Life cycle greenhouse gas emissions of cogeneration energy hubs at Japanese paper mills with thermal energy storage
Life cycle greenhouse gas emissions of cogeneration energy hubs at Japanese paper mills with thermal energy storage
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DOI：
10.1016/j.energy.2023.126886
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发表时间：
2023-02
期刊：
影响因子：
9
通讯作者：
Ayumi Yamaki;Shoma Fujii;Yuichiro Kanematsu;Yasunori Kikuchi
中科院分区：
文献类型：
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作者：
Ayumi Yamaki;Shoma Fujii;Yuichiro Kanematsu;Yasunori Kikuchi
以可变的可再生能源为基础的电力，虽然由于间歇性的特性，无法有效分配，但预计将朝着可持续社会的方向增加。为了加速可再生能源的实施，我们模拟了安装风能的造纸厂的能量流动，并评估了它们作为能源中心的潜力，以便进行适当的早期设计。我们以39家日本造纸厂为目标，假设他们安装了热能储存、风热能转换器和区域木质生物质，并分析了电力和热量的销售量以及生命周期的温室气体排放量。将造纸厂的结果与常规造纸厂进行比较，以检验减少温室气体的有效条件。卖多少电或卖多少热取决于造纸厂的能力和所安装的设备。大多数造纸厂可以使用热能储存、风能和木质生物质来减少温室气体排放。与传统造纸厂相比，生命周期温室气体减量最高的造纸厂可以实现190%的减排。为了发挥热电联产能源枢纽的作用，造纸厂安装的设备应根据造纸厂及其所在地区的情况进行设计。
Variable renewable energy-based power is expected to increase toward a sustainable society, although the power cannot be dispatched effectively due to its intermittent nature. To accelerate renewable energy implementation, we simulated energy flows of paper mills installing wind energy and evaluated their potentials to function as energy hubs for appropriate early-stage design. We targeted 39 Japanese paper mills assumed to have thermal energy storage, wind–thermal energy converters and regional woody biomass installed, and analyzed the amount of power and heat selling and life cycle greenhouse gas emissions. The results for the paper mills were compared with conventional mills to examine effective conditions for greenhouse gas reduction. The amount of power or heat selling depended on the capacity of the paper mill and the installed equipment. Most paper mills could reduce greenhouse gas using thermal energy storage, wind energy, and woody biomass. The paper mill with the highest life cycle greenhouse gas reduction, compared with conventional mills, could achieve a 190% reduction. To function as a cogeneration energy hub, the equipment installed in paper mills should be designed according to the conditions of the paper mills and their regions.