Modelling and analysis of air-cooled reciprocating chiller and demand energy savings using passive cooling |
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| Authors: | Ashfaque Ahmed Chowdhury MG Rasul MMK Khan |
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| Affiliation: | 1. Interventional Radiology and Image guided Medicine, Winship Cancer Institute, Emory University School of Medicine, 1364 Clifton Road NE, Suite AG-05, Atlanta, GA 30322;2. Hematology and Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, 1364 Clifton Road NE, Suite AG-05, Atlanta, GA 30322;3. Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University School of Medicine, 1364 Clifton Road NE, Suite AG-05, Atlanta, GA 30322;4. Biostatistics & Bioinformatics, Winship Cancer Institute, Emory University School of Medicine, 1364 Clifton Road NE, Suite AG-05, Atlanta, GA 30322;1. Systems Design Engineering Department, University of Waterloo, Ontario, Canada N2L 3G1;2. Department of Mechanical Engineering, University of California, Berkeley 94720, USA;1. Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran;2. Department of Mechanical Engineering, Faculty of Engineering, Arak University, Arak, Iran;1. Department of Mechanical Engineering, Columbia University, New York, NY 10027, United States;2. Skycatch Inc., San Francisco, CA 94107, United States |
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| Abstract: | The study presents modelling and analysis of air-cooled chiller system in an office building at Central Queensland University in Rockhampton, Australia. EnergyPlus, building energy simulation software, has been used to model and to simulate the energy savings. Base case cooling energy has been compared with measured data. The simulated results show a reasonable agreement with the measured data. As a passive cooling means, the effect of economiser usages and pre-cooling have been simulated and analysed to assess annual demand savings for an energy intensive office building at Rockhampton, Australia. It was found that implementation of the pre-cooling and economiser system could save 115 kW/m2/month and 72 kW/m2/month total cooling energy and 26 kW/m2/month and 42 kW/m2/month chiller energy, respectively. |
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