Waste heat driven dual-mode, multi-stage, multi-bed regenerative adsorption system

B. B. Saha, S. Koyama, T. Kashiwagi, A. Akisawa, K. C. Ng, H. T. Chua

Research output: Contribution to journalArticle

175 Citations (Scopus)

Abstract

Over the past few decades there have been considerable efforts to use adsorption (solid/vapor) for cooling and heat pump applications, but intensified efforts were initiated only since the imposition of international restrictions on the production and utilization of CFCs and HCFCs. In this paper, a dual-mode silica gel-water adsorption chiller design is outlined along with the performance evaluation of the innovative chiller. This adsorption chiller utilizes effectively low-temperature solar or waste heat sources of temperature between 40 and 95 °C. Two operation modes are possible for the advanced chiller. The first operation mode will be to work as a highly efficient conventional chiller where the driving source temperature is between 60 and 95 °C. The second operation mode will be to work as an advanced three-stage adsorption chiller where the available driving source temperature is very low (between 40 and 60 °C). With this very low driving source temperature in combination with a coolant at 30 °C, no other cycle except an advanced adsorption cycle with staged regeneration will be operational. The drawback of this operational mode is its poor efficiency in terms of cooling capacity and COP. Simulation results show that the optimum COP values are obtained at driving source temperatures between 50 and 55 °C in three-stage mode, and between 80 and 85 °C in single-stage, multi-bed mode.

Original languageEnglish
Pages (from-to)749-757
Number of pages9
JournalInternational Journal of Refrigeration
Volume26
Issue number7
DOIs
Publication statusPublished - Nov 1 2003

Fingerprint

Waste heat
Adsorption
Temperature
Cooling
Chlorofluorocarbons
Silica gel
Coolants
Vapors
Pumps
Water

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

Cite this

Waste heat driven dual-mode, multi-stage, multi-bed regenerative adsorption system. / Saha, B. B.; Koyama, S.; Kashiwagi, T.; Akisawa, A.; Ng, K. C.; Chua, H. T.

In: International Journal of Refrigeration, Vol. 26, No. 7, 01.11.2003, p. 749-757.

Research output: Contribution to journalArticle

Saha, B. B. ; Koyama, S. ; Kashiwagi, T. ; Akisawa, A. ; Ng, K. C. ; Chua, H. T. / Waste heat driven dual-mode, multi-stage, multi-bed regenerative adsorption system. In: International Journal of Refrigeration. 2003 ; Vol. 26, No. 7. pp. 749-757.
@article{60b5811159894929bf98421c18809896,
title = "Waste heat driven dual-mode, multi-stage, multi-bed regenerative adsorption system",
abstract = "Over the past few decades there have been considerable efforts to use adsorption (solid/vapor) for cooling and heat pump applications, but intensified efforts were initiated only since the imposition of international restrictions on the production and utilization of CFCs and HCFCs. In this paper, a dual-mode silica gel-water adsorption chiller design is outlined along with the performance evaluation of the innovative chiller. This adsorption chiller utilizes effectively low-temperature solar or waste heat sources of temperature between 40 and 95 °C. Two operation modes are possible for the advanced chiller. The first operation mode will be to work as a highly efficient conventional chiller where the driving source temperature is between 60 and 95 °C. The second operation mode will be to work as an advanced three-stage adsorption chiller where the available driving source temperature is very low (between 40 and 60 °C). With this very low driving source temperature in combination with a coolant at 30 °C, no other cycle except an advanced adsorption cycle with staged regeneration will be operational. The drawback of this operational mode is its poor efficiency in terms of cooling capacity and COP. Simulation results show that the optimum COP values are obtained at driving source temperatures between 50 and 55 °C in three-stage mode, and between 80 and 85 °C in single-stage, multi-bed mode.",
author = "Saha, {B. B.} and S. Koyama and T. Kashiwagi and A. Akisawa and Ng, {K. C.} and Chua, {H. T.}",
year = "2003",
month = "11",
day = "1",
doi = "10.1016/S0140-7007(03)00074-4",
language = "English",
volume = "26",
pages = "749--757",
journal = "International Journal of Refrigeration",
issn = "0140-7007",
publisher = "Elsevier Limited",
number = "7",

}

TY - JOUR

T1 - Waste heat driven dual-mode, multi-stage, multi-bed regenerative adsorption system

AU - Saha, B. B.

AU - Koyama, S.

AU - Kashiwagi, T.

AU - Akisawa, A.

AU - Ng, K. C.

AU - Chua, H. T.

PY - 2003/11/1

Y1 - 2003/11/1

N2 - Over the past few decades there have been considerable efforts to use adsorption (solid/vapor) for cooling and heat pump applications, but intensified efforts were initiated only since the imposition of international restrictions on the production and utilization of CFCs and HCFCs. In this paper, a dual-mode silica gel-water adsorption chiller design is outlined along with the performance evaluation of the innovative chiller. This adsorption chiller utilizes effectively low-temperature solar or waste heat sources of temperature between 40 and 95 °C. Two operation modes are possible for the advanced chiller. The first operation mode will be to work as a highly efficient conventional chiller where the driving source temperature is between 60 and 95 °C. The second operation mode will be to work as an advanced three-stage adsorption chiller where the available driving source temperature is very low (between 40 and 60 °C). With this very low driving source temperature in combination with a coolant at 30 °C, no other cycle except an advanced adsorption cycle with staged regeneration will be operational. The drawback of this operational mode is its poor efficiency in terms of cooling capacity and COP. Simulation results show that the optimum COP values are obtained at driving source temperatures between 50 and 55 °C in three-stage mode, and between 80 and 85 °C in single-stage, multi-bed mode.

AB - Over the past few decades there have been considerable efforts to use adsorption (solid/vapor) for cooling and heat pump applications, but intensified efforts were initiated only since the imposition of international restrictions on the production and utilization of CFCs and HCFCs. In this paper, a dual-mode silica gel-water adsorption chiller design is outlined along with the performance evaluation of the innovative chiller. This adsorption chiller utilizes effectively low-temperature solar or waste heat sources of temperature between 40 and 95 °C. Two operation modes are possible for the advanced chiller. The first operation mode will be to work as a highly efficient conventional chiller where the driving source temperature is between 60 and 95 °C. The second operation mode will be to work as an advanced three-stage adsorption chiller where the available driving source temperature is very low (between 40 and 60 °C). With this very low driving source temperature in combination with a coolant at 30 °C, no other cycle except an advanced adsorption cycle with staged regeneration will be operational. The drawback of this operational mode is its poor efficiency in terms of cooling capacity and COP. Simulation results show that the optimum COP values are obtained at driving source temperatures between 50 and 55 °C in three-stage mode, and between 80 and 85 °C in single-stage, multi-bed mode.

UR - http://www.scopus.com/inward/record.url?scp=0042862979&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042862979&partnerID=8YFLogxK

U2 - 10.1016/S0140-7007(03)00074-4

DO - 10.1016/S0140-7007(03)00074-4

M3 - Article

AN - SCOPUS:0042862979

VL - 26

SP - 749

EP - 757

JO - International Journal of Refrigeration

JF - International Journal of Refrigeration

SN - 0140-7007

IS - 7

ER -