Due to rapid industrialization and urbanization, upward rise in carbon emissions the atmosphere, depletion of fossil fuel gas reserves have forced find alternative renewable energy resources, where solar is one most promising source. Parabolic trough collectors (PTCs) can effectively transfer high temperature tube receiver upto 400 °C. In this study, Computational Fluid Dynamics (CFD) analysis ...

In this research, a practical and theoretical study was conducted to evaluate the performance of parabolic trough collectors (PTCS) length (3 m) width (2.67 for three solar connected in parallel, absorber tube is made stainless steel with an internal external diameter (0.028 m), (0.031 respectively. The 11 m, painted un shiny black paint increase absorption sunlight reduces thermal radiation. w...

An evacuated tubular solar collector was fabricated from acrylics for improved resistance to shattering. A plasmatron was employed to apply a thin gas-barrier coating to the surfaces of the plastic tube to prevent/alleviate gas infiltration. Experiments were conducted to investigate the effect of vacuum level on the performance of the non-glass vacuum-tube solar collector. Inserted in the evacu...

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...

Solar air heater is a type of heat exchanger which transforms solar radiation into heat energy. The thermal performance of conventional solar air heater has been found to be poor because of the low convective heat transfer coefficient from the absorber plate to the air. It is attributed to the formation of a very thin boundary layer at the absorber plate surface commonly known as viscous sub-la...