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Urban building energy modeling considering the heterogeneity of HVAC system stock: A case study on Japanese office building stock

机译：考虑暖通空调系统存量异质性的城市建筑能耗建模：以日本办公楼存量为例

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摘要

Urban building energy model (UBEM) is an important tool in coping with energy issues of building sector. This paper focuses on an issue that the stock of heating, ventilation, and air-conditioning (HVAC) systems has been oversimplified in UBEM without considering its heterogeneity. It has been observed that this oversimplification may incur a significant error in the result. To address this issue, this paper proposes a framework that integrates a logistic regression based HVAC system stock modeling method and the bottom-up type engineering modeling method using building archetypes considering HVAC system configurations. A case study with Japanese office building stock revealed that (1) the disregard of the heterogeneity resulted in an error of 15% in the annual primary energy consumption, (2) the historical change in the HVAC system stock could decrease the consumption up to 5%, and (3) its composition has a significant influence on the energy saving due to energy efficiency increase in heat source machines used in HVAC systems. The presented method would contribute not only to improving the reliability of UBEM but also to providing an analytical capability of considering energy efficiency technologies related to HVAC systems along with the alternation of technology selection in the building stock. (C) 2019 Elsevier B.V. All rights reserved.
机译：城市建筑能源模型（UBEM）是应对建筑行业能源问题的重要工具。本文关注的一个问题是，UBEM中的供暖，通风和空调（HVAC）系统的库存已过分简化，而没有考虑其异质性。已经观察到，这种过度简化可能导致结果出现重大错误。为了解决这个问题，本文提出了一个框架，该框架结合了基于逻辑回归的HVAC系统库存建模方法和自底向上的工程建模方法，并使用考虑了HVAC系统配置的建筑原型。一项针对日本办公楼库存的案例研究表明：（1）忽略异质性导致年度一次能源消耗的误差为15％，（2）HVAC系统库存的历史变化可能将能耗降低至5 （3）由于HVAC系统中使用的热源机的能效提高，其组成对节能有重大影响。所提出的方法将不仅有助于提高UBEM的可靠性，而且还提供了一种分析能力，可以考虑与HVAC系统相关的节能技术以及替代建筑材料中的技术选择。 （C）2019 Elsevier B.V.保留所有权利。

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