Testing of Liquid Collectors

  • S. C. Mullick


Unlike a centrifugal pump (see appendix — I) or a D.C.shunt generator, the performance of a solar collector is a strong function of the climatic conditions, and it is not quite proper to quote its numerical value. However, it is possible to specify the collector parameters — the optical efficiency factor and the heat loss factor — that are relatively independent of the climatic variables. The study—state performance of a solar collector can be described by a simple parametric equation, as a function of the climatic variables. The efficiency of conversion of solar energy into thermal energy is given by
$$\eta = {\text{F}}^{\prime}[\eta _{\text{o}} - \frac{{{\text{U}}_{\text{L}} (\bar{\text{T}}_{\text{f}} - {\text{T}}_{\text{a}} )}} {{{\text{I}}_{\dagger} }}]$$


Centrifugal Pump Fluid Temperature Water Flow Rate Solar Collector Liquid Flow Rate 
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Copyright information

© D. Reidel Publishing Company 1987

Authors and Affiliations

  • S. C. Mullick
    • 1
  1. 1.Centre of Energy StudiesIndian Institute of TechnologyHauz Khas, New DelhiIndia

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