Exergoeconomic performances of the desiccant-evaporative air-conditioning system at different regeneration and reference temperatures |
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| Affiliation: | 1. Enteria Grün Energietechnik, Davao 8000, Philippines;2. Tohoku University, Sendai 980-8579, Japan;3. Building Research Institute, Tsukuba 305-0802, Japan;4. Architectural Institute of Japan, Tokyo 108-8414, Japan;5. Maeda Corporation, Tokyo 179-8914, Japan;6. Akita Prefectural University, Akita 010-0195, Japan;1. Institute of Refrigeration and Cryogenics, Zhejiang University, 310027, Hangzhou, China;2. Ningbo Institute of Technology, Zhejiang University, 315100, Ningbo, China;1. ENEDI Research Group, Escuela Técnica Superior de Ingeniería de Bilbao, UPV/EHU, Alameda Urquijo s/n, 48013 Bilbao, Spain;2. Thermal Area, Lab. Quality Control in Buildings of the Basque Government, Aguirrelanda 10, 01013 Vitoria-Gasteiz, Basque Country (Spain);1. Research Centre for Nano-Materials and Energy Technology (RCNMET), School of Engineering and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, Petaling Jaya, 47500 Selangor Darul Ehsan, Malaysia;2. College of Engineering, University Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan, Pahang, Malaysia;3. School of Mechanical Engineering, Shri Mata Vaishno Devi University, Katra 182320, Jammu & Kashmir, India;4. Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia;5. Center of Research Excellence in Renewable Energy and Power Systems, King Abdulaziz University, Jeddah 21589, Saudi Arabia;6. Department of Mechanical Engineering, Institute of Engineering and Technology, GLA University, Mathura, 281406, India;7. School of Energy Management, Shri Mata Vaishno Devi University, Katra 182320, J&K, India |
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| Abstract: | This paper presented the exergoeconomic evaluation of the developed desiccant-evaporative air-conditioning system. The developed system was evaluated based on the steady-state conditions at different regeneration and reference temperatures. The exergoeconomic evaluation method was implemented to the system components and the whole system to evaluate the exergy efficiency, exergy destruction ratios, cost rates, relative cost differences and exergoeconomic factors. The regeneration and reference temperatures affected the exergy efficiencies, exergy destruction ratios, cost rates, relative cost differences and exergoeconomic factors. The desiccant wheel, heating coil and evaporative cooler had a high cost rate (investment cost, operation and maintenance cost, and exergy destruction cost). The exit air fan, outdoor air fan and evaporative cooler had a high relative cost difference. The exit air fan, outdoor air fan and secondary heat exchanger had a high exergoeconomic factor. Replacement of the desiccant wheel with a higher dehumidification performance could decrease the high cost rate. A higher efficiency evaporative cooler and heating coil were needed. Cheaper air fans (outdoor air fans and exit air fans) were needed. |
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| Keywords: | Thermodynamics Exergoeconomic Desiccant dehumidification Evaporative cooling Thermodynamique Exergoéconomique Deshumidification á deshydratant Refroidissement évaporatif |
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