Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate Measurement
This work deals with measurement of natural gas flowrate and volume by means of pressure differential devices. The existing methods for calculation of Joule-Thomson coefficient to be applied in pressure differential flowmeters are analyzed in the paper. A new method which uses a simplified set of pa...
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| Language: | English |
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Lviv Polytechnic National University
2015-12-01
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| Series: | Energy Engineering and Control Systems |
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| Online Access: | https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-1-number-2-2015/simplified-method-calculation-joule-thomson |
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| author | Yevhen Pistun Fedir Matiko Oleh Masnyak |
| author_facet | Yevhen Pistun Fedir Matiko Oleh Masnyak |
| author_sort | Yevhen Pistun |
| collection | DOAJ |
| description | This work deals with measurement of natural gas flowrate and volume by means of pressure differential devices. The existing methods for calculation of Joule-Thomson coefficient to be applied in pressure differential flowmeters are analyzed in the paper. A new method which uses a simplified set of parameters of gas composition, namely the density at standard conditions, the molar content of nitrogen and carbon dioxide, is developed by the authors. This method provides the possibility to calculate the Joule-Thomson coefficient within the pressure range from 0.1 MPa to 15.0 MPa and the temperature range from 250 K to 350 K. It was defined that for natural gas with density at standard conditions up to 0.75 kg/m3 and contents of nitrogen and carbon dioxide up to 5 % of each component, the relative error of the values derived according to the new developed method do not exceed 3.0 % in the specified ranges of temperature and pressure. The application of this method in calculators of flowrate and volume of natural gas will help to reduce the systematic error of flowrate and volume measurement caused by the distinction of gas temperature in the place of measurement downstream of primary device from gas temperature upstream of primary device. |
| format | Article |
| id | doaj-art-ccbd9fad04f84f1aac62333e5becee76 |
| institution | OA Journals |
| issn | 2411-8028 2415-7287 |
| language | English |
| publishDate | 2015-12-01 |
| publisher | Lviv Polytechnic National University |
| record_format | Article |
| series | Energy Engineering and Control Systems |
| spelling | doaj-art-ccbd9fad04f84f1aac62333e5becee762025-08-20T02:32:19ZengLviv Polytechnic National UniversityEnergy Engineering and Control Systems2411-80282415-72872015-12-011212713210.23939/jeecs2015.02.127Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate MeasurementYevhen Pistun0Fedir Matiko1Oleh Masnyak2Lviv Polytechnic National UniversityLviv Polytechnic National UniversityLviv Polytechnic National UniversityThis work deals with measurement of natural gas flowrate and volume by means of pressure differential devices. The existing methods for calculation of Joule-Thomson coefficient to be applied in pressure differential flowmeters are analyzed in the paper. A new method which uses a simplified set of parameters of gas composition, namely the density at standard conditions, the molar content of nitrogen and carbon dioxide, is developed by the authors. This method provides the possibility to calculate the Joule-Thomson coefficient within the pressure range from 0.1 MPa to 15.0 MPa and the temperature range from 250 K to 350 K. It was defined that for natural gas with density at standard conditions up to 0.75 kg/m3 and contents of nitrogen and carbon dioxide up to 5 % of each component, the relative error of the values derived according to the new developed method do not exceed 3.0 % in the specified ranges of temperature and pressure. The application of this method in calculators of flowrate and volume of natural gas will help to reduce the systematic error of flowrate and volume measurement caused by the distinction of gas temperature in the place of measurement downstream of primary device from gas temperature upstream of primary device.https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-1-number-2-2015/simplified-method-calculation-joule-thomsonjoule-thomson coefficientnatural gasmethods for calculationpressure differential flowmeterssystematic error |
| spellingShingle | Yevhen Pistun Fedir Matiko Oleh Masnyak Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate Measurement Energy Engineering and Control Systems joule-thomson coefficient natural gas methods for calculation pressure differential flowmeters systematic error |
| title | Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate Measurement |
| title_full | Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate Measurement |
| title_fullStr | Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate Measurement |
| title_full_unstemmed | Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate Measurement |
| title_short | Simplified Method for Calculation of the Joule-Thomson Coefficient at Natural Gas Flowrate Measurement |
| title_sort | simplified method for calculation of the joule thomson coefficient at natural gas flowrate measurement |
| topic | joule-thomson coefficient natural gas methods for calculation pressure differential flowmeters systematic error |
| url | https://science.lpnu.ua/jeecs/all-volumes-and-issues/volume-1-number-2-2015/simplified-method-calculation-joule-thomson |
| work_keys_str_mv | AT yevhenpistun simplifiedmethodforcalculationofthejoulethomsoncoefficientatnaturalgasflowratemeasurement AT fedirmatiko simplifiedmethodforcalculationofthejoulethomsoncoefficientatnaturalgasflowratemeasurement AT olehmasnyak simplifiedmethodforcalculationofthejoulethomsoncoefficientatnaturalgasflowratemeasurement |