Different Types of Flow Field and Engine Performance of the Vortex Throttle

Abstract

In this paper, the vortex throttle model and the conventional throttle model were established and compared. Both the throttles' air flow within the model were simulated. Air flow velocity and flow were compared. The results show that, through the forming of a swirling motion of the air, the vortex throttle's air flow velocity and flow rate were increased at each same degree of valve opening. The vortex throttle's turbulent kinetic energy also helps the entry of air, thereby increasing the amount of air entering the engine. On this basis, engine performance tests were carried out on two engines installed with each type of throttle. Performance test results show that, under the same power and torque output, the economy of the engine was enhanced by the vortex throttle. The results of simulation analysis and performance tests show that the vortex throttle created a swirling motion, which increases the amount of intake air to improve engine performance.

Experimental Study of Gas Flow and Combustion in Biogas Generators

“…Therefore, biogas is considered a good, clean fuel. Biogas is mainly composed of methane and carbon dioxide gas, and also contains a small amount of nitrogen, hydrogen, oxygen, and hydrogen sulfide, etc [6][7][8].…”