Reduction of electrical load for air conditioning by electronically controlled geothermal energy

This paper describes the design steps of a geothermal system for air conditioning to reduce electricity consumption in residential and small business ambient. To do that it is used surface geothermal energy as one of the heating sources. The geothermal surface is renewable, clean, universal, silent and odorless relying on the circulation of a refrigerant within a pipe hose buried with the aid of a very small size pump, so that the earth absorbs heat in the summer and supplies it to the rooms in the winter. There is a controlled exchange of heat between the one removed from the grounds by a water circulating radiator and a room ventilation system. That is, if the temperature inside the building is above the earth temperature it will tend to level off the temperature with that from ground. A prototype of heat exchanger and electronic control system without any heat pump was built using a hill climbing algorithm to optimize the water pump speed and this heat exchanging system.