A company decided to develop low-cost photo-voltaic solar-energy
cells. It decided on two development choices: a fully automatic
line for $800,000 capable of producing 200,000 cells/year for a
profit of $1/cell, or a semi-automatic line for $500,000 capable of
producing 120,000 cells/year for a profit $1/cell. It is estimated
that both lines will last for five years and will have a book value
at the end of the five years of 10 percent. Assume both lines will
be working to...
How can distributed energy technologies like solar, energy
efficiency and storage serve as a “Plan B” for getting rid of coal
plants in the US if Congress won’t pass a carbon tax or a cap and
trade policy?
The Ivanpah Solar Electric Generating System is the largest
solar thermal power- tower facility in the world. It collects 1321
MW of solar thermal energy to heat special collectors to 566 °C.
The thermal energy is then used to make steam to operate an
electric generator. (a) What is the maximum efficiency of the power
plant, taking the cold reservoir to be the surrounding environment
at 12 °C. (b) How much mechanical work (electricity) could the
facility generate if it...
Renewable sources of energy include photovoltaic,
solar thermal electric, wind, geothermal, and hydroelectric. of
these five types of energy, which one shows the greatest promise
for economic viability over the next 10 years. why do you say this,
and what obstacles, if any must be overcome to make this a
reality?
A system for the storage of thermal energy is to be designed
using an underground tank of water. The tank is buried at a depth
of 3 m and is a cube of 1 m on each side. The water in the tank is
heated by circulating it through a solar energy collection system.
A given heat input to the water may be assumed due to the solar
energy flux. Characterize the design problem in terms of
the fixed quantities...
What are the advantages and the disadvantages of the following
Renewable Energy sources?
Solar energy
Biomass energy
Wind power
Hydropower
Ocean energy
Geothermal energy
Question From Solar Technologies....
#1) From system engineering standpoint, describe ways
as to how the hot air from a solar collector can be used in
buildings.
#2) Use the data provided in example 3.15 (pp. 118-119) to
compute the available power, outlet temperature, and thermal
efficiency at vwind = 2 m/s (all other boundary conditions are the
same as condition No. 4). Compare the results from this new
condition with that from condition No. 4. Note: Please describe the
procedure and...
Here is the information about the solar energy system: Initial
cost = $6,500; Initial fuel savings = $500/year; Expected life = 15
years; Value of Money = 10%; Inflation = 8%; and Incremental income
tax rate = 25%. If we define the payback condition as the time
required for the present worth of the accumulated benefit to equal
the accumulated present worth of the system cost, what is the time
required to reach the payback condition? Since the income tax...
im creating a Photovoltaic Monitoring System VI that
simulates energy received from solar panel, which then charges a
battery, and then simulates a load.
The energy received from the solar panels needs to be
able to change based off irradiance.
Labview 2018