Numerical investigation on startup characteristics of high temperature heat pipe for nuclear reactor

2021 ◽  
Vol 378 ◽  
pp. 111180
Author(s):  
Zeqin Zhang ◽  
Xiaoming Chai ◽  
Chenglong Wang ◽  
Hao Sun ◽  
Dalin Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Heat Pipe ◽  
Numerical Investigation ◽  
Nuclear Reactor ◽  
Temperature Heat ◽  
High Temperature Heat Pipe

Experimental Study on Carbonization of Low-Rank Pulverized Coal with High Temperature Heat Pipe

2014 ◽  
Vol 953-954 ◽  
pp. 1035-1039
Author(s):  
Li Qun Wang ◽  
Zhong Bo Yi ◽  
Zhong Xiang Wei
Keyword(s):  
High Temperature ◽  
Heat Pipe ◽  
Pulverized Coal ◽  
Holding Time ◽  
Raw Material ◽  
Low Rank ◽  
Experimental Result ◽  
Operating Characteristics ◽  
Temperature Heat ◽  
High Temperature Heat Pipe

Aimed at improving the utilization of pulverized coal, high-temperature heat pipe technology was introduced into lignite carbonization.Under the design of power of 10kw semi-industrial pulverized coal carbonization test equipment, Fugu lignite coal as raw material to investigate the operating characteristics of the device and carbonization characteristics. Experimental result shows that the high temperature heat pipes heat steadily and meet the temperature requirement of low-temperature carbonization. With the extension of the holding time, the semi-coke fixed carbon content increasing, but volatile matter vice versa, however, holding time above 60 minutes, the effect of carbonization is not obvious, and the best carbonization time is 30 ~ 60 minutes. The length of the holding time has little effect on gas composition, the content of H2 and CH4 are relatively higher than the rest gas, (H2 + CH4) gas accounted for 70% of the total, the heating value remains at 18.76 ~ 19.22MJ/m3, belongs to medium-high value gas, could provide for industrial and civilian use.

Experiment study on thermal behavior of a horizontal high-temperature heat pipe under motion conditions

2022 ◽  
Vol 165 ◽  
pp. 108760
Author(s):  
Hao Sun ◽  
Xiao Liu ◽  
Haoyu Liao ◽  
Chenglong Wang ◽  
Jing Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Thermal Behavior ◽  
Heat Pipe ◽  
Experiment Study ◽  
Temperature Heat ◽  
High Temperature Heat Pipe

Exploration on application of dredging thermal protection in the leading edge of the wing

2020 ◽  
Vol 34 (14n16) ◽  
pp. 2040105
Author(s):  
Xiao-Jun Zhu ◽  
Feng Li
Keyword(s):  
High Temperature ◽  
Wind Tunnel ◽  
Heat Pipe ◽  
Thermal Protection ◽  
Wind Tunnel Test ◽  
Leading Edge ◽  
Temperature Zone ◽  
Temperature Heat ◽  
Thermal Protection Structure ◽  
High Temperature Heat Pipe

Aiming at the severe aerodynamic heating problem in the leading edge of the hypersonic vehicle, in order to ensure the sharp shape of the leading edge of the wing, a dredging thermal protection structure is proposed, and the built-in high-temperature heat pipe structure is used to provide thermal protection for the leading edge of the wing. By means of numerical simulation and arc wind tunnel test, the dredging thermal protection structure of the leading edge of the wing is analyzed, and the thermal protection effect of the built-in high-temperature heat pipe is obtained. The numerical results show that under certain thermal conditions, the temperature at the leading edge of the wing decreases by 304 K, and the minimum temperature of the tail increases by 130 K. The heat flow is dredged from the high-temperature zone to the low-temperature zone, and the thermal load of the leading edge of the wing is weakened. The same result can be obtained by the arc wind tunnel test, which verifies the accuracy of the numerical method and the feasibility of the dredging thermal protection structure with high-temperature heat pipe embedded in the leading edge of the wing.

Numerical simulation of a small high-temperature heat pipe cooled reactor with CFD methodology

2020 ◽  
Vol 370 ◽  
pp. 110907
Author(s):  
Hao Sun ◽  
Simiao Tang ◽  
Chenglong Wang ◽  
Jing Zhang ◽  
Dalin Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
High Temperature ◽  
Heat Pipe ◽  
Temperature Heat ◽  
High Temperature Heat Pipe
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