CFD Analysis of High Velocity P/V Valve Movement Depending on Pressure Change

• Published in: AETA 2016: Recent Advances in Electrical Engineering and Related Sciences Vol. 415; pp. 34 - 42
• Main Authors: Soo, Kim Kwang, Ko, Jae-Hyun, gyu, Heo Seong, Jae-Hyoun, Park, Hwan, Kim Jung, Young-Han, Kim, Il-Do, Na, Dae-Chul, Hwang
• Format: Book Chapter
• Language: English
• Published: Switzerland Springer International Publishing AG 01.01.2017; Springer; Springer International Publishing
• Series: Lecture Notes in Electrical Engineering
• Subjects: Automatic control engineering; ENERGY TECHNOLOGY & ENGINEERING; High velocity; Power networks, systems, stations & plants; Safety; Valve
• ISBN: 3319509039; 9783319509037
• ISSN: 1876-1100; 1876-1119
• DOI: 10.1007/978-3-319-50904-4_4

High Velocity P/V valve is a equipment that must be installed on liquid cargo carriers, FPSO (Floating Production Storage and Offloading) and FSRU (Floating Storage Regasification Unit) to protect the tank from pressure and vacuum generated during loading/unloading of liquid cargo. As the temperature changes the VOCs (Volatile Organic Compounds) is generated in the tank. VOCs to increase the pressure inside the tank can lead to failure. In order to prevent this, by installing a safety valve, exhaust valve and relieve the internal pressure of the tank. In addition, when the flame of the external fire for discharging the explosive gas inside the tank there is a risk that a backfire into the tank. This paper represented the development of high velocity P/V valve design. Depending on the internal shape changing flow pattern, and thus the movement of the valve vary. We performed numerical analysis in order to see if the design model is suitable for the conditions. Case 1 is the initial valve opening condition, case 2 is the maximum valve opening condition, case 3 is considered valve oscillation depending on pressure change. We verified the design of high velocity P/V valve through the CFD results.