Supplementary information for Decarbonisation of heat: Analysis of the potential of low temperature waste heat in UK industries

Supplementary files for article Decarbonisation of heat: Analysis of the potential of low temperature waste heat in UK industries <br> The UK will need to decarbonise low temperature industrial waste heat (up to ≈250 °C) to achieve net-zero greenhouse gas emission targets. Industrial waste heat production represents an opportunity for reduction in the use of primary fuels used in the production of commodities. Energy inefficient processes in addition to increased emissions raises the cost of plant operation, – an undesirable scenario for both industrial competitiveness and the environment. Less is known about the quantity and potential applications for recovered low temperature industrial waste heat in UK and the quantification and characterisation of the resource can provide the needed impetus for the development and adoption of green technologies to help achieve the 2050 Net-Zero target. In this work the potential magnitude of the low temperature industrial waste heat resource in the UK is analysed by using sector-level energy intensity values for different industries while drawing on corresponding estimates from previous studies in the USA and by closely mapping the UK Standard Industrial Classification (SIC 2007) against sectors in the USA (NAICS [North American Industry Classification System]). The assessment undertaken finds that the recoverable potential of low temperature waste heat up to ≈250 °C could be up to 83.7% of the total estimated waste heat potential in UK industry. Significant opportunities exist in this low temperature range for waste heat recovery actions at individual sites. Research and Development (R&amp;D) into alternative improved methods for waste heat recovery, storage, and use (WHRSU) technologies could also produce significant positive environmental and industrial impact.

《热能脱碳：英国工业低温余热潜力分析》论文补充材料<br>英国若要实现温室气体净零排放（Net-Zero）目标，需对工业低温余热（最高约250℃）开展脱碳处理。工业余热产能可减少大宗商品生产中对一次能源的使用，从而带来发展机遇。能源利用效率低下的生产工艺叠加排放增加，会推高工厂运营成本，这无论对工业竞争力还是生态环境而言，均为不利局面。目前学界对英国可回收工业低温余热的总量与潜在应用场景所知甚少，而对该资源的量化与特性分析，可为绿色技术的研发与推广提供必要动力，助力达成2050年净零排放目标。本研究针对英国工业低温余热资源的潜在规模展开分析：通过采用不同行业的部门级能源强度数值，参考美国既往研究中的对应估算结果，并将英国标准产业分类（SIC 2007）与美国北美产业分类体系（NAICS [North American Industry Classification System]）的行业门类进行精准匹配。本次评估结果显示，最高约250℃的低温余热可回收潜力，可达英国工业总估算余热潜力的83.7%。该低温余热区间内，各生产场所的余热回收工作存在大量机遇。针对余热回收、储存与利用（Waste Heat Recovery, Storage, and Use，WHRSU）技术的改进替代方案开展研究与开发（R&D），也可对生态环境与工业发展产生显著积极影响。