@article{oai:kitami-it.repo.nii.ac.jp:00006744,
 author = {三木, 康臣 and 三治, 広明},
 issue = {2},
 journal = {北見工業大学研究報告},
 month = {Mar},
 note = {application/pdf, A passive summer cooling and winter preheating technique which utilizes underground soil temperature, which stays respectively about 8℃ in summer and 10℃ in Winter, at a depth of 5 meters in Hokkaido. The final goal of this study is to supply basic data for the design of underground air tunnels, in cold region.　　This paper describes the cooling performance of an underground air tunnel connected to a test house in Kitami. The test house contained two rooms, one of which was equipped with an air tunnel and the other of which was not. Experiments were carried out to measure air temperatures, air humidities in both the air tunnel and the test rooms and the surrounding soil temperatures.　Performance was evaluated by comparing indoor temperatures in the 2 rooms, and comparing the values of cooling energy and Coefficient of Peformance (COP) values between this study and previous studies.　　The results of these experiments show that underground air tunnels for passive summer cooling work more effectively in cold region.},
 pages = {1--16},
 title = {寒冷地における地下エアトンネルによる住熱環境改善に関する研究　：　(その１．小規模試験家屋における夏季の涼房性能評価)},
 volume = {29},
 year = {1998}
}