Construction practice of market system for energy saving renovation of existing buildings

The energy-saving reconstruction market of existing buildings is a complex system.It includes three subsystems:service market,capital market and technology market.The service market takes the relationship between energy service companies and owners as the core to establish service associated relationships.The capital market is based on the mechanism of"investment guarantees and risk sharing"to form structures of the capital market.The technology market relies on the"industry-university-research"mode to build technology supporting platforms.Being interdependent and mutually restricted,the three subsystems form the complete system of existing buildings in energy-saving reconstruction.

Solar Energy and Residential Building Integration Technology and Application

Building energy saving needs solar energy, but the promotion of solar energy has to be integrated with the constructions. Through analyzing the energy-saving significance of solar energy, and the status and features of it, this paper has discussed the solar energy and building integration technology and application in the residential building, and explored a new way and thinking for the close combination of the solar technology and residence.

Indicator system of energy efficient technologies evaluation of residential buildings in hot summer and cold winter regions of China

The related existing energy saving index system of buildings is deficient in direction, index coverage, depth, and technological and economic considerations. Aiming at the deficient existing research and with the advancement of energy saving of buildings in China from northern heating regions to southern hot summer and cold winter regions, selecting residential buildings in hot summer and cold winter regions as the research object, and through much evaluation index reference and repeated demonstrations and the borrowing of literature research home and abroad and relevant energy saving standards, filters and eliminates energy efficient technologies evaluation indexes according to the design principle of index system, the factors influencing the energy saving of residential buildings are evaluated, index system weight is established by adopting analytic hierarchy process, and finally the evaluation index system of energy saving technologies of residential buildings in hot summer and cold winter area of China is established. Each target layer includes five standard layer indexes and sixteen index layer indexes. The standard layer of evaluation index, namely primary indexes, includes the technological, energy saving effect, economic, environmental, and social indexes. The secondary indexes are selected based on the principles of concision, comprehensiveness, representativeness and operability.

Research on Key Technologies of Solar Photovoltaic Building Integration

On December 21,2020,The State Council Information Office issued a white paper titled"China's Energy Development in the New Era,"in which the installed capacity of hydropower,wind power,photovoltaic power and biomass power generation in China ranked first in the world[1].Solar photovoltaic power generation is the most important development direction of clean energy in the world.It is an important energy strategy to combine it with the field of construction in China.This paper mainly introduces the characteristics and problems of the key technologies of solar photovoltaic building integration,and explores its future development direction and ways,in order to constantly promote the industrialization of new energy technology in China.

Building-integrated renewable energy policy analysis in China

With the dramatic development of renewable energy all over the world,and for purpose of adjusting energy structure,the Ministry of Construction of China plans to promote the large scale application of renewable energy in buildings. In order to ensure the validity of policy-making,this work firstly exerts a method to do cost-benefit analysis for three kinds of technologies such as building-integrated solar hot water (BISHW) system,building-integrated photovoltaic (BIPV) technology and ground water heat pump (GWHP). Through selecting a representative city of every climate region,the analysis comes into different results for different climate regions in China and respectively different suggestion for policy-making. On the analysis basis,the Ministry of Construction (MOC) and the Ministry of Finance of China (MOF) united to start-up Building-integrated Renewable Energy Demonstration Projects (BIREDP) in 2006. In the demonstration projects,renewable energy takes place of traditional energy to supply the domestic hot water,electricity,air-conditioning and heating. Through carrying out the demonstration projects,renewable energy related market has been expanded. More and more relative companies and local governments take the opportunity to promote the large scale application of renewable energy in buildings.

