@article{oai:kitami-it.repo.nii.ac.jp:00006477,
 author = {馬場, 弘 and 金山, 公夫},
 issue = {1},
 journal = {北見工業大学研究報告},
 month = {Oct},
 note = {application/pdf, The performance of five kinds of focusing type collectors with absorbing pipes of circular, rhombic, triangular, rectangular and parabolic sections was analyzed. With respect to the four kinds of absorbing pipes except the parabolic, the rate of received energy on the absorbing pipe to an incident energy on the reflector is nearly equal. Absorbed energy on the parabolic pipe closely approaches unity affected by the multiple reflections. 0n the other hand, the reradiation from an absorbing pipe is proportional to the pipe area so that the radiative heat loss on the circular pipe is minimum. In accordance with heat balance for absorbed energy and radiative energy, it was clarified that the parabolic absorbing pipe has the most effective performance. In view of heat transmission from the absorbing pipes to working fluid flowing within the pipe, the heat transmission efficiency of all collectors depends on the heat transfer coefficient, the heat transfer area of absorbing pipe and also the attained temperature of working fluid. When the temperature of working fluid is high, a productive value of the heat transfer coefficient by the heat transfer area is smaller and the total efficiency is higher.},
 pages = {25--37},
 title = {集光型集熱器の受熱管形状と集熱効率},
 volume = {11},
 year = {1979}
}