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Title: Rear face crossunder lines at B, D, DR, F, and H reactors -- Scope and justification

Abstract

The purpose of this report is to outline the preliminary design and provide justification for the installation of crossunder lines at B, D, DR, F, and H Reactors.

Authors:
Publication Date:
Research Org.:
General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10137935
Report Number(s):
HW-59900
ON: DE93010224
DOE Contract Number:
AC06-76RL01830
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 16 Jun 1959
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; HANFORD PRODUCTION REACTORS; REACTOR COOLING SYSTEMS; PIPES; VALVES; INSTALLATION; FLOW RATE; COST ESTIMATION; SCHEDULES; ENGINEERING DRAWINGS; 220600; RESEARCH, TEST, TRAINING, PRODUCTION, IRRADIATION, MATERIALS TESTING REACTORS

Citation Formats

Kempf, F.J.. Rear face crossunder lines at B, D, DR, F, and H reactors -- Scope and justification. United States: N. p., 1959. Web. doi:10.2172/10137935.
Kempf, F.J.. Rear face crossunder lines at B, D, DR, F, and H reactors -- Scope and justification. United States. doi:10.2172/10137935.
Kempf, F.J.. Tue . "Rear face crossunder lines at B, D, DR, F, and H reactors -- Scope and justification". United States. doi:10.2172/10137935. https://www.osti.gov/servlets/purl/10137935.
@article{osti_10137935,
title = {Rear face crossunder lines at B, D, DR, F, and H reactors -- Scope and justification},
author = {Kempf, F.J.},
abstractNote = {The purpose of this report is to outline the preliminary design and provide justification for the installation of crossunder lines at B, D, DR, F, and H Reactors.},
doi = {10.2172/10137935},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 16 00:00:00 EDT 1959},
month = {Tue Jun 16 00:00:00 EDT 1959}
}

Technical Report:

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  • Prior to the use of venturis on the front of the B, D, DR, P, and H Reactors, much of the pressure and velocity heads developed by the 190 process water pumps were used in overcoming built-in frictional losses in the system external to the process tubes. As Reactor Technology was gained, changes were continually taking place. Venturis replaced orifices installed during original construction. Hydraulically efficient front nozzles, front pigtails, front adaptors, and a second generation of front venturis were designed and installed as a part of Project CG-558. Process changes, such as eliminating upstream dummy charges, were also mademore » to reduce the energy dissipation due to frictional losses. The pressure drop across the active section of a fuel charge was reduced by the internal flow passage in the I&E elements. Little has been done to date, however, to reduce the pressure drops in the rear face fittings. This report is intended to review some of these still existent pressure restrictions and to discuss possible future courses of action.« less
  • It is the purpose of this document to describe the proposed modifications to the cooling water treatment process used in reactor areas B, D, F, DR and H.
  • This letter transmits the data from the 189-D Hydraulics Laboratory flow test on three CG-482 rear pigtails. The tests were run with a standard B, D, Dr and F rear nozzle and rear Parker fitting over the range of flows and temperatures anticipated for early CG-558 operation. The data from the test are given. All three pigtails gave essentially identical results. For comparison the results of previous tests with present rear pigtails are also plotted.
  • This document discusses a proposal that certain presently installed reactor process water outlet temperature data logging equipment in subject reactors to be replaced with new functionally simplified equipment of a more adequate design. The primary purpose of the proposed installation is to replace existing equipment which is obsolete and in three reactors is worn out to the point where the equipment is out of service frequently for periods of time up to 8 hours or more. The new equipment will provide reliable process tube temperature information for use in the functions of reactor control and product accountability. Based upon anticipatedmore » incremental production gains resulting from use of the new equipment, the amortization period for the project is calculated at 2.7 years.« less
  • This study proposes improvements in the process water piping adjacent to the front and rear faces of these reactors. This report covers the external piping of the reactors from the incoming valve pit to the inlets of the outgoing retention basins.