
Heat transfer in coiled type superheater of moisture separator-reheater of turbines at the nuclear power plant
Author(s) -
Mikle Egorov,
A. A. Kalyutik,
Irina Akhmetova,
S. O. Makoev
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/288/1/012080
Subject(s) - superheater , boiler (water heating) , nuclear engineering , superheated steam , heat transfer , heat recovery steam generator , steam electric power station , materials science , turbine , steam drum , steam turbine , surface condenser , separator (oil production) , feedwater heater , boiler feedwater , superheating , thermal power station , combined cycle , environmental science , mechanical engineering , waste management , engineering , mechanics , thermodynamics , physics
The reheating part of the moisture separator-reheater (MSR) of nuclear power plant (NPP) steam turbine occupies a significant part of MSR volume and requires large consumption of metal. The superheating of low pressure steam provides by the high pressure steam condensation. This steam supplies partly from turbine inlet and partly from turbine stage bleeding because of two superheater stages. The significantly less heat transfer intensity at the single-phase side of reheater comparatively with condensation side requires intensification of heat transfer from the heated-steam. For such goal the different methods can be used: for instance the cross flow of the coiled tubes and finning of straight tubes bundles. Also is perspective the usage of artificial roughness in form of small “moons” and other types of artificial roughnesses.