#Orifice flow meter calculation iso
There was a significant difference in the calculation of expansion factor using ISO 5167 2003, which resulted in a significant mass flow variation between the two flow measurement standards. A comparison between the ISO 5167 2003 and PTC 19.5-1971 flow calculations was also done. The 2004 equation was also found to be less sensitive to changes in pipe diameter and Reynolds number. Part 3 Natural Gas Applications The fundamental equation, as presented in Part 1, is not restricted to a specific fluid or system of units. In particular orifice plates, plate holders, sensing taps, meter tubes and flow conditioners are discussed. For a diameter ratio, β range of 0.4 to 0.7, the updated 2004 equation for discharge coefficient provides a relatively small change over the 1971 equation. Mechanical specifications are presented for the orifice meter. The equations for mass flow and expansion remained unchanged between versions however a variation in results exists between orifice discharge coefficients. Comparisons were made between mass flow, expansion factor and orifice discharge coefficient calculations. Equations for the current system are referenced from Flow Meter Applications – 6 th Edition 1971 and updated equations are referenced from Flow measurement ASME PTC 19.5-2004. This paper presents a comparison between existing flow calculations that are currently in use by the authors’ company in its Test Data Reduction System (TDRS) and the latest ASME flow measurement standard. Journal of Verification, Validation and Uncertainty Quantification.Journal of Thermal Science and Engineering Applications.Journal of Offshore Mechanics and Arctic Engineering.Journal of Nuclear Engineering and Radiation Science.Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems.Journal of Nanotechnology in Engineering and Medicine.Journal of Micro and Nano-Manufacturing.Journal of Manufacturing Science and Engineering.Journal of Engineering Materials and Technology.Journal of Engineering for Sustainable Buildings and Cities.Journal of Engineering for Gas Turbines and Power.Journal of Engineering and Science in Medical Diagnostics and Therapy.Journal of Electrochemical Energy Conversion and Storage.Journal of Dynamic Systems, Measurement, and Control.Journal of Computing and Information Science in Engineering.Journal of Computational and Nonlinear Dynamics.Journal of Autonomous Vehicles and Systems.ASME Letters in Dynamic Systems and Control.ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering.Mechanical Engineering Magazine Select Articles.