Design, Construction and Testing of a Parabolic （设计、施工和检测的抛物线）.pdfVIP

Leonardo Electronic Journal of Practices and Technologies Issue 14, January-June 2009 ISSN 1583-1078 p. 115-133 Design, Construction and Testing of a Parabolic Solar Steam Generator Joshua FOLARANMI Department of Mechanical Engineering, Federal University of Technology Minna, Niger State. Nigeria. E-mail: folajo2008@ Abstract This paper reports the design, construction and testing of a parabolic dish solar steam generator. Using concentrating collector, heat from the sun is concentrated on a black absorber located at the focus point of the reflector in which water is heated to a very high temperature to form steam. It also describes the sun tracking system unit by manual tilting of the lever at the base of the parabolic dish to capture solar energy. The whole arrangement is mounted on a hinged frame supported with a slotted lever for tilting the parabolic dish reflector to different angles so that the sun is always directed to the collector at different period of the day. On the average sunny and cloud free days, the test results gave high temperature above 200°C. Keywords Solar Energy, Sun, Heat, Steam, Water, Radiation, Temperature Introduction The sun and its Energy 115 Design, Construction and Testing of a Parabolic Solar Steam Generator