Residential retrofit in the UK: The optimum retrofit measures necessary for effective heat pump use
Residential retrofit in the UK: The optimum retrofit measures necessary for effective heat pump use
复制标题
英国的住宅改造：有效利用热泵所需的最佳改造措施
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
J. Lingard
中科院分区：
文献类型：
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作者：
J. Lingard
商业、能源和工业战略部和气候变化委员会高度依赖热能电气化和热泵系统的使用，以在2050年前实现净零排放。节能建筑对于高效热泵运行至关重要。然而，英国的住房是欧洲能源效率最低的国家之一。家庭用电需求将随着热泵的使用而增加，这意味着基础设施和发电能力的加强。本研究采用动态模拟建模，以确定最佳的节能改造，以尽量减少能源使用和电力需求的平均半独立式住宅使用热泵。固体壁绝缘被认为是关键的能源减排，虽然热泵运行在一个高的需求相比，低电压网络设计。符合现行建筑法规的全屋改造将供暖需求和排放量减少了65%，并将热泵的输入电力需求降低到1千瓦以下。实心墙体隔热和低U值玻璃窗是成本最优的解决方案，可实现类似的减排效果。超过建筑法规的措施被证明可以将热量需求和碳排放量降低近80%，突出了改造标准的改进空间。实际应用：目前，英国政策制定者有一个高碳化石燃料的首选替代品，这是一个严重依赖低碳电力驱动的热泵系统。热泵系统需要节能建筑才能有效运行。提高建筑效率的一个关键因素是织物标准，这会极大地影响传热系数。节能措施的改进是未来净零成功的关键，并将对消费者和供应链产生重大影响。
The Department for Business, Energy & Industrial Strategy and the Committee on Climate Change place high dependency on the electrification of heat and use of heat pump systems to achieve net zero emissions by 2050. Energy efficient buildings are essential for effective heat pump operation. However, the UK’s housing stock is amongst the least energy efficient in Europe. Household electricity demand will increase with heat pump use, meaning reinforcement to infrastructure and generation capacity. This study uses dynamic simulation modelling to determine the optimum energy efficient retrofit required to minimise energy use and electrical demand for an average semi-detached dwelling using a heat pump. Solid wall insulation is found to be critical in energy abatement, although the heat pump operates at a high demand compared with low voltage network design. A whole house retrofit in-line with current Building Regulations reduces the heating demand and emissions by 65%, and lowers the input electrical demand for the heat pump to under 1 kW. Solid wall insulation and low U-value glazing are the cost-optimal solution, achieving similar abatement. Measures that exceed building regulations are shown to lower heat demand and carbon emissions by almost 80%, highlighting scope for improvement in retrofit standards. Practical application: At present, UK policy makers have a preferred alternative to high carbon fossil fuels that is a system heavily reliant on heat pumps powered by low carbon electricity. Heat pump systems require energy efficient buildings to operate effectively. A key factor when improving building efficiency is fabric standards, which can dramatically impact the heat transfer coefficient. Retrofit of energy efficiency measures is key to future net zero success and will have large implications to consumers and supply chains alike.
影响因子：
9
作者：
Jan Rosenow;P. Guertler;S. Sorrell;N. Eyre
通讯作者：
Jan Rosenow;P. Guertler;S. Sorrell;N. Eyre