Optimization of a Brayton cryocooler for ZBO liquid hydrogen storage in space

Deserranno, Dimitri; Zagarola, M. V.; Li, X.; Mustafi, Shuvo

doi:10.1016/j.cryogenics.2014.04.025

Cited by 23 publications

(7 citation statements)

References 6 publications

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“…The cryogenic turbo-based refrigerator, which consists of the reverse Brayton cycle, Claude cycle, and Kapitza cycle etc., is extensively applied in many areas, such as the controllable nuclear fusion [1], air separation and liquefaction [2], Zero Boil Off liquid hydrogen storage [3], low temperature environmental simulator [4], superconducting [5,6], food industry [7,8], and heat pump [9]. Because of the low operational temperature, the thermal capacity of system components, and so on, the cooling process of a cryogenic turbo-based refrigerator is quite long and complex [4,7].…”

Section: Introductionmentioning

confidence: 99%

Simulation and Evaluation on the Dynamic Performance of a Cryogenic Turbo-Based Reverse Brayton Refrigerator

2019

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In this study, a cryogenic turbo-based refrigerator, with high-speed foil gas bearing turboexpander and plate-fin heat exchanger, was presented. For the cooling process of a cryogenic refrigerator is long and complex, the efficient simulation of the dynamic performance is vital for its evaluation and operation. It is difficult to achieve this purpose. Because the cryogenic refrigerator will go through great temperature changes, resulting in dynamic performances of components going to complexity. In this article, the turboexpander was simulated using CFX, and the matching models with expansion works of consumption and utilization were unified and modified. With numerical calculation of heat exchanger, the dynamic simulation model of the refrigerator was improved via MATLAB code. The calculation method of the required input energy of the refrigerator in cooling processes was proposed based on the simulation and integration. The energy efficiency and economy cost of the refrigerator were evaluated under different operation modes. The refrigerator with a motor was more stable than the one with a blower. The refrigerator was tested under different conditions, the results of which agreed well with simulation data. The simulation method is efficient to serve practical applications, improve energy efficiency and reduce costs.

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Section: Introductionmentioning

confidence: 99%

Simulation and Evaluation on the Dynamic Performance of a Cryogenic Turbo-Based Reverse Brayton Refrigerator

2019

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“…An ongoing cryocooler developmental project is underway as a joint effort between Creare Inc. and Glenn Research Center. The goal of the project is to develop and demonstrate a cryocooler using a turbo-brayton cycle to provide 20 Watts of cooling at 20 K. 8,15 This category of cryocooler is what will be needed for future long duration missions since hydrogen will need to be maintained in the 20 K range to remain in a liquid state. It is important that this technology continues to be supported as it will be required to keep the propellant mass requirements of an exploration vehicle within achievable limits.…”

Section: B Active Systemsmentioning

confidence: 99%

Cryogenic Fluid Management Technology Development for Nuclear Thermal Propulsion

Taylor¹,

Caffrey²,

Hedayat³

et al. 2015

51st AIAA/SAE/ASEE Joint Propulsion Conference

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Cryogenic fluid management technology is critical to the success of future nuclear thermal propulsion powered vehicles and long duration missions. This paper discusses current capabilities in key technologies and their development path. The thermal environment, complicated from the radiation escaping a reactor of a nuclear thermal propulsion system, is examined and analysis presented. The technology development path required for maintaining cryogenic propellants in this environment is reviewed. This paper is intended to encourage and bring attention to the cryogenic fluid management technologies needed to enable nuclear thermal propulsion powered deep space missions.

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“…Hiraia et al [8] developed a turbo-compressor to control the cooling capacity. Deserranno et al [9] designed a Brayton cryocooler for ZBO liquid hydrogen storage in space. With optimization of the compressor and turboalternator, the Brayton cryocooler reached a relatively high COP under different cooling power.…”

Section: Introductionmentioning

confidence: 99%

Study on the coupling performance of a turboexpander compressor applied in cryogenic reverse Brayton air refrigerator

Yang

Chen

et al. 2016

Energy Conversion and Management

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Optimization of a Brayton cryocooler for ZBO liquid hydrogen storage in space

Cited by 23 publications

References 6 publications

Simulation and Evaluation on the Dynamic Performance of a Cryogenic Turbo-Based Reverse Brayton Refrigerator

Simulation and Evaluation on the Dynamic Performance of a Cryogenic Turbo-Based Reverse Brayton Refrigerator

Cryogenic Fluid Management Technology Development for Nuclear Thermal Propulsion

Study on the coupling performance of a turboexpander compressor applied in cryogenic reverse Brayton air refrigerator

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