Effect of regeneration temperatures in the exergetic performances of the developed desiccant-evaporative air-conditioning system

Napoleon Enteria, Hiroshi Yoshino, Rie Takaki, Akashi Mochida, Akira Satake, Ryuichiro Yoshie

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

The developed desiccant-evaporative air-conditioning system was evaluated using the exergetic method under controlled environmental conditions to determine the performances of the whole system and its components. Percentage contributions of exergy destruction of system components at different regeneration temperatures and reference temperatures were determined. Exergy destruction coefficient of different components at different regeneration and reference temperatures were presented. It was shown that exergetic performances varied with respect to the regeneration and reference temperatures. The exergetic performances based on thermal, electric, total exergy input, first definition and second definition efficiencies were shown. Based on the results, reference and regeneration temperatures affected the determination of the system performances and its components. It was shown that air-heating coil, air fans and desiccant wheel contributed to large percentage of exergy destruction. Hence, the mentioned components should be given attention for further improvement of the system performances.

Original languageEnglish
Pages (from-to)2323-2342
Number of pages20
JournalInternational Journal of Refrigeration
Volume36
Issue number8
DOIs
Publication statusPublished - 2013 Dec 1

Keywords

  • Air handling system
  • Desiccant dehumidification
  • Evaporative cooling
  • Exergy analysis

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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