Shell-and-tube exchangers: pressure drop and heat transfer in shellside downflow condensation.
Abstract:ESDU 84023 considers tubular condensers in which the coolant flows in horizontal tubes across which a pure vapour flows. It gives methods, derived empirically, for estimating total pressure drop (in two contributions, local pressure gradient across the tube bank as a function of quality, that is ratio of vapour mass flow rate to total mass flow rate, and nozzle pressure drop) and overall heat transfer (from the local shellside coefficient as a function of quality together with contributions from coolant, tube, and fouling). A step-by-step calculation procedure based on those methods shows how they may be used to check the adequacy of a design to meet a performance requirement, to design a condenser to meet thermal requirements and pressure drop limitations, to estimate the outlet conditions from a given condenser, or to evaluate test results on a condenser to determine, for example, its fouling resistance.
|Data Item ESDU 84023|
- Aircraft Noise
- Fatigue - Endurance Data
- Fatigue - Fracture Mechanics
- Fluid Mechanics, Internal Flow
- Fluid Mechanics, Internal Flow (Aerospace)
- Heat Transfer
- Physical Data, Chemical Engineering
- Stress and Strength
- Transonic Aerodynamics
- Vibration and Acoustic Fatigue
- Wind Engineering
Aerospace Materials Data
Additional Engineering References