Heat transfer in packed beds at low Reynolds number. Final report

Technical Report · Thu Dec 01 00:00:00 EST 1977

OSTI ID:5949321

Prenger, Jr, F C

Results from an experimental investigation of heat transfer in packed beds of low thermal conductivity particles is presented. At low Reynolds number flows through beds of fine particles the gas temperature and solids temperature differ substantially. An analytical model is proposed which treats this mechanism and is consistent with experimental results. A test apparatus was constructed and experimental results were obtained using air flowing through packed beds of sodium chloride and calcium chloride. Four heat transfer parameters were identified; bed thermal conductivity, heat transfer coefficient between the interstitial gas and the solids, and two heat transfer coefficients for the coolant tubes; one between the coolant tubes and the interstitial gas and one between the coolant tubes and the solid particles. Each coefficient is presented in terms of a single correlating parameter. A comparison between the analytical model and the test data for selected cases is also presented.

• Research Organization: Martin Marietta Corp., Denver, CO (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 5949321
• Report Number(s): SAND-78-8175; TRN: 79-020051
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
PACKED BED
HEAT TRANSFER
AIR
CALCIUM CHLORIDES
EXPERIMENTAL DATA
FLUID FLOW
GRAPHS
HEAT EXCHANGERS
MATHEMATICAL MODELS
NUSSELT NUMBER
PARTICLES
REYNOLDS NUMBER
SODIUM CHLORIDES
TABLES
TEST FACILITIES
THEORETICAL DATA
TUBES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
DATA
DATA FORMS
ENERGY TRANSFER
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
NUMERICAL DATA
SODIUM COMPOUNDS
420200* - Engineering- Facilities
Equipment
& Techniques
420400 - Engineering- Heat Transfer & Fluid Flow