Novel Variable Conductance Heat Pipe Coupled with a Stirling Engine

新型变传导热管与斯特林发动机耦合

• 批准号: EP/L505912/1
• 负责人: Chris Underwood
• 金额: $ 4.77万
• 依托单位: Northumbria University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2014
• 资助国家: 英国
• 起止时间: 2014 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FL505912%2F1
• 关键词: Novel; Variable; Conductance; Heat; Pipe

The proposed work involves the design, construction and testing on a micro-combined-heat-and-power (mCHP) unit of avariable capacity heat pipe (VCHP) in which the mCHP waste heat is managed using one or more (depending uponcapacity of the store) novel heat pipes arranged to link with a phase change material (PCM) thermal store. Novelty lies inthe use of an inert gas inventory in the heat pipe whose pressure can be varied in response to domestic heating demandand the inclusion of a compact PCM thermal store. Variations in inert gas pressure are used to regulate the domesticheating system heat exchange surface area (and, hence, capacity) smoothly and continuously, whilst the PCM thermalstore is used to manage the availability of this heat over extended time horizons. Though the proposal is focused ondomestic-scale mCHP applications, the concept is equally applicable to larger scale commercial combined heat and powerplants.Northumbria's University's contribution is to develop a simulation model of the mCHP unit and VCHP and use the model todesign a domestic-scale experimental pilot rig. The pilot rig will be constructed in Northumbria's Low Carbon Systemslaboratory using an existing Stirling cycle mCHP module. The VCHP unit will be constructed by the collaborators to thesizing specification designed with the assistance of the simulation model. Northumbria will perform a series of experimentsat thermal demands relevant to typical domestic heating loads - both winter (space heating and hot water) and summer (hotwater only). The intention is to develop the research to a proof-of-concept stage only. A further application of thesimulation model will be used to design system options for a range of house types with differing occupancies and heatingdemands. Results will be reported as a basis for possible prototying and field demonstration.

建议的工作包括设计，建造和测试的微型热电联产（mCHP）单元的可变容量热管（VCHP）中，mCHP废热管理使用一个或多个（取决于存储容量）的新型热管安排与相变材料（PCM）热存储链接。新奇之处在于在热管中使用惰性气体，其压力可以根据家庭供暖需求而变化，并包括紧凑的PCM热存储器。惰性气体压力的变化用于平稳和连续地调节家用制冷系统的热交换表面积（以及因此的容量），而PCM热存储器用于在延长的时间范围内管理这种热量的可用性。虽然该提案的重点是国内规模的mCHP的应用，这一概念同样适用于更大规模的商业热电联产。诺森比亚大学的贡献是开发mCHP单元和VCHP的模拟模型，并使用该模型设计一个国内规模的实验性试验台。试验装置将在诺森比亚的低碳系统实验室使用现有的斯特林循环mCHP模块建造。合作者将根据仿真模型设计的尺寸规格建造VCHP单元。诺森比亚将进行一系列的实验，在热需求相关的典型家庭供暖负荷-冬季（空间供暖和热水）和夏季（热水）。目的是将研究发展到概念验证阶段。模拟模型的进一步应用将用于设计具有不同职业和供暖需求的一系列房屋类型的系统选项。结果将作为可能的原型和现场演示的基础进行报告。