الفهرس 
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Abstract
Climate change is considered to be one of the most critical issues
that faces the universe. Fossil fuel consumption is found to be the most
influencing parameter that effects this issue due to its contribution in C02
emissrons.
This increase in CO2 emissions leads to the major increase in Earth’s
average temperature. Thus, various investigations are carried out to
identify fossil fuel alternatives in domestic, commercial, industrial and
power generation applications. In the present investigation, clean
renewable energy resources as alternative power generation sources are
examined. Two different models of parabolic. trough collectors are
examined using two different heat transfer mediums which are therminol
.
VP-l and solar salt respectively.
Simulation of the system is conducted through a computer program based
on the first law of thermodynamics analysis for two real installed power
plants data. Simulation code is firstly verified with many models from the
literature review data. The error ranges are found to be limited to 3.78%
using Engineering equation solver software with the aid of Met eo norm 7.0
weather database.
The simulation procedure is then conducted for two proposed locations
which are Nevada, USA and the New Capital of Egypt meteorological data
using two parabolic troughs collectors’ models. Both power plants are
examined using Nano particles additives with different concentrations over
the basic heat transfer mediums. Then the use of Ab03 and Cu Nano
particles with volumetric concentrations up to 5% over both heat transfer
mediums is investigated on power plant performance parameters for the
proposed locations.
New Capital city simulation results showed that at design conditions using
solar salt as a heat transfer fluid improved the power generation to 45.44
MW, which is 3% higher than the pure therminol VP-l. Annual
performance simulation results show that solar salt power plant using 5%
of Cu Nano particles gives the best performance among all of the
investigated cases. Solar salt using 5% of Cu Nano particles is found to
produce 103 GWb net annual of solar energy generation and average
overall annual efficiency of25.02% for New Capital case of study.
Finally, the performance of the best-case scenario is investigated using the
hybrid solar-wind power generation. Wind energy generation is found to
produce net output energy of 1.56-Gigawatt hour (GWb) annually using a
proposed wind turbine model from literature data.
The use of Nano •. particles is found to be a promising technique in solar
power generation, however their dramatically increase in pumping power
which may increase by 67% using 5% Ah03 compared to the pure heat
transfer mediums. Solar salt as a heat transfer fluid also is found to be a
promising solution but it has a very high crystallization point that requires
additional heating power through the low radiation hours as well as the
night hours.