MODIFIED-COLLINS CRYOCOOLER FOR ZERO-BOILOFF STORAGE OF CRYOGENIC FUELS IN SPACE

被引：0

作者：

Hannon, C. L. ^{[1
]}

Krass, B. ^{[1
]}

Hogan, J. ^{[2
]}

Brisson, J. G. ^{[2
]}

机构：

[1] Adv Mech Technol Inc, 176 Waltham St, Watertown, MA 02472 USA

[2] MIT, Cambridge, MA 02139 USA

来源：

ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B | 2012年 / 1434卷

关键词：

D O I：

10.1063/1.4706988

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Future lunar and planetary explorations will require the storage of cryogenic propellants, particularly liquid oxygen (LOX) and liquid hydrogen (LH2), in low earth orbit (LEO) for periods of time ranging from days to months, and possibly longer. Without careful thermal management, significant quantities of stored liquid cryogens can be lost due to boil-off. Boil-off can be minimized by a variety of passive means including insulation, sun shades and passive radiational cooling. However, it has been shown that active cooling using space cryocoolers has the potential to result in Zero Boil-Off (ZBO) and the launch-mass savings using active cooling exceeds that of passive cooling of LOX for mission durations in LEO of less than 1 week, and for LH2 after about 2 months in LEO. Large-scale DC-flow cryogenic refrigeration systems operate at a fraction of the specific power levels required by small-scale AC-flow cryocoolers. The efficiency advantage of DC-flow cryogenic cycles motivates the current development of a cryocooler based on a modification of the Collins Cycle. The modified Collins cycle design employs piston type expanders that support high operating pressure ratios, electromagnetic valves that enable "floating pistons", and recuperative heat transfer. This paper will describe the design of a prototype Modified-Collins cryocooler for ZBO storage of cryogenic fuels in space.

引用

页码：757 / 764

页数：8

共 5 条

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ADVANCES IN CRYOGENIC ENGINEERING: PROCEEDINGS OF THE CRYOGENIC ENGINEERING CONFERENCE, CEC 2023, 2024, 1301
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Plachta, D.
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CRYOGENICS, 2018, 94 : 95 - 102

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