Results 41 to 50 of about 12,464 (300)

Novel high precision low-cost dual axis sun tracker based on three light sensors

open access: yesHeliyon, 2022
This study aims to test a new type of dual axes solar tracker based on just three Light Dependent Resistors (LDR) as optical sensors in order to achieve a high precision sun tracking that satisfies the requirements of solar concentration systems.
Youssef Boukdir, Hamid EL Omari
doaj   +1 more source

Analysis and Experimental Tests of a High-Performance Evacuated Tubular Collector [PDF]

open access: yes, 1978
A high-performance collector based on the use of all-glass, evacuated tubular collector elements is described and analyzed, and supporting experimental data presented.
Beekley, D. C., Mather, G. R., Jr.
core   +2 more sources

Adsorption Solar Air Conditioning System for Singapore Climate

open access: yesEnergies, 2022
The design of an adsorption solar air conditioning system is investigated by using a model with an activated carbon–methanol working pair. This system is analysed with the solar insolation levels and ambient temperatures of Singapore. The proposed design
Zacharie Tamainot-Telto   +2 more
doaj   +1 more source

Investigation of the Hottel–Whillier–Bliss Model Applied for an Evacuated Tube Solar Collector

open access: yesEng
The goal of this research is to examine the applicability of the Hottel–Whillier–Bliss model, developed for flat-plate collectors, to evacuated tube solar collectors.
Márton Rátkai   +2 more
doaj   +1 more source

Performance optimization of evacuated tube collector for solar cooling of a house in hot climate

open access: yesInternational Journal of Sustainable Energy, 2018
Evacuating the space connecting cover and absorber significantly improves evacuated tube collector (ETC) performance. So, ETCs are progressively utilised all over the world.
Adel A. Ghoneim
doaj   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

Enhancing the Performance of Evacuated and Non-Evacuated Parabolic Trough Collectors Using Twisted Tape Inserts, Perforated Plate Inserts and Internally Finned Absorber

open access: yesEnergies, 2018
The thermal enhancement of parabolic trough collectors is a critical issue and numerous ideas have been applied in the literature on this domain. The objective of this paper is to investigate some usual thermal enhancement techniques for improving the ...
Evangelos Bellos, Christos Tzivanidis
doaj   +1 more source

Solar energy use for energy savings in dairy processing plants [PDF]

open access: yes, 2007
New Zealand is one of the world’s largest producers of dairy products and has a climate with high levels of solar radiation; however, the use of solar energy in the dairy processing industry has received limited attention.
Anderson, Timothy Nicholas, Duke, Mike
core  

Evacuated tube solar collectors integrated with phase change materials [PDF]

open access: yesSolar Energy, 2016
Abstract This paper presents a novel method of integrating phase change materials (PCMs) within the evacuated solar tube collectors for solar water heaters (SWHs). In this method, the heat pipe is immersed inside the phase change material, where heat is effectively accumulated and stored for an extended period of time due to thermal insulation of ...
Papadimitratos, Alexios   +4 more
openaire   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy