Thermal hydrodynamic characteristics of coil heat exchangers of the throttle stage of cryogenic helium plants
The authors examine a coil heat exchanger of the throttle stage of cryogenic helium plants made of tubes with wire fins. The coil heat exchanger represents a bundle of tubes with wire fins encased in a shell and is shown. This heat exchanger design offers a pure countercurrent flow to achieve small temperature differences. The coefficient of hydraulic resistance was investigated under isothermal conditions. The geometrical parameters of the experimental coil heat exchangers with different finning parameters, the composition of the bundle, and the diameter of the coil are given. The investigated designs of coil heat exchangers are being used in the throttle stage of cryogenic helium plants with low and medium refrigerating capacities and as supercoolers in air fractionation units with low refrigerating capacities. Their applications may be expanded to microcryogenic technology.
- OSTI ID:
- 5843939
- Journal Information:
- Chem. Pet. Eng. (Engl. Transl.); (United States), Vol. 23:1-2; Other Information: Translated from Khimicheskoe i Neftyanoe Mashimostroenie; 23: No. 1, 31-33(Jan 1987)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Propane Liquefaction with an Active Magnetic Regenerative Liquefier
Design, fabrication, commissioning, and testing of a 250 g/s, 2-K helium cold compressor system
Related Subjects
GENERAL PHYSICS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
HEAT EXCHANGERS
HEAT TRANSFER
HYDRAULICS
PARAMETRIC ANALYSIS
THERMAL EFFICIENCY
HELIUM DILUTION REFRIGERATORS
COLD RECOVERY
COUNTERFLOW SYSTEMS
CRYOGENICS
FINS
HEAT FLUX
HELIUM
HYDRAULIC CONDUCTIVITY
OPTIMIZATION
REYNOLDS NUMBER
TUBES
EFFICIENCY
ELEMENTS
ENERGY TRANSFER
FLUID MECHANICS
FLUIDS
GASES
MECHANICS
NONMETALS
RARE GASES
REFRIGERATORS
420201* - Engineering- Cryogenic Equipment & Devices
320303 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes
320304 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization