Impact of Ambient Pressure on Performance of Desiccant Cooling Systems

Research output: Contribution to conferencePaperpeer-review

Abstract

The impact of ambient pressure on the performance of the ventilation cycle desiccant cooling system and its components was studied using computer simulations. The impact of ambient pressure depended on whether the system was designed for fixed-mass flow rate or fixed-volume flow rate operation. As ambient pressure decreased from 1.0 to 0.8 atm, the system thermal coefficient of performance increased by 8% for both fixed-mass and fixed-volume flow rate, the cooling capacity of the system (in kW) was decreased by 14% for the fixed-volume flow rate system and increased by 7% for the fixed-mass flow rate system, the electric power requirements for the system with fixed-volume flow rate did not change, and the electric power requirement for the fixed-mass flow rate system increased by 44%. The overall coefficient of performance increased up to 5% for the fixed-volume flow rate system, and decreased up to 4% for the fixed-mass flow rate system.

Original languageAmerican English
Pages235-246
Number of pages12
StatePublished - 1992
Event1992 ASME-JSES-KSES International Solar Energy Conference Part 1 (of 2) - Maui, HI, USA
Duration: 5 Apr 19929 Apr 1992

Conference

Conference1992 ASME-JSES-KSES International Solar Energy Conference Part 1 (of 2)
CityMaui, HI, USA
Period5/04/929/04/92

NREL Publication Number

  • ACNR/CP-14947

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