Integrating green hydrogen into building-distributed multi-energy systems with water recirculation

IF 5 Q2 ENERGY & FUELS
Hanhui Lei , Joseph Thomas , Oliver Curnick , K.V. Shivaprasad , Sumit Roy , Lu Xing
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Abstract

This study proposes integrating a building-distributed multi-energy system (BDMES) with green hydrogen to decarbonise electricity generation for buildings. By producing and consuming green hydrogen locally at the building site, using a water electrolyser and proton exchange membrane fuel cell (PEMFC), the reliance on costly, energy and carbon-intensive hydrogen transportation is eliminated. This integration presents an opportunity for energy autonomy, achieved by locally green hydrogen production, storage, and usage. More importantly, the proposed system enables water recirculation between the electrolyser and PEMFC, an effective option worldwide to conserve water resources, and reduce environmental impact. Models are developed to investigate the interaction mechanisms among the photovoltaic (PV) module, water electrolyser, fuel cell, and cooling system. Case study results for a residential building in Aberdeen, UK are presented and discussed, maximum 75 solar panels can be installed on the 150m2 roof area. Since less solar energy can be harvested in this area, in the peak hour of one summer day, 11 solar panels are required to meet 100 % daily maximum building energy demand and ensure 100 % water recirculation. In one winter-day, total 75 solar panels can only meet 26 % of total building energy demand.

Abstract Image

将绿色氢融入建筑分布式多能系统,并实现水循环
本研究建议将建筑分布式多能系统(BDMES)与绿色氢相结合,为建筑脱碳发电。通过在建筑工地就地生产和使用绿色氢,使用水电解器和质子交换膜燃料电池(PEMFC),消除了对昂贵、能源和碳密集型氢运输的依赖。这种整合为能源自主提供了机会,通过当地的绿色氢生产、储存和使用来实现。更重要的是,该系统可以在电解槽和PEMFC之间实现水的再循环,这是世界范围内节约水资源和减少环境影响的有效选择。建立了光伏(PV)组件、水电解槽、燃料电池和冷却系统之间相互作用机制的模型。本文介绍并讨论了英国阿伯丁一座住宅楼的案例研究结果,该住宅楼150平方米的屋顶面积上最多可安装75块太阳能电池板。由于该地区可收获的太阳能较少,因此在夏季一天的高峰时段,需要11块太阳能电池板来满足100%的每日最大建筑能源需求,并确保100%的水循环。在一个冬天,总共75块太阳能电池板只能满足总建筑能源需求的26%。
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CiteScore
4.20
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