اخبار و اعلانات

 آمار

تعداد نشریات24
تعداد شماره‌ها852
تعداد مقالات7,575
تعداد مشاهده مقاله13,420,708
تعداد دریافت فایل اصل مقاله11,583,392
. (1393). THERMAL PERFORMANCE EVALUATION OF A PROPOSED POINT-FOCUS SOLAR COLLECTOR FOR LOW POWER APPLICATIONS. , 38(38M1+), 263-268. doi: 10.22099/ijstm.2014.1971
. "THERMAL PERFORMANCE EVALUATION OF A PROPOSED POINT-FOCUS SOLAR COLLECTOR FOR LOW POWER APPLICATIONS". , 38, 38M1+, 1393, 263-268. doi: 10.22099/ijstm.2014.1971
. (1393). 'THERMAL PERFORMANCE EVALUATION OF A PROPOSED POINT-FOCUS SOLAR COLLECTOR FOR LOW POWER APPLICATIONS', , 38(38M1+), pp. 263-268. doi: 10.22099/ijstm.2014.1971
. THERMAL PERFORMANCE EVALUATION OF A PROPOSED POINT-FOCUS SOLAR COLLECTOR FOR LOW POWER APPLICATIONS. , 1393; 38(38M1+): 263-268. doi: 10.22099/ijstm.2014.1971

THERMAL PERFORMANCE EVALUATION OF A PROPOSED POINT-FOCUS SOLAR COLLECTOR FOR LOW POWER APPLICATIONS

Iranian Journal of Science and Technology Transactions of Mechanical Engineering
مقاله 11، دوره 38، 38M1+، مرداد 2014، صفحه 263-268    اصل مقاله (205.76 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22099/ijstm.2014.1971
چکیده
In this study, thermal performance of a proposed point-focus solar collector for low
power applications was estimated under different operating variables. For this purpose, theoretical
analysis was employed with varying relevant parameters, using a set of thermodynamics and
energy equations, i.e., ambient temperature, beam solar insolation, wind speed, wind incidence
angle and wall temperature of the absorber. The results show decreasing trend of the wind
incidence angle along with increasing the convective heat loss coefficient as the highest related
values obtained under head-on wind flow, but the wall temperature of the absorber exerts
negligible influence. The maximum thermal efficiency of 79.68% was obtained in August with the
side-on wind flow of 4.9􀝉⁄􀝏 and an ambient temperature of 29.2􀔨 when the absorber wall
temperature has a minimum value of 150􀔨.
کلیدواژه‌ها
Solar energy؛ point-focus solar collector؛ low power application؛ thermal performance
آمار
تعداد مشاهده مقاله: 2,104
تعداد دریافت فایل اصل مقاله: 2,679


سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب