Abstract
The growing demand for energy and fossil fuels creates increased number of difficulties, while renewable energy sources are still rarely used worldwide, particularly in Vietnam. In this article hybrid thermal power plants based on gas turbine plants are discussed, the increased efficiency of which is achieved by air heating after the compressor in solar air heaters. The basic design equations and the results of evaluating the efficiency and fuel consumption are presented for two thermal power plants of 4.6 MW and 11.8 MW. The dependence of the results on the intensity of solar extraction for the climatic conditions of the Ninh Thuan province of the Republic of Vietnam is discussed.
Highlights
1.1 The hybrid solar thermal power plantAccording to experts, the main causes of climate change and global warming are greenhouse gas emissions
Humanity faces the risk of instability in providing energy and reducing energy security, as sources of fossil fuels are gradually being exhausted, while energy consumption is increasing
According to the EIA, the level of energy consumption in the world will increase by 28% in the period from 2015 to 2040 [2], which will lead to higher prices for fossil fuels in the 20 years
Summary
The main causes of climate change and global warming are greenhouse gas (mainly CO2) emissions. Solar thermal power plants use standard power generators, and can be combined with other fuel sources [4, 5] These sources include gas, coal, biofuel, wind, nuclear energy, etc. Combining solar energy with other fuels such as natural gas can benefit conventional thermal power plants, reducing emissions to the atmosphere and fuel costs [6, 7]. Such objects can be developed with the prospect of using solar energy, the share of which can be increased, which will contribute to the growth of thermal energy reserves [8, 9]. It is economically advantageous to create power plants that combine solar energy with fossil fuels [11, 12]
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