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Pyrheliometer and Pyranometer

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Questions and Answers

What is the percentage of helium in the Sun's mass?

30%

25% (correct)

20%

35%

What is the term for the amount of solar radiation reaching the Earth?

Diffuse Radiation

Solar Constant

Insolation (correct)

Global Radiation

What is the value of the Solar Constant (Isc) in kW?

1.253 kW

1.553 kW

1.453 kW

1.353 kW (correct)

What is the instrument used for measuring direct solar radiation and diffuse solar radiation?

Sunshine Recorder Signup and view all the answers

What is the unit of measurement for the total solar radiation received on the Earth's surface?

W/m² Signup and view all the answers

What is the temperature range of a flat plate collector?

40°C to 100°C Signup and view all the answers

What is the thickness of the absorber plate in a flat plate collector?

1 to 2 mm Signup and view all the answers

What is the purpose of insulation in a flat plate collector?

To reduce heat loss Signup and view all the answers

What is the diameter of the tube in a flat plate collector?

1 to 1.5 cm Signup and view all the answers

What is the advantage of a flat plate collector over other types of collectors?

It uses both beam and diffused radiation Signup and view all the answers

What is the efficiency of a flat plate collector?

30 to 50% Signup and view all the answers

What is the typical operating temperature range of a Flat Plate Collector?

Around 200 to 300°C Signup and view all the answers

What is an advantage of a Flat Plate Collector system?

It is a relatively cheap and low-maintenance system. Signup and view all the answers

What is a limitation of a Flat Plate Collector system?

The rate of distillation is usually very slow. Signup and view all the answers

What is a potential environmental concern with a Flat Plate Collector system?

The distillation process waste stream can be a potential source of environmental pollution. Signup and view all the answers

What is a characteristic of a Flat Plate Collector system?

There are no moving parts. Signup and view all the answers

What is a benefit of a Flat Plate Collector system in relation to climate change?

There are climate change adaptation and mitigation benefits. Signup and view all the answers