TY - JOUR
T1 - Experimental investigation on a cooling cum desalination system using a modified mechanical heat pump
AU - Anand, B.
AU - Murugavelh, S.
AU - Shankar, R.
AU - Phelan, Patrick
N1 - Publisher Copyright:
© 2022
PY - 2022/11
Y1 - 2022/11
N2 - An experimental study on a mechanical heat pump unit incorporated with a humidification-dehumidification system for desalination and cooling is presented. The experimental prototype is developed by modifying the condenser of a mechanical heat pump unit into an evaporative condenser. The evaporative condenser is used as a humidifier, and the evaporator as a dehumidifier, of the humidification-dehumidification desalination system. The proposed unit is evaluated with combinations of air and saline water flow rates, and also evaluated by means of total desalination output, cooling output, gained output ratio and energy utilization factor. At fixed air flow rate, increasing saline water flow rate decreases the desalination output, and increases the cooling output, gained output ratio and energy utilization factor, respectively. The highest fresh water yield and gained output ratio are 2.94 LPH and 1.30 respectively. The highest cooling output and energy utilization factor are 4.39 kWth and 4.12, respectively. The total urban heat island mitigation at the operating condition of 200 m3.h−1 and 380 LPH is 5.25 kWth. Compared with similar vapor compression refrigeration operated humidification dehumidification desalination units, the present study produces more fresh water yield and cooling output with fewer energy consuming devices and heat exchangers.
AB - An experimental study on a mechanical heat pump unit incorporated with a humidification-dehumidification system for desalination and cooling is presented. The experimental prototype is developed by modifying the condenser of a mechanical heat pump unit into an evaporative condenser. The evaporative condenser is used as a humidifier, and the evaporator as a dehumidifier, of the humidification-dehumidification desalination system. The proposed unit is evaluated with combinations of air and saline water flow rates, and also evaluated by means of total desalination output, cooling output, gained output ratio and energy utilization factor. At fixed air flow rate, increasing saline water flow rate decreases the desalination output, and increases the cooling output, gained output ratio and energy utilization factor, respectively. The highest fresh water yield and gained output ratio are 2.94 LPH and 1.30 respectively. The highest cooling output and energy utilization factor are 4.39 kWth and 4.12, respectively. The total urban heat island mitigation at the operating condition of 200 m3.h−1 and 380 LPH is 5.25 kWth. Compared with similar vapor compression refrigeration operated humidification dehumidification desalination units, the present study produces more fresh water yield and cooling output with fewer energy consuming devices and heat exchangers.
KW - Cooling
KW - Desalination
KW - Heat pump
KW - Humidification-dehumidification
KW - Urban heat island
KW - Vapor compression refrigeration
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U2 - 10.1016/j.ijrefrig.2022.06.025
DO - 10.1016/j.ijrefrig.2022.06.025
M3 - Article
AN - SCOPUS:85137687139
SN - 0140-7007
VL - 143
SP - 138
EP - 147
JO - International Journal of Refrigeration
JF - International Journal of Refrigeration
ER -