Multi-bed adsorption heat pump cycles and their optimal operation

Atsushi Akisawa, Takahiko Miyazaki

研究成果: 著書/レポートタイプへの貢献

7 引用 (Scopus)

抄録

The chapter consists of two parts. The first part describes advanced adsorption heat pump cycles. The second part presents cycle simulations with optimization to maximize cooling effect. Multi-stage adsorption heat pump cycles are expected to utilize low temperature heat of 50-70 degC. Two-stage cycle and three-stage cycle have been investigated experimentally to clarify appropriate range of heat source temperature. Furthermore, new single stage cycles are proposed based on an idea of reheat scheme, where single stage cycle operates as quasi-two stage cycle. It can expand the temperature range for lower side. The other interesting idea is single stage cycle with three beds in contrast with two beds of conventional single stage cycle. The third bed runs twice as quickly as the other beds to adsorb more vapor from the evaporator. The process of mass recovery from desorption side to adsorption side has an important role in the cycles. Configuration, operation and performance of the cycles are described in the first part. In the second part, adsorption cycles have some control variables for the operation such as cycle time allocation for adsorption, desorption, precooling, preheating processes. It means that cycle has freedom to maximize the performance under given external conditions. It was, however, difficult to attain the optimum due to large freedom of the system. The authors succeeded to employ a nonlinear optimization technique named Particle Swarm Optimization to find optimal time allocation. The method, optimal settings of the parameters and optimal performance are discussed.

元の言語英語
ホスト出版物のタイトルAdvances in Adsorption Technology
出版者Nova Science Publishers, Inc.
ページ241-280
ページ数40
ISBN(電子版)9781617617591
ISBN(印刷物)9781608768332
出版物ステータス出版済み - 1 1 2010
外部発表Yes

Fingerprint

Pumps
Adsorption
Desorption
Preheating
Evaporators
Temperature
Particle swarm optimization (PSO)
Vapors
Hot Temperature
Cooling
Recovery

All Science Journal Classification (ASJC) codes

  • Energy(all)

これを引用

Akisawa, A., & Miyazaki, T. (2010). Multi-bed adsorption heat pump cycles and their optimal operation. : Advances in Adsorption Technology (pp. 241-280). Nova Science Publishers, Inc..

Multi-bed adsorption heat pump cycles and their optimal operation. / Akisawa, Atsushi; Miyazaki, Takahiko.

Advances in Adsorption Technology. Nova Science Publishers, Inc., 2010. p. 241-280.

研究成果: 著書/レポートタイプへの貢献

Akisawa, A & Miyazaki, T 2010, Multi-bed adsorption heat pump cycles and their optimal operation. : Advances in Adsorption Technology. Nova Science Publishers, Inc., pp. 241-280.
Akisawa A, Miyazaki T. Multi-bed adsorption heat pump cycles and their optimal operation. : Advances in Adsorption Technology. Nova Science Publishers, Inc. 2010. p. 241-280
Akisawa, Atsushi ; Miyazaki, Takahiko. / Multi-bed adsorption heat pump cycles and their optimal operation. Advances in Adsorption Technology. Nova Science Publishers, Inc., 2010. pp. 241-280
@inbook{4cbc145e67e343d1b74d293e4a11c28e,
title = "Multi-bed adsorption heat pump cycles and their optimal operation",
abstract = "The chapter consists of two parts. The first part describes advanced adsorption heat pump cycles. The second part presents cycle simulations with optimization to maximize cooling effect. Multi-stage adsorption heat pump cycles are expected to utilize low temperature heat of 50-70 degC. Two-stage cycle and three-stage cycle have been investigated experimentally to clarify appropriate range of heat source temperature. Furthermore, new single stage cycles are proposed based on an idea of reheat scheme, where single stage cycle operates as quasi-two stage cycle. It can expand the temperature range for lower side. The other interesting idea is single stage cycle with three beds in contrast with two beds of conventional single stage cycle. The third bed runs twice as quickly as the other beds to adsorb more vapor from the evaporator. The process of mass recovery from desorption side to adsorption side has an important role in the cycles. Configuration, operation and performance of the cycles are described in the first part. In the second part, adsorption cycles have some control variables for the operation such as cycle time allocation for adsorption, desorption, precooling, preheating processes. It means that cycle has freedom to maximize the performance under given external conditions. It was, however, difficult to attain the optimum due to large freedom of the system. The authors succeeded to employ a nonlinear optimization technique named Particle Swarm Optimization to find optimal time allocation. The method, optimal settings of the parameters and optimal performance are discussed.",
author = "Atsushi Akisawa and Takahiko Miyazaki",
year = "2010",
month = "1",
day = "1",
language = "English",
isbn = "9781608768332",
pages = "241--280",
booktitle = "Advances in Adsorption Technology",
publisher = "Nova Science Publishers, Inc.",

