Space-Applied Aluminum Profiled Heat Pipes With Axial Grooves: Experiments and Simulation

Rassamakin, B. M.; Khairnasov, Sergii; Rassamakin, Audrey; Alpherova, Olga

doi:10.1615/heatpipescietech.v1.i4.20

Cited by 7 publications

(3 citation statements)

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“…Для Ω-образных канавок это требо-вание проблематично, так как наиболее узкая их часть, соединяющая артерию с паровым про-странством, обеспечивает максимальный ка-пиллярный напор и создает одновременно вы-сокие вязкостные потери давления в жидком потоке теплоносителя. Поэтому в основу вы-бора геометрических размеров КС исследован-ных АКТТ положены аналитические и матема-тические модели [11], основанные на анализе процессов тепломассопереноса в таких КС. Внешние диаметры и формы профилей опре-делялись возможностью их использования в космической технике.…”

Section: конструкции и геометрические характери-стики исследованных тunclassified

“…Сегодня наиболее распространены АКТТ с трапециевидными [2,10], прямоугольными [2,10] и -образными канавками [11]. Такие АКТТ апробированы в условиях космоса и обеспечи-вают стабильное функционирование РЭА.…”

Section: Introductionunclassified

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Heat Transfer in Evaporation Zone of Ammonia Aluminium Heat Pipes

Pis’mennyi¹,

Khairnasov²,

Rassamakin³

2017

Research Bulletin of the National Technical University of Ukraine "Kyiv Politechnic Institute"

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Section: конструкции и геометрические характери-стики исследованных тunclassified

Section: Introductionunclassified

Heat Transfer in Evaporation Zone of Ammonia Aluminium Heat Pipes

Pis’mennyi¹,

Khairnasov²,

Rassamakin³

2017

Research Bulletin of the National Technical University of Ukraine "Kyiv Politechnic Institute"

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“…In order to solve the above mentioned problems, the authors propose to apply extruded aluminum HPs to the constructions of solar thermal collectors [3,4]. The other reasons for using aluminum alloy made HPs in SCs are the following: They are cheaper, lighter and stronger than copper ones.…”

Section: Introductionmentioning

confidence: 99%

Solar Collectors of Buildings Facade Based on Aluminum Heat Pipes with Colored Coating

Khairnasov¹,

Rassamakin²,

Rostyslav³

et al. 2013

JCEA

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A variety of liquid thermal solar collectors designs used for water heating have been developed by the previous researchers. But the majority of them do not meet the requirements on small weight, easy assembling and installing, versatility, scalability and adaptability of the design, which are particularly important when they are facade integrated. In order to avoid the above mentioned drawbacks of the liquid thermal collectors, the authors propose to apply to them extruded aluminum alloy made heat pipes of originally designed cross-sectional profile with wide fins and longitudinal grooves. Such solar collectors could be a good solution for building facade and roof integration, because they are assembled of several standard and independent, hermetically sealed and lightweight modules, easy mounted and "dry" connected to the main pipeline. At that, their thermal performances are not worse than of the other known ones made of heavier and more expensive copper with higher thermal conductance, or having entire rigid designs. Some variants of the developed solar collectors shaping of the assembled modules for building facade or roof integration are proposed. Variously colored coatings to the absorbers are developed and made of carbon-siliceous nano-composites by means of sol-gel method. Their optical performances were compared with "anodized black". It is stated that colored coatings have a good prospect in thermal SCs (solar collectors) adaptation to building facades decoration, but the works on study and upgrade of their performances should be continued.

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