| Energy is the basis and driving force of the development of human society. With theincreasing of energy requirements, the energy issue has become more and more prominent.With the rapid development of economy, China has been the largest energy consumingcountries in the world. Low utilization ratio leads to the environment problem. Ourgovernment realizes to revise industrial structure and develop the clean energy. The boats andships is a kind of vehicle which consumes huge energy. The waste heat recovery has formed ahot topic between the shipbuilding industry and the maritime field with the rise of oil prices.This paper studies the applications of the Organic Rankine Cycle(ORC)on the waste heatrecovery of heavy-duty marine diesel engine. It mainly consists of four parts:The first part elaborates the status and application and introduces the key techniques ofORC.This paper picks out eight kinds of organic fluid as the alternative working fluid, anddescribes characteristics of the thermal and physical properties.The second part designs the waste heat recovery and generation system of ORCcombined with exhaust heat characteristics of MAN6S50MC-C8.1-TII heavy-duty marinediesel engine. What’s more, the parameter of the system is optimized by Simulink.The third part not only designs the marine diesel engine jacket cooling water heatrecovery and power generation system, but also compiles cycle calculation program with theRefprop software. Then the paper determines the best parameters of circulatory system byreasonable verifications and optimizations of the loop analysis. Finally, the co-generationsystem of exhaust and jacket cooling water waste heat has been built. The part designs andcalculates the organic working fluid turbine and power turbine.The forth part models the3D blades of organic working fluid turbine and calculates theflow field with the NUMECA including steady and unsteady numerical simulation. Finally,the flow field has been analyzed in the last part. |
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