T R I B O L O G Y & L U B R I C A T I O N T E C H N O L O G Y W W W . S T L E . O R G evelopment of alternative energy sources has been a daunting task from both the technology and economic standpoints. a case in point is capturing solar energy for use in generating electricity. in a previous tLt article, a heat transfer fluid is found to be an integral component in a parabolic mirror used to c...

Application of solar collectors for hot water supply, space heating, and cooling plays a significant role in reducing building energy consumption. For conventional solar collectors, solar radiation is absorbed by spectral selective coating on the collectors' tube/plate wall. The poor durability of the coating can lead to an increased manufacturing cost and unreliability for a solar collector op...

The state-of-the-art solar power system technologies are presented. Various methods of capturing solar energy using solar collectors such as parabolic trough collectors and dish collectors are reviewed. Combined heat and power (CHP) systems driven by concentrating solar absorbers and supplemented by biomass boilers are proving to be the most promising methods of domestic power generation. μCHP ...

A solar thermal collector is a heat that absorbs via sunlight. It device turns the energy in sunshine or radiation into useful and storable form. This conveyed electromagnetic with wavelengths ranging from infrared (long) to ultraviolet (short). Solar one of cleanest most versatile renewable sources when compared other sources. trough collectors (PTC), Compound Parabolic Collectors (CPC), Linea...

Parabolic solar collectors with central receiving systems are preferred due to their high efficiency despite initial investment and operating costs. In this study, the effect of two glass covers on tubular collector will be investigated, aiming enhancement cylindrical parabolic collectors’ efficiency. By using cover it is aimed decrease losses increase order investigate changes instantaneous ef...

Parabolic concentrator mirrors are an important component of many solar energy systems, particularly solar mirror collectors. Precision parabolic mirrors are expensive to fabricate and to transport. Here, a new concept for designing and fabricating precision parabolic mirrors is presented. The mirror is formed from a thin flat very flexible metal sheet with a highly reflective surface. Attached...

Solar parabolic concentrating collectors are widely and efficiently used in electrical generation. They were experimentally validated in worldwide pioneer plants. SEGS-VI 30 MW solar power plant built in southern California is one of these plants that was commissioned many years ago. In this work a possibility of installing such plant in Makkah, 21.4 °N located in moderate latitudes is studied....

The aim of this research was manufacturing a parabolic trough solar collector in which reflecting surface is made of mirror steel rather than usual mirror and also predicting its theoretical performance.by adjusting planar ⩝ -shaped structures parallel to each other and welding them together, the main supporting structure was assembled and a parabolic-shape Teflon arc was installed in the apert...

In this study, a new proposed multi-generation system as a promising integrated energy conversion system is studied, and its performance is investigated thermodynamically. The system equipped with parabolic trough collectors and biomass combustor to generate electricity, heating and cooling loads, hydrogen and potable water. A double effect absorption chiller to provide cooling demand, a proton...