Wave

Question 1

What is the benefit of wave power over wind power?

Answer 1

Wave energy is more constant than wind, from which it is derived.

Question 2

What is the expression for the power contained in a wave?

Answer 2

P=rhog^2a^2T/8pi
where T=sqrt(2pilambda/g)
and a = wave amplitude

Question 3

What are the basic requirements for the design of ocean wave conversion technology?

Answer 3

It must be able to operate in a hostile environment,where access for maintenance will be problematic. It must provide means for efficient conversion of low frequency cycle wave motion into electricity. It must survive the ‘50 year storm’ at it’s chosen site.

Question 4

What are 3 classification of wave energy devices?

Answer 4

1. Passive - guides waves to spill over into elevated reservoirs which drain through turbines.
2. Relative motion - waves induce relative motion between parts of a structure. This motion is then employed to transfer a working fluid (water, air or hydraulic oil) around a circuit, driving a rotary machine in the process.
3. Oscillating water column- sea water admitted to a chamber which is vented to the atmosphere.