2000℃級ペブル床超高温熱交換器の開発

概要

論文の詳細を見る
Recently, experimental studies on closed cycle MHD power generation are being carried out as a promising topper generating cycle for gas turbine combined cycles. In closed cycle MHD, a working gas (argon or helium) should be heated up to about 2000℃ by combustion gas. Therefore, development of a 2000℃ class high temperature heat exchanger is required. A pebble bed regenerative heat exchanger was installed in the FUJI-1 test facility at Tokyo Institute of Technology, inhere maximum operating temperature has been limited to about 1850℃ due to use of Al_2O_3 pebbles. This paper describes the reconstruction work on this heat exchanger aiming at increasing its operative temperature up to about 2000℃. New brick and pebble materials, made of Y_2O_3 stabilized ZrO_2 have been developed for this reconstruction work. The reconstructed heat exchanger is successfully operated at a maximum temperature of about 2100℃.
一般社団法人日本機械学会の論文
1992-09-25