Earth`s Cryosphere, 2018, Vol. XXII, № 5, p. 51-56
HORIZONTAL EVAPORATOR TUBE (HET) THERMOSYPHONS: PHYSICAL-MATHEMATICAL MODELING AND EXPERIMENTAL DATA, COMPARED
A.A. Ishkov1, G.V. Anikin1, G.M. Dolgikh2, S.N. Okunev2
1Earth Cryosphere Institute, SB RAS, P/O box 1230, Tyumen, 625000, Russia; a.ishkov1988@yandex.ru, anikin@ikz.ru2OOO NPO “Fundamentstroyarkos”, 12, Novatorov str., Tyumen, 625014, Russia; fsa@npo-fsa.ru
New experiments have provided data necessary for designing thermosyphons with horizontal evaporator tubes (HET systems). A physical-mathematical model with different input parameters was used to describe the operation of a HET system in varions modifications. The model includes temperature excess in the working fluid as a correction added to the previous model version to improve the fit between the computed and measured average evaporator temperatures. The excess temperatures have been estimated for different configurations of HET systems charged with ammonia.
Thermal stabilization, soil, temperature field, overheating, thermosyphon, HET system