Analytical solutions for evaluating the thermal performances of wet air cooling coils under both unit and non-unit Lewis Factors

Liang Xia, Ming Yin Jonathan Chan, Shiming Deng, X. G. Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)

Abstract

Analytical solutions for evaluating the thermal performances of both chilled water wet cooling coils and direct expansion (DX) wet cooling coils, respectively, under both unit and non-unit Lewis Factors are developed and reported in this paper. The analytical solution was validated by comparing its predictions with those from numerically solving the fundamental governing equations of heat and mass transfer taking place in a wet cooling coil. With the analytical solutions, the distributions of air temperature and humidity ratio along air flow direction in a wet cooling coil can be predicted, and the differences in the thermal performances of the cooling coils under both unit and non-unit Lewis Factors can be identified. The analytical solutions, on one hand, can be a low-cost replacement to numerically solving the fundamental heat and mass transfer governing equations, and on the other hand, is able to deal with evaluating thermal performance for wet air cooling coils operated under both unit and non-unit Lewis Factors.
Original languageEnglish
Pages (from-to)2079-2086
Number of pages8
JournalEnergy Conversion and Management
Volume51
Issue number10
DOIs
Publication statusPublished - 1 Oct 2010

Keywords

  • Analytical solutions
  • Heat and mass transfer
  • Lewis Factor
  • Wet cooling coils

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this