冰上运动建筑曲面光伏参数化集成设计研究

2022年冬奥会成功举办,国内掀起了冰上体育运动的热潮,冰上运动建筑需求量和能源消耗量随之增长。光伏建筑一体化(Building Integrated Photovoltaic,BIPV)作为建筑节能的主要手段之一,在体育建筑屋面具有较大的集成潜力。通过建立寒冷地区曲面冰上运动建筑典型模型进行集成设计研究,基于Grasshopper参数化平台实现新型柔性CIGS薄膜光伏组件沿屋面曲线形态的优化布置,从两个层级出发,提出参数化设计方法与构造措施。通过Honeybee进行能耗模拟,结果表明,该柔性光伏系统全年可以为冰上运动建筑降低15.82%的能量消耗,进而验证了该方案的节能性,为建筑师进行寒冷地区曲面冰上运动建筑设计的节能优化设计提供数据支撑及科学依据。

“绿数互联”——基于蒙德里安新造型主义的展览建筑节能技术研究

在建筑的全寿命周期内,最大限度地节能减排是建筑设计的趋势。文章以蒙德里安造型的展览建筑为例,提出将参数化设计与性能模拟技术相结合,并在建筑设计阶段融入绿色建筑技术的新思路,以此提升绿色建筑设计的效率和质量。

外窗节能设计与集成技术

建筑外窗作为建筑围护构件中最不节能的部件,包括传热系数(U值)、可见光透射率(T_(vis))、太阳热增益系数(S_(HGC))等在内的光热性能指标直接影响了建筑的能耗。为了更加全面地了解建筑外窗节能设计的关键技术,通过数据库资料详细梳理了前人的相关研究成果。研究发现:窗墙比、建筑遮阳、窗框、窗玻璃、气密性等是影响建筑外窗节能的关键要素;集成技术在外窗节能设计方面具有明显的优越性,能够极大提高外窗的节能效率;人的行为方式对外窗节能效率也会产生较大的影响。

城市地铁车站地下空间绿色建筑设计方法研究

为了降低城市地铁车站地下空间绿色建筑的全年总能耗占比,提出一种绿色建筑设计方法,包括采光设计、节地设计和环保设计。采光设计运用技术引入自然光,并通过手动照明补偿不足;节地设计采用垂直布局减少占地面积;环保设计利用BIM技术实现高质量环保建筑。实验结果表明,该设计方法可将年度总能耗占比降至83.2%,满足预期标准,优化了城市地铁车站地下空间绿色建筑的设计方法,为绿色建筑的可持续发展提供了新思路。

外显、灵活、多维、高效——从2022中国国际太阳能十项全能竞赛看建筑与光伏一体化设计趋势

建筑光伏一体化技术是实现建筑行业节能减碳的重要途径。以第三届中国国际太阳能十项全能竞赛(SDC2022)为例,对15个参赛作品在建筑与光伏一体化设计上的特征进行了比较,从美学表现、构造整合、功能复合、性能提升4个维度分析了当前建筑与光伏一体化的设计新趋势,指出:在美学表现上,通过光伏组件材质外观和光伏方阵形成积极外显的形态;在构造上,采用不同类型光伏灵活组合衍生多种应用场景;在功能上,将光伏发电与建筑围护结构的采光、集热、遮阳、防护等功能进行多维度复合;在性能上,通过光伏朝向与倾角、散热设计和电气系统综合提升产能效率。为建筑与光伏一体化技术的推广和应用提供新思路。

建筑给排水系统节能节水技术分析

随着全球水资源短缺及环境污染问题日益严峻,开展建筑给排水系统节能节水技术应用研究显得尤为重要。目前,针对给排水系统节能节水技术的研究已有很多,但很少有研究涉及该技术在建筑工程中的应用及效果评估。在明确建筑给排水系统相关概念及其重要性的基础上,阐述给排水节能节水技术的应用原则,并结合具体案例深度剖析给排水建筑节能节水技术的应用实际,从中水回用系统、雨水收集再利用系统、变频泵站、节水型卫生洁具等应用层面出发,评价节能节水技术的实际应用效果。结果表明,这些技术的有效应用可显著降低水资源消耗,减少能源使用,提高给排水系统的稳定性。

光储一体化电源系统节能分析

文章介绍了光储一体化电源系统项目实施的背景,以及光储一体化电源系统的组成、功能原理、关键技术、主要特性、性能参数等,并进行了节能效果分析计算,对打造绿色低碳机房,实现节能减碳降费将起到重要作用。

