Background:In response to the utilization of various medium-and low-temperature industrial waste heat at 100-300℃, the research team built a small organic Rankine cycle demonstration experimental platform with an output power of 3kW, and the platform works well. Based on experimental data, organic Rankine cycle system design software has been developed, which can carry out design calculations related to system performance such as the screening of working fluids, equipment selection, parameter optimization, and refrigerant charge volume of the organic Rankine cycle system based on actual engineering conditions. The expander is one of the key equipment in the organic Rankine cycle. Aiming at the performance research of working parts, a performance experimental platform for a scroll expander using compressed air as the working medium has been built, which can conduct experimental research on scroll expander or other small and medium-sized expander equipment; The CFD numerical analysis method is used to simulate and analyze the performance of the scroll expander, and the effects of different geometric structures and operating parameters on the performance of the scroll expander can be obtained. It is necessary for the application of the scroll expansion airborne organic Rankine cycle system.

Energy-saving products:Organic Rankine cycle system experimental platform; small scroll expander experimental platform for organic Rankine cycle system; organic Rankine cycle system design software.

Related technologies:Organic Rankine cycle system design, scroll expander performance testing technology, CFD simulation technology of scroll expander working process

Technological innovation:An organic Rankine cycle system experimental platform was designed and built. The experimental platform runs smoothly and can realize operating adjustments under varying working conditions; the built scroll expander performance experimental platform can realize performance experimental tests over a wide range, providing guidance for the operation of scroll expander in the ORC system.

Energy saving effect:Using low-grade waste heat resources, the energy saving effect is significant. Experimental test results show that the system cycle efficiency is about 5%.