Results 71 to 80 of about 953,387 (189)

Effect of diffuse solar radiation on the thermal performance of solar collectors

Case Studies in Thermal Engineering, 2018
To characterize the thermal performance of solar thermal collectors, lab tests are required to evaluate the maximum thermal efficiency and heat loss. The CNS 15165–1:2008 is in compliance with ISO 9806:1994, which is an outdoor steady-state test method ...
Kung-Ming Chung, Chia-Chun Chen, Keh-Chin Chang   +2 more
doaj   +1 more source

Simulation of thermal radiation effects on the thermal properties of parietodynamic walls using an innovative model

Low-Carbon Materials and Green Construction
The parietodynamic wall, a type of dynamic insulation, has been recognized as an effective technology to reduce energy loss in buildings by recovering heat energy through forced convection.
Xianzhang Dong, Baochen Lin, Huigang Xiao, Min Liu   +3 more
doaj   +1 more source

Thermal energy transformer [PDF]

, 1979
For use in combination with a heat engine, a thermal energy transformer is presented. It is comprised of a flux receiver having a first wall defining therein a radiation absorption cavity for converting solar flux to thermal energy, and a second wall ...
Berdahl, C. M., Thiele, C. L.
core   +1 more source

Extreme Hawking Radiation

, 2020
Modeling the collapse of an extreme Reissner-Nordstr\"om (ERN) black hole by solving the corresponding moving mirror model for the trajectory that asymptotically approaches uniform acceleration, we obtain the non-zero beta coefficients for all times ...
Good, Michael R. R.
core   +1 more source

Energy optimization of quadratic thermal convection on two-phase boundary layer flow across a moving vertical flat plate

Case Studies in Thermal Engineering
The need for a consistent and reliable energy supply to improve productivity is steadily increasing both in industrial and residential settings. The fulfillment of this requirement can be effectively achieved by implementing quadratic thermal radiation ...
A.M. Obalalu, Wafa F. Alfwzan, M. Asif Memon, Adil Darvesh, Peter Adegbite, A.S. Hendy, Mohamed R. Ali   +6 more
doaj   +1 more source

Radiative flow past a parabolic started isothermal vertical plate with uniform mass diffusion

International Journal of Applied Mechanics and Engineering, 2014
A theoretical solution of thermal radiation effects on an unsteady flow past a parabolic starting motion of an infinite isothermal vertical plate with uniform mass diffusion has been studied.
R. Muthucumaraswamy, V. Lakshmi
doaj   +1 more source

A Secret Tunnel Through The Horizon

, 2004
Hawking radiation is often intuitively visualized as particles that have tunneled across the horizon. Yet, at first sight, it is not apparent where the barrier is. Here I show that the barrier depends on the tunneling particle itself.
Gibbons G. W., Gullstrand A., Hawking S. W., Painlevé P.   +3 more
core   +1 more source

Thermal radiation of tongue surface as a human computer interaction diagnostics technique based on image classification with software interface

Journal of Radiation Research and Applied Sciences
Background: and Purpose: Thermal radiation plays a pivotal role in addressing recognition limitations encountered by traditional Chinese medicine's tongue diagnosis.
Xing Min Lin, Luting Xia, Xiaoyun Ye
doaj   +1 more source

Nonlinear Heat Radiation Induces Thermal Rectifier in Asymmetric Holey Composites

Frontiers in Energy Research, 2018
Asymmetric design and nonlinearity are essential to give rise to thermal rectification. In addition to the linear Fourier’s law of thermal conduction, we introduce the nonlinear thermal radiation following Stefan–Boltzmann law to asymmetric holey ...
Weiwei Zhu, Gaomin Wu, Hong Chen, Jie Ren   +3 more
doaj   +1 more source

Study on Thermal Radiation Characteristics and the Multi-Point Source Model of Hydrogen Jet Fire

Applied Sciences
Hydrogen safety remains a paramount concern in pipeline transportation. Once hydrogen leaks and ignites, it quickly escalates into a jet fire incident. The substantial thermal radiation released poses significant risks of fire and explosion.
Haiyang Zhang, Xun Cao, Xuhao Yuan, Fengrong Wu, Jing Wang, Yankang Zhang, Qianqian Li, Hu Liu, Zuohua Huang   +8 more
doaj   +1 more source