stage. An example of heat source-based design process is described to determine the thickness of a kang plate and firing distribution. © 2008 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/enbuilden_HK
dc.relation.ispartofEnergy and Buildingsen_HK
dc.subjectChinese kangsen_HK
dc.subjectElevated kangen_HK
dc.subjectEnergy-efficient heating systemen_HK
dc.subjectRural energyen_HK
dc.subjectThermal storageen_HK
dc.titleThermal storage performance analysis on Chinese kangsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0378-7788&volume=41&issue=4&spage=452&epage=459&date=2009&atitle=Thermal+storage+performance+analysis+on+Chinese+kangsen_HK
dc.identifier.emailLi, Y:liyg@hkucc.hku.hken_HK
dc.identifier.authorityLi, Y=rp00151en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.enbuild.2008.11.006en_HK
dc.identifier.scopuseid_2-s2.0-61549115647en_HK
dc.identifier.hkuros161299en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-61549115647&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume41en_HK
dc.identifier.issue4en_HK
dc.identifier.spage452en_HK
dc.identifier.epage459en_HK
dc.identifier.isiWOS:000264704700011-
dc.publisher.placeSwitzerlanden_HK
dc.relation.projectNonlinear coupling of thermal mass and natural ventilation in buildings-
dc.identifier.scopusauthoridZhuang, Z=16308549900en_HK
dc.identifier.scopusauthoridLi, Y=7502094052en_HK
dc.identifier.scopusauthoridChen, B=14015114300en_HK

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