Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system

Koichi Kawamoto, Wanghee Cho, Hitoshi Kohno, Shizuo Iwamoto, Makoto Koganei, Ryozo Ooka, Shinsuke Kato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to realize energy efficient features for a dedicated desiccant air-conditioning system throughout the season, and propose a new high-efficiency application of this system. Many advanced air-conditioning systems are intended to reduce energy and/or space only for sensitive heat conditioning. During the dehumidification season, the results show that a latent heat conditioning system using a desiccant air-conditioner achieves over 20% higher energy efficiency than conventional systems. A new humidification system that combines a desiccant outdoor air-conditioning unit and heat-pump is proposed for the winter season. The experimental results show that the humidification performance satisfies the minimum demand for an outdoor air conditioner in many areas of Japan, but the energy efficiency is slightly inferior to that of traditional boiler systems. Some improvements in the structure and operation of this system are suggested to improve the higher energy efficiency.

Original languageEnglish
Title of host publication24th IIR International Congress of Refrigeration, ICR 2015
PublisherInternational Institute of Refrigeration
Pages3025-3032
Number of pages8
ISBN (Electronic)9782362150128
DOIs
Publication statusPublished - Jan 1 2015
Externally publishedYes
Event24th IIR International Congress of Refrigeration, ICR 2015 - Yokohama, Japan
Duration: Aug 16 2015Aug 22 2015

Other

Other24th IIR International Congress of Refrigeration, ICR 2015
CountryJapan
CityYokohama
Period8/16/158/22/15

Fingerprint

desiccants
air conditioning
Air conditioning
Energy efficiency
conditioning
Latent heat
Air
dehumidification
Boilers
energy
heat pumps
Pumps
air
latent heat
boilers
winter
Japan
heat
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

Cite this

Kawamoto, K., Cho, W., Kohno, H., Iwamoto, S., Koganei, M., Ooka, R., & Kato, S. (2015). Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system. In 24th IIR International Congress of Refrigeration, ICR 2015 (pp. 3025-3032). International Institute of Refrigeration. https://doi.org/10.18462/iir.icr.2015.0128

Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system. / Kawamoto, Koichi; Cho, Wanghee; Kohno, Hitoshi; Iwamoto, Shizuo; Koganei, Makoto; Ooka, Ryozo; Kato, Shinsuke.

24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, 2015. p. 3025-3032.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kawamoto, K, Cho, W, Kohno, H, Iwamoto, S, Koganei, M, Ooka, R & Kato, S 2015, Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system. in 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, pp. 3025-3032, 24th IIR International Congress of Refrigeration, ICR 2015, Yokohama, Japan, 8/16/15. https://doi.org/10.18462/iir.icr.2015.0128
Kawamoto K, Cho W, Kohno H, Iwamoto S, Koganei M, Ooka R et al. Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system. In 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration. 2015. p. 3025-3032 https://doi.org/10.18462/iir.icr.2015.0128
Kawamoto, Koichi ; Cho, Wanghee ; Kohno, Hitoshi ; Iwamoto, Shizuo ; Koganei, Makoto ; Ooka, Ryozo ; Kato, Shinsuke. / Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system. 24th IIR International Congress of Refrigeration, ICR 2015. International Institute of Refrigeration, 2015. pp. 3025-3032
@inproceedings{4a941e749ae746d980d6e8710e52816c,
title = "Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system",
abstract = "The purpose of this study is to realize energy efficient features for a dedicated desiccant air-conditioning system throughout the season, and propose a new high-efficiency application of this system. Many advanced air-conditioning systems are intended to reduce energy and/or space only for sensitive heat conditioning. During the dehumidification season, the results show that a latent heat conditioning system using a desiccant air-conditioner achieves over 20{\%} higher energy efficiency than conventional systems. A new humidification system that combines a desiccant outdoor air-conditioning unit and heat-pump is proposed for the winter season. The experimental results show that the humidification performance satisfies the minimum demand for an outdoor air conditioner in many areas of Japan, but the energy efficiency is slightly inferior to that of traditional boiler systems. Some improvements in the structure and operation of this system are suggested to improve the higher energy efficiency.",
author = "Koichi Kawamoto and Wanghee Cho and Hitoshi Kohno and Shizuo Iwamoto and Makoto Koganei and Ryozo Ooka and Shinsuke Kato",
year = "2015",
month = "1",
day = "1",
doi = "10.18462/iir.icr.2015.0128",
language = "English",
pages = "3025--3032",
booktitle = "24th IIR International Congress of Refrigeration, ICR 2015",
publisher = "International Institute of Refrigeration",

}

TY - GEN

T1 - Study on energy-efficiency of desiccant outdoor air-conditioning unit for a dedicated air-conditioning system

AU - Kawamoto, Koichi

AU - Cho, Wanghee

AU - Kohno, Hitoshi

AU - Iwamoto, Shizuo

AU - Koganei, Makoto

AU - Ooka, Ryozo

AU - Kato, Shinsuke

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The purpose of this study is to realize energy efficient features for a dedicated desiccant air-conditioning system throughout the season, and propose a new high-efficiency application of this system. Many advanced air-conditioning systems are intended to reduce energy and/or space only for sensitive heat conditioning. During the dehumidification season, the results show that a latent heat conditioning system using a desiccant air-conditioner achieves over 20% higher energy efficiency than conventional systems. A new humidification system that combines a desiccant outdoor air-conditioning unit and heat-pump is proposed for the winter season. The experimental results show that the humidification performance satisfies the minimum demand for an outdoor air conditioner in many areas of Japan, but the energy efficiency is slightly inferior to that of traditional boiler systems. Some improvements in the structure and operation of this system are suggested to improve the higher energy efficiency.

AB - The purpose of this study is to realize energy efficient features for a dedicated desiccant air-conditioning system throughout the season, and propose a new high-efficiency application of this system. Many advanced air-conditioning systems are intended to reduce energy and/or space only for sensitive heat conditioning. During the dehumidification season, the results show that a latent heat conditioning system using a desiccant air-conditioner achieves over 20% higher energy efficiency than conventional systems. A new humidification system that combines a desiccant outdoor air-conditioning unit and heat-pump is proposed for the winter season. The experimental results show that the humidification performance satisfies the minimum demand for an outdoor air conditioner in many areas of Japan, but the energy efficiency is slightly inferior to that of traditional boiler systems. Some improvements in the structure and operation of this system are suggested to improve the higher energy efficiency.

UR - http://www.scopus.com/inward/record.url?scp=85016806418&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85016806418&partnerID=8YFLogxK

U2 - 10.18462/iir.icr.2015.0128

DO - 10.18462/iir.icr.2015.0128

M3 - Conference contribution

SP - 3025

EP - 3032

BT - 24th IIR International Congress of Refrigeration, ICR 2015

PB - International Institute of Refrigeration

ER -