发表成果

摘要 | Heat rejection from air conditioners not only contribute the outside environment surrounding the buildings but also increase the cooling loads. Based on it, A novel methodology to fully-scale amend the weather data in summer season is proposed, as a means of quantizing the results. Two software, EnergyPlus and Fluent were employed in this study. Three variables were inputted into Fluent ...

摘要 | This study proposes a hybrid space filling design method combining the high-dimensional clustering method with the existing statistical sampling method to design the variables and cases for a BPD of office buildings. With this method, we can build a BPD only including about 10,000 cases but having the capability of representing the high-dimensional space constructed by 16 building energy...

摘要 | Due to the diversity and randomness of heating and cooling usage behavior in buildings, occupant behavior can lead to great variation in building energy consumption. In the study of occupant behavior modeling, the characteristic parameters obtained from limited case studies are difficult to fully reflect the diversity and distribution characters of occupant behavior of large population. ...

摘要 | PID controllers are still prevailing in building environmental control due to its easy deployment and acceptable performance. However, it is common in practice that the PID controllers are not tuned properly because of the limited time for commissioning and the inexperienced practitioners. This study proposes a simulation-based method to provide instructions for on-site tuning. Due to th...

摘要 | 目前，对于公共建筑的集中式空调系统来说，其规模一般是比较大的。这也就意味着，储存在其水系统的冷冻水之中的冷量是相当可观的，具有利用的价值。在系统优化运行控制的层面来看，对该部分冷量的利用，相当于对空调水系统的运行进行优化的过程中，考察其自身的蓄能特性。在考虑到蓄能作用基础上的空调水系统优化算法，可以实现对应于峰谷电价的错峰填谷、提前关闭系统以利用剩余冷量等更广泛的优化排期功能。本研究以...

摘要 | 空调系统运行优化是建筑节能的重要组成部分。本文将强化学习算法应用在空调系统运行优化中。首先建立空调系统运行优化任务的马尔科夫决策过程模型，接下来确立规则对探索空间进行进一步缩减，使探索过程尽可能满足系统设备运行和被控区域舒适度的约束，最后应用 Q-Learning 算法探索学习不断改进控制策略。通过仿真案例对算法进行了测试。采用动态仿真软件 TRNSYS 和 MATLAB 进行联合仿真，对被控区域送风量进行了优化，...

摘要 | 随着人民生活水平的日益提高，我国酒店业市场呈现显著增长趋势。从国家能源安全和节能减排工作的角度出发，酒店类建筑面积的日益增长所带来的能源消耗和碳排放问题日益凸显；从酒店提高自身效益的角度出发，设备节能则是扩大利润的有效途径。本文根据酒店客房实测数据，确定了酒店客房人员在室率时间表；根据调研数据，建立了不同气候区不同客房尺寸的典型客房模型，并开发软件根据用户选择的节能措施对模型进行修改，模...

摘要 | 由于建筑能耗模型与实际数据间存在信息差，其模拟结果和实测值之间常出现误差，且此误差有时甚至超过 100%。误差的存在大大降低了模型的可信度，也削弱了其在建筑运行评价中发挥的作用。因此在建模的过程中，需要对模型进行校验，以降低模拟值和实际值之间的误差，增加可靠性。本文提出一种基于符号有向图的建筑能耗模型校验方法，将人工校验的知识和逻辑模块化，为人工智能大趋势下结合人工和自动校验双边优势的途径发...

摘要 | As an important part of green eco-community planning, reasonable community energy planning requires accurate community load prediction. Hence, this paper focuses on the method of community load prediction. Given that community energy planning has great uncertainty and forward-looking requirements, this paper proposes an integrated method of buildings load prediction, which combines build...

摘要 | In architectural design, solar energy building has become the focus of many architects. In order to achieve the expected energy efficiency, the appropriate energy system should be configured during the design phase in accordance with the idea of building integrated design. In this paper, a house was designed for Solar Decathlon competition 2017 in China. In order to reach the target of e...

