Comprehensive Study On Hybrid Geothermal-Solar Cooling Systems With Special Focus On Gujarat, Western India

Abstract

To utilize the resources at hand and for solving the issue of energy security in India, focus on various ways of using the naturally available unconventional energies has been intensifying for last couple of decades. This is fueled by the augmenting awareness about Global Warming and hazards of pollution. Renewable energies like wind power, solar energy, nuclear energy, geothermal energy, biomass and hydro energy need to be given the upper hand. This paper discusses the integrated systems of solar and geothermal energies and proposes design for heating, ventilation and air-cooling system for use in Gujarat on commercial basis for domestic and commercial buildings. Winters in Gujarat see an average of about 22°C while in summers, temperatures peak to around 42°C. The average ground temperature remains constant at around 30°C all around the year being warmer than atmosphere in winter and cooler in summer by around 10°C. Thus, ground can be used as a heat source or sink respectively. Power from solar collectors can be used to run the electrical components of the system like pumps and the rest of the power can directly be added to the power supply of the building. This proves economical than conventional cooling systems working on electrical energy as it makes use of both the accumulation and loss of heat simultaneously at two different places for heating and cooling respectively.

AAPG Datapages/Search and Discovery Article #90346 ©2019 AAPG European Region, 3rd Hydrocarbon Geothermal Cross Over Technology Workshop, Geneva, Switzerland, April 9-10, 2019