Geothermal Energy from Mines and Solar-Geothermal heat (GEMS)

矿山地热能和太阳能地热能 (GEMS)

基本信息

批准号：
EP/V042564/1
负责人：
Jeroen Van Hunen
金额：
$ 181.16万
依托单位：
Durham University
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%2FV042564%2F1
关键词：
Geothermal Energy Mines Solar heat

项目摘要

Over half of UK's energy demand is from heat, and most of it is provided by fossil fuels. While coal mining has stopped, the water within flooded abandoned mines provide a huge source (2.2 million GWh) of low-carbon, geothermal heat for the future, enough to heat all UK houses for >100 years! The mine water is only lukewarm (12-20 degC), but with heat pumps, temperatures are increased to a more comfortable 40-50 degC. Heat pumps produce 3-4x the energy than they use, making mine water geothermal heating (MWGH) an efficient energy source. But research is required to make MWGH competitive, technically and logistically feasible, and desirable: which collieries are suitable for sustainable heat extraction? MWGH requires district heating networks between premises, so how can we overcome the associated hurdles for setting those up? Can MWGH handle seasonal heat demands reliably? Can MWGH financially compete with the established gas boiler? Do local communities want such change to greener heat? This project will examine these components of MWGH, from the initial geothermal heat extraction, to the logistics of heat storage and delivery, the political and financial landscape for MWGH, and involving local communities in all this.Detailed knowledge of mine water circulation and thermal interaction with the rocks is essential for the success of MWGH. Prior to expensive drilling, numerical models help predict how suitable a mine system is. WP1 will address this using innovative, detailed mine thermal flow models that are fast, so can easily run thousands of flow scenarios to find optimal settings, and are easily tailored towards individual mine plans to investigate case studies. Simulations will be calibrated against flow experiments at GGERFS, the UKGEOS Geothermal Research centre, while project partners provide mine plans, pumping and geological data from several sites. Valuable, unrecorded mine information available within former mining communities will be collected to supplement the mine knowledge and accuracy of the simulations. Heat pumps will increase the temperature of the extracted mine water for local heating purposes. But to meet seasonally fluctuating heat demands, heat storage is essential. WP2 will address this through novel solar-geothermal heat collection that utilizes both underground and overground storage. Solar heat drives sorption reactions, and access heat is released to mine water and stored underground, thereby supporting the long-term heat capacity of the mines. The experimental design of such storage system will be tested and optimized at GGERFS. The success of introducing MWGH depends on many political, financial and social aspects too. Without a favourable regulatory and financial landscape, the major undertaking of installing a MWGH system may be too risky. And without closely working with local councils, the Coal Authority, the Environmental Agency, and local communities, these schemes often fail. WP3 addresses these aspects, by critically analysing the regulations and procedures to start new mine geothermal heating schemes, map out and analyse the financial landscape, and investigate how local communities, scientists, and government agencies can work together to create financially successful and socially just interventions. Present and historic case studies from NE England and Wales will serve to test all aspects of the proposal.So MWGH projects require an interdisciplinary approach as we are proposing here. WP4 will oversee the project and ensure, 1) that learning within and across WP's is shared and integrated to enrich the whole and, 2) that the communities, various research groups, local industries and project partners have opportunities to fully integrate and collaborate across the entire project. In summary, this project provides technical, logistical, political, financial, and social solutions for MWGH projects to decarbonize heating in the UK.

英国超过一半的能源需求来自热量，大部分是由化石燃料提供的。尽管煤矿开采已经停止，但被洪水被淹没的矿山中的水提供了一个巨大的低碳和地热矿加热的来源（220万GWH），足以将所有英国房屋加热到100年以上！矿水只是不冷不热（12-20摄氏度），但是使用热泵，温度升高到更舒适的40-50摄氏度。热泵可产生比使用的能量3-4倍，这使得矿水地热加热（MWGH）成为有效的能源。但是，需要研究才能使MWGH竞争，技术上和逻辑上可行且可取：哪些煤矿适合可持续的热量提取？ MWGH需要区域之间的区域供暖网络，那么我们如何克服设置这些障碍的相关障碍？ MWGH可以可靠地处理季节性热量吗？ MWGH可以在财务上与已建立的燃气锅炉竞争吗？当地社区是否希望这种变化为更绿色？该项目将研究MWGH的这些组成部分，从最初的地热萃取，到热量储存和交付的物流，MWGH的政治和金融格局，并参与当地社区的所有这些。在昂贵的钻井之前，数值模型有助于预测矿山系统的合适程度。 WP1将使用快速的创新的，详细的矿山流量模型来解决此问题，因此很容易运行数千个流动方案以找到最佳设置，并且很容易针对单个矿山计划进行调查以调查案例研究。将对UKGEO地热研究中心GGERFS的流量实验进行校准，而Project Partners则提供来自多个站点的矿山计划，抽水和地质数据。将收集以前采矿社区内可用的宝贵，未录制的矿山信息，以补充模拟的矿山知识和准确性。热泵将增加提取的矿水的温度，以实现局部加热。但是要满足季节性波动的热量需求，热量储存至关重要。 WP2将通过使用地下和地面存储的新型太阳能地球热收集来解决这一问题。太阳热驱动吸附反应，并释放出向水的通道热量，从而支持地雷的长期热容量。该存储系统的实验设计将在GGERF上进行测试和优化。引入MWGH的成功也取决于许多政治，财务和社会方面。没有有利的监管和金融环境，安装MWGH系统的主要工作可能太冒险了。如果没有与地方议会，煤炭管理局，环保机构和地方社区密切合作，这些计划常常失败。 WP3通过严格分析启动新矿山地热暖气计划的法规和程序来解决这些方面，并进行绘制和分析金融格局，并研究当地社区，科学家和政府机构如何共同创造经济上的成功和社会上的干预措施。 NE英格兰和威尔士的当前和历史案例研究将有助于测试该提案的各个方面。因此，MWGH项目需要跨学科的方法，就像我们在这里提出的那样。 WP4将监督该项目并确保，1）在WP内部和整个WP中学习并集成以丰富整体以及2）社区，各种研究小组，本地行业和项目合作伙伴有机会在整个项目中充分整合和协作。总而言之，该项目为MWGH项目提供了技术，后勤，政治，财务和社会解决方案，以便在英国脱碳化。