Abstract
ABSTRACT Rising energy costs and new environmental regulations are motivating operators to better measure and manage their utility flows, steam in particular. Steam is commonly used for process fluid heat exchange, space heating, and steam injection in the hydrocarbon industries. Accurate flow measurements are needed to maintain process efficiency, detect leaks, and account for consumption. Cost effectively ensuring high accuracy, repeatability, and reliability is a challenge, especially in outdoor applications in cold climates. Although vortex is a newer technology which has enjoyed great success, the most widely used technology for steam flow remains the differential pressure (dp) flowmeter, which uses a differential producer—for example, an orifice plate and a pressure transmitter. This article introduces new best practices for the dp flowmeter. These new practices have demonstrated improvements in reliability and turndown, at significantly lower initial capital and life cycle cost.
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