Mapping Potential of Utilization of Waste Exhaust Gases to Reinforce Power Generation

Abstract

The objective of this paper is to formulate the techniques to convert and utilize the waste pressurized hot gases which are “exhausted as waste gases that are dumped out into the environment” in the form of power as for gaining some more useful and economical purposes in various industries like Oil & Gas, Steel, Automobiles, Cement etc., in their industrial processes waste gases, steam, non-condensable gases or pressurized hot gases are exhausting out with certain pressures. Similar to waste heat, waste pressure can also be defined or taken as pressure energy. Utilization of that pressure energy in rotating the rotor of a turbine and generating electrical power that can be more economic and for company related domestic use.

The U.S. industrial sector accounts for about one-third of the total energy consumed in the United States and is responsible for about one-third of fossil fuel related greenhouse gas emissions. It is estimated that somewhere between 20 to 50% of industrial energy input is lost as waste heat in the form of hot exhaust gases, cooling water, and heat lost from hot equipment surfaces and heated products. As the industrial sector continues efforts to improve its energy efficiency, recovering waste heat losses provides an attractive opportunity for an emission free and less costly energy resource. This waste heat can be used in producing high pressurized steam then to generate power.

There are two aspects of getting pressure required to rotate a turbine and in creating power. 1. By connecting turbine systems to the exhaust directly where there are high pressures. Or 2. By using waste heat in producing hot pressurized steam and connecting it to a turbine for power generation.

Keywords: Waste heat, Exhaust gases, Power