ESE 2021 ME Technical Quiz || Solar Energy

Consider the following statements:

1. Airmass Number (m) is the ratio of vertical path length of atmosphere to the path length traversed by beam radiation.

2. Zero value of m signifies no atmosphere.

3. m is always less than and Equal to one.

Which of the following statements is/are correct?

Statement I: Solar Radiation propagating in a straight line and received at Earth’s surface without direction change is called Beam radiation.

Statement II: Pyranometer is used to measure beam Radiation

Statement I: Concentrating type collectors result in high temperature as compared to Flat plate Collectors.

Statement II: In concentrating solar type Collectors, all the diffuse solar radiation is Converged from large area into smaller area.

A flat plate collector is 150 cm wide and 180 cm high and is oriented such that it is perpendicular to the sun rays. Its active are is 90% of the panel size. If it is in a location that receives solar insolation of 1000 W/m² peak, the peak power delivered to the area of the collector will be