Results 91 to 100 of about 158,235 (305)

Heat transfer enhancement using nanofluids in the compression exchanger in a solar Stirling engine [PDF]

open access: yes, 2019
In this paper a improvement in the heat exchange of a solar Stirling engine during the compression phase was studied. The viability of using nanoparticles as ceramic oxide (Al2O3 in water) at different concentrations instead of conventional ...
Arjona-Escudero, Jose Luis   +2 more
core  

Ultrafast (1‐5 sec) Lamination of Perovskite Solar Cells With Self‐Encapsulation Using Rapid Joule Heating

open access: yesAdvanced Materials Technologies, EarlyView.
Halide perovskite solar cells are fabricated with self‐encapsulation by lamination between two glass substrates using rapid Joule heating, yielding a 99% reduction in lamination time compared to previous studies. An 18% efficient cell is laminated in 5 s, demonstrating the potential for scalable manufacturing. ABSTRACT Perovskite solar cells (PSCs) are
Oluka Okia   +9 more
wiley   +1 more source

Transient hot-film sensor response in a shock tube [PDF]

open access: yes
Shock tube experiments were performed to determine the response of a hot-film sensor, mounted flush on the side wall of a shock tube, to unsteady flow behind a normal shock wave.
Gartenberg, E.   +2 more
core   +1 more source

Rigid open-cell polyurethane foam for cryogenic insulation [PDF]

open access: yes, 1971
Lightweight polyurethane foam assembled in panels is effective spacer material for construction of self-evacuating multilayer insulation panels for cryogenic liquid tanks. Spacer material separates radiation shields with barrier that minimizes conductive
Faddoul, J. R.   +4 more
core   +1 more source

In Situ Copper Electroplating Turns Material Extrusion 3D Printers Into Metal–Polymer Hybrid Fabricators

open access: yesAdvanced Materials Technologies, EarlyView.
An in situ electroplating approach for MEX 3D printing is proposed, enabling copper deposition during the fabrication of conductive polymers. The method combines a printer‐integrated plating head, ML‐based g‐code control, and stop‐and‐go printing, achieving near‐bulk copper conductivity and enabling fully embedded, assembly‐free electronic components ...
Gianluca Percoco   +5 more
wiley   +1 more source

Radiative transfer for parallel streams of radiating gases [PDF]

open access: yes
Radiative and convective heat transfer between two parallel streams of absorbing and emitting radiating ...
Whang, Y. C.
core   +1 more source

Simple transducer measures low heat-transfer rates [PDF]

open access: yes, 1964
A simple transducer is used to measure low rates of convective and conductive heat transfer from a fluid to a cooled surface under steady-state conditions.
Laumann, E. A.
core   +1 more source

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

open access: yesAdvanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu   +6 more
wiley   +1 more source

Heat transfer on accreting ice surfaces [PDF]

open access: yes
Based on previous observations of glaze ice accretion on aircraft surfaces, a multizone model with distinct zones of different surface roughness is demonstrated. The use of surface roughness in the LEWICE ice accretion prediction code is examined. It was
Hansman, R. John, Jr., Yamaguchi, Keiko
core   +1 more source

Design sensitivity analysis of a plate-finned air-cooled condenser for waste heat recovery ORCs [PDF]

open access: yes, 2015
The study is related to the design sensitivity analysis of a plate-finned tube bundle V-shaped air-cooled condenser design problem for a range of representative low-temperature waste heat recovery Organic Rankine Cycle (ORC) cases.
De Paepe, Michel   +2 more
core   +1 more source

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