Сибирский журнал науки и технологий
ISSN 2587-6066

Vestnik sibsau
Vestnik sibsau
Vestnik sibsau
Vestnik sibsau

UDK 629.78 Doi: 10.31772/2587-6066-2018-19-3-445-451
TWO-DIMENSIONAL THERMAL MODEL OF THE THERMAL CONTROL SYSTEM FOR NONHERMETIC FORMATION SPACECRAFT
F. V. Tanasienko*, Y. N. Shevchenko, A. V. Delkov, A. A. Kishkin
Reshetnev Siberian State University of Science and Technology, 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation. *E-mail: spsp99@mail.ru
Based on the proposed computational model including a two-dimensional system of equations of thermal balance characteristic of the surface of thermal control system of nonhermetic formation spacecraft the algorithm and the calculation program of the temperature control system are developed. It allows to calculate integrated thermal parameters and conduct simulations of the system response. We consider the case of a two-dimensional problem, when arising temperature gradients in the transverse direction (Y-axis) and longitudinal direction (X-axis) is taken into account, while the conductive heat transfer inside the skin along the X-axis of the profile of the liquid circuit of the thermal control system is neglected. In this case the transverse gradient (along the Y-axis) is formed by Fourier heat conduction equations through characteristic surfaces, while the longitudinal gradient (along the X-axis) is determined by the heat and mass transfer processes by the refrigerant flow in the liquid ring circuit. The number of docking thermal balances (equations) and, accordingly, the determined temperatures are correlated by the constructive elements of the spacecraft thermal control system: radiation surfaces (N – North, S – South); structural honeycomb panels; heat pipes; liquid circuit.
Keywords: unpressurized performance spacecraft, radiation surface, liquid circuit, thermal control system, heat balance equation.
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Tanasienko Fedor Vladimirovich – postgraduate student, Department of Refrigeration, Cryogenic Engineering and Conditioning, Reshetnev Siberian State University of Science and Technology. E-mail: prometey_86@mail.ru.

Shevchenko Yulia Nikolaevna – head of the laboratory, Department of Refrigeration, Cryogenic Engineering and Conditioning, Reshetnev Siberian State University of Science and Technology. E-mail: delkov-mx01@mail.ru.

Delkov Aleksandr Viktorovich – Cand. Sc., Docent, Department of Refrigeration, Cryogenic Engineering and Conditioning, Reshetnev Siberian State University of Science and Technology. E-mail: delkov-mx01@mail.ru.

Kishkin Alexander Anatolievich – Dr. Sc., professor, head of Department of Refrigeration, Cryogenic Engineering and Conditioning, Reshetnev Siberian State University of Science and Technology. E-mail: spsp99@mail.ru.


  TWO-DIMENSIONAL THERMAL MODEL OF THE THERMAL CONTROL SYSTEM FOR NONHERMETIC FORMATION SPACECRAFT