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http://dx.doi.org/10.17664/ksgee.2017.13.3.009

A Study of Flow Characteristics in Pressure Independent Control Valve for Hydronic System  

Min, Joon-Ki (Dept. of Architecture Engineering, Kyung Hee University)
Won, Bo-Young (Dept. of Mechanical Engineering, Kyung Hee University)
Jeong, Shin-Kyu (Dept. of Mechanical Engineering, Kyung Hee University)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.13, no.3, 2017 , pp. 9-15 More about this Journal
Abstract
In this study, set values of PICV(Pressure Independent Control Valve) were simulated according to the pressure distribution and velocity. The higher the set value and the open rate, as the lower the pressure in the neck. On the contrary, the lower the set value and open rate, as the higher the pressure in the neck. When the set value was small, the pressure was distributed sufficiently and confirmed that the pressure was generated by the VOF, confirming that it could generate a vapor pressure. When the set value 100 %, the lower corn open rate of the differential pressure was 46 % to 29 %, set value 100 % was 29 % to 19 %, and set value 6 % was 12 % to 6 % for the lower corn open rate percentile, it was limited to within 50 %. Thus, the results of this study on the correlation between open rate and differential pressure of the set value of the PICV will be beneficial to improve performance of flow control valves and contribute to their efficient operation used for a hydronic system.
Keywords
Pressure Independent Control Valve; Hydronic System; CFD; Volume of Vapor;
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Times Cited By KSCI : 3  (Citation Analysis)
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