Results 1 to 10 of about 86,221 (307)

Simulation of single- and dual-frequency induction heating of rail flash-butt welded joints

open access: yesHanjie xuebao
Induction normalizing treatment after rail flash-butt welding is of critical importance to improve the service life of joints and enhance train safety. To optimize the induction normalizing process, an electro-magneto-thermal bidirectional coupling model
Xiao WANG   +6 more
doaj   +1 more source

An Experimental Study of the Vapor Temperature in the Reaction Zone for Producing Liquid from Camphor Wood in a Non-sweeping Gas Fixed-bed Pyrolysis Reactor

open access: yesInternational Journal of Technology, 2018
The liquids produced by the pyrolysis process with biomass as the raw material are popularly called bio-oil. The reaction zone temperature in the pyrolysis process affects the liquid yield in a non-sweeping gas fixed-bed reactor.
Nasruddin A Abdullah   +4 more
doaj   +1 more source

Computer simulations of thermal phenomena in surface heating process using the real distribution of Yb:YAG laser power

open access: yesMATEC Web of Conferences, 2018
This work concerns mathematical and numerical modelling of temperature field during Yb:YAG laser heating of sheets made of S355 steel with the motion of liquid steel in the fusion zone taken into account.
Kubiak Marcin   +4 more
doaj   +1 more source

Field Measurements and Numerical Simulation for the Definition of the Thermal Stratification and Ventilation Performance in a Mechanically Ventilated Sports Hall

open access: yesEnergies, 2019
Sports halls must meet strict requirements for energy and indoor air quality (IAQ); therefore, there is a great challenge in the design of the heating, ventilation, and air conditioning (HVAC) systems of such buildings.
Lina Seduikyte   +7 more
doaj   +1 more source

Simulation and optimization of heat transfer in underground in-situ shale upgrading

open access: yesYouqi dizhi yu caishoulu
In-situ heating and upgrading technology is a key method to improve the recovery efficiency of shale oil and gas with medium-low maturity. It aims to simulate and optimize the heat transfer effects of underground shales during the in-situ heating and ...
LI Yuan   +6 more
doaj   +1 more source

An integrated model for productivity prediction of cyclic steam stimulation with horizontal well

open access: yesEnergy Science & Engineering, 2019
As the accurate productivity prediction of cyclic steam stimulation with horizontal well (CSSHW) is essential for its effective utilization in heavy oil reservoirs, a novel integrated model for predicting productivity of CSSHW was proposed in this paper.
Congge He   +5 more
doaj   +1 more source

Numerical Study on Flow and Thermal Characteristics of High‐Voltage Molten Salt Electric Heater Applied in Large‐Scale Energy Storage

open access: yesEnergy Science & Engineering
The overheating phenomenon is a common issue in molten salt electric heaters (MSEHs), significantly limiting their application in large‐scale energy storage systems. To address this, a three‐dimensional analysis model of a high‐voltage resistance MSEH is
Yujie Qiu   +4 more
doaj   +1 more source

REPARING OF TURBINE INNER CASE BY MANUAL METAL ARC WELDING

open access: yesDiyala Journal of Engineering Sciences, 2020
The research consisted of performing the maintenance on the internal cover (shell) of the electric power generating unit turbine which was made of nodular cast iron that was achieved by replacing the damage part, with cast carbon steel, using manual ...
Atta Jalal Mohammed Atta
doaj  

FRICTIONAL ELECTRICITY AND TOOL MATERIALS WEAR

open access: yesВестник Донского государственного технического университета, 2018
Thomson spatial heat sources power is determined. It is shown that the heating spatial source helps reduce the total flow quantity entering the plate, and expand heat penetration.
Anatoly A. Ryzhkin   +1 more
doaj  

Case study: reducing heating energy consumption in a high tunnel greenhouse with renewable energy and microclimate control by bench-top root-zone heating, bench covers, and under-bench insulation

open access: yesDiscover Sustainability
Appalachian State University's Nexus project designed an efficient greenhouse heating system that integrated renewable energy and root zone heating technology to reduce the greenhouse heating energy burden on local farmers and installed it at local ...
Hei-Young Kim   +2 more
doaj   +1 more source

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