Results 21 to 30 of about 12,464 (300)

Evacuated tube solar collector with multifunctional absorber layers [PDF]

Solar Energy, 2017
Abstract Solar water heaters (SWHs) are a well-established renewable energy technology that have been widely adopted around the world. In this study we have significantly improved the Evacuated Tube solar Collectors (ETCs) by utilizing the “dry-drawable” Carbon Nanotube (CNT) sheet coatings to increase the solar energy absorption and Phase Change ...
Sarvenaz Sobhansarbandi, Patricia M. Martinez, Alexios Papadimitratos, Anvar Zakhidov, Fatemeh Hassanipour   +4 more
openaire   +1 more source

Comparison of the Energy Performance between Flat-plate and Heat Pipe Evacuated Tube Collectors for Solar Water Heating Systems under Mediterranean Climate Conditions

Journal of Sustainable Development of Energy, Water and Environment Systems, 2019
In this paper, the energy performance of a flat-plate collector and a heat pipe evacuated tube collector exploited for domestic hot water production in the Mediterranean climate is compared.
Altin Maraj, Andonaq Londo, Coskun Firat, Alemayehu Gebremedhin   +3 more
doaj   +1 more source

CFD Analysis of Thermal Performance in a U-Tube Solar Collector [PDF]

EPJ Web of Conferences
Solar water heating systems have both domestic and industrial applications that are both inexpensive and easy to maintain. In this study, the thermal performance of a U tube evacuated tube solar collector (ETSC's) was evaluated numerically.
Tukhtabaev Jamshid, Tursunov Jakhongir, Abduvohidov Abdurahmon, Khasanov Bakhriddin, Kadirov Islom, Nurillaev Mirolim   +5 more
doaj   +1 more source

The effect of different working fluids and internal geometries on the efficiency of evacuated tube heat pipe solar collectors

Journal of Energy in Southern Africa, 2020
In this study, a heat pipe was modified with designed and manufactured inserts of specific profiles in order to investigate the effect of the internal geometries and working fluids on the efficiency of the evacuated tube heat pipe solar collector.
Jean Gad Mukuna, Jasson Gryzagoridis
doaj   +1 more source

Performance enhancement of an evacuated tubes solar collector using Forchheimer’s saturated porous media with embedded nanofluid

Advances in Mechanical Engineering, 2022
The evacuated tube solar collector is a proper choice for converting solar energy into heat since it is efficient, practical, and cost-effective. In the current study, the role of nanofluid in porous medium was numerically investigated to improve the ...
Hamzeh M Duwairi, Mohammad Alrbai, Mohammad B Al-Dweik   +2 more
doaj   +1 more source

The effect and contribution of wind generated rotation on outlet temperature and heat gain of LS-2 parabolic trough solar collector [PDF]

, 2013
The Monte Carlo ray tracing method is applied and coupled with finite volume numerical methods to study effect of rotation on outlet temperature and heat gain of LS-2 parabolic trough concentrator (PTC).
Mirzaee Iraj, Pesteei Mehdi Seyed, Sadaghiyani Omid Karimi   +2 more
core   +1 more source

Study of the Solar Collectors with Evacuated Tubes

International Journal of Innovative Research in Computer Science & Technology, 2021
Solar thermal collector systems allow solar energy to be used for cooling and heating. A heat transfer fluid is utilized in these collectors to transmit collected solar energy to applications that need it. Scientists have proposed various collector designs and better collection materials to enhance the solar collector's conversion efficiency.
Arvind Kumar, Shikha Parashar
openaire   +1 more source

Mathematics Modelling and Performance Analysis of the Heat Transfer on Vacuum Tube Collector of Water Heater Application [PDF]

E3S Web of Conferences, 2020
The aim of this work is to study a mathematical modelling and simulation for predicting the thermal performance heat-pipe evacuated a solar collector for water heater, which was considered the temperature distribution along the tube axis and radius. This
Hamanda Lia, Nugroho Gunawan
doaj   +1 more source

Building-integrated solar thermal systems based on vacuum-tube technology: Critical factors focusing on life-cycle environmental profile [PDF]

, 2016
The present study refers to Building-Integrated Solar Thermal (BIST) systems based on vacuum-tube collectors and it consists of two parts. In the first part, a literature review is presented, including studies about vacuum-tube technology (vacuum-tube ...
Canaletti, J. L., Chemisana Villegas, Daniel, Cristofari, Christian A., Lamnatou, Chrysovalantou   +3 more
core   +2 more sources

CFD model-based analysis and experimental assessment of key design parameters for an integrated unglazed metallic thermal collector façade [PDF]

, 2020
Active façade systems incorporating solar thermal collectors currently offer very promising energetic solutions. From among the available systems, a simple solution is the unglazed heat collector for potential integration in low-temperature applications.
Blanco, J.M., Chica, J.A., Elguezabal, P., Lopez, A.   +3 more
core   +1 more source