Performance characterization and feasibility analysis of natural gas heat pumps for canadian weather conditions: experimental and numerical investigations

相对于电动热泵，气体热泵正变得具有成本竞争力，并被许多国家作为空间和水供暖以及空间制冷的可行替代方案而被接受。温室气体热泵有两种类型：燃气机热泵(GEHP)和燃气吸收热泵(GAHP)。热泵与空气源热泵(ASHP)相似，不同之处在于热泵和热泵分别使用天然气发动机和锅炉，而不是电动压缩机。通常，温室气体热泵的一次能源转换效率比其他建筑供暖/制冷方案更好。然而，由于加拿大没有温室气体排放方案的长期业绩数据，因此无法确定其真正的技术经济潜力。该项目旨在填补这一知识空白。Union Gas和Enbridge认识到温室气体排放计划在加拿大的潜在用途，并计划与冯博士合作，调查与全球热泵开发和实施相关的绩效和整合问题。这项研究涉及加拿大对GHP接受的适宜性、性能可靠性和限制条件的研究。这些目标将通过实验研究和计算机模拟来实现。将在三个试验点收集现场性能数据，以建立系统的加热/制冷性能曲线、能量强度、一次能源转换效率、温室气体排放和循环特性。将开发和验证模拟模型，然后用于评估特定地点的效益。将进行可行性、敏感性和可靠性分析，因为它们对于证明温室气体排放计划在加拿大建筑中的相关性具有同等重要的意义。该项目将更深入地了解温室气体排放方案在加拿大的采用和利用情况，以促进研究伙伴制定长期业务战略。传统热泵市场正在增长，对温室气体排放的接受将进一步加速这一进程。这项研究促进了这一主题的高级学习，并建立了一支高技能人员团队，并利用现有的基础设施和专业知识为瑞尔森未来的研究和培训创建了一个新的设施。

Gas heat pumps (GHPs) are becoming cost competitive relative to electric heat pumps, and are being accepted in many countries as a viable alternative for space and water heating as well as for space cooling. GHPs are of two types, Gas Engine Heat Pump (GEHP) and Gas Absorption Heat Pump (GAHP). GHPs are similar to air source heat pumps (ASHPs), except that a natural gas-fired engine and boiler are used in GEHP and GAHP, respectively, rather than an electric motor driven compressor. Usually, GHPs have better primary energy conversion efficiency than other building heating/cooling options. However their true techno-economic potentials could not be ascertain since no long-term performance data of GHPs is available in Canada. This project is intended to fill this knowledge gap. Union Gas and Enbridge recognize the potential utilization of GHPs in Canada and have planned this collaboration with Dr. Fung to investigate the performance and integration issues related to GHP development and implementation. This research involves study on the suitability, performance reliability, and constraints in GHP acceptance in Canada. The objectives will be achieved through experimental studies and computer simulations. Field performance data will be collected at three experimental sites to establish heating/cooling performance curves, energy intensity, primary energy conversion efficiency, GHG emissions, and cyclic characteristics of the systems. Simulation models will be developed and validated and then used for evaluation of site-specific benefits. Feasibility, sensitivity, and reliability analysis will be carried out since they are equally significant to demonstrate the relevance of GHPs in Canadian buildings. The project will provide deeper insight into the adoption and utilization of GHPs in Canada to facilitate the development of long-term business strategies of research partners. Conventional heat pump market is growing and the acceptance of GHPs will further accelerate this process. This research promotes advanced learning on this subject and builds a team of highly skilled personnel, and exploits the existing infrastructure and expertise to create a new facility for future research and training at Ryerson.