In this paper, an ammonia-fueled combined heat and power generation system is modeled and analyzed from thermodynamic and economic points of view for application in large industrial sectors. Moreover, solar parabolic trough collectors and molten salt thermal energy storage are used to preheat water entering a bottoming steam-driven power generation cycle. An electrolizer is installed to separate water into hydrogen and oxygen for charging a hydrogen storage tank, procuring hydrogen for fuel cell vehicles, and producing methane by combining hydrogen and captured carbo dioxide. A mixed-integer nonlinear programming problem is solved to supply the natural gas, heat and electrical demands of a steel industry while minimizing the cost of the electrical power purchased from the local distribution grid during two extremely-hot summer days. It is found that ammonia-solar fueled poly-generation system is not only applicable for industrial sectors with maximum 10 MW electricity, 14 MW heat, and 11 MW natural gas demands under at least 52 % energy efficiency, but also supplies hydrogen for transportation electrification using fuel cell vehicles. The total cost of the electrical power purchased from the upstream distribution company during 48-h study horizon is obtained as 300 $, which proves the economic feasibility of the proposed gas-energy nexus model.

中文翻译：

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绿氨和太阳能驱动的多联供系统：考虑熔盐热能储存、燃料电池汽车和电转气的热经济模型和优化


在本文中，从热力学和经济角度对氨燃料热电联产系统进行建模和分析，以应用于大型工业部门。此外，太阳能槽式集热器和熔盐热能储存用于预热进入触底蒸汽驱动发电循环的水。安装电解器，将水分离成氢气和氧气，用于为储氢罐充电，为燃料电池汽车采购氢气，并通过将氢气和捕获的二氧化碳混合来生产甲烷。求解混合整数非线性规划问题，以满足钢铁行业的天然气、热能和电力需求，同时在两个极端炎热的夏日期间最大限度地降低从当地配电网购买的电力成本。研究发现，氨-太阳能燃料多联产系统不仅适用于在至少 52% 能源效率下最大需要 10 MW 电力、14 MW 热量和 11 MW 天然气需求的工业部门，而且还为使用燃料电池汽车的交通电气化提供氢气。在 48 小时研究期间，从上游配电公司购买的电力总成本为 300 美元，这证明了所提出的天然气-能源关系模型的经济可行性。