Estimating ASHRAE Guideline 36 energy savings for multi-zone variable air volume systems using Spawn of EnergyPlus

IF 2.2 4区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY Journal of Building Performance Simulation Pub Date : 2022-01-28 DOI:10.1080/19401493.2021.2021286

Kun Zhang, David H. Blum, Hwakong Cheng, G. Paliaga, M. Wetter, J. Granderson

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引用次数: 14

Abstract

ASHRAE Guideline 36 (G36) publishes high-performance control sequences for Variable Air Volume (VAV) system operation. Retrofitting existing VAV control sequences to G36 promises to have a large potential for energy savings. However, it is difficult to estimate the savings accurately and the process of doing so can be costly and time-consuming. This paper evaluates the energy use of a multi-zone VAV system with terminal reheat using the G36 sequences and compares it to a group of baseline control sequences that represent existing practices. Spawn of EnergyPlus is used for the whole building simulation, where the envelope is modelled in EnergyPlus and the HVAC equipment and its pressure-flow network and the control sequences are modelled in Modelica. The comparison of the control sequences performance is further conducted in parametric studies. For a medium-sized commercial building, the G36 sequences provide a wide range of HVAC energy savings with an average of 31%.

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使用Spawn的EnergyPlus估计ASHRAE指南36的多区域可变风量系统的节能

ASHRAE指南36 (G36)发布了可变风量(VAV)系统运行的高性能控制序列。将现有的VAV控制序列改造为G36有望具有巨大的节能潜力。然而，很难准确地估计节省的费用，而且这样做的过程可能既昂贵又耗时。本文利用G36序列评估了带末端再热的多区域变风量系统的能源使用，并将其与代表现有实践的一组基线控制序列进行了比较。EnergyPlus的Spawn用于整个建筑的模拟，其中围护结构在EnergyPlus中建模，HVAC设备及其压力流网络和控制序列在Modelica中建模。在参数化研究中进一步对控制序列的性能进行了比较。对于中型商业建筑，G36系列提供了广泛的暖通空调节能，平均为31%。

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来源期刊

Journal of Building Performance Simulation CONSTRUCTION & BUILDING TECHNOLOGY-

CiteScore

5.50

自引率

12.00%

发文量

审稿时长

12 months

期刊介绍： The Journal of Building Performance Simulation (JBPS) aims to make a substantial and lasting contribution to the international building community by supporting our authors and the high-quality, original research they submit. The journal also offers a forum for original review papers and researched case studies We welcome building performance simulation contributions that explore the following topics related to buildings and communities: -Theoretical aspects related to modelling and simulating the physical processes (thermal, air flow, moisture, lighting, acoustics). -Theoretical aspects related to modelling and simulating conventional and innovative energy conversion, storage, distribution, and control systems. -Theoretical aspects related to occupants, weather data, and other boundary conditions. -Methods and algorithms for optimizing the performance of buildings and communities and the systems which service them, including interaction with the electrical grid. -Uncertainty, sensitivity analysis, and calibration. -Methods and algorithms for validating models and for verifying solution methods and tools. -Development and validation of controls-oriented models that are appropriate for model predictive control and/or automated fault detection and diagnostics. -Techniques for educating and training tool users. -Software development techniques and interoperability issues with direct applicability to building performance simulation. -Case studies involving the application of building performance simulation for any stage of the design, construction, commissioning, operation, or management of buildings and the systems which service them are welcomed if they include validation or aspects that make a novel contribution to the knowledge base.