ORIFICE PLATES WITH DRAIN HOLES |
|---|
| Dr Michael Reader-Harris, David Addison |
- Abstract:
- This paper presents new data and shows that the existing drain-hole equation in ISO/TR 15377 is unsatisfactory: it leads to flowrate errors up to nearly 2% in magnitude. The data on drain holes have a surprisingly strong dependence on the circumferential location of the pressure tappings. However, a new analysis takes this into account and has produced a formula for d’, the corrected orifice diameter taking account of the drain hole. It is very desirable to amend ISO/TR 15377:2007.
- Keywords:
- orifice plates, drain holes, ISO/TR 15377
- Download:
- IMEKO-TC9-2013-088.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2013
- Title:
16th International Flow Measurement Conference
- Place:
- Paris, FRANCE
- Time:
- 24 September 2013 - 26 September 2013