Computations of cooler discharge from heat-stressed channels

Abstract

The fundamentals of a procedure for a discharge of a two-phase heat carrier from the drain channels of heat exchangers that heat up to the temperatures exceeding the boiling point of the heat carrier are presented. The procedure considers a state of aggregation of the heat carrier and a configuration of the drain hole when dam-aging the drain holes. The parametric analysis determining the form of the drain hole is carried out by the analyt-ical formula that approximate the tabular data with a high degree of accuracy. The procedure was used for a numerical study of the thermohydrodynamic parameters of the cooler while draining the heat-stressed cooling channels of the specific liquid-rocket engine. The study results demonstrated that the procedure reflects accurately the physic processes through a cut-off drain cavity of the oxidizer passage with engine stopping. The time characteristics derived are close to the characteristics measured during the flight tests of a simulated object. The method of division of a computational domain and the major computational elements for digitizing a simulated object can simulate any heat exchanger. The procedure can be used to compute the discharge of a two-phase fluid through heat exchangers for a wide range of the power plants with a various degree of complexity.

Authors and Affiliations

Ye. Tokareva

Keywords

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  • EP ID EP352403
  • DOI -
  • Views 94
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How To Cite

Ye. Tokareva (2016). Computations of cooler discharge from heat-stressed channels. Технічна механіка, Техническая механика, Technical Mechanics, 2(2), 43-54. https://europub.co.uk/articles/-A-352403