摘要 | This paper aims to study the impact of community form on building energy consumption of commercial district. Building typology and FAR (floor area ratio) are two important morphology factors in district energy efficiency design. To explore how they influence building energy consumption, two major questions are concerning: (1) how a given FAR generates alternative building typologies that...

摘要 | Most of the local pressure loss coefficient (LPLC) models for duct fittings used in heating ventilation and air conditioning (HVAC) air-side system transient simulations are the simplified ones. The LPLCs are defined as a constant value at the rated flow condition or as a polynomial function of flow ratio (or velocity ratio). However, literature reviews give the evidence that the LPLC is...

摘要 | The operation effect of industrial process is largely determined by the automatic control system. In the conventional control process, the Proportional Integral and Derivative (PID) parameters need to be set according to the engineering experience. Not only is the control precision not enough, but also the robustness is poor. The performance of PID control based on the system transfer fu...

摘要 | Data-driven Models (DMs) play a significant role in the building energy prediction researches. The lack of targeted summary on DMs usually makes researchers and scientists engaged in promoting building energy performance confused of the selection and application of DMs. This paper primarily summarizes the application of DMs in the field of building energy prediction. According to the met...

摘要 | A good wind and thermal environment of residential districts can speed up the outdoor heat and pollutant dissipation, as well as ensure the comfort and health of residents. The thermal environment in residential districts is affected mainly by layout form, building shape, underlying surface characteristics, etc. In this paper, a residential area located in Qingdao is studied. Numerical s...

摘要 | In this study, we develop a quadratic homogeneous polynomial (QHP) regression model for predicting chillers and present its online tuning strategy. First, sample data is processed using the ordinary least square (OLS) method to obtain the initial QHP model. Second, errors occurred during on-site monitoring are categorized based on which data-processing rules are deduced to filter outlier...

摘要 | This study is to assess the impact of residential morphology and microclimate on energy use at the neighbourhood scale. At the scale of 200m×150m, based on the common residential forms in Shanghai, seven real residential districts are selected as research objects, including the garden houses, 6-storey flats, 14-storey flats, 28-storey flats, lane houses, slab-type apartments and high-ris...

摘要 | In this paper, a study to evaluate the feasibility of implementing naturalventilation using operable windows in an airtight high-rise office building, which is located in Shanghai (China), is presented. In this building, the natural ventilation would work collaboratively with the mechanical cooling/ventilation system. In order to help the building operator to decide whether the natural ...

摘要 | How much electricity lighting system consumes is up to number of factors, for instance architecture design, glazing specifications, light source, and so on. In order to improve lighting efficiency even more, proper control strategies are necessary to be applied. In which occupant behavior and visual comfort perception have to be considered at the same time.  This article is about a stud...

摘要 | Building shape coefficient is an important index in building energy efficiency design, it is considered that the smaller the indicator, the less heat loss via the building envelope and the less energy consumption. However, building energy consumption consists not only air-conditioning consumption, but also lighting consumption. This study is based on the concept of passive volume and ass...

摘要 | To study the performance of nozzle air supply in a large space building, this paper builds a simplified computational model of a large exhibition hall applied with vertical nozzle air supply system using the method of computational fluid dynamics (CFD). The Fluent software is used to realize the three-dimensional simulation and obtain the temperature field and velocity field in the occup...

摘要 | 采用TRNSYS与MATLAB联合仿真的方法将空调系统仿真运行和系统的优化控制动态结合起来, 在仿真平台上实现了空调系统模型预测控制策略的验证。在本文研究中, 以空调系统总能耗为目标函数优化每个控制时间步长内冷冻水供水温度和空气处理机组送风温度,并对该策略所带来的节能效益进行分析和评价。仿真结果表明, 相对于固定值控制策略, 采用模型预测控制的优化模型在夏季典型工况可以节省15.5%的能耗, 在过渡季节典型工况可以...

