Parr, SW (English spelling) ParrSW

Japanese: Parr,S.W.(英語表記)ParrSW
Parr, SW (English spelling) ParrSW

...In this calorimeter, the sample is completely burned in high-pressure oxygen in a sealed pressure-resistant container (bomb), the heat is transferred to the water surrounding the bomb, and the amount of heat is measured from the temperature rise and mass of the water. The bomb for the bomb calorimeter was invented by T. Andrews in 1848, and has since been improved by PEM Berthelot, SW Parr, and others to the present day. Currently, 18-8 chromium-nickel steel, Monel metal, Inconel, etc. are used as materials to withstand pressure changes during combustion and corrosion by acids produced by the combustion of sulfur and other components in the sample. ...

*Some of the terminology that mentions "Parr, SW" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この熱量計は,試料を密閉耐圧容器(ボンベ)中で高圧酸素のもとで完全燃焼し,その熱をボンベの周囲の水に伝え,水の温度上昇と質量から熱量を測定する。ボンベ熱量計のボンベは1848年アンドルーズT.Andrewsにより考案されてからベルトロP.E.M.Berthelot,パールS.W.Parrなどの改良を経て現今に至っている。現在ではその材質として18‐8クロムニッケル鋼,モネルメタル,インコネルなどが用いられ,燃焼時の変圧および試料中の硫黄分などの燃焼によって生成する酸の腐食に耐えるよう考慮されている。…

※「Parr,S.W.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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