A solar-assisted winter air-conditioning system for hot and dry climates using summer air-coolers
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Date
Authors
El-Awad, M. M.
Journal Title
Journal ISSN
Volume Title
Publisher
International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics
Abstract
Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.
The paper presents an energy-efficient winter air-conditioning system which is suitable for regions with mildly cold but dry winters. The system modifies the evaporative air-cooler that is commonly used for summer air-conditioning in such regions by adding a heating process after the humidification process. The paper presents a theoretical model that estimates the system's water consumption and energy needed for the heating process. Based on the results obtained, the paper shows that a 150-LPD solar heater is adequate for air-conditioning a 500 ft'/min air flow rate for four hours of operation. The maximum air-flow rate that can be heated by a single solar water-heater for four hours of operation is about 900-cfm, unless a solar water heater large than a 250-LPD heater is used.
The paper presents an energy-efficient winter air-conditioning system which is suitable for regions with mildly cold but dry winters. The system modifies the evaporative air-cooler that is commonly used for summer air-conditioning in such regions by adding a heating process after the humidification process. The paper presents a theoretical model that estimates the system's water consumption and energy needed for the heating process. Based on the results obtained, the paper shows that a 150-LPD solar heater is adequate for air-conditioning a 500 ft'/min air flow rate for four hours of operation. The maximum air-flow rate that can be heated by a single solar water-heater for four hours of operation is about 900-cfm, unless a solar water heater large than a 250-LPD heater is used.
Description
Keywords
Energy-efficient winter air-conditioning system
Sustainable Development Goals
Citation
El-Awad, MM 2010, 'A solar-assisted winter air-conditioning system for hot and dry climates using summer air-coolers', Paper presented to the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July 2010.