nano-Structured PCM Composites for Compact Space Heating: n-CoSH

用于紧凑空间加热的纳米结构 PCM 复合材料：n-CoSH

• 批准号: EP/P003435/1
• 负责人: Yanqiu Zhu
• 金额: $ 117.81万
• 依托单位: UNIVERSITY OF EXETER
• 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%2FP003435%2F1
• 关键词: nano; Structured; PCM; Composites; Compact

Energy storage plays a crucial role in building a sustainable energy system. New technology tackling challenges in the area of domestic space heating and water heating will make significant contributions to the energy consumption,CO2 emission, and to improve the quality of life, because among all energy consumed by end users, ~45-47% is for domestic space heating and water heating accounts for another 40%. Among different storage technologies, thermal energy storage provides a unique approach for efficient and effective peak-shaving of both electricity and heat demand, efficient use of renewable energy from wind, tide and sun, and low grade waste heat, as well as distributed energy and backup energy systems. In Europe, it has been estimated that around 1.4 million GWh per year could be saved-and 400 million tonnes of CO2 emissions avoided by thermal energy storage. Despite the importance and huge potential, very limited research has been done in the area.Phase Change Material (PCM) based technology has a great potential to provide a cost effective solution to the problem, if we can tackle the density and efficiency challenges and overcome the cost barrier. PCMs have an energy density 3-6 times higher than the use of water as a storage medium, and have the potential to compete with sensible heat storage materials such as MgO in terms of cost per unit kWh and is far more compact, and is cheaper than the electrochemical thermal storage. Thus, this bears significant national importance to the UK energy system, peak-shaving and quality of life, but composite PCMs for domestic heating is severely understudied.This project, building on individual achievements in nanocomposites and in thermal storage research and adopting a multi-institutional and experimental-modelling approach, aims to develop new PCM-based nanomaterials, that are suitable for high energy density (6 times higher than existing technology), affordable and sustainable PCM-based composite thermal storage device applications. It primarily addresses the Materials and Materials Design aspect of this Energy Storage Challenge Call to provide high energy and power density. The project will also develop experimental and modelling Diagnostic Tools, in order to monitor and maximise the efficiency of the PCM composite deveice. The well-organised investigators from five different research groups of three universities, will first tackle the fundamental PCM composite challenges to solve the low conductivity, thermal expanson and supercooling issues, then move on to investigate at module and system levels to assist validate and optimise the new PCM composites, to achieve optimal device thermal effiency over 92-95%, with >at lease 25% electricity bill saving, 40% weight reduction and 6000 cycle duration. Finally we will construct example domestic space heater to demonstrate the practical improvement of our materials, and we will deliver 10 kW high effiency, compact and low cost device prototypes for demonstration at the Nottingham Creative Homes.

储能在构建可持续能源系统中起着至关重要的作用。解决家庭空间供暖和水供暖领域挑战的新技术将对能源消耗、二氧化碳排放和提高生活质量做出重大贡献，因为在最终用户消耗的所有能源中，约45-47%用于家庭空间供暖，水供暖占另外的40%。在不同的存储技术中，热能存储提供了一种独特的方法，可以高效和有效地调节电力和热量需求，有效利用风能、潮汐能和太阳能等可再生能源，以及低品位的废热，以及分布式能源和备用能源系统。在欧洲，据估计，每年可以节省约140万千瓦时的能源，并通过热能储存避免4亿吨二氧化碳的排放。尽管其重要性和巨大的潜力，在这一领域的研究非常有限。如果我们能够解决密度和效率方面的挑战，并克服成本障碍，基于相变材料（PCM）的技术有很大的潜力为这一问题提供一个具有成本效益的解决方案。pcm的能量密度比使用水作为存储介质的能量密度高3-6倍，并且在单位千瓦时成本方面具有与MgO等显热存储材料竞争的潜力，并且比电化学储热更紧凑，更便宜。因此，这对英国能源系统、调峰和生活质量具有重要的国家意义，但用于家庭供暖的复合pcm的研究严重不足。该项目以纳米复合材料和储热研究方面的个人成就为基础，采用多机构和实验建模的方法，旨在开发新的基于pcm的纳米材料，该材料适用于高能量密度（比现有技术高6倍），价格合理且可持续的基于pcm的复合储热装置应用。它主要解决了能源存储挑战呼吁的材料和材料设计方面的问题，以提供高能量和功率密度。该项目还将开发实验和建模诊断工具，以监测和最大限度地提高PCM复合设备的效率。来自三所大学的五个不同研究小组的组织良好的研究人员将首先解决基本的PCM复合材料挑战，以解决低导电性，热膨胀和过冷问题，然后继续在模块和系统层面进行研究，以协助验证和优化新的PCM复合材料，以实现超过92-95%的最佳设备热效率，>至少节省25%的电费，减轻40%的重量和6000循环时间。最后，我们将建造家用空间加热器的例子，以展示我们材料的实际改进，我们将提供10千瓦的高效率，紧凑和低成本的设备原型，在诺丁汉创意之家进行演示。

项目成果

Investigation on the effective thermal conductivity of carbonate salt based composite phase change materials for medium and high temperature thermal energy storage

• DOI: 10.1016/j.energy.2019.04.029
• 发表时间: 2019-06
• 期刊: Energy
• 影响因子: 9
• 作者: Chuan Li;Qi Li;Yulong Ding

A novel method to predict thermal conductivity of NaCl/water based MCNT nano-suspesnion for cold energy storage

一种预测用于冷能存储的 NaCl/水基 MCNT 纳米悬浮液热导率的新方法

• DOI: 10.1016/j.egypro.2019.01.711
• 发表时间: 2019
• 期刊: Energy Procedia
• 作者: Huang Y

Multifunctional ultralight, recoverable, piezoresistive, and super thermal insulating SiC nanowire sponges

多功能超轻、可恢复、压阻、超隔热SiC纳米线海绵

• DOI: 10.1111/jace.18823
• 发表时间: 2022
• 期刊: Journal of the American Ceramic Society
• 影响因子: 3.9
• 作者: Chen Y

Molecular dynamics simulation of solar salt (NaNO3-KNO3) mixtures

• DOI: 10.1016/j.solmat.2019.04.019
• 发表时间: 2019-09-15
• 期刊: SOLAR ENERGY MATERIALS AND SOLAR CELLS
• 影响因子: 6.9
• 作者: Anagnostopoulos, A.;Alexiadis, A.;Ding, Y.
• 通讯作者: Ding, Y.

Simplified force field for molecular dynamics simulations of amorphous SiO2 for solar applications

• DOI: 10.1016/j.ijthermalsci.2020.106647
• 发表时间: 2021-02-01
• 期刊: INTERNATIONAL JOURNAL OF THERMAL SCIENCES
• 影响因子: 4.5
• 作者: Anagnostopoulos, Argyrios;Alexiadis, Alessio;Ding, Yulong
• 通讯作者: Ding, Yulong