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The selection of pumps and valves for an optimum system performance

Technical Report:

Abstract

This report summarizes basic reference information for system engineers. Explanation on friction loss in pipes and graphical and tabulated design informations are presented for engineers` use in everyday design work. Since pumps and valves are the most important components, selection method and their relations with systems are emphasized. For pumps, basic theory is briefly presented first, followed by their relation with the systems. Seismic requirement for pump is discussed since most pumps installed in NSSS are designed in accordance with ASME Code, which requires the pump to be seismically qualified. Minimum flow line required to protect pump from overheating when the pump experiences shutoff head, is also discussed. Since most of the pumps are driven by motor, some knowledge on the motor is required for system designer. Protection method, starting method, and relation with system is presented. For valves, basic functions and configurations are summarized. Since flow medium of NSSS valves and pumps is boric acid the basic construction material is austenitic stainless steel. Valve seat material is Stellite hardfaced austenitic stainless steel. Cobalt 60 with long half life is produced when Cobalt 59 from Stellite migrates to Reactor Coolant Pressure Boundary. Valve manufacturers are investigating new substitutes. Test result  More>>
Authors:
Bae, Yoon Yeong [1] 
  1. Korea Atomic Energy Res. Inst., Taejon (Korea, Republic of)
Publication Date:
May 01, 1993
Product Type:
Technical Report
Report Number:
KAERI/AR-371/93
Reference Number:
SCA: 220200; PA: AIX-25:006520; EDB-94:018037; ERA-19:006653; NTS-94:014862; SN: 94001126470
Resource Relation:
Other Information: PBD: May 1993
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; PUMPS; FLUID FLOW; DESIGN; VALVES; NUCLEAR POWER PLANTS; FRICTION FACTOR; HYDRAULICS; MOTORS; OPTIMIZATION; PRESSURE DROP; 220200; COMPONENTS AND ACCESSORIES
OSTI ID:
10115611
Research Organizations:
Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE94610777; TRN: KR9300170006520
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
119 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Bae, Yoon Yeong. The selection of pumps and valves for an optimum system performance. Korea, Republic of: N. p., 1993. Web.
Bae, Yoon Yeong. The selection of pumps and valves for an optimum system performance. Korea, Republic of.
Bae, Yoon Yeong. 1993. "The selection of pumps and valves for an optimum system performance." Korea, Republic of.
@misc{etde_10115611,
title = {The selection of pumps and valves for an optimum system performance}
author = {Bae, Yoon Yeong}
abstractNote = {This report summarizes basic reference information for system engineers. Explanation on friction loss in pipes and graphical and tabulated design informations are presented for engineers` use in everyday design work. Since pumps and valves are the most important components, selection method and their relations with systems are emphasized. For pumps, basic theory is briefly presented first, followed by their relation with the systems. Seismic requirement for pump is discussed since most pumps installed in NSSS are designed in accordance with ASME Code, which requires the pump to be seismically qualified. Minimum flow line required to protect pump from overheating when the pump experiences shutoff head, is also discussed. Since most of the pumps are driven by motor, some knowledge on the motor is required for system designer. Protection method, starting method, and relation with system is presented. For valves, basic functions and configurations are summarized. Since flow medium of NSSS valves and pumps is boric acid the basic construction material is austenitic stainless steel. Valve seat material is Stellite hardfaced austenitic stainless steel. Cobalt 60 with long half life is produced when Cobalt 59 from Stellite migrates to Reactor Coolant Pressure Boundary. Valve manufacturers are investigating new substitutes. Test result for the new material from Anchor/Darling is presented. Factor which affects valve selection is cavitation. Since valve performance assurance and system performance are largely impacted by this single factor, it is discussed. The trim determines control valve performance. Relation between trim and flow characteristic is explained. Flowchart for valve selection is presented. Finally, an example of pump and valve selection for the boiler feedwater system is presented, which reminds system designer that economic consideration must be included in system design. (Author).}
place = {Korea, Republic of}
year = {1993}
month = {May}
}