Experimental studies of heat transfer by slot jet and single/triple row of round jets impinging on semicylindrical concave surfaces

Journal Article · Sat Oct 01 00:00:00 EDT 1994 · Heat Transfer Engineering

DOI:https://doi.org/10.1080/01457639408939838· OSTI ID:63020

Brahma, R K; Pradhan, B ^[1]; Padhy, I ^[2]

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1. Indian Inst. of Technology, Kharagpur (India). Mechanical Engineering Dept.
2. University College of Engineering, Burla (India). Mechanical Engineering Dept.

Experimental results for average heat transfer coefficients have been obtained for a slot jet, a single row of round jets, and a triple row of round jets impinging onto a concave semicylindrical surface. Average Nusselt numbers have been expressed as functions of Reynolds number, Prandtl number, and non-dimensional geometric parameters of jet-target configuration. One of the major applications of jet impingement cooling is in gas turbines. Gas turbine cooling systems need to be designed for turbine blades, vanes, end walls, shrouds, and other components to meet metallurgical temperature limits. A few of the important research publications in this field are mentioned here.

• Sponsoring Organization: USDOE
• OSTI ID: 63020
• Journal Information: Heat Transfer Engineering, Journal Name: Heat Transfer Engineering Journal Issue: 4 Vol. 15; ISSN 0145-7632; ISSN HTEND2
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
COOLING
IMPINGEMENT
JETS
THERMAL CONDUCTION
TURBINE BLADES