Novel energy station by natural fluid CO2
Novel energy station by natural fluid CO2
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天然流体二氧化碳新型能源站
DOI：
10.1002/er.6358
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发表时间：
2020-12
影响因子：
4.6
通讯作者：
Zhang Xin-Rong
中科院分区：
文献类型：
--
作者：
Zhang Xin-Rong
The concept of an energy station is a very general term, as long as it can play the role of energy supply. Now it mainly refers to a heating station or a heat exchange station. Yet the concept of a distributed energy station corresponds to the current centralized energy supply system (such as central heating, large grid power supply). The distributed CCHP (combined cooling, heating, and power) system is a comprehensive cascade energy utilization solution. It is the most sustainable way to mitigate climate change and improve energy efficiency. This system can be operated independently or in parallel, which can meet the needs of users with different power loads. However, there are still many conventional energy stations using fossil fuels (natural gas as the main fuel) to drive gas turbines or internal combustion engine generators, resulting in carbon emissions. Along with the development of modern technology, the impact of fossil fuels on our natural life has become well known: they are environmentally unfriendly or hazardous, incur high operating costs, depleate nonrenewable energy resources, and so on. This is the first point that I want to emphasize about the current conventional energy station. The second disadvantage of a conventional energy station is regarding the thermodynamic cycle, or more specifically, the complete seperation of heat and cold. In addition to the above two points, another important point is the problem caused by the wide use of hydrochlorofluorocarbon (HCFC) and CFC refrigerants. As the environmental and ecological pressure increases, many refrigeration applications are required to substitute these with other natural refrigerants as the working medium. The principal aim of this perspective article is to discuss the negative factors of the conventional energy system (eg, working fluids, heat source, power generation mode, etc) that is being used in recent years and to put forward a new concept of an energy station run by natural fluid CO2. We look forward to solving the problems brought about by fossil fuels by using renewable energy and a new thermodynamic cycle by using natural fluid CO2, thereby solving the environmental problems due to freon or other refrigerants and saving energy as far as possible. 2 | ENERGY STATION
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