Performance Analysis of Solar Assisted Desiccant Cooling System Cycles in World Climate Zones

[+] Author and Article Information
Muzaffar Ali

Energy Department, Austrian Institute of Technology, Giefinggasse 2, 1210 Vienna, Austria Energy/Mechanical Engineering Department, University of Engineering and Technology Taxila, Pakistan

Vladimir Vukovic

Centre for Construction Innovation and Research; School of Science, Engineering and Design, Teesside University UK

Hafiz Muhammad Ali

Energy/Mechanical Engineering Department, University of Engineering and Technology Taxila, Pakistan

Nadeem Ahmed Sheikh

Mechanical Engineering Department, HITEC University, Taxila, Pakistan

1Corresponding author.

ASME doi:10.1115/1.4039426 History: Received March 21, 2017; Revised January 24, 2018


The demand for affordable, environmentally friendly and reliable air conditioning systems has led to the introduction of several standalone and/or hybrid alternatives. The technology of Desiccant Evaporative Cooling (DEC) has proven to be dependable and has gained success at places where initially it was deemed unfeasible. Today, a number of related technologies and configurations are available. Amongst them solar-assisted desiccant cooling system (SADCS) offers a cheap eco-friendly alternative especially in hybrid configurations. Most studies have investigated the performance of numerous SADCS configurations in specific climatic conditions; however, at the global scale no such study is available. The current study investigates five different SADCS configurations using Equation-based Object-Oriented (EOO) modelling and simulation approach in five different climatic conditions. The selected climatic conditions cover a wide range of global weather data including arid/semiarid (Karachi), dry summer tropical (Adelaide), mesothermal (Sao Paulo, Shanghai) to continental conditions (Vienna). The performance of all selected SADCS configurations (ventilation cycle, recirculation and ventilated-recirculation cycles, dunkle and ventilated-dunkle cycle) are analysed for specified cooling design day of the selected cities. A uniform system control strategy based on the idea of displacement distribution (ventilation) system is used for each configuration and climatic zone.

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