Abstract
This paper presents a transient numerical study of two-stage, air-cooled silica gel + water adsorption system producing cooling and potable water. The key aspect of the present study is an attempt to model the inter-stage pressure dynamics when two beds exchange mass in terms of vapors across the stages. This is an important improvement over prior models wherein the inter-stage pressure was assumed to be either constant or user input. Furthermore, the evaporator and condenser pressures are also allowed to vary in this study in contrast to the previous papers. The simulation results are compared with the experimental data for various cycle times and chilled water inlet temperatures in the range of 11.5–20.0 °C, while having the heat source temperature fixed at 85 °C and air temperature at 36 °C. Depending on the chilled water inlet temperature and cycle time, the SCC is found to be between 2 and 7 Rton/tonne of silica gel; SDWP ranges within 0.3–0.9 m3/day/tonne of silica gel and COP varies between 0.05 and 0.26.
| Original language | English |
|---|---|
| Pages (from-to) | 704-712 |
| Number of pages | 9 |
| Journal | Applied Thermal Engineering |
| Volume | 114 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
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All Science Journal Classification (ASJC) codes
- Energy Engineering and Power Technology
- Industrial and Manufacturing Engineering
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Modeling study of two-stage, multi-bed air cooled silica gel + water adsorption cooling cum desalination system. / Mitra, Sourav; Thu, Kyaw; Saha, Bidyut Baran; Srinivasan, Kandadai; Dutta, Pradip.
In: Applied Thermal Engineering, Vol. 114, 01.01.2017, p. 704-712.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Modeling study of two-stage, multi-bed air cooled silica gel + water adsorption cooling cum desalination system
AU - Mitra, Sourav
AU - Thu, Kyaw
AU - Saha, Bidyut Baran
AU - Srinivasan, Kandadai
AU - Dutta, Pradip
PY - 2017/1/1
Y1 - 2017/1/1
N2 - This paper presents a transient numerical study of two-stage, air-cooled silica gel + water adsorption system producing cooling and potable water. The key aspect of the present study is an attempt to model the inter-stage pressure dynamics when two beds exchange mass in terms of vapors across the stages. This is an important improvement over prior models wherein the inter-stage pressure was assumed to be either constant or user input. Furthermore, the evaporator and condenser pressures are also allowed to vary in this study in contrast to the previous papers. The simulation results are compared with the experimental data for various cycle times and chilled water inlet temperatures in the range of 11.5–20.0 °C, while having the heat source temperature fixed at 85 °C and air temperature at 36 °C. Depending on the chilled water inlet temperature and cycle time, the SCC is found to be between 2 and 7 Rton/tonne of silica gel; SDWP ranges within 0.3–0.9 m3/day/tonne of silica gel and COP varies between 0.05 and 0.26.
AB - This paper presents a transient numerical study of two-stage, air-cooled silica gel + water adsorption system producing cooling and potable water. The key aspect of the present study is an attempt to model the inter-stage pressure dynamics when two beds exchange mass in terms of vapors across the stages. This is an important improvement over prior models wherein the inter-stage pressure was assumed to be either constant or user input. Furthermore, the evaporator and condenser pressures are also allowed to vary in this study in contrast to the previous papers. The simulation results are compared with the experimental data for various cycle times and chilled water inlet temperatures in the range of 11.5–20.0 °C, while having the heat source temperature fixed at 85 °C and air temperature at 36 °C. Depending on the chilled water inlet temperature and cycle time, the SCC is found to be between 2 and 7 Rton/tonne of silica gel; SDWP ranges within 0.3–0.9 m3/day/tonne of silica gel and COP varies between 0.05 and 0.26.
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UR - http://www.scopus.com/inward/citedby.url?scp=85006365397&partnerID=8YFLogxK
U2 - 10.1016/j.applthermaleng.2016.12.011
DO - 10.1016/j.applthermaleng.2016.12.011
M3 - Article
AN - SCOPUS:85006365397
VL - 114
SP - 704
EP - 712
JO - Applied Thermal Engineering
JF - Applied Thermal Engineering
SN - 1359-4311
ER -