United States Nuclear Regulatory Commission - Protecting People and the Environment

Rod Bundle Heat Transfer Test Facility Description (NUREG/CR-6976)

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Publication Information

Manuscript Completed: April 2008
Date Published: July 2010

Prepared by:
E.R. Rosal, T.F. Lin, I.S. McClellan, R.C. Brewer

The Pennsylvania State University
University Park, PA 16802

K. Tien, NRC Project Manager

Prepared for:
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington DC 20555-0001

NRC Job Code W6855

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Abstract

This report describes the Rod Bundle Heat Transfer (RBHT) Test Facility which is designed to conduct systematic separate effects tests under well-controlled laboratory conditions in order to generate fundamental rod bundle heat transfer data from single phase cooling tests, low flow boiling tests, steam flow tests with and without droplets injection, inverted annular film boiling tests, and dispersed flow film boiling heat transfer tests in rod bundles. The facility is capable of operating in steady state forced and variable reflood modes covering a wide range of flow and heat transfer conditions at pressures from 0.134 to 0.402 MPa (20 to 60 psia). The RBHT Test Facility is a unique facility which will provide new data for the fundamental development of best estimate computer codes to enhance our understanding of the complex two-phase phenomena, which are modeled for the reflood transient.

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