Solar Powered Thermochemical Energy Storage

太阳能热化学储能

• 批准号: EP/N018451/1
• 负责人: Saffa Riffat
• 金额: $ 65.31万
• 依托单位: University of Nottingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN018451%2F1
• 关键词: Solar; Powered; Thermochemical; Energy; Storage

As considerable energy is consumed by UK buildings, not surprisingly, the Government targets for reducing carbon emissions require an 80% energy reduction in this area by 2050. Thermochemical (i.e. water sorption-based) heat storage (THS) can play a pivotal role in synchronizing energy demand and supply in buildings. Transformation of the existing British building stock towards net zero energy buildings requires effective integration and full use of the potential yield of renewable energy. Thermal storage is a key priority to make such a step, particularly for the energy renovation of the existing stock, where compact building level solutions are required. Thermal energy storage can be accomplished using sensible heat storage (SHS), latent heat storage (LHS) or THS. Over these methods THS has approximately 6-10 times higher storage density than SHS, and two times higher than LHS materials when compared on a like for like storage volume basis. In THS, thermochemical energy can be stored independent of the time without any heat loss, permitting solar energy storage during the summer to meet heating demand in winter. Achieving this by other heat storage methods is both complex and expensive. The proposed project will deliver an advanced solar powered THS system, which has stable long term performance in multi-cyclic seasonal use of at least 20 years. The system will contain environmental friendly and safe materials and will be compact, enabling installation in the limited space available in the existing housing stock and as well in the new buildings. Although seasonal storage of solar energy is intended within the proposed project (e.g. V=3-4 m3), it is also possible to design it as short term storage (3-4 days) only with resizing the THS reactor (e.g. V=0.1-0.2 m3). The proposed thermal storage system will lead to significant energy savings (greater than 50%) and CO2 emissions reduction, with a maximum payback of 5 years compared to the current state-of-the-art.The project integrates multiple units of THS with solar air collectors to optimise the performance of these technologies providing seasonal heat storage in both the new and existing UK buildings that has: (a) low cost; (b) higher performance; (c) higher availability; (d) higher durability; (e) improved on-site health and safety; (f) efficient sorption and desorption processes (g) high solar contribution and (f) implementation of the computer design tools. The target is the development of an innovative, highly efficient thermochemical energy storage system with the following technical advantages:* The theory and methodology of the THS reactor incorporating multiple sorption beds with hollow fibre membranes in a unique design that increases efficiency and reliability, thereby improving the current technologies and increasing system energy performance. Fundamental heat/mass transfer formulation and model for membrane fibre/reactor system.* Theory and methodology for the novel evaporative humidifier integrated with heat pipe model for utilizing ground energy to ease evaporation of water and enhancing energy input to the system. * Theory and methodology for the highly efficient solar air collectors to drive the system and achieve efficient sorption and desorption processes.* The characterisation and adaptation of new and safety improved nano-composite sorbents, reducing barriers associated with new energy storage concepts.* The theory and methodology for the advanced ICT optimized control, data/performance monitoring and energy management systemThe project provides an opportunity for UK industries to pioneer the development of a new advanced energy storage technology. It will deliver a sustainable, environmental and cost-effective solution to significantly reduce energy consumption and CO2/GHG emissions. The project will contribute to UK excellence in terms of addressing fuel poverty and improving the quality of life for its citizens.

由于英国建筑物消耗了大量能源，因此毫不奇怪，政府减少碳排放的目标要求到2050年在这一领域减少80%的能源。热化学（即基于水吸附）蓄热（THS）可以在同步建筑物中的能量需求和供应方面发挥关键作用。英国现有建筑存量向净零能源建筑的转型需要有效整合和充分利用可再生能源的潜在收益。储热是实现这一目标的一个关键优先事项，特别是对于需要紧凑型建筑解决方案的现有库存的能源改造。热能储存可以使用显热储存（SHS）、潜热储存（LHS）或THS来实现。在这些方法中，THS具有比SHS高大约6-10倍的存储密度，并且当在相同存储体积的基础上进行比较时，比LHS材料高两倍。在THS中，热化学能可以独立于时间存储而没有任何热损失，允许在夏季期间存储太阳能以满足冬季的供暖需求。通过其他热存储方法实现这一点既复杂又昂贵。拟建项目将提供先进的太阳能THS系统，该系统在多周期季节性使用中具有至少20年的稳定长期性能。该系统将采用环保和安全的材料，结构紧凑，能够在现有住房和新建筑的有限空间内安装。虽然在拟议项目中计划进行太阳能的季节性储存（例如V=3-4 m3），但也可以将其设计为短期储存（3-4天），仅需安装THS反应堆（例如V=0.1-0.2 m3）。建议的热存储系统将导致显着的能源节约该项目将多个THS单元与太阳能空气集热器集成在一起，以优化这些技术的性能，从而在新的和现有的英国建筑物中提供季节性储热，该技术具有：（a）低成本;（B）更高的性能;（c）更高的可用性;（d）更高的耐久性;（e）改善现场的健康和安全;（f）有效的吸附和解吸过程;（g）高的太阳能贡献;（f）采用计算机设计工具。目标是开发一种创新的、高效的热化学储能系统，具有以下技术优势：* THS反应器的理论和方法，该反应器采用独特的设计，将多个吸附床与中空纤维膜结合在一起，提高了效率和可靠性，从而改进了当前的技术，提高了系统的能量性能。膜纤维/反应器系统的基本传热/传质公式和模型。结合热管模型的新型蒸发式加湿器的理论和方法，用于利用地下能量来缓解水的蒸发并增加系统的能量输入。* 高效太阳能空气集热器驱动系统并实现高效吸附和解吸过程的理论和方法。*新的和安全改进的纳米复合吸附剂的表征和适应，减少与新的能量存储概念相关的障碍。先进的ICT优化控制、数据/性能监控和能源管理系统的理论和方法该项目为英国工业界提供了一个开拓新的先进储能技术发展的机会。它将提供一个可持续的，环保的和具有成本效益的解决方案，以显着减少能源消耗和二氧化碳/温室气体排放。该项目将有助于英国在解决燃料贫困和提高公民生活质量方面取得卓越成就。

项目成果

Thermochemical heat storage material using a salt mixture

使用盐混合物的热化学储热材料

• 发表时间: 2017
• 作者: Jarimi H

Open system and materials of thermochemical energy storage in built environment

建筑环境热化学储能开放系统及材料

• 发表时间: 2018
• 作者: Zhang Y

Synthesis and Characterization of Salt in Matrix composite materials for open cycle thermochemical heat storage for building applications

建筑应用开式循环热化学蓄热基体复合材料中盐的合成和表征

• 发表时间: 2017
• 作者: Ramadan O

Experimental investigation of a thermochemical heat storage operating in open mode

开放式热化学储热实验研究

• 发表时间: 2016
• 作者: Devrim AYDIN

Innovative Open Sorption Thermochemical Energy Storage System for Building Applications

适用于建筑应用的创新开放式吸附热化学储能系统

• 发表时间: 2018
• 作者: Dodo A