報告書番号

281046

タイトル（和文）

高温ガスタービン翼候補材の熱物性（その３）─超高温熱物性測定装置の開発と標準試料による実験検討─

タイトル（英文）

THERMAL PROPERTIES OF PROPOSED MATERIALS FORHIGH TEMPERATURE GAS TURBINE (3) -NEWLY FABRICATED MEASUREMENT APPARATUS AND RESULTS FOR STANDARD TEST PIECES-

概要 （図表や脚注は「報告書全文」に掲載しております）

本報告は高温での固体の熱物性値をあきらかにするため試作した「超高温熱物性測定装置」を用い，その概要を述べるとともに，１．標準試料による熱拡散率測定精度の検討，２．比熱測定法の検討，３．温度測定法の検討等について室温から１８００Ｋの範囲における実験的検討を行ったものである。

概要 （英文）

WHILE THE EXISTING OIL-FIRED CONVENTIONAL STEAM POWER PLANTS ARE ASSIGNED TO ABOUT 70% OF WHOLE POWER GENERATING CAPACITY IN RECENT JAPAN,AN ADVANCED HIGH TEMPERATURE GAS TURBINE SYSTEM,THE INLET TEMPERATURE OF WHICH IS UP TO 1500 DEGREE(C) IS BEING RESEARCHED AND DEVELOPED UNDER THE NATION-WIDE PROGRAM FOR FURTHER ENERGY CONSERVATION.HOWEVER,FEW RELIABLE DATA OF THERMAL PROPERTIES INDISPENSABLE TO DESIGN AND ANALYSIS CAN BE FOUND ESPESIALLY IN THE HIGH TEMPERATURE RANGE. THIS REPORT DESCRIBES THE RESULT OF MEASUREMENT SYSTEM AND WORK FOR THERMOPHYSICAL PROPERTIES OF SOLID MATERIAL UNDER THE HIGH TEMPERATURE CONDITION.THE CONCLUSION IS ROUGHLY AS FOLLOWS;(1)OUTLINE OF NEWLY FABRICATED MEASUREMENT APPARATUS. MEASURING TEMPERATURE RANGE OF THIS APPARATUS, HIGH TEMPERATURE THERMAL PROPERTIES MEASUREMENT APPARATUS WASDESIGNED TO MEASURE FROM ROOM TEMPERATURE TO 2300K,AND WORKS OF MEASUREMENT AND ANALYSIS ARE AUTOMATICALLY CARRIED OUT (2)MEASURING RESULT OFTHERMOPHYSICAL PROPERTIES FOR STANDERD TEST PEICES. THERMAL DIFFISIVITY AND SPECIFIC HEAT WERE MEASURED BY USING IRON AND PLATINUM OF HIGH PURITY STANDARD TEST PIECES.IN THIS RESULTS,1800K ON THE THERMAL DIFFISIVITY AND 1470K ON SPECIFIC HEAT ARE UPPER LIMIT OF RELIABLE MEASUREMENT UNDER PRESENT CONDITION. (3)EXAMINATION OF TEMPERATURE SENSER INFRARED THERMOMETER IS HOPEFUL SENSER FOR VARIATION OF TEMPERATURE,BUT IT IS DIFFICULT TO USE ON THIS APPARATUS WITHOUT SOLVING THE PROBLEM AT RADIATION HEAT LOSS OR HIGH SENSIBILITY MEASUREMENT TECHNIQUE AS COMPARED WITHTHE RMO-COUPLE.

報告者

キーワード