CONVECTION HEAT TRANSFER

Many situations involving single-phase convection at cryogenic temperatures can be solved using techniques applicable at conventional temperature levels. One in­ teresting problem in many cryogenic systems is heat transfer in the near-critical region. This condition is not difficult to achieve because the critical pressure for hydrogen, for example, is only 12.98 atm (1315 kPa or 198 psia). In this chap­ ter, the general problems involving single-phase convection and special problems involving heat transfer in the near-critical region will be examined.