街区尺度微气候影响下的垂直绿化热效应研究

基于局地气候区(local climate zone, LCZ)背景气象条件,借助ENVI-met和EnergyPlus终端耦合模拟,评估了夏、冬季垂直绿化的降温、增湿和节能效应。结果显示:在热岛效应和相对湿度差异分别为1.4℃和5.3%的微气候影响下,垂直绿化的降温和增湿最大差异分别为0.16℃、1.1%;夏季垂直绿化单日节能量约132~278 W·h/m^(2)(5.7%~11.7%),全年节能量被冬季所增加的能耗部分抵消,节能率仅为3.2%~6.3%,其中92%来自植被遮荫,8%来自降温,而增湿对于节能效应则主要为负面影响(-11%)。研究结果有助于加深对微气候作用下垂直绿化响应机制及节能潜力的理解,为垂直绿化设计应用提供支撑。

现代绿色建筑节能设计探析

结合甘肃省兰州市某区公共办公楼,对现代绿色建筑节能设计进行分析与研究。主要对天然采光技术、绿色节能墙体技术、节能屋面技术3种节能技术进行了详细论述。结果表明,节能技术不仅可以有效提高建筑节能效率,还能精准降低建筑使用能耗。

城市更新项目中外墙保温技术应用

本文主要探讨了城市更新项目中老旧小区外墙保温技术的应用。通过分析老旧小区建筑外墙节能保温的现状,阐述了外墙保温技术的意义和重要性。本文从建筑外墙保温构造做法、工艺流程、施工中容易忽略的问题及保温施工通病及措施等四个方面,介绍了各种节能保温技术的具体应用方法和效果。最后,总结了城市更新项目中老旧小区外墙保温技术的发展趋势和未来发展方向。

建筑施工中绿色节能建筑施工技术的应用策略研究

以上海科技环保城项目施工为例,分析了该项目中应用的绿色节能建筑施工技术,并总结了其应用策略。研究结果表明,绿色节能建筑施工技术的应用可以有效降低建筑施工对环境的影响,提高建筑的节能性能,同时也可以为建筑施工企业带来经济效益。因此,建议在今后的建筑施工中,应更加广泛地应用绿色节能建筑施工技术,并制定相应的应用策略,以推动建筑施工行业的可持续发展。

浅谈低碳节能大趋势下绿色建筑节能减排技术

在低碳节能趋势下,为了实现建筑行业的可持续发展,提高节能减排技术的应用水平,论文对低碳节能趋势进行探讨,总结了绿色建筑节能减排技术的应用现状,指出绿色建筑节能减排技术的应用存在建筑施工及运行耗能过大,造成了严重的环境污染等问题,并对节能减排技术要点进行了阐述。

绿色建筑与建筑节能设计探究

为了全面提升绿色建筑工程项目施工质量,需要充分践行建筑节能环保的设计要求,发挥设计环节的优势,共同构建完整的建筑工程项目环保规划,对绿色建筑协同作业的优化予以支持,实现经济效益和环保效益和谐统一的目标。文章简要分析了绿色建筑与建筑节能设计技术内容,并结合案例对具体应用方案展开讨论。

建筑外墙外保温系统节能施工技术探析

伴随当下社会的不断进步,科学技术的日益提高同样促使建筑行业迈入了一个崭新的台阶,这也就促使人们开始将目光转移到居住环境上来,尤其是房屋建筑方面的需求也越来越高。当前,与建筑物外保温有关的技术已引起社会各方的高度重视,它直接影响着人类是否能够获得一个更为舒适的居住环境。作者从建筑外墙外保温系统节能技术的概况入手,对外墙外保温系统的施工工艺进行了较为系统的讨论,希望可以为提高我国建筑外墙外保温工程的品质,同时也为相关研究提供一些借鉴。

高层建筑外墙保温施工技术及节能材料的应用研究

在土建建筑绿色节能设计与施工要求的前提下,高层建筑外墙面的保温施工,也要采取重量轻、强度高、采光好的墙体保温材料,从不同保温层材料的物理特性、施工工艺等角度出发,进行建筑外墙保温施工重要工序的规划设计。通过围绕高层建筑外墙保温、节能、环保等的建设需求,探讨不同类别建筑材料的结构构造、通风状况与保温效果,并设置建筑工程保温施工的执行流程,以满足现代建筑工程的保温、节能与降耗要求。