18 Questions
What is the main purpose of a Flat Plate Collector?
To convert solar energy into heat energy
Which type of solar collector is suitable for high temperature applications?
Concentrating/ Sun-Tracking
What is the main advantage of Concentrating/ Sun-Tracking solar collectors?
They track the sun, increasing radiation flux
Which working fluids are commonly used in Flat Plate Collectors?
Water and air
What is the function of the concave reflecting surfaces in Concentrating Solar Collectors?
To intercept and focus solar beams to increase radiation flux
In which type of solar collector does atmospheric turbidity have a greater impact on performance?
Concentrating/ Sun-Tracking
What is the primary function of PV modules?
Convert sunlight into electricity
Which material is commonly used in the construction of PV cells?
Silicon
What does doping in the context of PV cells involve?
Adding atoms with different number of electrons to create an unbalanced number of electrons to the base material
What is the main function of a P-N junction in a PV cell?
Creates a potential barrier and electric field for unidirectional flow of electrons
What is the result of electrons moving to the p-type silicon and holes to the n-type silicon in a PV cell?
Builds up a fixed potential barrier at the junction opposing further movement of free carriers
In a solar thermal power plant, what is the primary role of photovoltaics?
Converting sunlight into electricity
What is the main purpose of a solar collector?
To absorb solar radiation and convert it into heat
Which of the following is a common agricultural application of solar energy?
Using solar energy for grain drying
What does solar-thermal conversion involve?
Converting solar radiation to heat for various applications
What is the impact of atmospheric turbidity on solar radiation?
It reduces the intensity of solar radiation reaching the Earth's surface
In crop and grain drying methods, what role do simple natural convection-type dryers play?
They use solar energy to facilitate drying through air circulation
How does a solar cabinet-type dryer function in crop and grain drying?
By employing a closed system that uses solar energy to dry crops efficiently
Test your knowledge of solar power, the Sun's structure, electromagnetic spectrum, factors affecting solar radiation, and the solar constant. Explore how renewable energy options rely on the Sun's energy. Learn about the intensity of radiation, astronomical factors, and the transparency of the atmosphere.
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