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Title: The Thomas Recording Calorimeter
Author: G. m. Arnold
Source: 1936 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1936
Abstract: The purpose of this paper is to describe the operating principle and construction of the Thomas Recording Calorimeter. It made its appearance in 1921 when twelve instruments were built and installed in as many different gas plants. The instrument was very well received because it opened up new possibilities in the manufacture of gas by providing a continuous record of gas B.T.U. for closer control of plant operation. The fact that the record of heating value was in corrected B.T.U. and that the results were continuous and immediately available, gave the instrument many advantages over the old manual method of gas testing. In 1925 the Thomas Calorimeter was introduced into England where the first instruments were installed in the plant of London Gas Co. Ltd. It was not long before the instrument was recognized as a valuable aid In gas manufactin-e and its use extended to other gas companies. The Department of Scientific and Industrial Research of Great Britain, made an exhaustive investigation of the Thomas Calorimeter and published the results of their findings in Fuel Research Technica.1 Paper #20, dated 1927.




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