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Thermodynamic pump testing is a form of pump testing where only the temperature rise, power consumed, and differential pressure need to be measured to find the efficiency of a pump. These measurements are typically made with insertion temperature probes and pressure probes fitted to tapping points on the pump's inlet and outlet.〔, Advanced Thermodynamic Performance Measurements for pumps and pump systems, Malcolm Robertson, IMechE Seminar on Site Testing, London, June 2013.〕 From these measurements, the flow produced by a pump can be derived.〔BS ISO 5198:1999 Centrifugal, mixed flow and axial pumps - Code for Hydraulic performance tests - Precision Class.〕 The thermodynamic method was developed in the early 1960s, and since has been increasingly used. It is described in high precision hydraulic testing standards such as ISO 5198. The thermodynamic method is used for performance testing of pumps, flow meter calibration, system curve tests, and other applications. It is capable of achieving results with uncertainties of less than 1% in pump efficiency and less than 1.5% in flow〔(Thermodynamic performance testing and monitoring ) pumpindustry magazine, April 2013.〕 while being able to test piping configurations where other conventional pump testing methods cannot provide accurate results.〔(Toward Municipal Sector Conservation: A Pump Efficiency and Awareness Pilot Study ) Hydratek & Associates Inc, May 2013.〕 == History == The thermodynamic method was developed concurrently in the 1960s at the University of Glasgow and University of Strathclyde in Scotland, and the National Engineering Laboratory in France (Electricite de France) and Austin Whillier (Chamber of Mines, Johannesburg, South Africa). Whillier published a paper titled "Pump efficiency determination from temperature measurements" in the October 1967 edition of The South African Mechanical Engineer describing the method.〔ftp://140.98.193.80/uploads/pes/PowerAfrica2007/PowerAfrica-32-cattaeae.pdf.pdf〕 Since that time, the thermodynamic method has been rigorously verified in many instances by different companies, including:〔〔() Pump Efficiency Testing By Thermodynamic Method.〕 * Water Research Centre (UK) * National Engineering Laboratories (UK) * Central Electricity Generating Board (UK) * University of Exeter (UK) * Damstadt University (Germany) * ATAP〔() ATAP〕 - Yatesmeter (Canada) * Hydratek & Associates Inc. (Canada) * Flowserve * Sulzer * Weir * Ebara * KSB * SPP The thermodynamic pump testing method is now included in pump testing standards such as the BS ISO 5198: Centrifugal, mixed flow and axial pumps - Code for hydraulic performance tests - Precision Class.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Thermodynamic pump testing」の詳細全文を読む スポンサード リンク
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