SPECIFIC HEAT-MEASURING DEVICE AND SPECIFIC HEAT-MEASURING METHOD OF TEST BODY

• Main Author: SAEKI TOMOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 25.06.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To calculate an apparent specific heat and a heat accumulation amount of test bodies of various types during temperature rise and during temperature decrease.SOLUTION: A specific heat-measuring device 20 includes: heating plates 22 which sandwich a test body 21 to increase and decrease a temperature of the test body; and heat flow meters 23 adhered between the test body 21 and the heating plates 22. The test body 21 has a thermocouple 26 adhered between two pieces of a test body piece 21a. These are stored inside a constant temperature and humidity room 25. The heating plate 22 is connected to a constant temperature water tank 28 via piping 27. A circulation liquid is heated or cooled inside the constant temperature water tank 28 and circulated to the heating plate 22. An atmospheric temperature of the constant temperature and humidity room 25 is controlled to be the same as the temperature of the circulation liquid inside the constant temperature tank 28. An apparent specific heat of the test body 21 is calculated based on the temperature of the test body 21 measured by the thermocouple 26 and the heat flow rate measured by a heat flowmeter 23. 【課題】各種の試験体の昇温時と降温時における見かけの比熱や蓄熱量を算出できる。【解決手段】比熱測定装置２０は、試験体２１を挟んで温度を上昇及び降下させる加熱板２２と、試験体２１と加熱板２２との間に密着させた熱流計２３とを備えた。試験体２１は２枚の試験体片２１ａの間に熱電対２６を密着させた。これらを恒温恒湿室２５内に収容し、加熱板２２は配管２７を介して恒温水槽２８に接続し、循環液を恒温水槽２８内で加熱及び冷却して加熱板２２に循環させた。恒温恒湿室２５の雰囲気温度は恒温水槽２８内の循環液の温度と同一に制御する。熱電対２６で測定した試験体２１の温度と熱流計２３で測定した熱流量とに基づいて、試験体２１の見かけの比熱を算出する。【選択図】図１