A High Heat Flux Flow Boiling Apparatus for the Study of Cooling Effectiveness
Abstract
Backside water cooling is used extensively to transfer heat from critical elements in high heat flux devices such as hypersonic test facilities and nuclear reactors. In such devices, efficient cooling is accomplished with high heat transfer coefficients resulting from the transition of the coolant from single phase convection to nucleate boiling at higher heat flux. Analytical modeling of the heat-transfer mechanisms for the design of complex configurations becomes difficult in the boiling regime, especially at the critical heat flux (CHF) condition. Experimental investigation of the cooling process can provide the means to study the heat-transfer mechanisms, evaluate parametric trends, and develop working correlations for the cooling configuration of interest. A flow boiling apparatus, called the High Temperature Wall Laboratory (HTWL), has been developed at the USAF/Arnold Engineering Development Center (AEDC) to perform experimental investigation of the cooling processes encountered in high-pressure, electric arc heater facilities. A summary of the development and operation of the apparatus and a discussion of initial experimental work using the apparatus are contained in this report.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1995
- Accession Number
- ADA302999
Entities
People
- G. R. Beitel
Organizations
- Arnold Engineering Development Complex