Results 271 to 280 of about 25,933 (342)

Thermal Modeling of Water-in-Tube Type Evacuated Tube Solar Collectors to Predict Outlet Water Temperature: An Experimental Validation

Journal of solar energy engineering, 2022
Thermal model is developed to predict the outlet water temperature with respect to time for water-in-tube type evacuated solar collector connected in series.
Pushpendra Singh, M. Gaur, G. Tiwari, Ashok Kumar   +3 more
semanticscholar   +1 more source

Test of solar adsorption air-conditioning powered by evacuated tube collectors under the climatic conditions of Iraq

Renewable Energy, 2019
An adsorption chiller for an air-conditioning application integrated with domestic solar collector was tested under the climatic conditions of Baghdad, Iraq.
F. A. Lattieff, M. Atiya, A. Al-Hemiri
semanticscholar   +1 more source

Degradation of all-glass evacuated solar collector tubes

Solar Energy Materials, 1985
Accelerated ageing studies have been carried out for four types of all-glass evacuated collector tubes, two of which are commercially available. Commercially available collector tubes incorporating a sputtered stainless steel-carbon on copper selective surface have good surface and vacuum stability.
S.P. Chow, G.L. Harding, R.E. Collins
openaire   +1 more source

Selective absorbing surface for evacuated solar collector tubes

Renewable Energy, 1999
Abstract The absorptance of AlN-Al(absorbing coating)/Al solar spectrum(0.34 ≈ 2.5 μ m) selective absorbing surface, containing 8-layer AlN-Al composite materials and with distinctive or non-boundaries between the layers, deposited by sputtering technology and heat-treated at 400 °C (60min) is about 0.95 and its thermal emittance is close to 0.07 ≈ 0.
Yueyan Shi, Xiaoji Yang
openaire   +1 more source

Experimental examination of a natural vacuum desalination system integrated with evacuated tube collectors

Desalination, 2019
A solar natural vacuum desalination system was experimentally investigated. Using a barometric water column and creating an equilibrium with atmospheric pressure and gravity, vacuum conditions were maintained inside the evaporation chamber throughout the
M. Abbaspour, Meysam Faegh, M. Shafii
semanticscholar   +1 more source

Thermal augmentation in evacuated tube solar collectors using reflectors, nano fluids, phase change materials and tilt angle: A review

, 2021
This review presents influence of reflectors, tilt angle, phase change materials and nanofluids in solar evacuated tube solar collectors (ETSCs). In order to increase efficiency, various designs of solar ETSCs have deduced that ETSCs integrated with ...
S. Aggarwal, Sushil Kumar, Raj Kumar, Robin Thakur   +3 more
semanticscholar   +1 more source

Renewable energy powered evacuated tube collector refrigerator system

Mitigation and Adaptation Strategies for Global Change, 2013
This article presents a numerical study of an Evacuated Tube Collector (ETC) based Ammonia-Water absorption refrigeration system. This system utilizes solar energy as an energy source and does not depend on conventional energy sources for its operation. The present system involves the use of hot water as an energy carrier for generator in an absorption
S. Anand, A. Gupta, S. K. Tyagi
openaire   +1 more source

Experimental study and CFD thermal assessment of horizontal hot water storage tank integrating Evacuated Tube Collectors with heat pipes

Solar Energy, 2018
This paper presents an experimental study and a set of CFD simulations applied to a horizontal tank storing hot water. Hence, the main purpose of this work is to suggest a new and optimal design of the studied horizontal tank which is considered as the ...
S. Fertahi, T. Bouhal, T. Kousksou, A. Jamil, A. Benbassou   +4 more
semanticscholar   +1 more source

Experimental and theoretical performance evaluation of evacuated tube collectors under mediterranean climate conditions

Thermal Science and Engineering Progress, 2018
In this study four evacuated tube collectors with cylindrical absorber connected in series are investigated experimentally and mathematically under the climatic conditions of Greece.
M. Nitsas, I. Koronaki
semanticscholar   +1 more source

Development on evacuated tube solar collectors: A review of the last decade results of using nanofluids

, 2020
This review presents impact of nanofluids in solar evacuated tube solar collectors (ETSCs). Recent works on this type of solar collector are summarized. The first part depicts the significance of choosing ETSCs for solar domestic hot water in addition to
H. Olfian, S. S. M. Ajarostaghi, M. Ebrahimnataj   +2 more
semanticscholar   +1 more source