Engineering88 End of curve power requirement (to determine motor rating) End of curve power requirement (to determine motor rating) http://www.cheresources.com/invision/topic/11994-standby-centrifugal-pump-driver-sizing/ 지금까지 모터 Rating은 API 610 (11th ed.)의 7.1.4 항목에 따라서만 결정되는 줄 알았다. 하지만 역시 이는 minimum requirement일 뿐이었다. 그동안 Vendor 견적에 표시된 파워가 과도하다고 생각했던 것은 판단 미스. 최근 진행중인 프로젝트의 FEED에 다음과 같은 언급이 있었다. "Motor rating of pumps shall cover end of curve power on pump performa.. 2014. 11. 28. ASME B73.1 and ISO 5199 - A Quick Comparison ASME B73.1 and ISO 5199 - A Quick Comparison https://www.wilfley.com/blog/asme-b73-1-and-iso-5199-a-quick-comparison/ The widely referenced centrifugal pump standard known as ASME B73.1 can trace its origins as early as 1955, when efforts to develop chemical pump standards began. This later evolved into the American Voluntary Standard in 1962 and, in conjunction with a similar Hydraulic Institut.. 2014. 11. 19. FRP Pipies (GRP/GRE/GRV Pipes) http://www.adpf.ae/docs/about_frp.html About FRP Pipies RTRP stands for Reinforced Thermosetting Resin Pipe and FRP stands for Fiberglass Reinfoced Plastic Pipe. FRP is a composite material consisting of a thermosetting polymer, often a type of polyester, reinforced with glass or other fibers. Glass fibers provide strength and stiffness to a composite material. Different types of resins are used.. 2014. 11. 14. Pipe Roughness Pipe Roughness For all claculations of pressure drop, the following pipe roughness values should be used: Pipe Roughness for Typical Materials Material Roughness Carbon Steel (CS) - Process 0.05 mm Stainless Steel (SS) 0.05 mm Titanium and Cu-Ni 0.05 mm Glass Fiber Reinforced Pipe (GFRP) 0.005 mm Polyethylene, PVC 0.005 mm 2014. 9. 30. Priming System Sizing http://lynnengineeredsystems.com Priming System Sizing Proper sizing of a vacuum priming system is based on the required volume of air to be removed from the suction piping within the acceptable period of time. Sizing also depends on whether operation of the system is On Demand, where priming is done before each time a pump needs to start or Automatic systems that maintain a constant prime for i.. 2014. 8. 4. Priming System Selection http://lynnengineeredsystems.com Application Analysis Determining the proper system type and sizing for the application is the first step in selecting a vacuum priming system. Selecting the proper type of system depends upon the application requirements of the pump or pumps that require priming. There are two system types to consider, On-Demand priming or Automatic priming. Each system type is a.. 2014. 8. 4. 이전 1 ··· 4 5 6 7 8 9 10 ··· 15 다음 728x90 반응형
