Importance

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Abstract

In a steam flow line that is delivering reduced quality steam, there is a method and/or system for determining the quality. It includes the steps of flowing quality steam through a first flow restriction, and mixing a measured quantity of water with the steam, downstream from the restriction. It also includes flowing the mixture through a second flow restriction. Then, by measuring pressures and temperatures, the quality of the steam at the second flow restriction may be calculated. Where the pressure drop across the second flow restriction is very small compared to the supply line pressure, the quality of the steam downstream is essentially the same, and thus determined.

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First Claim