نتایج جستجو برای: linear parabolic collectors
تعداد نتایج: 502903 فیلتر نتایج به سال:
sustainable development would be a key solution for climate change and renewable energy plays an important role in this policy. recently, according to increase of co2 emission and other relevant impacts, solar energy has been gaining more attentions from policy makers. thus, compound parabolic concentrators collectors are considered as one of the promising applications from solar thermal advant...
In this paper the daily, monthly, seasonally, and yearly optimum slope angles of solar collectors are determined for areas in Iran and new models are developed to calculate the monthly, seasonally, and yearly optimum slope angles for latitudes of to north. To achieve this purpose, the slope and surface azimuth angles of solar collectors for receiving maximum solar radiation were determined ...
Lifang Li Ph.D. Candidate School of Mechatronics Engineering Harbin Institute of Technology 150001 Harbin, China. [email protected] Steven Dubowsky Professor Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge, 02139 MA. [email protected] Abstract Large parabolic dish concentrator mirrors are an important component of many solar energy systems. They need to ...
Energy, exergy and exergoeconomic (3E) evaluation are performed to assess the performance of a NH3/H2O cycle integrated with parabolic trough solar collectors (PTSC). To provide continuous electricity produced by generator when solar beam radiation is insufficient a stabilizer temperature subsystem is utilized. The major thermodynamic parameters and climate conditions variations are selected to...
In this paper, the cooling system of the air humidifire, completely powered by solar energy, has been designed and optimized. In the cooling system, instead of conventional compression cooling systems, the ammonia absorption refrigeration system has been used.Its design is done in a way that the performanceof the system has increased remarkably in environments with high temperature. The ammonia...
it is well known that the parabolic partial differential equationsin two or more space dimensions with overspecified boundary data,feature in the mathematical modeling of many phenomena. in thisarticle, an inverse problem of determining an unknowntime-dependent source term of a parabolic equation in generaldimensions is considered. employing some transformations, wechange the inverse problem to...
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