DESIGN OF GEOTHERMAL HEAT PUMP
A Project Report Submitted By
Peter Galimutti (2474762)
Neeraj Pastakia (2462895)
Balasubrahmanyam Vanum (2474858)
(MCE 622: Energy Conversion)
MASTER OF SCIENCE IN
MECHANICAL ENGINEERING
Fall 07
Under the esteemed guidance of
Dr.Earnest N.Poulous
(Associate Professor)
DEPARTMENT OF MECHANICAL ENGINEERING
FENN COLLEGE OF ENGINEERING
CLEVELAND STATE UNIVERSITY
ABSTRACT To address energy problems in the very near future, especially in the area of heating and air-conditioning of building structures, it is proposed that a geothermal system be designed with emphasis on the residential application of heating and cooling. The proposed design will be using a single central reservoir cylindrical in shape which will be stored approximately 50 feet underground. The transfer of heat to or from the central reservoir will be achieved through a piping system connected to a special Freon evaporator installed above around in conjunction with glycol working fluid media. A directional valve will be provided to reverse the movement of the refrigerant to create the heating and cooling cycles. The proposed geothermal energy system is basically a ground heat pump intended to replace currently used piping systems buried in extension ground trenches. The proposed underground central reservoir system will reduce the amount of excavation required by currently used systems, ground surface areas, and thereby the overall installation costs, and reduces the potential for an environmental mishap due to rupturing of the piping. In this project software called SINDA/FLUINT has been used to design a geothermal system. SINDA is primarily intended for designing and analyzing thermal systems represented in electric analog, lumped parameter form. This software can solve
References: Duffield, Wendell A., John H. Sass, and Michael L. Sorey, 1994, Tapping the Earth’s Natural Heat: U.S. Geological Survey Circular 1125 (reprints available from Geothermal Education Office) Fridleifsson, Ingvar, 1998, "Geothermal Direct Use Around the World": Geothermal Resources Council Bulletin, V. 27, No. 8, Nov. 1998 Lund, John W., 1998, Direct Utilization of Geothermal Resources: Technical Paper, GeoHeat Center, Oregon Institute of Technology, Klamath Falls, Oregon Wright, Phillip Michael, 1998, ‘"The earth gives up its heat! Geothermal energy -- a clean, sustainable resource": Renewable Energy World, Vol. 1, No. 3, Nov. 1998 Links used http://en.wikipedia.org/wiki/Geothermal_power http://www.renewableenergyaccess.com/rea/tech/geothermal http://www.geo-energy.org/