Results 91 to 100 of about 178,387 (354)

Design of experiments for measuring heat-transfer coefficients with a lumped-parameter calorimeter [PDF]

open access: yes
A theoretical investigation was conducted to determine optimum experimental conditions for using a lumped-parameter calorimeter to measure heat-transfer coefficients and heating rates.
Vanfossen, G. J., Jr.
core   +1 more source

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  

MXene Membrane as Multifunctional Interface for Vapor Splitting via Photothermal‐Catalytic Membrane Distillation

open access: yesAdvanced Materials, EarlyView.
A multifunctional MXene‐based membrane integrates photothermal evaporation and photocatalytic vapor splitting in a sweeping‐gas membrane distillation (PTC‐SGMD) platform, simultaneously generating freshwater and hydrogen. The SrTiO3/MX@PVDF interface leverages broad‐spectrum solar absorption, efficient heat/mass transfer, and gas–solid catalysis to ...
Jiawei Sun   +11 more
wiley   +1 more source

Study on the Characteristics of Air Side Heat Transfer for Finned Tube Condenser in Low-pressure Environment

open access: yesZhileng xuebao, 2021
In this study, a pressure-adjustable closed environment chamber was built, and the effect of different tube rows and circulating hot water temperatures on the characteristics of air-side convective heat transfer for a finned tube condenser at a low ...
Zhang Ruhang, Liu Jianhua, Zhang Liang
doaj   +2 more sources

Characteristics and performance of the variable polarity plasma arc welding process used in the Space Shuttle external tank [PDF]

open access: yes
Significant advantages of the Variable Polarity Plasma Arc (VPPA) Welding Process include faster welding, fewer repairs, less joint preparation, reduced weldment distortion, and absence of porosity.
Hung, R. J., Lee, C. C., Liu, J. W.
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

Moth‐Wing‐Inspired Multifunctional Metamaterials

open access: yesAdvanced Materials, EarlyView.
This study develops a moth‐wing‐inspired heterogeneous metamaterial that achieves synergistic broadband sound absorption, mechanical energy dissipation, and thermal insulation within a lightweight architected framework. Combining bioinspired gradient design, genetic‐algorithm optimization, and additive manufacturing, the bionic heterogeneous acoustic ...
Haoran Pei   +12 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

Hydrogel Thermostat Inspired by Photoprotective Foliage Using Latent and Radiative Heat Control

open access: yesAdvanced Materials, EarlyView.
Guided by Populus alba foliage, this hydrogel latent‐radiative thermostat (LRT) actively balances latent and radiative heat fluxes. An LRT switches solar reflectance, maintains high mid‐IR emissivity, and reversibly evaporates/regenerates water, while titanium oxide (TiO2) nanoparticles toughen the film.
Se‐Yeon Heo   +15 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

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