20.500.12556/RUL-143725 Correction for the temperature effects in a pVTt gas flow primary standard employing a dynamic method Primary standards in the field of gas flow rate metrology determine the change of mass in the system for a given collection time. Standards using the fixed volume volumetric method (pVTt) determine the mass by measuring the gas density inside a fixed volume. These standards usually use the static method of mass determination and rarely use the dynamic method as the gas temperature changes due to the density change. An analytical model predicting the temperature in a pVTt system was developed. The static and the dynamic methods were implemented, with the dynamic method including the temperature correction based on the model. The model was first validated using the pressure response during the flow rate measurement, followed by validation using a comparison between the measured flow rates using the static and dynamic methods. Based on the results, we believe that the corrected dynamic method is an alternative to the static method. primary standard flow rate pVTt dynamic method temperature correction model primarni etalon pretok pVTt dinamična metoda temperaturni korekcijski model true false true Angleški jezik Slovenski jezik Članek v reviji 2023-01-11 07:24:43 2023-01-11 07:24:46 2023-01-12 04:02:29 0000-00-00 00:00:00 2023 0 0 11 str. Vol. 207, art. 112375 Feb. 2023 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 2023-02-01 2025-02-15 532:536.5 0263-2241 10.1016/j.measurement.2022.112375 136867843 Zibert,_Bobovnik,_Kutin_-_Correction_for_the_temperature_effects_in_a_pVTt_gas_flow_primary_standard_employing_a_dynamic_method.pdf Zibert,_Bobovnik,_Kutin_-_Correction_for_the_temperature_effects_in_a_pVTt_gas_flow_primary_standard_employing_a_dynamic_method.pdf 1 035BAC10307510D9B24BB82897E8D7FB 8683fccc685ca5c5b41e3f4442a2448fc1e67d706c55e3c997afd7661d7ee269 2e15df1f-9179-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=165628 https://www.sciencedirect.com/science/article/pii/S0263224122015718 1 69c6a9ac-9178-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=165626 Fakulteta za strojništvo 0 0 0