摘要 | 本文提出了一种基于人工神经网络的机械通风开式冷却塔运行性能在线预测方法。方法以四层BP网络为核心,利用进塔水温、空气湿球温度、塔内水气质量比这三个参数预测出塔水温。在对上海某建筑中的机械通风横流冷却塔进行测试后发现, 出塔水温在线预测值和实测值之间相关系数为0.95, 预测效果良好, 在线预测方法有效

摘要 | 本文将中国东部近百年和近千年气候变化的周期性与常规时间序列方法相结合, 针对上海近50年(1961～2010年)月平均温度观测结果进行时间序列分析。考虑气候变化的不确定性设定3种月际振动情景, 建立时间序列预测模型, 用于上海地区未来100年月平均温度预测。为了使气候变化预测结果能够用于建筑能耗模拟工具, 采用统计降尺度方法Morphing将预测的温度变化与当地现有典型气象年(TMY)相结合, 设定3种日间波动变化情景分别与月...

摘要 | 本文基于实际工程项目建立了并联连接混合式土壤源热泵系统的仿真模型, 通过系统实测数据与模拟数据的比较对模型的准确度进行了检验。并且基于己建立的系统模型分别对系统在温度控制、温差控制和冷却塔运行时间控制这3种控制策略下的长期运行情况进行了模拟, 分析比较了各控制策略在不同控制参数设定值下系统的长期运行性能及土壤热平衡情况, 得出了各控制策略对应的最优控制参数设定值, 并且得出了该系统最适合的控制方...

摘要 | This paper proposes a data-driven modeling method for building energy consumption prediction and applies it to two actual commercial buildings. Time series analysis is adopted as a main methodology to produce the data-driven model based on monthly actual energy consumption data. The models can be used to predict building future energy consumption, after being modified and verified

摘要 | Optimizing the operations of a HVAC system in response to the dynamic loads and varying weather conditions throughout a year can result in substantial energy savings. However, the problems related to HVAC system optimizationare always discrete, non-linear and highly constrained. So, a simulation-based optimization approach for a HVAC system is proposed. To minimize the energy consumptio...

摘要 | Future hourly Typical Meteorological Year (TMY) weather file is a prerequisite for utilization of building energy simulation software to estimate the impact of global climate change on building energy demand. On basis of Intergovernmental Panel on Climate Change - IPCC's latest predictions, this paper produces future TMYs of 3 representative cities in different climate regions in China f...

摘要 | This article is about a study on lighting control strategies for fluorescent lightingsystem applied in open-plan offices. The office where the test bed is located ispreviously illuminated by conventional fluorescent light tubes and manuallycontrolled. After retrofit, T5 tubes are installed instead and a DALI control system with occupants/light sensors is integrated into the system. Th...

摘要 | DOAS(dedicated outdoor air system) combined with CRCP (ceiling radiant cooling panel)has been getting more applications around the world due to its advantages on thermal comfort and human health. However, condensation control of ceiling radiant cooling panel is usually a big concern when this system is applied, especially in hot and humid regions. This paper focuses on the study of the c...

摘要 | 首先讨论了国内既有建筑节能改造与合同能源管理的现状, 对既有建筑节能量检测与验证的国内和国外的相关标准与规范做了总结和评价。再结合国内合同能源管理国情和实际的合同能源管理项目, 提出了基于实际案例的既有建筑综合改造节能量检测与验证导则, 然后详细介绍了导则内容,包括导则特色、关键词、4种方法、案例。导则提出了适应国内国情的相似日测量法, 并且基于ESCO公司真实项目和实际数据, 强调方法及原理, 步骤性强...

摘要 | This paper presents the status quo of new buildings and existing buildings in China and the applicable energy efficiency technologies in the two types of buildings. In order to offer a panoramic view of building energyefficiency industry in China, a full list with 63 adopted Energy Efficiency Technologies (EETs) is achieved, and they are classified into five categories: (1) Architectura...

摘要 | In order to make EnergyPlus easier to use in China, VisualEPlus, a Chinese graphical user interface for the program, has been developed. VisualEPlus is designed to be generic, so that it can be used in any country, as well as be linked to other modeling tools and interfaces for EnergyPlus. VisualEPlus has three main modules: (1) a Building Loads Module for defining the building geometry,...

