Heat transfer from combustion gases to a single row of closely spaced tubes in a swirl crossflow Stirling engine heater

Journal Article · Mon Feb 01 04:00:00 EST 1982 · J. Heat Transfer; (United States)

DOI:https://doi.org/10.1115/1.3245068· OSTI ID:6537382

Bankston, C P; Back, L H

This paper describes an experimental program to determine the heat-transfer characteristics of a combustor and heat-exchange system in a hybrid solar receiver which utilizes a Stirling engine. The system consists of a swirl conbustor with a crossflow heat exchanger composed of a single row of 48 closely spaced curved tubes. In the present study, heat-transfer characteristics of the combustor/heat-exchanger system without a Stirling engine have been studied over a range of operating conditions and output levels using water as the working fluid. Non-dimensional heat-transfer coefficients based on total heat transfer have been obtained and are compared with available literature data. The results show significantly enhanced heat transfer for the present geometry and test conditions. Also, heat transfer along the length of the tubes is found to vary, the effect depending upon test condition.

• Research Organization: Energy and Materials Research Section, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
• OSTI ID: 6537382
• Journal Information: J. Heat Transfer; (United States), Journal Name: J. Heat Transfer; (United States) Vol. 104:1; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140704* -- Solar Thermal Power Systems-- Total Energy & Hybrid Systems-- (1980-)
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
COMBUSTION PRODUCTS
COMBUSTORS
CROSSFLOW SYSTEMS
ENERGY TRANSFER
ENGINES
FLUID FLOW
HEAT ENGINES
HEAT EXCHANGERS
HEAT TRANSFER
HYBRID SYSTEMS
SOLAR RECEIVERS
STIRLING ENGINES
TUBES
VORTEX FLOW