Sensible heat of hot industrial flue gases cannot be recovered by a/an________________?

A. Reynolds number
B. Prandtl number
C. Grashoff number
D. None of these

A. CP μ/a
B. hD/k
C. CP μ/k
D. μ/h CP

A. Colburn
B. Reynolds
C. Prandtl
D. None of these

A. Basket type
B. Horizontal tube
C. Short tube vertical
D. Long tube vertical

A. Steam ejector
B. Entrainment separator
C. Compressor
D. Vacuum pump

A. k/ρCp
B. ρCp/k
C. μCp/a
D. μ/hCp