}

TY - CHAP

T1 - Multi-bed adsorption heat pump cycles and their optimal operation

AU - Akisawa, Atsushi

AU - Miyazaki, Takahiko

PY - 2010/1/1

Y1 - 2010/1/1

N2 - The chapter consists of two parts. The first part describes advanced adsorption heat pump cycles. The second part presents cycle simulations with optimization to maximize cooling effect. Multi-stage adsorption heat pump cycles are expected to utilize low temperature heat of 50-70 degC. Two-stage cycle and three-stage cycle have been investigated experimentally to clarify appropriate range of heat source temperature. Furthermore, new single stage cycles are proposed based on an idea of reheat scheme, where single stage cycle operates as quasi-two stage cycle. It can expand the temperature range for lower side. The other interesting idea is single stage cycle with three beds in contrast with two beds of conventional single stage cycle. The third bed runs twice as quickly as the other beds to adsorb more vapor from the evaporator. The process of mass recovery from desorption side to adsorption side has an important role in the cycles. Configuration, operation and performance of the cycles are described in the first part. In the second part, adsorption cycles have some control variables for the operation such as cycle time allocation for adsorption, desorption, precooling, preheating processes. It means that cycle has freedom to maximize the performance under given external conditions. It was, however, difficult to attain the optimum due to large freedom of the system. The authors succeeded to employ a nonlinear optimization technique named Particle Swarm Optimization to find optimal time allocation. The method, optimal settings of the parameters and optimal performance are discussed.

AB - The chapter consists of two parts. The first part describes advanced adsorption heat pump cycles. The second part presents cycle simulations with optimization to maximize cooling effect. Multi-stage adsorption heat pump cycles are expected to utilize low temperature heat of 50-70 degC. Two-stage cycle and three-stage cycle have been investigated experimentally to clarify appropriate range of heat source temperature. Furthermore, new single stage cycles are proposed based on an idea of reheat scheme, where single stage cycle operates as quasi-two stage cycle. It can expand the temperature range for lower side. The other interesting idea is single stage cycle with three beds in contrast with two beds of conventional single stage cycle. The third bed runs twice as quickly as the other beds to adsorb more vapor from the evaporator. The process of mass recovery from desorption side to adsorption side has an important role in the cycles. Configuration, operation and performance of the cycles are described in the first part. In the second part, adsorption cycles have some control variables for the operation such as cycle time allocation for adsorption, desorption, precooling, preheating processes. It means that cycle has freedom to maximize the performance under given external conditions. It was, however, difficult to attain the optimum due to large freedom of the system. The authors succeeded to employ a nonlinear optimization technique named Particle Swarm Optimization to find optimal time allocation. The method, optimal settings of the parameters and optimal performance are discussed.

UR - http://www.scopus.com/inward/record.url?scp=84991742120&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84991742120&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:84991742120

SN - 9781608768332

SP - 241

EP - 280

BT - Advances in Adsorption Technology

PB - Nova Science Publishers, Inc.

ER -