Numerical investigation of free-cooling system using plate type PCM storage |
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| Affiliation: | 1. Department of Mechanical Engineering, Islamic Azad University Sari Branch, Sari, Islamic Republic of Iran;2. State Key Laboratory of Automotive, Safety and Energy, Tsinghua University, Beijing 100084, China;3. Nanyang Technological University, School of Mechanical and Aerospace Engineering, 50 Nanyang Avenue, Singapore 639798, Singapore;4. Faculty of Mechanical Engineering, Babol University of Technology, Babol, Islamic Republic of Iran;1. Graduate School of the Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran;2. Graduate School of Petroleum Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;1. Egypt-Japan University of Science and Technology, Alexandria, Egypt;2. Mechanical Engineering Department, Faculty of Engineering, Benha University, Benha, Egypt;3. Mechanical Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt |
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| Abstract: | Free cooling night ventilation is the process of storing the coolness in the night time and releasing this coolness in hot day time. In this paper, a numerical study was carried out to simulate and to find out the optimum design for plate type storage filled with phase change material (PCM) which is used in night ventilation systems. The effect of different parameters such as thickness of PCM-plates, inlet air temperature and air mass flow rates on melting front, cooling power, outlet temperature and thermal performance of heat exchanger was studied. The results showed that cooling power can be increased by increasing the mass flow rate. Also, the thickness of the plates in the storage device plays an important role in the thermal performance of the unit and has a linear relation with the melting process duration of PCM for considered configuration. |
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