CFD ANALYSES OF A TWO-STAGE NATURAL GAS PRESSURE REGULATOR

Mutlu Tekir, Engin Gedik, Erol Arcaklıoğlu, Murat Calapkulu, Mehmet Cem Kasap
1.616 452

Abstract


Pressure regulators are mechanical devices that control the motion of the machines or flow of fluids to meet specific standards. Service pressure regulators, that provide the pressure range in which end-user can use natural gas, have the capability of shut-off gas in unexpected conditions without endangering operating medium. Service pressure regulators reduce 4-6 bar upstream pressure to generally 21 mbar downstream pressure. In this study a two-stage pressure regulator has been designed, and flow characteristics of the regulator have been analyzed numerically by Ansys Fluent that runs based on finite volume technique. According to the results obtained from numerical study, optimum rate of orifice gaps of each stages in the regulator has been determined, and taking account of basic flow characteristics like parameters of pressure drop, velocity scatter, etc., results are presented in graphics and discussed in detail.


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References


Tekir, M., “Çift Kademeli Doğalgaz Basinç Regülatörünün Hesaplamalı Akışkanlar Dinamiği ile Sayısal Analizi”, Yüksek Lisans Tezi, Karabük Üniversitesi, Karabük, 1-102 (2015).

Lightfoot, D., “Fundamentals of Pressure Regulators”, American Meter Company (2009).

Samson AG, “Introduction to Self-Operated Regulators, L202 EN”, Mess-Und Regeltechnik (07/2000).

Del Toro, A., “Computational fluid dynamics analysis of butterfly valve performance factors”, Master’s Thesis, Utah State University, Logan, USA, 1-134 (2012).

Song, X., Wang, L., and Park, Y., “Fluid and structural analysis of large butterfly valve", AIP Conference Proceedings, 1052: 311-314 (2008).

Chaiworapuek, W., Champagne, J., El Haj em, M., and Kittichaikan, C., “An ünvestigation of the water flow past the buttery valve", AIP Conference Proceedings, 1225: 249-262 (2010).

Skousen, P., “Valve handbook”, NY: McGraw Hill, New York (2007).

Mane, P., Computational Study of Poppet Valves on Flow Fields, MSc. Thesis, Youngstown State University. (Dec, 2013)

Domagala, M., “CFD Analyses Of Pilot Operated Relief Valve”, Czasopismo Techniczne (03/05/2008).