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http://dx.doi.org/10.5762/KAIS.2017.18.3.122

A Numerical Study on the Performance Analysis of a Solar Air Heating System with Forced Circulation Method  

Park, Hyeong-Su (Nano.IT Fusion Program, Graduate School of Nano IT Design Fusion, Seoul National Univ. of Science & Technology)
Kim, Chul-Ho (Department of Mechanical & Automotive Engineering, Seoul National University of Science & Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.3, 2017 , pp. 122-126 More about this Journal
Abstract
The aim of this study was to develop a device for solving the heating problem of living space using heated air, utilizing a simple air heater type collector for solar energy. At the present time, this study assessed the possibility of a development system through theoretical calculations for the amount of available energy according to the size change of the air-heated solar energy collector. To produce and supply hot water using the heat energy of the sun, hot water at $100^{\circ}C$ or less was produced using a flat or vacuum tube type collector. The purpose of this study was to research the air heating type solar collector that utilizes heating energy with heating air above $75^{\circ}C$, by designing and manufacturing an air piping type solar collector that is a simpler type than a conventional solar collector system. The analysis results were obtained for the generated air temperature ($^{\circ}C$) and the production of air (kg/h) to determine the performance of air heating by an air-heated solar collector according to the heat transfer characteristics in the collector of the model when a specified amount of heat flux was dropped into a solar collector of a certain size using PHOENICS, which is a heat flow analysis program applying the Finite Volume Method. From the analysis result, the temperature of the air obtained was approximately $40.5^{\circ}C$, which could be heated using an air heating tube with an inner diameter of 0.1m made of aluminum in a collector with a size of $1.2m{\times}1.1m{\times}0.19m$. The production of air was approximately 161 m3/h. This device can be applied to maintain a suitable environment for human activity using the heat energy of the sun.
Keywords
Natural Circulation; Numerical Study; Solar air Heating System; Finite Volume Method; Rectangular Grid;
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