TY - JOUR
T1 - Performance investigation of solid desiccant evaporative cooling system configurations in different climatic zones
AU - Ali, Muzaffar
AU - Vukovic, Vladimir
AU - Sheikh, Nadeem Ahmed
AU - Ali, Hafiz M.
PY - 2015/4/5
Y1 - 2015/4/5
N2 - Performance of desiccant evaporative cooling (DEC) system configurations is strongly influenced by the
climate conditions and varies widely in different climate zones. Finding the optimal configuration of DEC
systems for a specific climatic zone is tedious and time consuming. This investigation conducts performance
analysis of five DEC system configurations under climatic conditions of five cities from different
zones: Vienna, Karachi, Sao Paulo, Shanghai, and Adelaide. On the basis of operating cycle, three standard
and two modified system configurations (ventilation, recirculation, dunkle cycles; ventilatedrecirculation
and ventilated-dunkle cycles) are analyzed in these five climate zones. Using an advance
equation-based object-oriented (EOO) modeling and simulation approach, optimal configurations of a
DEC system are determined for each climate zone. Based on the hourly climate data of each zone for
its respective design cooling day, performance of each system configuration is estimated using three performance
parameters: cooling capacity, COP, and cooling energy delivered. The results revealed that the
continental/micro-thermal climate of Vienna, temperate/mesothermal climate of Sao Paulo, and drysummer
subtropical climate of Adelaide favor the use of ventilated-dunkle cycle configuration with
average COP of 0.405, 0.89 and 1.01 respectively. While ventilation cycle based DEC configuration suits
arid and semiarid climate of Karachi and another category of temperate/mesothermal climate of
Shanghai with average COP of 2.43 and 3.03 respectively.
AB - Performance of desiccant evaporative cooling (DEC) system configurations is strongly influenced by the
climate conditions and varies widely in different climate zones. Finding the optimal configuration of DEC
systems for a specific climatic zone is tedious and time consuming. This investigation conducts performance
analysis of five DEC system configurations under climatic conditions of five cities from different
zones: Vienna, Karachi, Sao Paulo, Shanghai, and Adelaide. On the basis of operating cycle, three standard
and two modified system configurations (ventilation, recirculation, dunkle cycles; ventilatedrecirculation
and ventilated-dunkle cycles) are analyzed in these five climate zones. Using an advance
equation-based object-oriented (EOO) modeling and simulation approach, optimal configurations of a
DEC system are determined for each climate zone. Based on the hourly climate data of each zone for
its respective design cooling day, performance of each system configuration is estimated using three performance
parameters: cooling capacity, COP, and cooling energy delivered. The results revealed that the
continental/micro-thermal climate of Vienna, temperate/mesothermal climate of Sao Paulo, and drysummer
subtropical climate of Adelaide favor the use of ventilated-dunkle cycle configuration with
average COP of 0.405, 0.89 and 1.01 respectively. While ventilation cycle based DEC configuration suits
arid and semiarid climate of Karachi and another category of temperate/mesothermal climate of
Shanghai with average COP of 2.43 and 3.03 respectively.
U2 - 10.1016/j.enconman.2015.03.025
DO - 10.1016/j.enconman.2015.03.025
M3 - Article
VL - 97
SP - 323
EP - 339
JO - Energy Conversion and Management
JF - Energy Conversion and Management
ER -