Simulation of a solar evacuated collector with black fluid

Conference · Wed Jun 01 00:00:00 EDT 1983 · Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)

OSTI ID:5150093

Samano, A; Fernandez, A

The use of black fluids in an evacuated tube solar collector for intermediate temperatures is analyzed, and an operation mathematical model is proposed. The model is unidimensional and the integral equation for the mass, momentum and energy conservation balances are used. An expression for the pressure drop in the tube is obtained by integrating the momentum equation. The energy conservation equation is integrated analytically for constant insolation and numerically for transient insolation. An adjustment in the global emissivity value for the black fluid was made to make the representation in the mathematical model, and a discussion between the calculated and the experimental results is made.

• Research Organization: Departamento de Energia Solar, Instituto de Investigaciones en Materiales, Universidad Autonoma de Mexico
• OSTI ID: 5150093
• Report Number(s): CONF-830622-
• Journal Information: Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States), Vol. 6; Conference: American Solar Energy Society meeting, Minneapolis, MN, USA, 1 Jun 1983
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
EVACUATED TUBE COLLECTORS
COMPUTERIZED SIMULATION
PERFORMANCE
BLACK LIQUIDS
EQUATIONS
MATHEMATICAL MODELS
EQUIPMENT
EVACUATED COLLECTORS
FLUIDS
LIQUIDS
SIMULATION
SOLAR COLLECTORS
SOLAR EQUIPMENT
141000* - Solar Collectors & Concentrators