The Heat Transfer Model of Oriented Silicon Steel Coil in Annular Furnace during the Heating Stage of High‐Temperature Annealing

2020 ◽  
pp. 2000290
Author(s):  
Tian Xia ◽  
Zhu He ◽  
Zhonghan Luo
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Transfer Model ◽  
Silicon Steel ◽  
Transfer Model ◽  
High Temperature Annealing ◽  
Steel Coil ◽  
Heating Stage ◽  
Annular Furnace

Coupled Reactor Kinetics and Heat Transfer Model for Fluoride Salt-Cooled High-Temperature Reactor Transient Analysis

2016 ◽  
Author(s):  
Xin Wang ◽  
Kathryn D. Huff ◽  
Manuele Aufiero ◽  
Per F. Peterson ◽  
Massimiliano Fratoni
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Monte Carlo Code ◽  
Fluoride Salt ◽  
Neutron Lifetime ◽  
Delayed Neutrons ◽  
Reactor Kinetics ◽  
Point Kinetics

Coupled reactor kinetics and heat transfer models have been developed at the University of California, Berkeley (UCB) to study Pebble-Bed, Fluoride-salt-cooled, High-temperature Reactors (PB-FHRs) transient behaviors. This paper discusses a coupled point kinetics model and a two-dimensional diffusion model. The former is based on the point kinetics equations with six groups of delayed neutrons and the lumped capacitance heat transfer equations. To account for the reflector effect on neutron lifetime, additional (fictional) groups of delayed neutrons are added in the point kinetics equations to represent the thermalized neutrons coming back from the reflectors. The latter is based on coupled multi-group neutron diffusion and finite element heat transfer model. Multi-group cross sections and diffusion coefficients are generated using the Monte Carlo code Serpent and defined as input in COMSOL 5.0.

scholarly journals A transient heat transfer model for high temperature solar thermochemical reactors

2016 ◽  
Vol 41 (4) ◽  
pp. 2307-2325 ◽  
Author(s):  
Like Li ◽  
Chen Chen ◽  
Abhishek Singh ◽  
Nima Rahmatian ◽  
Nick AuYeung ◽  
...  
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Transfer Model ◽  
Transient Heat Transfer ◽  
Transfer Model ◽  
Solar Thermochemical

A heat transfer model of high-temperature nitrogen injection into a methane drainage borehole

2015 ◽  
Vol 24 ◽  
pp. 449-456 ◽  
Author(s):  
Shengcheng Wang ◽  
Fubao Zhou ◽  
Jianhong Kang ◽  
Xinxin Wang ◽  
Haijian Li ◽  
...  
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Nitrogen Injection ◽  
Methane Drainage ◽  
Drainage Borehole

scholarly journals Heat Transfer Model of Multilayer Thermal Protective Clothing for High-Temperature Operation

2019 ◽  
Vol 13 (11) ◽  
pp. 21
Author(s):  
Man-Jing Li ◽  
Mao Zhu ◽  
Jia-Xu Han ◽  
Yuan-Biao Zhang
Keyword(s):  
Heat Transfer ◽  
Heat Conduction ◽  
Steady State ◽  
High Temperature ◽  
Protective Clothing ◽  
Heat Transfer Model ◽  
Heat Radiation ◽  
Transfer Model ◽  
Thermal Protective Clothing ◽  
High Temperature Operation

The thermal protective clothing for high-temperature operation usually consists of three-layer fabrics and a gap called the air layer or Layer IV between Layer III and skin. In order to design more effective thermal protective clothing at less cost, based on the heat transfer principles, we establish heat transfer models of fabrics and air layer, which are one-dimensional nonlinear partial differential equations with constant coefficients. In the three-layer fabrics, we consider the effects of heat conduction and heat radiation in Layer I but only consider heat conduction in Layer II and Layer III. Furthermore, the heat transfer model of Layer IV is decoupled and simplified to steady-state heat conduction in Layer IV and radiation heat transfer on surface of Layer IV. According to the explicit difference schemes for the models, we use the parameters in an experiment which puts a thermal manikin in high-temperature environment for some time and measures the temperature of lateral skin at regular time, to solve the models and calculate the temperature of each layer. With MATLAB, the visual interface of three-dimensional temperature distribution is provided, which is reference for functional design of thermal protective clothing. We also compare the simulation result of skin surface with the experimental data. The results show that at the same position, the temperature rises over time but with decreasing rate and finally reaches the steady state. Moreover, at one moment after reaching the steady state, the temperature has a gradual decrease with the increase of distance from the external environment.

Sign in / Sign up

Export Citation Format

Share Document