Thermodynamic, economical and environmental performance evaluation of a 330 MW solar-aided coal-fired power plant located in Niger

IF 6.9 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection Pub Date : 2024-09-13 DOI:10.1016/j.psep.2024.09.027

Seyni YOUNOUSSI SAIDOU, Gamze GENÇ

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Abstract

The integration of solar thermal energy into a coal-fired power plant is one of the best ways to reduce the environmental impact of the latter linked to the release of carbon dioxide (CO2) into the atmosphere. In this paper, solar energy is used before the boiler, just after the first high-pressure feed water heater via a solar preheater (Water/Heat Transfer Fluid exchanger). It should be noted that in this study, there is no feed water heater displacement, and so the plant will operate in pure fuel-saving mode. To carry out an analysis of the integration of solar thermal energy in a coal-fired power plant, a 330 MW Solar Aided Coal Power Plant (SACPP) in northern Niger was studied. The results bring out that the annual solar energy production is 208 GWh, and solar energy can contribute up to approximately 15 % in the production of electricity. The considered SACPP significantly reduces the environmental impact of coal-fired power plants, leading to a reduction in CO2 emissions of around 381358 tons/year. In addition, the annual energy production cost from solar energy in the hybrid system is obtained as 0.0357 $/kWh and the investment payback period is around 12 months.

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尼日尔 330 兆瓦太阳能辅助燃煤发电厂的热力学、经济和环境性能评估

将太阳能热能与燃煤发电厂相结合，是减少燃煤发电厂向大气排放二氧化碳（CO2）对环境影响的最佳方法之一。本文通过太阳能预热器（水/热传导流体交换器）将太阳能用于锅炉之前，即第一台高压给水加热器之后。值得注意的是，在本研究中，没有给水加热器的位移，因此发电厂将以纯燃料节约模式运行。为了分析燃煤发电厂中的太阳能热能集成，研究人员对尼日尔北部一座 330 兆瓦的太阳能辅助燃煤发电厂（SACPP）进行了研究。研究结果表明，太阳能年发电量为 208 GWh，太阳能对电力生产的贡献率约为 15%。所考虑的 SACPP 大幅减少了燃煤发电厂对环境的影响，每年可减少约 381358 吨二氧化碳排放量。此外，混合系统中太阳能的年发电量成本为 0.0357 美元/千瓦时，投资回收期约为 12 个月。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.

Thermodynamic, economical and environmental performance evaluation of a 330 MW solar-aided coal-fired power plant located in Niger

Abstract

Thermodynamic, economical and environmental performance evaluation of a 330 MW solar-aided coal-fired power plant located in Niger