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Bidyut Baran Saha - One of the best experts on this subject based on the ideXlab platform.

  • the performance analysis of a novel dual Evaporator type three bed adsorption chiller
    International Journal of Refrigeration-revue Internationale Du Froid, 2010
    Co-Authors: Takahiko Miyazaki, Atsushi Akisawa, Bidyut Baran Saha
    Abstract:

    Abstract This paper deals with the performance evaluation of an innovative, waste heat driven dual Evaporator type three-bed adsorption cycle for cooling application. The innovative adsorption chiller has two Evaporators, three adsorbent beds, and a condenser, and the Evaporators work at different pressure levels. The effects of hot water inlet temperature, chilled water inlet and outlet temperatures, and cycle time on the specific cooling capacity (SCC) and coefficient of performance (COP) were predicted by simulation. For the same operating condition, the SCC and COP of the dual Evaporator type three-bed adsorption chiller were found to be 1.5 and 1.7 times higher than those of the two-bed single-stage adsorption chiller, respectively.

  • The performance analysis of a novel dual Evaporator type three-bed adsorption chiller
    International Journal of Refrigeration, 2010
    Co-Authors: Takahiko Miyazaki, Atsushi Akisawa, Bidyut Baran Saha
    Abstract:

    This paper deals with the performance evaluation of an innovative, waste heat driven dual Evaporator type three-bed adsorption cycle for cooling application. The innovative adsorption chiller has two Evaporators, three adsorbent beds, and a condenser, and the Evaporators work at different pressure levels. The effects of hot water inlet temperature, chilled water inlet and outlet temperatures, and cycle time on the specific cooling capacity (SCC) and coefficient of performance (COP) were predicted by simulation. For the same operating condition, the SCC and COP of the dual Evaporator type three-bed adsorption chiller were found to be 1.5 and 1.7 times higher than those of the two-bed single-stage adsorption chiller, respectively. © 2009 Elsevier Ltd and IIR.

Andrew Gigiel - One of the best experts on this subject based on the ideXlab platform.

  • Development of a novel multi-capillary, multi-temperature commercial refrigerator cabinet with common low-pressure receiver
    International Journal of Refrigeration-revue Internationale Du Froid, 2008
    Co-Authors: Judith Evans, Edward Hammond, Andrew Gigiel
    Abstract:

    A multi-temperature 4 drawer catering cabinet was designed to operate using a low-pressure receiver with capillary expansion to the separate Evaporator in each drawer. Low-pressure receivers have been shown to be an effective way of allowing Evaporators to operate in a fully flooded mode thus enabling more efficient use of the Evaporator surface for heat transfer. If a low-pressure receiver is used in a refrigeration circuit the control of refrigerant flow into the Evaporator is less critical as the expansion device is not responsible for preventing liquid returning to the compressor. Therefore, a capillary expansion device can be used effectively over a range of operating pressures. The system was shown to be effective at maintaining temperatures in the storage drawers during chilled, frozen and mixed storage temperature tests carried out to the EN441 test standard. The cabinet operated successfully at all conditions except when the heat load in each drawer was excessive (>400 W above base level heat load). In this case, refrigerant was found to back up in the condenser and the low-pressure receiver was empty of liquid refrigerant. A solution to this would be to allow controlled flow of refrigerant from the condenser to the low-pressure receiver at high condensing pressures.

  • Development of a novel multi-capillary, multi-temperature commercial refrigerator cabinet with common low-pressure receiver
    International Journal of Refrigeration, 2008
    Co-Authors: Judith Evans, Edward Hammond, Andrew Gigiel
    Abstract:

    A multi-temperature 4 drawer catering cabinet was designed to operate using a low-pressure receiver with capillary expansion to the separate Evaporator in each drawer. Low-pressure receivers have been shown to be an effective way of allowing Evaporators to operate in a fully flooded mode thus enabling more efficient use of the Evaporator surface for heat transfer. If a low-pressure receiver is used in a refrigeration circuit the control of refrigerant flow into the Evaporator is less critical as the expansion device is not responsible for preventing liquid returning to the compressor. Therefore, a capillary expansion device can be used effectively over a range of operating pressures. The system was shown to be effective at maintaining temperatures in the storage drawers during chilled, frozen and mixed storage temperature tests carried out to the EN441 test standard. The cabinet operated successfully at all conditions except when the heat load in each drawer was excessive (>400 W above base level heat load). In this case, refrigerant was found to back up in the condenser and the low-pressure receiver was empty of liquid refrigerant. A solution to this would be to allow controlled flow of refrigerant from the condenser to the low-pressure receiver at high condensing pressures. ?? 2007 Elsevier Ltd and IIR.

Takahiko Miyazaki - One of the best experts on this subject based on the ideXlab platform.

  • the performance analysis of a novel dual Evaporator type three bed adsorption chiller
    International Journal of Refrigeration-revue Internationale Du Froid, 2010
    Co-Authors: Takahiko Miyazaki, Atsushi Akisawa, Bidyut Baran Saha
    Abstract:

    Abstract This paper deals with the performance evaluation of an innovative, waste heat driven dual Evaporator type three-bed adsorption cycle for cooling application. The innovative adsorption chiller has two Evaporators, three adsorbent beds, and a condenser, and the Evaporators work at different pressure levels. The effects of hot water inlet temperature, chilled water inlet and outlet temperatures, and cycle time on the specific cooling capacity (SCC) and coefficient of performance (COP) were predicted by simulation. For the same operating condition, the SCC and COP of the dual Evaporator type three-bed adsorption chiller were found to be 1.5 and 1.7 times higher than those of the two-bed single-stage adsorption chiller, respectively.

