船体の熱貫流率に関する二,三の考察

概要

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Heat-transfer coefficients of cargotanks are the basic values for estimating heat losses from cargotanks and determining required capacity of heating plant. In recent years, with the development in experimental techniques, tests on actual ships became possible and five tests including one test in Japan were carried out since 1963. The reported test results seem to be fluctuated according to the variety of boundary conditions, characteristics of oil and so on. The author tried to analyse these data from a theoretical point of view and found that the actual phenomena could be analysed sufficiently and accurately. It was also found that the heat-transter at wall surface was seriously affected by rolling motion of ship. As the results, heat-transfer coefficients covering the worst conditions are estimated to be as follows: kcal/m^2h℃ Sides 17.0 Bottom 6.0 Internal bulkhead to empty wing tank 5.0 Deck 7.5
社団法人日本船舶海洋工学会の論文
1970-07-31