Agriculture Reference
In-Depth Information
(16) What are the advantages of hydropower-based electricity production?
(17) Discuss the factors affecting potential use of renewable energy in irrigation.
(18) What are the problems and prospects of widespread use (Commercialization)
of renewable energy in your province/state/country?
(19) What are the challenges the renewable energy facing now?
(20) How much energy is required to lift one ha-m of water 40 m up a hill?
(21) The peak period water demand in a crop field is 0.02 m
3
/s and total head
requirement is 4 m. The minimum solar irradiance at the site is 5 MJ/m
2
/day.
Find out the required number of PV array to meet the power for irrigation.
Given, the area of each array is 2 m
2
, efficiency of the solar cells is 20%,
efficiency of the generator is 60, and average bright sunshine hour during the
period is 7 h.
(22) Determine the potentials of electricity generation from wind energy per wind
turbine having average wind speed 25 km/h, area swept by the rotating blades
is 5 m
2
, and turbine efficiency of 55%.
(23) Determine the percentage increase in electricity production from wind energy
in an area if the efficiency of the wind turbine increased from 35 to 55%.
(24) In an area, the average wind speed is 30 km/h. The area swept by the rotating
blades of the wind turbine is 10 m
2
. Determine the wind power to be generated
at that site.
References
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http://www.eia.doe.gov/oiaf/
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http:
www.undp.org/energy/weaover2004.htm