Exergetic performance of the desiccant heating, ventilating, and air-conditioning (DHVAC) system

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

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Citation (Scopus)


The developed desiccant heating, ventilating and air-conditioning (DHVAC) 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 was 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 (AHC), air fans and desiccant wheel (DW) contributed to large percentage of exergy destruction. Hence, the mentioned components should be given attention for further improvement in the system performances.

Original languageEnglish
Title of host publicationDesiccant Heating, Ventilating, and Air-Conditioning Systems
PublisherSpringer Singapore
Number of pages23
ISBN (Electronic)9789811030475
ISBN (Print)9789811030468
Publication statusPublished - 2016 Jan 1


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


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