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U.S. Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433

机译：美国空军研究实验室，Wright-Patterson空军基地，俄亥俄州45433

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This study investigates inclined operational performance for a LHP that includes a fractal based evaporator design. The prototype Fractal Loop Heat Pipe was designed and manufactured by Mikros Manufacturing Inc. and validation tested at NASA Goddard Space Flight Center's Thermal Engineering Branch laboratory. Heat input to the FLHP was supplied via cartridge heaters mounted in a copper block. The copper heater block was placed in intimate contact with the evaporator. The evaporator had a circular cross-sectional area of 0.88 cm~2. Twice distilled, deionized water was used as the working fluid. Thermal performance data was obtained for five different inclinations (evaporator elevation ranging 30° above and below the condenser/subcooler bottom) using a single condenser/subcooler temperature combination (i.e., 10°C/5°C) under degassed conditions (P_(sat) of 25.3 kPa at 22°C). The FLHP demonstrated successful start-ups in each of the test cases performed and had a maximum heat flux of 89 W/cm~2 with the evaporator elevated 15° above the condenser bottom.
机译：本研究调查了LHP的倾斜操作性能，其包括基于分形的蒸发器设计。原型分形环热管由Mikros Manufacturing Inc.设计和制造，并在美国宇航局戈达德太空飞行中心的热工程分公司测试中进行了验证。通过安装在铜块中的墨盒加热器供应到FLHP的热量。将铜加热器块与蒸发器的紧密接触放置。蒸发器的圆形横截面积为0.88cm〜2。两次蒸馏水，去离子水用作工作流体。在脱气条件下使用单个冷凝器/过冷却器温度组合（即10℃/ 5℃）（即10°C / 5℃以上和冷凝器/过冷器底部上方30°上方30°上方和下方）获得热性能数据（即（SAT） 22°C时25.3kPa）。 FLHP在每个测试用例中展示了成功的启动，并且具有89W / cm〜2的最大热通量，蒸发器升高了冷凝器底部的15°。

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