Numerical investigation of a cross flow air-to-water heat pipe-based heat exchanger used in waste heat recovery

Joao Ramos, Zyh Chong, Hussam Jouhara

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Abstract

This paper presents the application of CFD modelling to predict the thermal performance of a cross flow heat pipe based air to water heat exchanger. The investigated heat exchanger is equipped with six wickless water-charged heat pipes with a single pass flow pattern on the air side and two flow passes on the water side. For the purpose of CFD modelling, the heat pipes were considered as solid devices of a known thermal conductivity, which is estimated from comprehensive experimental investigation on these heat pipes under the whole testing range. The CFD results were validated using a full scale system and it was found that the modelling predictions are within 10% of the experimental results.
Original languageEnglish
Publication statusPublished - 2015
EventSustainable Thermal Energy Management Conference: SusTEM 2015 - Newcastle upon Tyne, United Kingdom
Duration: 7 Jul 20158 Jul 2015
http://research.ncl.ac.uk/sustem/sustem2015conference/

Conference

ConferenceSustainable Thermal Energy Management Conference
Country/TerritoryUnited Kingdom
CityNewcastle upon Tyne
Period7/07/158/07/15
Internet address

Keywords

  • heat pipe
  • heat exchanger
  • cfd modelling
  • heat recovery

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