Optimal Design And Failure Analysis Of Heat Transfer For Marine Gas Turbine Intercooler System

Intercooled Recuperated (ICR) gas turbine is developed on the basis of simple cycle gasturbine and become a kind of superior engine. It has very broad prospect of application, andcan markedly improve the dynamic properties of warships. The quality of intercooler systemis very important to the overall performance of ICR gas turbine. The key to develop ICR gasturbine is how to make the intercooler with compact structure, low flow resistance and highefficiency which won’t stop the gas turbine run safely when it fails.The main object of this paper is to optimize the design of marine gas turbine intercoolersystem and provide failure precaution for whatever may stop the gas turbine from runningsafely. Researches were done as follows:1) Introduce the background of marine gas turbine intercooler system development, thecurrent status of intercooler research at home and abroad. Point out the importance ofspeeding up the development of intercooler.2) Optimal design of the intercooler system. Based on one type of marine gas turbine, thispaper sets up design requirements for the intercooler system. Using the program designedwith the heat exchange calculation method, structure data were determined and gas turbineperformances were analyzed.3) Study the manufacture process of the heat exchanger. Make suggestions to avoidproduct flaws.4) Introduce the failure which may happen and focus on the influence of condensationcaused by over-cooled wet air. Precautions were designed.The results in this paper could be a guide for the optimum design and failure precaution of marine gas turbine intercooling heat exchanger.