419 Result(s)
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Chapter and Conference Paper
A Novel Segmented Non-Uniform Finned Channel of Supercritical LNG Applicable for Printed Circuit Heat Exchanger
In order to enhance the heat transfer capacity of liquefied natural gas (LNG) in a printed circuit plate heat exchanger (PCHE). In this paper, the PCHE with non-uniform airfoil fin channels is proposed and num...
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Chapter and Conference Paper
Investigation on a Free-Piston Stirling Cryocooler at −80 ℃ for China Space Station
A free-piston Stirling cooler at −80℃ for China Space Station has been successfully developed, which has features of high frequency, short regenerator, and high voltage. The cooler can provide a cooling capaci...
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Chapter and Conference Paper
Wetting Behavior of LBE on 316L and T91 Surfaces with Different Roughness
In this paper, two typical candidate structural materials of 316L and T91 with different surface roughnesses were studied at temperatures from 200–500 ℃. The surface with different roughness was prepared by me...
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Chapter and Conference Paper
Analysis of the Application of Uncooled and Cooled Infrared Detection Technology in Intelligent Vehicles
With the advancement of vehicle intelligence, more and more sensors are equipped in intelligent vehicles, while night vision device based on infrared detection technology, as a kind of vehicle sensor, has not ...
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Chapter and Conference Paper
Numerical Simulation of 1.8 K–300 K Sub-Atmospheric Helium Heating Device
The 1.8 K–300 K sub-atmospheric helium heating device is an important component of 1.8 K cryogenic test platform. The process design of the 1.8 K–300 K sub-atmospheric helium heating device is completed. A thr...
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Chapter and Conference Paper
Honeypot for Cybersecurity Threat Intelligence
Small and Medium-sized Enterprises (SMEs) have limited resources to guard their IT infrastructures because of high upfront costs and fully engaged manpower, resulting in lack of focus on cybersecurity. Though ...
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Chapter and Conference Paper
Progress in and Outlook for Work Recovery Type Pulse Tube Refrigerator
Pulse tube refrigerator is a cryocooler used in many applications. After the long-time development, the efficiency is still lower than that of Stirling refrigerator. And the performance is much poorer when ref...
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Chapter and Conference Paper
Experimental Research About Displacer Type Micro Pulse Tube Cryocooler
Investigations of phase shifters and power recovery mechanisms are of sustainable interest for develo** Stirling pulse tube cryocoolers (SPTC) with more compact design and higher efficiency. The warm displac...
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Chapter and Conference Paper
Disorder Induced by Gamma Irradiation in Borosilicate Glasses
Vitrification is the mainstream method for the immobilization of high-level radioactive waste (HLW). As the common matrix of vitrification, the borosilicate glass and its irradiation tolerance have been widely...
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Chapter and Conference Paper
Research on Public Communication of Small Reactor
Based on the conclusions of small reactor environmental impact assessment and social stability risk assessment of small reactors, this paper conducts a special study on the public communication of small reacto...
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Chapter and Conference Paper
Optimization of Two-Stage High-Efficiency Pulse Tube Cryocooler for Space Application at 20K
A high-efficiency pulse tube cryocooler at 20 K is a prerequisite for closed JT coolers to obtain 100 mW@4.2 K in space. Therefore, it is of strategic importance to develop a two-stage pulse tube cryocooler wi...
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Chapter and Conference Paper
Investigation on Dynamic Pressure Characteristics of a 5–7 K Three-Stage Stirling-Type Pulse Tube Cryocooler
The temperature range of 5–7 K is important for advanced high sensitivity space detectors. The multi-stage Stirling-type pulse tube cryocooler and J-T cryocooler were finally used in James Webb Space Telescope...
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Chapter and Conference Paper
Optimization on Design of Logic Degradation for Safety I&C System of Nuclear Power Plant
As a conservative strategy to deal with instrument and control signal failure, logic degradation design has been often used in the safety instrument and control (I&C) system of nuclear power plants. For exampl...
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Chapter and Conference Paper
Failure Analysis of Valve Seat Cracking of Pneumatic Control Valve in Nuclear Power Plant
Cracks were found on the alloy layer of the valve seat when a pneumatic control valve was disassembled during the overhaul of the nuclear power plant, and the erosion corrosion traces were found on the surface...
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Chapter and Conference Paper
Influence of Zirconia Addition on the Leaching Stability of Borosilicate Glass
Immobilization of high-level radioactive wastes (HLW) in borosilicate glass for deep geological disposal has been widely used in the treatment of HLW around the world. The chemical durability of borosilicate g...
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Chapter and Conference Paper
Simulation and Analysis of Cryogenic System for FFAG Superconducting Magnets
GeV-class proton beam with an average power of several megawatts have many important applications in particle physics towards the intensity frontier, as well as in the advanced energy, and material science. In...
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Chapter and Conference Paper
Optimization Control of Power Supply for Ion Propulsion System in Multi-operating Points Mode
Space probe is one of the important areas for commercial space industry. In order to make the ion propulsion system have good control performance under the regulation of wide voltage and wide power, a nonlinea...
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Chapter and Conference Paper
The Optimization on the Performance for a Fast Cooling Miniature JT Cooler
As the infrared guidance missile becomes progressively more important in modern war, the demand for the fast cooling miniature JT cooler is increasingly urgent. Shortening the cool-down time and extending the ...
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Chapter and Conference Paper
Research on the Alarm Threshold for Steam Generator Tube Leak Monitoring of Small Modular Reactor
On the basis of fully learning from the existing principles of leak monitoring alarm thresholds setting of the steam generator tube in pressurized water reactor nuclear power plants, the principle of setting f...
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Chapter and Conference Paper
A 150 K Micro Linear Split Stirling Cryocooler for High Operating Temperature Infrared Detectors
To meet the application requirements of high operating temperature (HOT) infrared detectors, a 150 K micro linear split Stirling cryocooler with small size, light weight and good performance (SWaP3) was developed...
