OS4-4 常圧タービン(APT)の試作とその評価(OS4 省エネルギー・小型分散電源・コジェネ技術,分散と集中の共存)

概要

論文の詳細を見る
This research seeks to propose an atmospheric pressure turbine (APT), based on the Inverted Brayton Cycle, which puts new, distributed power generation technology to practical use by using various gases at normal pressures and high temperature, from industrial furnaces, waste gasification furnaces, gas turbines, and fuel cells which work at high temperatures, (ex. MCFC, SOFC) and attempts to save energy and reduce CO_2. However, no research has been presented about the operation of a real APT. This paper describes an outline for the results of a trial run, as well as the production of an APT prototype. The simulation results show that a 30kW system has a generator end efficiency (LHV) of about 32%, which is comparable to the performance of other equipment of a similar power rating, such as micro gas turbines. Based on this simulation result we build a 3-5kW APT prototype and operate. The result of this operation clarifies the basic characteristics of an APT including a performance of 8.7% thermal efficiency. An APT has a smaller specific power than a gas turbine. Accordingly, since its mechanical and dissipative heat losses are larger by comparison, it is important to reduce these losses to attain higher efficiency. Our APT was operated stably and the possibility can be used as a new system for distributed power generation using waste heat was confirmed.
社団法人日本機械学会の論文
2006-06-28