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首页> 外文期刊>Energy Conversion & Management >Techno-economic assessment and optimization of a hybrid renewable co- supply of electricity, heat and hydrogen system to enhance performance by recovering excess electricity for a large energy consumer
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Techno-economic assessment and optimization of a hybrid renewable co- supply of electricity, heat and hydrogen system to enhance performance by recovering excess electricity for a large energy consumer

机译：对电力，热力和氢气系统的混合可再生混合供应进行技术经济评估和优化，以通过为大型能源消费者回收多余的电力来提高性能

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This study attempts to optimize and examine the techno-economic feasibility of off-grid hybrid renewable energy systems (HRES) to satisfy simultaneously electric, heat and hydrogen load of a large energy consumer. An innovative method is adopted so as to recover surplus electricity to generate heat and cut emissions. The system is comprised of solar panels, wind turbine, diesel generator, electrolyzer and boiler to supply 9910 kWh/day of electricity, 14 kg/day of hydrogen and thermal energy in five different major cities in Iran, namely Bandar Abbas, Shiraz, Tabriz, Tehran and Yazd. These figures are computed on average and the thermal load differs according to yearly weather temperature, which are 75, 22, 2000, 5200, 2200 and 1800 kWh/day respectively. To serve this purpose, HOMER Pro software was used and thermal load controller (TLC) (including electric boiler) was added to generate thermal energy by converting excess electricity of renewable energy production. Thus, a decrease in conventional fuel consumption, emissions and cost of energy (COE), as well as an increase in the renewable fraction of HRES without increasing project's size would be achievable. To meet peak demand and avoid intermittent behavior of HRES, a 1000 kW generator was picked up. Results indicate that recovering extra electricity can enhance renewable fraction by up to 35% and bring down COE and exhausted CO2 by 7.1% and 10.6% respectively, which highlight the necessity of TLC in HRES, chiefly in off-grid systems.
机译：这项研究试图优化和检验离网混合可再生能源系统（HRES）的技术经济可行性，以同时满足大型能源消费者的电，热和氢负荷。采用了一种创新方法，以回收多余的电能以产生热量并减少排放。该系统由太阳能电池板，风力发电机，柴油发电机，电解器和锅炉组成，为伊朗五个不同的主要城市，即阿巴斯港，设拉子，大不里士的五个主要城市提供9910千瓦时/天的电力，14千克/天的氢和热能。 ，德黑兰和亚兹德。这些数字是平均计算得出的，热负荷根据年度天气温度而有所不同，分别为75、22、2000、5200、2200和1800 kWh /天。为了达到这个目的，使用了HOMER Pro软件，并添加了热负荷控制器（TLC）（包括电锅炉）以通过转换可再生能源生产中的多余电能来产生热能。因此，在不增加项目规模的情况下，可以实现传统燃料消耗，排放和能源成本（COE）的减少，以及HRES可再生分数的增加。为了满足高峰需求并避免HRES的间歇性行为，选择了1000 kW发电机。结果表明，回收额外的电力可以使可再生能源比例提高多达35％，并使COE和排放的CO2分别降低7.1％和10.6％，这凸显了HRES中TLC的必要性，主要是在离网系统中。

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