During the incineration process, waste materials are combusted at very high temperatures, resulting in flue gas and particulates. The particulates, such as ash and other organic particles, must be filtered from the flue gas before it is released into the atmosphere. One method of filtration is the use of a bag house. This requires the temperature of the gas to be reduced to below 450⁰F (232⁰C).
Thermapower® Organic Rankine Cycle (ORC) Systems can be used to remove the heat from the flue gas and convert it into electric power, which can be used onsite or sold to the local utility.
Thermapower ORC 125XLT systems currently power onsite processes at ERTEC’s industrial and municipal solid waste processing plant in Japan. ERTEC anticipates the Thermapower systems will reduce annual electricity costs by approximately 20.00 million yen, and will decrease CO2 emissions output by 600 tons.