VTTESS- Variable-Temperature Thermochemical Energy Storage System and Heat Networks for Decarbonising the Buildings Sector

VTTESS-用于建筑行业脱碳的变温热化学储能系统和热网

• 批准号: EP/V041452/1
• 负责人: Jo Darkwa
• 金额: $ 172.54万
• 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: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FV041452%2F1
• 关键词: VTTESS; Variable; Temperature; Thermochemical; Energy

Over half of all energy consumption in the UK is for meeting thermal demand, with the buildings sector accounting for around 44%. Direct and indirect greenhouse gas emissions from buildings alone accounted for 26% of the UK total in 2019. In order to decarbonise the supply side of the buildings sector, low carbon and zero carbon heating systems need to be developed to replace fossil-fuelled systems. There are many potential candidates, such as geothermal and solar-thermal, industrial, and commercial waste heat and heat pumps. However, the variable nature of the low-zero carbon sources, both short term (daily) and long term (seasonal), and mismatches between needs and availability of energy, make decarbonisation difficult to achieve at the individual building level. District heating (DH) systems in urban settings (industrial and domestic) are ideally placed to provide the infrastructure to match the demand from individual buildings via transient low/zero carbon sources, but require suitable energy storage facilities that can operate over a range of source temperatures. Currently, just over 7% of DH systems in the UK use hot water storage. Fluidised bed thermochemical energy storage (TCES) system using water circulation through inorganic oxides has great potential for storage at high energy densities. It can be designed for operation at variable temperatures. It can retain the energy in its absorbed state, with near-zero losses and so potentially allowing storage inter-seasonally, e.g. storing solar energy in summer during low demand and discharging in winter during high demand. DH integrated with TCES will significantly contribute to decarbonisation of the built environment, addressing issues of fuel poverty and pollution. However, its success depends not only on technical capacities but also on the systemic inter-dependencies between macro (national), meso (regional) and micro (local) level actors. DH is a context-specific energy service where a coalition of these actors are essential, and social and environmental criteria must be incorporated in the decision-making process. As DH is a multi-building technology, for residential application, community engagement and integration of citizens in the decision process, taking into account of the above elements, are critical to ensure a pathway to success. We will therefore develop a co-design framework to better understand socio-political, organisational, economic, and technical factors associated with TCES-DH system in order to foster a community of practice between actors on all levels.

在英国，超过一半的能源消耗用于满足热需求，其中建筑部门约占44%。仅建筑物的直接和间接温室气体排放量就占2019年英国总量的26%。为了实现建筑业的供应方脱碳，需要开发低碳和零碳供暖系统，以取代化石燃料系统。有许多潜在的候选者，如地热和太阳能热，工业和商业废热和热泵。然而，低零碳源的可变性，短期（每日）和长期（季节性），以及能源需求和可用性之间的不匹配，使得脱碳难以在单个建筑物层面实现。城市环境（工业和家庭）中的区域供热（DH）系统非常适合提供基础设施，以通过瞬态低碳/零碳源满足单个建筑物的需求，但需要合适的储能设施，可以在一定范围的源温度下运行。目前，英国仅有7%以上的DH系统使用热水储存。水循环流化床热化学储能系统是一种具有很大潜力的高能量密度储能系统。它可以被设计为在不同的温度下运行。它可以将能量保持在其吸收状态，损失接近零，因此可能允许跨季节存储，例如在夏季低需求期间存储太阳能，并在冬季高需求期间放电。DH与TCES的结合将大大有助于建筑环境的脱碳，解决燃料贫困和污染问题。然而，它的成功不仅取决于技术能力，而且取决于宏观（国家）、中间（区域）和微观（地方）行为者之间的系统性相互依存关系。DH是一种针对具体情况的能源服务，其中这些行为者的联盟至关重要，社会和环境标准必须纳入决策过程。由于DH是一种多建筑技术，对于住宅应用，社区参与和公民参与决策过程，考虑到上述因素，对于确保成功至关重要。因此，我们将制定一个共同设计框架，以更好地了解与TCES-DH系统相关的社会政治，组织，经济和技术因素，以促进各级行为者之间的实践社区。

项目成果

Barriers to the Upscale of Sustainable Heating Technologies in UK

英国可持续供暖技术升级的障碍

• 发表时间: 2022
• 期刊: Energy Review
• 作者: Salite D

Development of spectrally self-switchable cover with phase change material for dynamic radiative cooling

开发用于动态辐射冷却的具有相变材料的光谱自切换盖

• DOI: 10.1016/j.solmat.2022.112125
• 发表时间: 2023-03
• 期刊: Solar Energy Materials and Solar Cells
• 影响因子: 6.9
• 作者: Weiguang Su;Ruigeng Kang;Pei Cai;Mingke Hu;Georgios Kokogiannakis;Jo Darkwa;Jun Chen;Shuhui Xu;Li Wang
• 通讯作者: Li Wang

Development of Composite Microencapsulated Phase Change Materials for Multi-Temperature Thermal Energy Storage

• DOI: 10.3390/cryst13081167
• 发表时间: 2023-07
• 期刊: Crystals
• 影响因子: 2.7
• 作者: Weiguang Su;J. Darkwa;T. Zhou;D. Du;G. Kokogiannakis;Yilin Li;Li Wang;Liying Gao

A Critical Analysis of Policies and Strategies Supporting District Heating Expansion and Decarbonisation in Europe - Lessons for Slow Adopters

对支持欧洲区域供暖扩张和脱碳的政策和战略的批判性分析——给缓慢采用者的教训

• DOI: 10.2139/ssrn.4357180
• 发表时间: 2023
• 作者: Salite D

Synthesis and Characterization of Doped Magnesium Hydroxide for Medium Heat Storage Application.

• DOI: 10.3390/ma16186296
• 发表时间: 2023-09-20
• 期刊: Materials (Basel, Switzerland)
• 作者: Albeladi N;Kur A;Mokaya R;Darkwa J;Roger-Lund S;Worall M;Calautit J;Boukhanouf R
• 通讯作者: Boukhanouf R