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Experimental and numerical investigation of the cross-flow PCM heat exchanger for the energy saving of building HVAC.

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Title: Experimental and numerical investigation of the cross-flow PCM heat exchanger for the energy saving of building HVAC.
Authors: Promoppatum, Patcharapit1, Yao, Shi-Chune1 scyao@cmu.edu, Hultz, Thomas2, Agee, Dave2
Source: Energy & Buildings. Mar2017, Vol. 138, p468-478. 11p.
Subjects: Energy conservation in buildings, Heat exchangers, Building environmental engineering equipment, Computer simulation, Heat recovery
Abstract: The present study describes the design of a crossflow shell-and-tube heat exchanger with staggered tube array containing phase change material (PCM) to absorb the heat from the warm air stream ejected from building HVAC, and to release heat into the cold air stream entering building. A real scale prototype was constructed to validate the numerical model. The results showed consistent agreements between the modeling and experiment. Then, the numerical simulation was comprehensively used to study the effects of geometrical and operational parameters on the overall thermal performance, including the numbers of tube rows, operational time, and tube diameter. Furthermore, the study investigated the possible heat transfer enhancement using multiple melting temperatures in regions of tube array, and the use of dispersed highly conductive material in PCM. This PCM heat exchanger has potential of increasing the energy efficiency and saving overall energy cost. [ABSTRACT FROM AUTHOR]
Copyright of Energy & Buildings is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 121132034
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Experimental and numerical investigation of the cross-flow PCM heat exchanger for the energy saving of building HVAC.
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  Data: <searchLink fieldCode="AR" term="%22Promoppatum%2C+Patcharapit%22">Promoppatum, Patcharapit</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yao%2C+Shi-Chune%22">Yao, Shi-Chune</searchLink><relatesTo>1</relatesTo><i> scyao@cmu.edu</i><br /><searchLink fieldCode="AR" term="%22Hultz%2C+Thomas%22">Hultz, Thomas</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Agee%2C+Dave%22">Agee, Dave</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Energy+%26+Buildings%22">Energy & Buildings</searchLink>. Mar2017, Vol. 138, p468-478. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Energy+conservation+in+buildings%22">Energy conservation in buildings</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+exchangers%22">Heat exchangers</searchLink><br /><searchLink fieldCode="DE" term="%22Building+environmental+engineering+equipment%22">Building environmental engineering equipment</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+recovery%22">Heat recovery</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The present study describes the design of a crossflow shell-and-tube heat exchanger with staggered tube array containing phase change material (PCM) to absorb the heat from the warm air stream ejected from building HVAC, and to release heat into the cold air stream entering building. A real scale prototype was constructed to validate the numerical model. The results showed consistent agreements between the modeling and experiment. Then, the numerical simulation was comprehensively used to study the effects of geometrical and operational parameters on the overall thermal performance, including the numbers of tube rows, operational time, and tube diameter. Furthermore, the study investigated the possible heat transfer enhancement using multiple melting temperatures in regions of tube array, and the use of dispersed highly conductive material in PCM. This PCM heat exchanger has potential of increasing the energy efficiency and saving overall energy cost. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Energy & Buildings is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.enbuild.2016.12.043
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 468
    Subjects:
      – SubjectFull: Energy conservation in buildings
        Type: general
      – SubjectFull: Heat exchangers
        Type: general
      – SubjectFull: Building environmental engineering equipment
        Type: general
      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Heat recovery
        Type: general
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      – TitleFull: Experimental and numerical investigation of the cross-flow PCM heat exchanger for the energy saving of building HVAC.
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              Text: Mar2017
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              Y: 2017
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