河西学院学报
河西學院學報
하서학원학보
JOURNAL OF HEXI UNIVERSITY
2014年
5期
59-65
,共7页
董光兴%孙桂华%王新星%林秀娟
董光興%孫桂華%王新星%林秀娟
동광흥%손계화%왕신성%림수연
橡胶%铜棒%稳态法%傅立叶定律
橡膠%銅棒%穩態法%傅立葉定律
상효%동봉%은태법%부립협정률
Rubber%Copper%Steady-State method%Fourier law of heat conduction
应用稳态法分别测量热的不良导体(橡胶)和热的良导体(铜棒)的热导率,发现用稳态法测量热导率,在稳定传热条件下,增大被测量材料两端温差到20℃左右,热的良导体和热的不良导体材料的热导率的测量精度都会提高;在同样的实验环境中,稳态法测定热的不良导体的热导率比其测定热的良导体热导率实验精度高。
應用穩態法分彆測量熱的不良導體(橡膠)和熱的良導體(銅棒)的熱導率,髮現用穩態法測量熱導率,在穩定傳熱條件下,增大被測量材料兩耑溫差到20℃左右,熱的良導體和熱的不良導體材料的熱導率的測量精度都會提高;在同樣的實驗環境中,穩態法測定熱的不良導體的熱導率比其測定熱的良導體熱導率實驗精度高。
응용은태법분별측량열적불량도체(상효)화열적량도체(동봉)적열도솔,발현용은태법측량열도솔,재은정전열조건하,증대피측량재료량단온차도20℃좌우,열적량도체화열적불량도체재료적열도솔적측량정도도회제고;재동양적실험배경중,은태법측정열적불량도체적열도솔비기측정열적량도체열도솔실험정도고。
The thermal conductivity of a poor conductor of heat (rubber) and a good conductor of heat (copper) were measured on the application of the steady -state method in this paper. It is found that the accuracy of experiment is higher when the temperature difference is equal to 20℃. And there is significant difference in the experiment of two masteries with different heat transfer mechanism in the same steady-state method, the precision of rubber's experiment is better than the copper's.