摘要 | There are many new city and district development projects ongoing in China, which are aimed at developing and building the low carbon emission cities of the future. The Energy Utilities sector is also facing new challenges from policy and regulations aimed at improving energy efficiency, adopting clean energy and mitigating environmental impact. As such, energy supply systems are becomin...

摘要 | In order to make EnergyPlus easier to use in China, VisualEPlus, a Chinese graphical user interface for the program, has been developed. VisualEPlus is designed to be generic, so that it can be used in any country, as well as be linked to other modeling tools and interfaces for EnergyPlus. VisualEPlus has three main modules: (1) a Building Loads Module for defining the building geometry,...

摘要 | Chiller plants of HVAC systems usually operate in part-load conditions during most time of a year. Energy efficiency (i.e. energy input ratio, EIR) of chiller plant components such as chillers, pumps, and cooling towers are the functions of part-load ratio (PLR) and other variables. However, different chiller plant components have different functions of EIR to PLR and don’t reach their ...

摘要 | 本文将着重探讨开发适用于中国建筑能耗评测体系（或"建筑能耗评测工具"）的机会、选择和最新进展, 从而帮助在大范围内减少建筑类能耗及温室气体排放; 分享美国环保署"能源之星"(ENERGYSTAR)项目能耗评级体系开发和使用中得到的经验; 介绍"美国环保署评测工具"及最新的由美国国际开发署和能源基金会支持的、开发适用于中国的建筑能耗评测工具的进展; 开发活动由中国建筑科学研究院、同济大学和ICF国际咨询公司共同进行

摘要 | In recent years, highly glazed atriums are favorable to architectural aesthetics and to taking advantage of daylighting and solar heating. However, the estimation of the building load of an atrium building is difficult because of the complex thermal phenomena occurred in the atrium space. The study aims to find out the methods of conducting accurate simulations of the cooling loads of va...

摘要 | The Shanghai South Railway Station, which connects urban subways and inter-city railways, is one of the largest transportation hubs in Shanghai and East China. This paper presents study on indoor environment, bascally consisting of temperature distribution and daylight performance, of the waiting hall of the Station through the combination of computer simulation and on-site measurement. ...

摘要 | Public buildings include office building, schools, hotels, hospitals, retails and others. This paper selects two types of existing public buildings — office and hotel to conduct research. It firstly introduces and analyzes the feasible energy saving retrofitting strategies and technologies for existing public buildings in Shanghai, mainly about building envelope, HVAC system and lightin...

摘要 | The paper predicts and studies on the cooling loads of the pavilions in 2010 Shanghai World Expo based on the general planning of the expo. The simulation models are established using DOE-2, for the various pavilions: 5 permanent pavilions, national pavilions, international organization pavilions, corporate pavilions, and temporary exhibition pavilions. The modularization method is used ...

摘要 | 本文介绍了上海市商用建筑信息数据库, 包括建筑信息和历史能耗数据两部分。建筑信息主要包括建筑基本信息、空调系统信息和建筑使用情况。其中, 基本信息包括竣工年份、建筑面积、层高、围护结构材料、玻璃材料、建筑功能分区等信息;空调系统信息包括空调冷热源、空调系统形式、新风系统、冷却塔容量等相关信息;建筑使用情况包括空调运行时间、建筑使用时间等信息。历史能耗数据部分则包括了该建筑近几年全年各月的电、气...

摘要 | The method of calibrated computer simulation is summarized and introduced based on related literatures and guidelines, which is used to analyze the energy consumption of two high-rise commercial buildings in Shanghai, China. The detailed data of the buildings and systems are collected and input to build up models with DOE-2, then the output of simulation is compared to the measured energ...

摘要 | A statistics-based method for hourly solar radiation estimation is introduced in the paper. On the basis of hourly extra-atmospheric horizontal solar radiation calculation, a statistical method is adopted to find out the relationship between solar radiation in normal direction and total solar radiation on extra-atmospheric horizontal, as well as the relationship between diffuse solar rad...