GOOD PRACTICE GUIDE AN INTRODUCTION TO （良好的实践指南介绍）.pdf

下载文档 降价啦

53
0
约3.13万字
约 13页
2017-08-06 发布于浙江
举报
版权申诉
保障服务

GOOD PRACTICE GUIDE AN INTRODUCTION TO （良好的实践指南介绍）.pdf

1、本文档共13页，可阅读全部内容。
2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

GOOD PRACTICE GUIDE AN INTRODUCTION TO （良好的实践指南介绍）

GOOD PRACTICE GUIDE AN INTRODUCTION TO FLOW METER INSTALLATION EFFECTS An Introductory Guide to Flow Meter Installation Effects The aim of this Good Practice Guide is to introduce the subject of installation effects. Every flow meter is subject to some kind of installation effect. A flow meter only stands a chance of living up to the manufacturer’s accuracy and uncertainty claims if it is installed correctly. Installation effects can be large or small but can be dramatically reduced if you give them a little consideration. Contents Foreword 2 1. What is an installation effect? 3 2. Fluid properties 3 3. How density and viscosity interact with flow 3 4. Flow regimes 4 5. Velocity profiles 4 6. Flow development 5 7. More distortions 6 8. Effects on specific flow meters 7 8.1 Differential pressure meters 7 8.2 Electromagnetic flow meters 8 8.3 Ultrasonic meters 8 8.4 Turbine flow meters 8 8.5 Vortex meters 9 8.6 Variable area meters 9 8.7 Positive displacement meters 9 8.8 Coriolis meters 9 8.9 Thermal mass meters 10 9. What can be done about installation effects? 10 10. Is there an alternative 10 11. Round up