The Selection Of Work Fluid And The Numerical Simulation Of Turbo-expander Used In Organic Rankine Cycle System

The paper do some Research on the low-temprature heat recovery by ore power generate system, as follows:Based on Organic Rankine cycle's Low-temperature thermal power generation heat analysis was done, and detected the construction of platform. Through matlab using the Physical properties of software's interfaces fabricated a thermodynamic cycle simulation system which include the smallest system and a heat recovery system. At the same time, we made a summary about refrigerant's requiring which is a important factor of Organic Rankine cycle from practice problems that we came across in the constructing of test bench.We compared ten refrigerants at 100℃, then concluded when we chose R142b, the comprehensive performance reached optimal. The program we fabricated can be used filter different temperature range's system refrigerant, then draw related factors charts. Organic Rankine cycle power generation's another important part is power machinery. On all kinds of power machinery, this article utilize the test detecting platform to modify air motor and scroll compressor, we also discussed automotive turbocharger's radial expansion turbine, then we integrated articles from many research institutions. Finally, we reach a conclusion that radial expansion turbine is the best selection about Organic Rankine cycle's Low-temperature thermal power generation. At last, our task team made value simulation to a radial expansion turbine's main structure include nozzle and blade which we prepared for our test platform, then we detected and optimized some parameters for we can obtain more discovery in the future.