Predictions of convective losses from a solar cavity receiver

Conference · Sat Dec 01 04:00:00 EST 1979

OSTI ID:6991406

Eyler, L. L.

Convective losses arising from buoyancy driven flow were calculated for a two-dimensional model simulating a solar cavity receiver. The TEMPEST code, capable of fully three-dimensional coupled thermal-hydraulic transient calculations, was used for the simulation. Predicted velocity and temperature results for a 2.59 m deep by 2.88 m high rectangular cavity with an aperture opening of 1.72 m were used to determine convective losses for prescribed interior wall temperatures and cavity orientation. Velocity vector and temperature isotherm plots were used to analyze flow characteristics.

• Research Organization: Battelle Pacific Northwest Labs., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6991406
• Report Number(s): PNL-SA-8070; CONF-800804-35
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140702* -- Solar Thermal Power Systems-- Central Receiver
141000 -- Solar Collectors & Concentrators
APERTURES
CAVITY RECEIVERS
COMPUTERIZED SIMULATION
CONVECTION
DIMENSIONS
ENERGY LOSSES
HEAT FLOW
HEAT LOSSES
ISOTHERM
LOSSES
MATHEMATICAL MODELS
OPENINGS
SIMULATION
SOLAR RECEIVERS
THERMAL ANALYSIS
TWO-DIMENSIONAL CALCULATIONS
VELOCITY