Reducing pressure loss of large diameter check valves
Journal Article
·
· Pipeline and Gas Journal
OSTI ID:536517
Transcend Inc., a consulting firm that specializes in the use of computer simulation to optimize existing equipment and system designs, was approached by Mannesmann Demag AG, Moenchengladbach, Germany to optimize the design of its DRV-B check valve. In one of the first applications of Computational Fluid Dynamics (CFD) technology to valve design, the pressure loss coefficient (K) of the DRV-B valve was lowered to 0.40--0.50 for valve sizes NPS48--NPS12, the lowest possible level for this type of valve. The flow efficiency is three times better than that of the earlier design. As a result, the optimized Mannesmann Demag DRV-B check valve provides a dramatic reduction in operating cost, particularly in transmission service where natural gas is transported over long distances. The reduced pressure loss saves compressor fuel cost. For the optimized valve, the incremental compressor fuel cost is reduced to 1.5-times the capital cost of the valve calculated over a 20-year Life Cycle Cost (LCC) period.
- OSTI ID:
- 536517
- Journal Information:
- Pipeline and Gas Journal, Journal Name: Pipeline and Gas Journal Journal Issue: 9 Vol. 224; ISSN PLGJAT; ISSN 0032-0188
- Country of Publication:
- United States
- Language:
- English
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