Outline of batch type desiccant airconditioning system and humidificationheating performance study on development of residential desiccant airconditioning system and its performance evaluation (part 1)

Wanghee Cho, Shinsuke Kato

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In order to improve the indoor air quality (IAQ) problem caused by microbes such as mold and mites, and the decrepitude of buildings, desiccant air-conditioning systems have been adopted in buildings. However, conventional desiccant air-conditioning systems aremainly adopted for large-scale buildings, such as offices and hotels. They have rotors for desiccant and sensible heat exchange and therefore require a rather large machine room for air-conditioning. However, detached houses rarely have enough spaces for air-conditioning systems. In addition, little research in passive methods utilizing a desiccant or natural ventilation has been reported. Sometimes passive methods are affected by outdoor conditions and are not feasible for stable correspondence to indoor loads. In this paper, a batch-type desiccant air-conditioning system placed in the floor cavity was proposed which is able to operate perennially in both cooling-dehumidification and heating-humidification modes with ventilation. In order to estimate the heating-humidification performance of the proposed system, a small-scale model experiment was conducted and a numerical analysismodel was developed. By using the developed numerical analysis model, a sensitivity analysis was conducted with performance-parameters such as air flow rate, quantity of desiccant, mass flow rate of hot and cold water, temperature of hot and cold water and transposed interval.

Original languageEnglish
Pages (from-to)835-844
Number of pages10
JournalJournal of Environmental Engineering (Japan)
Volume75
Issue number655
DOIs
Publication statusPublished - Sep 2010

All Science Journal Classification (ASJC) codes

  • Environmental Engineering

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