Моделирование тепломассообменных процессов при испытаниях технологического оборудования автономных комплексов

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Моделирование тепломассообменных процессов при испытаниях…
Инженерный журнал: наука и инновации # 10·2016 9
Simulation of heat and mass transfer processes
in technological equipment tests
for autonomous complexes
© I.S. Plotnikov, V.V. Chugunkov
Bauman Moscow State Technical University, Moscow, 105005, Russia
The object of the study is the long-term technological equipment thermal test designed to
ensure the autonomous engineering systems which are functioning at elevated tempera-
ture values. The test is carried out in order to confirm the equipment effective perfor-
mance and reliability in conditions similar to the operating ones. The article considers
the thermal testing technology, based on equipment elements placement in an open tank
with heated water. When organizing long thermal tests, it is required to reduce energy
cost and evaporated water loss from the exposed reservoir surface, which in turn re-
quires that we analyze and determine the outside air heat and mass transfer parameters,
with the equipment located in the open water tank. The article describes temperature
regime and mass transfer mathematical models, gives simulation results during thermal
testing in the open tank filled with water. To reduce the required energy and evaporation
from the open water surface, we assessed the results of placing hollow spherical insula-
tors on the water surface and showed an opportunity to reduce evaporation masses of
more than an order of magnitude by reducing test equipment energy consumption by
more than 2 times.
Keywords: tank, heating and evaporation of water, simulation of heat and mass transfer .
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