Combined with four calculation methods for average heat transfer coefficient of the condensers

the feasibility and rationality of the calculation methods for tube bundle arrangement factor was further discussed.A calculation method which has operability was proposed.Moreover

taking condensers in300 MW units as the example

the tube bundle arrangement correction factors of four tube bundles were calculated

such as the radial inflow ovoid tube bundle

the deformation form of the TEPEE tube bundle

the disguised tree tube bundle and the narrowband downstream tube bundle with double trapezoidal air cooling zone.The values were 1.082

1.038

1.094 and 1.169

respectively.The calculation result indicate the condenser using the narrowband downstream tube bundle with double trapezoidal air cooling zone has the optimal condensing heat transfer performance.