Preliminary evaluation of the volumetric air-heating receiver
The results are reported of a preliminary evaluation of the Volumetric Air Heating Receiver (VAHR). The VAHR is an innovative air heating receiver design for application with point focus central receiver power generation systems or industrial process heat systems. The VAHR concept consists of an array of fin-shaped pins arranged in concentric cylindrical rows around an inlet manifold. Solar radiation from a surrounding heliostat field is focused on the VAHR and is absorbd by the pins. Air is drawn through the array by means of an induced draft fan and is heated by contact with the pins. The outer two rows consist of wedge-shaped pins which reflect radiation into the receiver and reduce reradiation and reflection losses from the interior of the receiver. The interior rows consist of absorbing pins which absorb the solar radiation and transfer the energy to the air being drawn past the pins. Performance calculations indicate that reflection and reradiation losses can be dramatically reduced, when compared to other receiver designs. Convective losses were more difficult to predict, but it appears that convective losses can also be reduced. Combined reflection and reradiation losses were below 2.4% for all receiver designs, including a design suitable for producing process hot air at 1093/sup 0/C.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5352855
- Report Number(s):
- PNL-SA-9295; CONF-811101-24; ON: DE82005881
- Resource Relation:
- Conference: Winter annual meeting of the ASME Technology and Society Division, Washington, DC, USA, 15 Nov 1981
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CENTRAL RECEIVERS
DESIGN
FINS
PERFORMANCE
AIR FLOW
BLOWERS
CONVECTION
HEAT LOSSES
OPTICAL PROPERTIES
RADIANT HEAT TRANSFER
REFLECTION
SOLAR AIR HEATERS
SOLAR PROCESS HEAT
TOWER FOCUS POWER PLANTS
AIR HEATERS
ENERGY
ENERGY LOSSES
ENERGY TRANSFER
EQUIPMENT
FLUID FLOW
GAS FLOW
HEAT
HEAT TRANSFER
HEATERS
LOSSES
PHYSICAL PROPERTIES
POWER PLANTS
PROCESS HEAT
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR POWER PLANTS
SOLAR RECEIVERS
SOLAR THERMAL POWER PLANTS
THERMAL POWER PLANTS
140702* - Solar Thermal Power Systems- Central Receiver
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