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6256160 
Book/Book Chapter 
- Study on Heat Transfer Between Gas Flame and Plate During Line-Heating Process 
Hashimoto, K; Matsuoka, K; Osawa, N; Sawamura, J; Shinkai, N; Tomita, Y 
2001 
Elsevier Science Ltd 
Oxford 
Practical Design of Ships and Other Floating Structures 
389-396 
Publisher Summary In this chapter, the transient 3-dimensional temperature distribution of the gas flame of the spot heating experiment using a small power methane torch is measured by a laser induced fluorescence (LIF) measurement system. The distributions of plate heating face temperature and heat flux during the spot heating experiment using a high power oxyacetylene line heating torch are calculated by inverse heat conduction analysis. The thermal-flow field within the combustion flame remains almost unchanged regardless of the temperature increase in the steel plate. A new hypothesis on the heat transfer during line heating process is built up based on the result of the LIF experiment. This hypothesis is that the distributions of gas temperature near plate surface and local heat transfer coefficient depend only on the distance from the torch. For the spot heating experiment using a high power line heating torch, the measured back face plate temperature agree well with the calculated ones that are derived from the plate heating face temperature and heat flux estimated by inverse heat conduction analysis. This result shows the accuracy of the inverse analysis. 
Zhou, Guo-Jun