バッチ式デシカント空調システムの概要及びその加湿暖房性能住宅用デシカント空調システムの開発及び性能評価に関する研究（その1）

摘要

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 are mainly 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 analysis model 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.%1．はじめに本研究は戸建住宅を対象とし、床下空間を活用した新たなバッチ式デシカント空調システムを提案し、数値解析及び実験による加湿・暖房性能、除湿・冷房性能、換気性能などの室内環境調節性能及び省エネルギー性能を評価することを目的とする。