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Article: Thermal storage performance analysis on Chinese kangs
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TitleThermal storage performance analysis on Chinese kangs
 
AuthorsZhuang, Z1 2
Li, Y2
Chen, B1
 
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
 
CitationEnergy And Buildings, 2009, v. 41 n. 4, p. 452-459 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.enbuild.2008.11.006
 
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.
 
ISSN0378-7788
2013 Impact Factor: 2.465
2013 SCImago Journal Rankings: 1.978
 
DOIhttp://dx.doi.org/10.1016/j.enbuild.2008.11.006
 
ISI Accession Number IDWOS:000264704700011
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.

 
ReferencesReferences in Scopus
 
GrantsNonlinear coupling of thermal mass and natural ventilation in buildings
 
DC FieldValue
dc.contributor.authorZhuang, Z
 
dc.contributor.authorLi, Y
 
dc.contributor.authorChen, B
 
dc.date.accessioned2010-05-31T03:41:05Z
 
dc.date.available2010-05-31T03:41:05Z
 
dc.date.issued2009
 
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.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationEnergy And Buildings, 2009, v. 41 n. 4, p. 452-459 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.enbuild.2008.11.006
 
dc.identifier.doihttp://dx.doi.org/10.1016/j.enbuild.2008.11.006
 
dc.identifier.epage459
 
dc.identifier.hkuros161299
 
dc.identifier.isiWOS:000264704700011
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.

 
dc.identifier.issn0378-7788
2013 Impact Factor: 2.465
2013 SCImago Journal Rankings: 1.978
 
dc.identifier.issue4
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-61549115647
 
dc.identifier.spage452
 
dc.identifier.urihttp://hdl.handle.net/10722/58995
 
dc.identifier.volume41
 
dc.languageeng
 
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/enbuild
 
dc.publisher.placeSwitzerland
 
dc.relation.ispartofEnergy and Buildings
 
dc.relation.projectNonlinear coupling of thermal mass and natural ventilation in buildings
 
dc.relation.referencesReferences in Scopus
 
dc.subjectChinese kangs
 
dc.subjectElevated kang
 
dc.subjectEnergy-efficient heating system
 
dc.subjectRural energy
 
dc.subjectThermal storage
 
dc.titleThermal storage performance analysis on Chinese kangs
 
dc.typeArticle
 
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Author Affiliations
  1. Dalian University of Technology
  2. The University of Hong Kong