Effects of Mass Flow Rate on Combustion Characteristics and Emissions of Micro Gas Turbine
Abstract
Gas turbine is one of the important power generation applications that facing the world towards its challenging climate change targets. A potential many technologies develop to control combustion strategies thus lead to the development of practical micro gas turbine combustor conditions, portable electronic devices and the consumption of electrical power which for the purposes of new electricity generation. Micro gas turbine is a are small combustion gas turbines with single shaft rotary engine, which extracts power output from combustion flow. However, the scaling down of mechanism and gas turbine technology impacts negatively the ignition process, heat and combustion processes which reduces the turbine power output and efficiency. In this research work, exhaust emissions from experimental campaign on the micro gas turbine run with Liquefied Petroleum Gas(LPG) are presented. Emissions such as carbon monoxide (CO), carbon dioxide (CO2) and nitrogen oxide (NOX) were measured at mass flow rate. This research intends to determine the effects of Effects of Mass Flow Rate on Combustion Characteristics and Emissions of low-pressure turbine micro gas turbine system. The compressor of turbine in the system were limited to 100,000 rpm and 1000 OC to avoid any failure in the system. Micro gas turbine emissions and the low pressure speeds were observed with the increment of 10 L/m of LPG. The emission of the micro gas turbine was analyzed electronically by Autocheck Gas Analyzer , Laser Photo and Contact Tachometer. Based on the simulation, it is observed that the pressure drop of the fluid related to the mass flow rate and also the heat transfers between fluids increased when the mass flow rate increased. In addition, it shows that the micro gas turbine produced 3.50 % of CO, 39 ppm of NOX, 10.29 % of CO2, and 4.78 % of O2 of emission.
