Renewable Energy Engineering — Winter 2023

Explain brief present scenario of conventional and renewable energy sources in India.

Explain the following terms with neat sketches: Air Mass, solar azimuth, Hour angle, solar altitude.

Explain construction and working of Pyrheliometer with a neat sketch.

Explain basic operational principles of solar cell.

Explain working of solar still with neat sketch.

What are the main components of flat plate Collector ? Explain the working of a liquid flat Plate Collector

Define Sun rise Hour Angle and Declination Angle also calculate the day length in Ahmedabad (230 N) on 22nd December.

List the basic component of wind mill and draw the wind energy conservation system.

Explain importance of drag and lift force in wind power generation.

Prove that in case of Horizontal Axis Wind Turbine maximum power can develop when exit velocity = 1/3 of3 wind velocity and Pmax = 8 * (ρAVi / 27)

Explain solidity, tip speed ratio and power co-efficient for wind mill

Describe the Biomass conversion technologies.

Explain Construction & working of Floating drum type biogas plant with neat sketch

Write a short note on any one wave energy conversion devices.

Draw neat sketches of Open and Closed cycle OTEC systems.

Explain with sketches the various methods of tidal power generation What are the limitations of each method ?

Explain principle of OTEC.

Explain basic principle of Magneto Hydro Dynamic generation.1

What are the advantages and applications of geothermal energy. Explain with neat sketch the vapour dominated geothermal system.

Define: Net present value, Internal rate of return, Return on Investment

Explain method of simple payback period. What are its limitations?

What are solar ponds? Discuss the working of a solar pond with help of a neat sketch.

What is present worth? How it can be calculated?

Explain initial and annual cost for renewable energy system.

Write a short note on clean development mechanisms