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Techno-economic performance evaluation of building cooling systems: A study of snow storage and conventional chiller systems

机译：建筑冷却系统的技术经济绩效评估：储雪和常规冷却器系统的研究

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摘要

The residential building sector in Canada consumes 17% of the total energy and contributes to 15% of the total greenhouse gas emissions. Predominantly, the energy demand for cooling in the residential sector is increasing due to large occupancy floor area and high usage of air-conditioning. Minimizing energy use and associated emissions is one of the highest priority goals set for national energy management strategies in developed countries, including Canada. In this research, a probabilistic feasibility evaluation framework is developed to: i) evaluate the techno-economic performance of different snow storage systems, namely conventional snow storage, watertight snow storage, high-density snow storage, and ii) compare the performance of snow storage systems with the conventional chiller system. The technical and economic performances of all the building cooling system alternatives are evaluated in terms of the coefficient of performance and the total cooling cost per kilowatt-hour at the facility, respectively. Monte-Carlo simulations were performed to address the uncertainties involved in the techno-economic parameters. The framework has also been implemented on a low-rise residential building in Kelowna (British Columbia, Canada) to appraise its practicality. The study results verified that overall snow storage systems are more energy efficient and cost effective options for building cooling systems. This research will support decision-makers in future for selecting sustainable options for building cooling systems. (C) 2016 Elsevier B.V. All rights reserved.
机译：加拿大的住宅建筑部门消耗了总能源的17％，占温室气体总排放量的15％。主要原因是，由于居住面积大和空调使用率高，住宅部门对制冷的能源需求正在增加。最大限度地减少能源使用和相关的排放是包括加拿大在内的发达国家制定的国家能源管理战略的最高优先目标之一。在这项研究中，开发了一个概率可行性评估框架，以：i）评估不同储雪系统的技术经济性能，即常规储雪，水密储雪，高密度储雪，以及ii）比较雪的性能存储系统与常规冷却器系统相同。根据建筑物的性能系数和每千瓦时的总制冷成本，分别评估所有建筑物制冷系统替代方案的技术和经济性能。进行了蒙特卡洛模拟，以解决技术经济参数中涉及的不确定性。该框架还已在Kelowna（加拿大不列颠哥伦比亚省）的一栋低层住宅楼中实施，以评估其实用性。研究结果证实，整个积雪系统对于建筑冷却系统而言是更节能和更具成本效益的选择。这项研究将为将来的决策者提供支持，以选择可持续的建筑冷却系统选择。 （C）2016 Elsevier B.V.保留所有权利。

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