Results 221 to 230 of about 17,173,630 (326)

Numerical Study on the Effect of Structural Variation of S‐Shaped Flow Channel Absorber on the Thermal Performance of Line‐Focusing Fresnel Lens Solar Collector

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT As a clean and renewable energy source, solar energy development and utilization have garnered significant attention. This study investigates the potential of Fresnel lenses to enhance the thermal efficiency of solar collectors by analyzing the effects of water flow channel structure and flow rate on heat gain.
Huaping Zhang   +5 more
wiley   +1 more source

Long‐Term Performance Analysis of Foundation Pile and Vertical Borehole Heat Exchangers for Ground Source Heat Pump Systems in Cold Climates

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Ground source heat pump systems (GSHPs) have received considerable interest from researchers for the decarbonization of energy use in buildings owing to their higher efficiency. The ground heat exchanger (GHE) is the primary component of a GSHP. Vertical borehole heat exchangers (VBHE) and foundation piles (FP) are common GHEs that researchers
Philip Adebayo   +5 more
wiley   +1 more source

Coherent tunneling by adiabatic process in a four-waveguide optical coupler

open access: bronze, 2016
Shi Jian   +5 more
openalex   +2 more sources

Numerical Modelling of Timber Connections Considering the Influence of Gap Size and Intumescent Sealants

open access: yesFire and Materials, EarlyView.
ABSTRACT This paper presents the development of finite element models for timber connections with gaps under fire conditions which are subsequently validated using experimental data. Fourteen models are developed for concealed steel‐to‐timber connection configurations with gap sizes of 0, 3, 6 and 10 mm exposed to ISO 834 standard fire for 120 min ...
Marika du Plessis   +2 more
wiley   +1 more source

Thermal–Hydraulic Performance of Nanofluids in Turbulent Separated Flow Induced by Double Forward Facing Step With Converging/Diverging Wall

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
Compared to experimental data of thermophysical properties of NFs, semi‐empirical models cannot estimate FOM correctly. For all working fluids, applying a converging channel instead of the canonical case was inefficient. Diverging channel was always favored compared to the canonical case. For less effective NFs, both lowering the reference velocity and
Mahmoud Jourabian, Mehrdad Raeesi
wiley   +1 more source

Adiabatic Shear Localization in Metallic Materials: Review. [PDF]

open access: yesMaterials (Basel)
Guan X   +5 more
europepmc   +1 more source

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