Low Cost Solar Thermal System

低成本太阳能热系统

• 批准号: EP/N508627/1
• 负责人: Tadhg O'Donovan
• 金额: $ 11.48万
• 依托单位: Heriot-Watt University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN508627%2F1
• 关键词: Low; Cost; Solar; Thermal; System

Most solar thermal systems have a separate antifreeze filled loop for protection against freezing and require a new tankfitted with a heat exchanger. When retrofitting, a perfectly good tank (usually copper) needs to be replaced. Soltropy Ltdhas developed an innovative solution that allows a domestic water supply to be heated directly without the secondary fluidcycle. This increases the efficiency of the system and reduces capital and installation costs by allowing the system tofreeze but cause no damage; this is achieved by incorporating a compressible tube within an outer copper pipe. When thesystem freezes the compressible tube takes up the expansion due to the ice and prevents pressure build up. As part of thisproject the thermal connection between the header pipe and the heat pipe in the evacuated tube will modularised, allowinga standard copper pipe to be used as the header with single units clamping over the pipe. This will reduce costs further asthe modular connector can be mass produced. In addition the control system will be optimised, simplified and modularised.Tests at Heriot-Watt University to date have shown that the Soltropy system behaves differently from an "old style" systemand therefore requires different control strategies.

大多数太阳能热系统都有一个单独的防冻剂填充回路，以防止冻结，并需要一个新的坦克配备了热交换器。当改装时，需要更换一个非常好的水箱（通常是铜的）。Soltropy有限公司开发了一种创新的解决方案，允许家庭供水直接加热，而无需二次流体循环。这提高了系统的效率，并通过允许系统冻结而不造成损坏来降低资金和安装成本;这是通过在外部铜管内结合可压缩管来实现的。当冰结冰时，可压缩管吸收由于冰而产生的膨胀，并防止压力积聚。作为该项目的一部分，真空管中的集管和热管之间的热连接将模块化，允许标准铜管用作集管，单个单元夹在管道上。这将进一步降低成本，因为模块化连接器可以大规模生产。此外，控制系统将被优化、简化和模块化。迄今为止，赫瑞瓦特大学的测试表明，Soltropy系统的行为与“老式”系统不同，因此需要不同的控制策略。

项目成果

Thermal performance predictions and tests of a novel type of flat plate solar thermal collectors by integrating with a freeze tolerance solution

• DOI: 10.1016/j.enconman.2019.111784
• 发表时间: 2019-10
• 期刊: Energy Conversion and Management
• 影响因子: 10.4
• 作者: Jie Deng;T. O'Donovan;Z. Tian;J. King;Stuart Speake

Solar Thermal Technologies for Domestic Hot Water Applications: an Energy and Economic Investigation Comparing Flat Plate and Evacuated Tube Type Collectors

用于生活热水应用的太阳能热技术：比较平板式和真空管式集热器的能源和经济研究

• 发表时间: 2017
• 作者: Ghani, F.