2026-03-05T11:02:48Z https://kitami-it.repo.nii.ac.jp/oai

oai:kitami-it.repo.nii.ac.jp:00006213 2025-01-30T05:08:27Z 7:15:22

Studies on the Emissivity of Radiation Surface of Radiant Heating Systems 暖房放熱面のふく射率に関する基礎研究 金山, 公夫 31788 application/pdf The power of radiant heating systems is affected by the emissivity of the radiation surface. The author, at the temperature 100 to 250℃, carried out measurements of the emissivity of the radiation surface materials and comparisons between the measured values and the theoretical ones　derived by E.M. Sparrow and others. The obtained results are as follows ; Bricks and heat-resisting paints, the values of whose emissivity are large, are more profitable than metals for radiation surface. It is an effective method of raising the emissivity to increase surface roughness. departmental bulletin paper 北見工業大学 1968-03 application/pdf 北見工業大学研究報告 2 2 303 318 https://kitami-it.repo.nii.ac.jp/record/6213/files/2-2-14.pdf https://kitami-it.repo.nii.ac.jp/records/6213 jpn