Abstract
The EU has implemented targets to achieve a 20% share of energy from renewable sources by 2020, and 32% by 2030. Additionally, in the EU countries by 2050, more than 80% of electrical energy should be generated using non-greenhouse gases emission technology. At the same time, energy cost remains a crucial economic issue. From a practical point of view, the most effective technology for energy conversion is based on a gas turbine combined cycle. This technology uses natural gas, crude oil or coal gasification product but in any case, generates a significant amount of toxic gases to the atmosphere. In this study, the environmentally friendly power generation system composed of a high-temperature nuclear reactor HTR integrated with gas turbine combined cycle technology and cogeneration unit is thermodynamically analysed. The proposed solution is one of the most efficient ways for energy conversion, and what is also important it can be easily integrated with HTR. The results of analysis show that it is possible to obtain for analysed cycles thermal efficiency higher than 50% which is not only much more than could be proposed by typical lignite or hard coal power plant but is also more than can be offered by nuclear technology.
Highlights
Hard coal and lignite coal, after oil, are the second most important energy source, accounting for about 30% of the world’s total primary energy consumption
The aim of the present study is to investigate new combined power cycles for heat and electrical power generation using the gas turbine and steam turbine coupled with a high-temperature nuclear reactor
The high-temperature gas nuclear reactor–HTR integrated with gas turbine combined cycle is a very promising novel solution in the field of emission-free energy production
Summary
Hard coal and lignite coal, after oil, are the second most important energy source, accounting for about 30% of the world’s total primary energy consumption. This type of fuel is the second most common energy source used for the generation of electrical energy [1]. In the existing power plants, about 75% of power generation units are operating in a subcritical regime. It means that, independent of exhaust-gas cleaning systems, at least 1000 kg CO2 /MWh is emitted to the atmosphere [2]. That raises the price of the energy and often makes the system much less competitive in reference
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