  • The performance analysis of a novel dual Evaporator type three-bed adsorption chiller
    International Journal of Refrigeration, 2010
    Co-Authors: Takahiko Miyazaki, Atsushi Akisawa, Bidyut Baran Saha
    Abstract:

    This paper deals with the performance evaluation of an innovative, waste heat driven dual Evaporator type three-bed adsorption cycle for cooling application. The innovative adsorption chiller has two Evaporators, three adsorbent beds, and a condenser, and the Evaporators work at different pressure levels. The effects of hot water inlet temperature, chilled water inlet and outlet temperatures, and cycle time on the specific cooling capacity (SCC) and coefficient of performance (COP) were predicted by simulation. For the same operating condition, the SCC and COP of the dual Evaporator type three-bed adsorption chiller were found to be 1.5 and 1.7 times higher than those of the two-bed single-stage adsorption chiller, respectively. © 2009 Elsevier Ltd and IIR.

Judith Evans - One of the best experts on this subject based on the ideXlab platform.

  • Development of a novel multi-capillary, multi-temperature commercial refrigerator cabinet with common low-pressure receiver
    International Journal of Refrigeration-revue Internationale Du Froid, 2008
    Co-Authors: Judith Evans, Edward Hammond, Andrew Gigiel
    Abstract:

    A multi-temperature 4 drawer catering cabinet was designed to operate using a low-pressure receiver with capillary expansion to the separate Evaporator in each drawer. Low-pressure receivers have been shown to be an effective way of allowing Evaporators to operate in a fully flooded mode thus enabling more efficient use of the Evaporator surface for heat transfer. If a low-pressure receiver is used in a refrigeration circuit the control of refrigerant flow into the Evaporator is less critical as the expansion device is not responsible for preventing liquid returning to the compressor. Therefore, a capillary expansion device can be used effectively over a range of operating pressures. The system was shown to be effective at maintaining temperatures in the storage drawers during chilled, frozen and mixed storage temperature tests carried out to the EN441 test standard. The cabinet operated successfully at all conditions except when the heat load in each drawer was excessive (>400 W above base level heat load). In this case, refrigerant was found to back up in the condenser and the low-pressure receiver was empty of liquid refrigerant. A solution to this would be to allow controlled flow of refrigerant from the condenser to the low-pressure receiver at high condensing pressures.

  • Development of a novel multi-capillary, multi-temperature commercial refrigerator cabinet with common low-pressure receiver
    International Journal of Refrigeration, 2008
    Co-Authors: Judith Evans, Edward Hammond, Andrew Gigiel
    Abstract:

    A multi-temperature 4 drawer catering cabinet was designed to operate using a low-pressure receiver with capillary expansion to the separate Evaporator in each drawer. Low-pressure receivers have been shown to be an effective way of allowing Evaporators to operate in a fully flooded mode thus enabling more efficient use of the Evaporator surface for heat transfer. If a low-pressure receiver is used in a refrigeration circuit the control of refrigerant flow into the Evaporator is less critical as the expansion device is not responsible for preventing liquid returning to the compressor. Therefore, a capillary expansion device can be used effectively over a range of operating pressures. The system was shown to be effective at maintaining temperatures in the storage drawers during chilled, frozen and mixed storage temperature tests carried out to the EN441 test standard. The cabinet operated successfully at all conditions except when the heat load in each drawer was excessive (>400 W above base level heat load). In this case, refrigerant was found to back up in the condenser and the low-pressure receiver was empty of liquid refrigerant. A solution to this would be to allow controlled flow of refrigerant from the condenser to the low-pressure receiver at high condensing pressures. ?? 2007 Elsevier Ltd and IIR.

Atsushi Akisawa - One of the best experts on this subject based on the ideXlab platform.

  • the performance analysis of a novel dual Evaporator type three bed adsorption chiller
    International Journal of Refrigeration-revue Internationale Du Froid, 2010
    Co-Authors: Takahiko Miyazaki, Atsushi Akisawa, Bidyut Baran Saha
    Abstract:

    Abstract This paper deals with the performance evaluation of an innovative, waste heat driven dual Evaporator type three-bed adsorption cycle for cooling application. The innovative adsorption chiller has two Evaporators, three adsorbent beds, and a condenser, and the Evaporators work at different pressure levels. The effects of hot water inlet temperature, chilled water inlet and outlet temperatures, and cycle time on the specific cooling capacity (SCC) and coefficient of performance (COP) were predicted by simulation. For the same operating condition, the SCC and COP of the dual Evaporator type three-bed adsorption chiller were found to be 1.5 and 1.7 times higher than those of the two-bed single-stage adsorption chiller, respectively.

  • The performance analysis of a novel dual Evaporator type three-bed adsorption chiller
    International Journal of Refrigeration, 2010
    Co-Authors: Takahiko Miyazaki, Atsushi Akisawa, Bidyut Baran Saha
    Abstract:

    This paper deals with the performance evaluation of an innovative, waste heat driven dual Evaporator type three-bed adsorption cycle for cooling application. The innovative adsorption chiller has two Evaporators, three adsorbent beds, and a condenser, and the Evaporators work at different pressure levels. The effects of hot water inlet temperature, chilled water inlet and outlet temperatures, and cycle time on the specific cooling capacity (SCC) and coefficient of performance (COP) were predicted by simulation. For the same operating condition, the SCC and COP of the dual Evaporator type three-bed adsorption chiller were found to be 1.5 and 1.7 times higher than those of the two-bed single-stage adsorption chiller, respectively. © 2009 Elsevier Ltd and IIR.