This document specifies the geometry and method of use (installation and operating conditions) of orifice plates when they are inserted in a conduit running full to determine the flow rate of the fluid flowing in the conduit.
ISO 5167-2:2003 specifies the geometry and method of use (installation and operating conditions) of orifice plates when they are inserted in a conduit running full to determine the flow-rate of the fluid flowing in the conduit.
Iso 5167 2 Orifice Plates Pdf Download
ISO 5167-2:2003 is applicable to primary devices having an orifice plate used with flange pressure tappings, or with corner pressure tappings, or with D and D/2 pressure tappings. Other pressure tappings such as vena contracta and pipe tappings have been used with orifice plates but are not covered by ISO 5167-2:2003.
ISO 5167-2:2003 is applicable only to a flow which remains subsonic throughout the measuring section and where the fluid can be considered as single phase. It is not applicable to the measurement of pulsating flow. It does not cover the use of orifice plates in pipe sizes less than 50 mm or more than 1 000 mm, or for pipe Reynolds numbers below 5 000.
Abstract:The paper presents the results of the experimental and numerical analysis of a six-hole orifice flow meter. The experiments were performed on humid air in a 100 mm diameter duct. The aim of this research was to investigate the mass flow and pressure drop dependency in an orifice of a predetermined shape and to compare the results obtained with computational formulas recommended in the ISO 5167-2 standard for a single-hole orifice flow meter. The experiments and calculations were performed on several multi-hole orifice geometries with different contraction coefficient in a wide range of Reynolds numbers. The pressure was probed immediately upstream and downstream of the orifice. The flow coefficient determined for the six-hole orifice flow meter investigated was compared with the flow coefficient of conventional single-hole orifice with the same contraction coefficient. The results from computational formulas for single-hole orifice from ISO 5167 are also included in the paper. During some experiments, an obstacle has been introduced in the duct at variable distance upstream from the orifice. The effect of the thus generated velocity field disturbance on the measured pressure drop was then investigated. Numerical simulation of the flow with the presence of the obstacle was also performed and compared with experimental data.Keywords: multi-hole orifice; flow measurement; numerical simulation; pressure drop
Orifice plates are still the most widely used type of flowmeter in the world today. They offer significant cost benefits over other types of flowmeter, especially in larger line sizes, and have proved to be rugged, effective and reliable over many years. Where a need exists for a rugged, cost effective flowmeter which has a low installation cost and a turndown of not more than 4:1, the orifice plate continues to offer a very competitive solution.
The relationship between the rate of flow and the differential pressure produced is very well understood and is fully covered by comprehensive national standards. The relevant standards are BS 1042 and the equivalent ISO 5167. One of the principle advantages of orifice plates manufactured and installed following these standards is that they do not require calibration. This means that orifice plates are very cost effective on larger line sizes.
BS 1042-1-1.2 standard specifies the measurement of fluid flow in closed conduits. Pressure differential devices. Specification for square-edged orifice plates and nozzles (with drain holes, in pipes below 50 mm diameter, as inlet and outlet devices) and other orifice plates.
Geometry and method of use for conical entrance orifice plates, quarter circle orifice plates and eccentric orifices plates. Also square-edged orifice plates and nozzles outside the scope of BS 1042:Section 1.1.
ASME MFC-3M standard specifies the geometry and method of use (installation and flowing conditions) for orifice plates, nozzles, and Venturi tubes when they are inserted in a conduit running full, to determine the rate of the fluid flowing. It also gives necessary information for calculating flow rate and its associated uncertainty.
The following primary devices are covered in this Standard.. (a) orifice plates, which can be used with the following arrangements of pressure taps.. (1) flange pressure taps, (2) D and D/2 pressure taps, (3) corner pressure taps. (b) nozzles.. (1) ASME long radius nozzles. (c) Venturi tubes.. (1) classical Venturi tubes.
ISO 5167-2:2003 specifies the geometry and method of use (installation and operating conditions) of orifice plates when they are inserted in a conduit running full to determine the flow-rate of the fluid flowing in the conduit.It also provides background information for calculating the flow-rate and is applicable in conjunction with the requirements given in ISO 5167-1.ISO 5167-2:2003 is applicable to primary devices having an orifice plate used with flange pressure tappings, or with corner pressure tappings, or with D and D/2 pressure tappings. Other pressure tappings such as vena contracta and pipe tappings have been used with orifice plates but are not covered by ISO 5167-2:2003. ISO 5167-2:2003 is applicable only to a flow which remains subsonic throughout the measuring section and where the fluid can be considered as single phase. It is not applicable to the measurement of pulsating flow. It does not cover the use of orifice plates in pipe sizes less than 50 mm or more than 1 000 mm, or for pipe Reynolds numbers below 5 000.
ISO-5167 is a free trial software published in the Vertical Market Apps list of programs, part of Business.This Vertical Market Apps program is available in English. It was last updated on 20 January, 2023. ISO-5167 is compatible with the following operating systems: Windows.The company that develops ISO-5167 is NorCraft. The latest version released by its developer is 11.06. This version was rated by 37 users of our site and has an average rating of 4.5.The download we have available for ISO-5167 has a file size of 4.24 MB. Just click the green Download button above to start the downloading process. The program is listed on our website since 2011-01-06 and was downloaded 4080 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded software with your antivirus. Your antivirus may detect the ISO-5167 as malware if the download link is broken.How to install ISO-5167 on your Windows device:Click on the Download button on our website. This will start the download from the website of the developer.
Once the ISO-5167 is downloaded click on it to start the setup process (assuming you are on a desktop computer).
When the installation is finished you should be able to see and run the program.
This module contains correlations, standards, and solvers for orifice platesand other flow metering devices. Both permanent and measured pressure dropis included, and models work for both liquids and gases. A number ofnon-standard devices are included, as well as limited two-phase functionality.
Sea wave energy generators or converters (WECs) have the potential to become a viable technology for clean, renewable energy production. Among the WEC technologies, the oscillating water columns (OWCs) are the most common WEC devices studied. These have been studied and developed over many years. Multi-chamber oscillating water columns (MC-OWC) have the potential to have a higher energy conversion when extracting energy in mixed sea states than single-chamber devices. In the work reported in this paper, physical experiments are carried under regular wave conditions to test the wave power extraction of a fixed MC-OWC small-scale model. The Power Take-Off (PTO) of the device is simulated using orifice plates. The flow characteristics through these orifices are pre-calibrated such that the extracted power can be obtained only using the pressure measurement. Wave condition effects on the damping of the PTO of the device power extraction are addressed. The test results illustrate that the PTO system damping is critical and affects device performance.
The airflow rate through the PTO was calculated using Eq. (1). The three different orifice plates used in this test to introduce different damping factors were characterized by the orifice opening ratio (Ri), which is defined as the opening area of the orifice (A2) divided by the cross-sectional area of the OWC chamber (A1) as summarised in Table 2. 2ff7e9595c
Comentarios