Н.Н. Зубков, А.И. Овчинников, С.И. Каськов
10
Microchannel heat exchanger
© N.N. Zubkov, A.I. Ovchinnikov, S.I. Kas'kov
Bauman Moscow State Technical University, Moscow, 105005, Russia
The paper presents an original design of compact heat exchanger which uses principle of
parallel agent flow through a variety of parallel slotted channels. Heat transfer element
is a both-side finned tube made by deformational cutting method. Coolant flow is orga-
nized in hundreds gaps between external and internal fins on a half of length of a circle
of a heat exchange element. Tests on various modes have shown heat exchanger capacity
up to 7 kW with thermal heat transfer coefficient at 740 W/(m
2
·K).
Keywords:
heat exchanger, deformational cutting, microchannel, finned tube.
REFERENCES
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Zubkov N.N.,
Dr. Sci. (Eng.), professor of the Tool Engineering and Technologies De-
partment of Bauman Moscow State Technical University. He specializes in machining
and manufacturing engineering and is the developer of a new method of machining de-
formational cutting. He proposed and justified new methods and devices for obtaining
new heat-transfer surfaces, including tube internal enhancement, restoring the original
dimensions of worn machine parts by turning, making a capillary porous structures for
