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Advances in Heat Transfer Engineering

ISSN:
1-56700-198-1 (Print)

HEAT TRANSFER AT PROPANE POOL BOILING AND EVAPORATION IN CAPILLARY-POROUS EVAPORATORS

Leonard L. Vasiliev
Porous Media Laboratory Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus 15, Str. P.Brovka, 220072 Minsk, Belarus

Alexander S. Zhuravlyov
Porous Media Laboratory Luikov Heat and Mass Transfer Institute National Academy of Sciences of Belarus, P. Brovka Str. 15,220072 Minsk, Republic of Belarus

Mikhail N. Novikov
Luikov Heat & Mass Transfer Institute, National Academy of Sciences of Belarus, Porous Media Laboratory, P. Brovka Str. 15, 220072 Minsk, Belarus

Alexander Shapovalov
Porous Media Laboratory, A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus

Vitali Litvinenko
Gomel State Technical University, Gomel, Belarus

Abstract

Pool boiling and evaporation heat transfer of propane on cylindrical surfaces with stainless steel sprayed and sintered copper powder porous coatings experimentally analyzed at the heal flux ranges 102 to 105 W/m2. Evaporative heal transfer of propane on the same porous cylindrical surfaces with capillary suction was determined to compare with the pool boiling intensity. It depends on permeability, porosity, thermal conductivity of the capillary-porous structure and in some cases is 2−3 times higher than pool boiling heal transfer for the same heat flux interval.