Abstract
This paper presents a thermodynamic model for predicting the cooling performance of a single-bed single-stage silica gel/methanol adsorption refrigeration system. Solar heat was collected through flat plate collectors and then stored in a hot water tank. Desorber bed was heated by the hot water from the hot water tank. The temperature of the desorber bed was varied from 65 °C to 85 °C, and its effect on system performance was observed. A numerical model was developed on the basis of mass and energy balance equations, adsorption equilibrium, and kinetic equations (Dubinin–Astakhov equation) for predicting the performance of the adsorption refrigeration system under the said conditions for four major parts (adsorber, desorber, condenser, and evaporator). A programing code was written in FORTRAN for solving these equations under pre-defined material properties, and the simulation result was observed. A refrigeration effect of 577 kJ with a coefficient of performance (COP) of 0.38 could be produced for a maximum bed temperature of 90 °C, which was restricted up to 90 °C because after this temperature, the input increases more than the refrigeration effect, and COP values reduce due to a reduction in desorption mass.
| Original language | English |
|---|---|
| Pages (from-to) | 624-631 |
| Number of pages | 8 |
| Journal | Particulate Science and Technology |
| Volume | 39 |
| Issue number | 5 |
| Early online date | 16 Jun 2020 |
| DOIs | |
| Publication status | Published - 4 Jul 2021 |
| Externally published | Yes |
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Sur, A., Pandya, S., Sah, R. P., Kotecha, K., & Narkhede, S. (2021). Influence of bed temperature on performance of silica gel/methanol adsorption refrigeration system at adsorption equilibrium. Particulate Science and Technology, 39(5), 624-631. https://doi.org/10.1080/02726351.2020.1778145
Sur, Anirban ; Pandya, Sharnil ; Sah, Ramesh P. et al. / Influence of bed temperature on performance of silica gel/methanol adsorption refrigeration system at adsorption equilibrium. In: Particulate Science and Technology. 2021 ; Vol. 39, No. 5. pp. 624-631.
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title = "Influence of bed temperature on performance of silica gel/methanol adsorption refrigeration system at adsorption equilibrium",
abstract = "This paper presents a thermodynamic model for predicting the cooling performance of a single-bed single-stage silica gel/methanol adsorption refrigeration system. Solar heat was collected through flat plate collectors and then stored in a hot water tank. Desorber bed was heated by the hot water from the hot water tank. The temperature of the desorber bed was varied from 65 °C to 85 °C, and its effect on system performance was observed. A numerical model was developed on the basis of mass and energy balance equations, adsorption equilibrium, and kinetic equations (Dubinin–Astakhov equation) for predicting the performance of the adsorption refrigeration system under the said conditions for four major parts (adsorber, desorber, condenser, and evaporator). A programing code was written in FORTRAN for solving these equations under pre-defined material properties, and the simulation result was observed. A refrigeration effect of 577 kJ with a coefficient of performance (COP) of 0.38 could be produced for a maximum bed temperature of 90 °C, which was restricted up to 90 °C because after this temperature, the input increases more than the refrigeration effect, and COP values reduce due to a reduction in desorption mass.",
keywords = "Adsorption refrigeration, methanol, silica gel, solar heat, thermodynamics model",
author = "Anirban Sur and Sharnil Pandya and Sah, {Ramesh P.} and Ketan Kotecha and Swapnil Narkhede",
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Sur, A, Pandya, S, Sah, RP, Kotecha, K & Narkhede, S 2021, 'Influence of bed temperature on performance of silica gel/methanol adsorption refrigeration system at adsorption equilibrium', Particulate Science and Technology, vol. 39, no. 5, pp. 624-631. https://doi.org/10.1080/02726351.2020.1778145
Influence of bed temperature on performance of silica gel/methanol adsorption refrigeration system at adsorption equilibrium. / Sur, Anirban; Pandya, Sharnil; Sah, Ramesh P. et al.
In: Particulate Science and Technology, Vol. 39, No. 5, 04.07.2021, p. 624-631.
Research output: Contribution to journal › Article › peer-review
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T1 - Influence of bed temperature on performance of silica gel/methanol adsorption refrigeration system at adsorption equilibrium
AU - Sur, Anirban
AU - Pandya, Sharnil
AU - Sah, Ramesh P.
AU - Kotecha, Ketan
AU - Narkhede, Swapnil
PY - 2021/7/4
Y1 - 2021/7/4
N2 - This paper presents a thermodynamic model for predicting the cooling performance of a single-bed single-stage silica gel/methanol adsorption refrigeration system. Solar heat was collected through flat plate collectors and then stored in a hot water tank. Desorber bed was heated by the hot water from the hot water tank. The temperature of the desorber bed was varied from 65 °C to 85 °C, and its effect on system performance was observed. A numerical model was developed on the basis of mass and energy balance equations, adsorption equilibrium, and kinetic equations (Dubinin–Astakhov equation) for predicting the performance of the adsorption refrigeration system under the said conditions for four major parts (adsorber, desorber, condenser, and evaporator). A programing code was written in FORTRAN for solving these equations under pre-defined material properties, and the simulation result was observed. A refrigeration effect of 577 kJ with a coefficient of performance (COP) of 0.38 could be produced for a maximum bed temperature of 90 °C, which was restricted up to 90 °C because after this temperature, the input increases more than the refrigeration effect, and COP values reduce due to a reduction in desorption mass.
AB - This paper presents a thermodynamic model for predicting the cooling performance of a single-bed single-stage silica gel/methanol adsorption refrigeration system. Solar heat was collected through flat plate collectors and then stored in a hot water tank. Desorber bed was heated by the hot water from the hot water tank. The temperature of the desorber bed was varied from 65 °C to 85 °C, and its effect on system performance was observed. A numerical model was developed on the basis of mass and energy balance equations, adsorption equilibrium, and kinetic equations (Dubinin–Astakhov equation) for predicting the performance of the adsorption refrigeration system under the said conditions for four major parts (adsorber, desorber, condenser, and evaporator). A programing code was written in FORTRAN for solving these equations under pre-defined material properties, and the simulation result was observed. A refrigeration effect of 577 kJ with a coefficient of performance (COP) of 0.38 could be produced for a maximum bed temperature of 90 °C, which was restricted up to 90 °C because after this temperature, the input increases more than the refrigeration effect, and COP values reduce due to a reduction in desorption mass.
KW - Adsorption refrigeration
KW - methanol
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KW - solar heat
KW - thermodynamics model
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Sur A, Pandya S, Sah RP, Kotecha K, Narkhede S. Influence of bed temperature on performance of silica gel/methanol adsorption refrigeration system at adsorption equilibrium. Particulate Science and Technology. 2021 Jul 4;39(5):624-631. Epub 2020 Jun 16. doi: 10.1080/02726351.2020.1778145
