Thermochemical seasonal solar energy storage for building applications (SeasonalStorage)

英国政府的气候变化咨询委员会建议到2050年实现温室气体净零排放。即使其他国家效仿英国，到2100年，也有50%的机会将气温上升保持在推荐的1.5摄氏度以下。1.5摄氏度的上升被认为是危险的气候变化的门槛。国内部门目前约占英国能源消耗的30%，温室气体排放的25%，这是对化石燃料依赖的结果，特别是在空间取暖和热水方面。天然气在集中供暖住宅中占85%的热负荷，在非集中供暖住宅中占50%。这些家庭每年每户每年排放约2吨二氧化碳，约占英国家庭平均碳足迹的十分之一。一个解决方案是使现有和新的物业更节能，并为目前使用化石燃料的85%的英国家庭寻找低碳替代热源。太阳能季节存储系统解决了当地建筑业一年中“按需供暖”的问题。可再生能源将在综合SeasonalStorage中有效地储存热量，并在需求较高和/或能源供应有限的时期得到利用。该项目将有助于为当地能源系统的多功能蓄热提供一种短期/季节性、低成本、高效和脱碳的解决方案。一个由具有互补技能的行业和大学组成的财团将共同努力，为英国和海外的本地能源系统提供负担得起、可靠和高效的可再生能源储存技术。该项目的总体目标是设计、开发和建造一个创新的跨季节热化学能量储存系统，该系统可以独立运行，也可以作为一个关键部件整合到现有的当地能源系统中。该技术将太阳能光伏/热能和新型中空纤维换热器相结合，形成了一种具有高能量密度、低热损失、低再生温度、低体积要求、设计简单、易于制造和操作的脱碳局部能源系统的潜在储能解决方案。它通过使用环保热化学材料的智能太阳能蓄热组件，实现更好的当地能源弹性，并通过缓解能源生产与社区建筑需求之间的差距，促进更高的可再生能源渗透率。这将有利于太阳能光伏/热能、热化学存储材料制造商、能源行业、换热器制造商和社会。拟议系统的商业化将在能源储存、可再生能源、建筑服务、本地能源服务部门和国内/国际贸易行业创造新的就业机会。

The UK government's advisory Committee on Climate Change recommended "net zero" greenhouse gases by 2050. Even if other countries followed the UK, there was a 50-50 chance of staying below the recommended 1.5°C temperature rise by 2100. A 1.5°C rise is considered the threshold for dangerous climate change. The domestic sector currently accounts for about 30% of UK's energy consumption and 25% of greenhouse gas emissions, a result of dependency on fossil fuels particularly for space heating and hot water. Natural gas provides 85% of heating load in centrally heated houses and 50% in non-centrally heated houses. The households emit around 2t CO2 per household per year, which represents around 1/10 of average UK household's carbon footprint. A solution is making existing and new properties more energy efficient and finding low-carbon alternative heat sources for 85% of UK households that currently use fossil fuel based fuel. The solar-powered SeasonalStorage system addresses the year around "heat on demand" issue in local building sector. Renewable energy will be effectively store heat in the integrated SeasonalStorage and utilised for periods of higher demand and/or limited energy availability. This project will contribute to a short/seasonal, low cost, efficient and decarbonised solution for multi-functional heat storage in local energy systems. A consortium consists of industry and a university with complementary skills and will work together to provide affordable, reliable and efficient renewable energy storage technology for local energy systems in UK and overseas. The overall aim of this project is to design, develop and construct an innovative and inter-seasonal thermochemical energy storage system, which can be run stand-alone or as a key component integrated into the existing local energy systems. The proposed technology combines solar PV/thermal and novel hollow fibre heat exchangers, forming a promising energy storage solution for decarbonised local energy systems with high energy density, low heat loss, low regeneration temperature, low volume requirement, simple design, easy fabrication and operation. It enables better local energy resilience through a smart solar heat storage component using environmental-friendly thermochemical materials and facilitates higher renewable energy penetration by mitigating the gap between energy generation and demand for community buildings. This will be beneficial for solar PV/thermal, thermochemical storage material manufacturers, energy industry, heat exchanger manufacturers and society. The commercialisation of proposed system will create new job opportunities in energy storage, renewable energy, building services, local energy services sectors and the national/international trading businesses.