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

Technical Report · Thu Dec 01 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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