Results 1 to 10 of about 396,287 (301)
Improving the performance of evacuated tube heat pipe collectors using oil and foamed metals
Ain Shams Engineering Journal, 2018 The objective of this research is to improve the heating capability of evacuated tubes that comprises heat pipes. Thermal oil is inserted in the evacuated tube in order to improve the rate of heat transfer, such that the mode of heat transfer from the ...
MS Abd-Elhady
exaly +4 more sources
A comprehensive review of techniques for increasing the efficiency of evacuated tube solar collectors [PDF]
Heliyon, 2023 With the growing energy needs, a conscious effort has been made to use non-conventional energy sources to generate clean energy efficiently. Solar energy has always been popular among humanity.
Sorabh Aggarwal +4 more
doaj +2 more sources
Artificial Neural Networks-Based Software for Measuring Heat Collection Rate and Heat Loss Coefficient of Water-in-Glass Evacuated Tube Solar Water Heaters. [PDF]
PLoS ONE, 2015 Measurements of heat collection rate and heat loss coefficient are crucial for the evaluation of in service water-in-glass evacuated tube solar water heaters.
Zhijian Liu +5 more
doaj +2 more sources
Experimental investigation on solar air heating system using evacuated tube collector with coaxial tube [PDF]
Scientific ReportsSolar energy is a widely accessible, eco-friendly, and sustainable way to fulfil the global expanding energy needs. Solar air heaters are used in a variety of solar energy applications, including space heating, timber seasoning, and agricultural drying ...
Venkatramanan Ravichandran +3 more
doaj +2 more sources
International Journal of Thermofluids, 2023 This experimental study discusses the thermal efficiency enhancement of a parabolic trough solar collector (PTSC) system using different absorber tube designs.
Asaad Yasseen Al-Rabeeah +2 more
doaj +1 more source
Case Studies in Thermal Engineering, 2023 Enhancing the performance characteristics of solar still is considered one of the most significant factors to increase the still efficiency. This research aims to modify the single slope still to enhance efficiency and maximize freshwater productivity ...
Mohamed B. Farghaly +3 more
doaj +1 more source
Journal of Engineering, 2021 This work is an experimental investigation for single basin-single slope solar still coupled with an evacuated tube solar collector. The work is carried out under the climatic conditions of Baghdad city (33.2456º North and East latitude, 44.3337º ...
Rafal N. Taqi +2 more
doaj +1 more source
Temperature Limitation in Evacuated Solar Collector Tubes [PDF]
Australian Journal of Physics, 1987 A recent innovation in evacuated tubular solar collector technology is described. A desorbable gas, which specifically adsorbs on the graphitic solar selective surface, can reversibly degrade the vacuum by providing a heat conduction path at elevated temperatures. The stagnation temperature of the system is thus limited in a controllable manner without
B.A. Pailthorpe, R.E. Collins, S. O'Shea
openaire +1 more source
Evaluation of Convective Heat Transfer and Natural Circulation in an Evacuated Tube Solar Collector
Journal of Engineering, 2023 The evacuated tube solar collector ETC is studied intensively and extensively by experimental and theoretical works, in order to investigate its performance and enhancement of heat transfer, for Baghdad climate from April 2011 till the end of March 2012.
Saad M. Saleh Al-Mashat +1 more
doaj +1 more source
The Evolution of Evacuated Blood Collection Tubes [PDF]
Laboratory Medicine, 2003 “A laboratory test is no better than the specimen, and the specimen no better than the manner in which it was collected.” So stated the advertising language of BD (Becton Dickinson and Company) to promote the first evacuated blood collection tubes, back in the late 1940s and early 1950s.1 This technology for blood collection, patented in 1949, is ...
Valerie Bush, Richmond Cohen
openaire +1 more source