Development of an interferometer for natural convection enhancement research, 1 January-31 December 1984
Technical Report
·
OSTI ID:6481192
Natural convection heat transfer from vertical storage walls and absorbing surfaces plays an important role in delivering solar energy throughout a passively heated or cooled building. In many building geometries the heat transfer at these surfaces can limit performance of the building. Insufficient heat transfer can cause overheating of attached sunspaces and oversizing of the glazed/absorber area, directly increasing cost. If the natural convection coefficient could be increased simply, overheating could be reduced and system costs could be reduced. This report describes progress in developing an instrument for investigating boundary layers on vertical heated surfaces subjected to disturbances. The instrument, a Mach-Zehnder interferometer, is a standard tool used to investigate natural flows because it is nonintrusive, gives flow visualization capabilities, and gives quantitative information on temperature distribution and heat flux.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 6481192
- Report Number(s):
- SERI/PR-252-2598; ON: DE85016895
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ATTACHED GREENHOUSES
BUILDINGS
CONVECTION
DESIGN
ENERGY SYSTEMS
ENERGY TRANSFER
EQUIPMENT
GREENHOUSES
HEAT TRANSFER
HEATING SYSTEMS
INTERFEROMETERS
MACH-ZEHNDER INTERFEROMETER
MASS TRANSFER
MEASURING INSTRUMENTS
NATURAL CONVECTION
PASSIVE SOLAR HEATING SYSTEMS
SOLAR EQUIPMENT
SOLAR HEATING SYSTEMS
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ATTACHED GREENHOUSES
BUILDINGS
CONVECTION
DESIGN
ENERGY SYSTEMS
ENERGY TRANSFER
EQUIPMENT
GREENHOUSES
HEAT TRANSFER
HEATING SYSTEMS
INTERFEROMETERS
MACH-ZEHNDER INTERFEROMETER
MASS TRANSFER
MEASURING INSTRUMENTS
NATURAL CONVECTION
PASSIVE SOLAR HEATING SYSTEMS
SOLAR EQUIPMENT
SOLAR HEATING SYSTEMS