Results 21 to 30 of about 1,992,603 (239)
Passive solar energy : modifications of existing masonry walls to improve thermal performance. [PDF]
, 1986 Existing brick walls usually have a high U value, one method of improvement is by insulation, but if the wall faces approximately south, it is possible that greater benefits could be obtained by improving the wall's performance as a solar collector ...
Boyle, P.M., Boyle, P.M
core +7 more sources
Convection of Moist Saturated Air: Analytical Study
Atmosphere, 2016 In the present work, the steady-state stationary thermal convection of moist saturated air in a lower atmosphere has been studied theoretically. Thermal convection was considered without accounting for the Coriolis force, and with only the vertical ...
Robert Zakinyan +3 more
doaj +1 more source
Investigation of moving trapezoidal and exponential fins with multiple nonlinearities
Ain Shams Engineering Journal, 2023 In this article, we study moving longitudinal and exponential fins with variable thermal conductivity, thermal emissivity, and heat transfer coefficient. The problem is solved numerically using shooting technique.
Zia Ud Din +3 more
doaj +1 more source
Oil & Gas Science and Technology, 2018 Natural Gas Hydrate (NGH) has attracted increasing attention for its great potential as clean energy in the future. The main heat transfer mode that controls the thermal front movement in the process of NGH exploitation by heat injection was discussed ...
Hao Yongmao +5 more
doaj +1 more source
Entropy, 2018 Entropy generation in thermal convection with differentially discrete heat boundary conditions at various Rayleigh numbers (Ra) are numerically investigated using the lattice Boltzmann method.
Zhengdao Wang, Yikun Wei, Yuehong Qian
doaj +1 more source
Physical Review Research, 2022 Inverse cascades of kinetic energy and thermal variance in the subset of vertically homogeneous modes in spectral space are found to cause a slow aggregation to a pair of convective supergranules that eventually fill the whole horizontally extended ...
Philipp P. Vieweg +3 more
doaj +1 more source
Melting of PCM in a thermal energy storage unit: Numerical investigation and effect of nanoparticle enhancement [PDF]
, 2012 The present paper describes the analysis of the melting process in a single vertical shell-and-tube latent heat thermal energy storage (LHTES), unit and it is directed at understanding the thermal performance of the system.
Sciacovelli, Adriano +3 more
core +1 more source
Case Studies in Thermal Engineering, 2023 The characteristics of heat transport in a porous medium saturated by a nanoliquid subject to non-linear variations of density-temperature relation and a novel quadratic thermal radiation are studied.
Puneet Rana, Akash Kumar, Sarita Pippal
doaj +1 more source
Air Convection in the Active Layer of Rock Glaciers
Frontiers in Earth Science, 2020 Coarse blocks are an abundant surface cover in mountainous permafrost landscapes. In this coarse blocky layer, air convection occurs and has a significant influence on the ground thermal regime of the underlying permafrost.
Jonas Wicky, Christian Hauck
doaj +1 more source
Thermal properties of vesicular rhyolite [PDF]
, 1994 Thermal diffusivity of rhyolite melt and rhyolite foam (70–80% porosity) has been measured using the radial heat transfer method. Cylindrical samples (length 50–55 mm, diameter 22 mm) of rhyolite melt and foam have been derived by heating samples of ...
Bagdassarov, Nikolai +1 more
core +1 more source