Low Temperature Double Circulation Organic Working Fluid Screw Expander Turbine Power Generation System Experimental Study

Along with the technology innovating and society developing, people areincreasingly rely on energy. In recent years, due to the emergence of energy crisis,coupled with environment problems become the focus, so that renewable energyinstead of coal, oil and other primary energy become the inevitable trend of socialdevelopment. Trying to improve energy efficiency and reduce fossil fuel combustion,is placed in current society problems needed to solve. Under this premise, the lowtemperature organic working fluid double screw expander cycle turbine powergeneration technology come into being. The technology is committed through the useof low-grade organic working fluid absorbs heat, and then convert it into high qualityenergy, to achieve full utilization of energy.Based on the analysis of the previous experiment existing problems, in this study,through self-built experimental platform and using a set of torque measuring devicesreplace the conventional generator and network equipment, transformed into a newkind of low power system. The new generation system is not to pursue a high poweroutput or high screw machine efficiency, but to explore the existing conventionalpower generation system unsolved problems, such as the conditions under which isthe optimal grid and the initial amount of power consumption impact on the outputpower of the entire system at different heat source temperature conditions beforegrid-connected. As a result of using eddy current brake as a load device, not onlyeliminates the power generation and network and related equipment, but also makingthe research deeply, and then reveals the inner relationship between the initial torqueand running torque, speed and torque.Meanwhile, in the course of the experiment, due to improved originalexperimental research methods, thereby enabling the contents of the study to beenriched. Measurement data is more conducive to analysis the thermal systemstransforming inter mechanism and external mechanical defects, which provide strongevidence to determine the optimum operating parameters and crew match betweencomponents.