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 language | English |
|---|---|
| Pages (from-to) | 835-844 |
| Number of pages | 10 |
| Journal | Journal of Environmental Engineering |
| Volume | 75 |
| Issue number | 655 |
| DOIs | |
| Publication status | Published - Sep 1 2010 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Environmental Engineering
Cite this
Outline of batch type desiccant airconditioning system and humidificationheating performance study on development of residential desiccant airconditioning system and its performance evaluation (part 1). / Cho, Wanghee; Kato, Shinsuke.
In: Journal of Environmental Engineering, Vol. 75, No. 655, 01.09.2010, p. 835-844.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Outline of batch type desiccant airconditioning system and humidificationheating performance study on development of residential desiccant airconditioning system and its performance evaluation (part 1)
AU - Cho, Wanghee
AU - Kato, Shinsuke
PY - 2010/9/1
Y1 - 2010/9/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=80054099153&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80054099153&partnerID=8YFLogxK
U2 - 10.3130/aije.75.835
DO - 10.3130/aije.75.835
M3 - Article
AN - SCOPUS:80054099153
VL - 75
SP - 835
EP - 844
JO - Journal of Environmental Engineering (Japan)
JF - Journal of Environmental Engineering (Japan)
SN - 1348-0685
IS - 655
ER -