公共建筑供热节能分析

本文针对公共建筑采取值班采暖运行方式进行了节能分析,公共建筑应实施供热计量收费,同时根据正常供暖与值班供暖的时间关系,供热外网实施24h供热调节,使公共建筑即节能又经济,促进全社会的建筑节能。     

安贞西里小区供热的系统诊断和平衡供暖

本文介绍了系统诊断和平衡供暧技术在安贞西里小区供热中的应用情况。目前,我国不少小区供热系统水力热力工况严重失调,能耗高,供暖质量差,急需进行系统诊断和节能改造。安贞西里小区供热系统节能改造的成功经验证明,应用平衡供暖技术是节能和提高供热质量的有效途径。     

莱芜启动既有公共建筑供热计量改革

为进一步推进城镇供热体制改革，加快既有建筑供热计量节能改造步伐，山东省莱芜市将在今年启动既有公共建筑供热计量改革，计划于今年10月底完成。     

公共建筑的供热节能

阐述了供热体制改革后公共建筑的供热特点,提出了实行分时供热的方法,当热用户自主调节用热后,对供热管网如何适应这种变化、实现按需供热作了分析,并得出公共建筑实行分时供热后节能效果大大改观的结论.     

公共建筑供热节能控制

公共建筑供热节能器是针对大型公共建筑的用热特点而专门设计的,用于公共建筑热入口处的节能器。公共建筑供热节能器的产生,解决了公共建筑不可调的缺憾。公共建筑供热节能器在建筑物无人使用时可自动调节降低供热量,达到节能的目的。本文简单介绍了公共建筑供热节能器的组成和控制策略。     

建设部公布推进供热计量收费工作目标——机关楼供热改造两年完成

为了节约能源，建设部近目提出了“稳步推行按用热量计量收费制度。促进供用热双方节能”的要求。要从政府机关和公共建筑做起．全面实施供热计量工作，建立和完善供热计量收费机制，有条件的地区应从今年开始实施热计量收费；新建供热系统必须满足热计量技术要求，既有供热系统原则上应在2-4年内通过技术改造达到热计量要求。2006年采暖季前，各地应选择一定数量的政府机构办公楼等建筑进行供热计量改造；2008年采暖季前。政府机构办公楼等建筑原则上应全部完成供热计量改造，达到热计量的要求。     

DRN节能阀在公建集中供热系统中的应用

公共建筑无需24小时恒温供热,尤其在公休日和节假日,只需保证值班采暖温度,采用DRN智能控制节能阀,可实现按需供热。实践表明,DRN智能控制节能阀节能潜力巨大。     

公共建筑热-冷-热水联供方案的比较

以濮阳市会展中心为例，比较了大型公共建筑的3种供热、供冷、供生活热水的三联供方案。     

解锁热计量——供热计量与供热节能专题：“法”治供热节能——《民用建筑节能条例》法定供热计量

供热采暖系统在建筑节能中具有重要地位。在居住建筑节能50％的设计标准中．采暖系统分担20％;在公共建筑节能50％的设计标准中．空调采暖系统分担约18％。因此．供热采暖系统与建筑节能密切相关。《民用建筑节能条例》分别在总则、新建建筑节能、既有建筑节能、建筑用能系统运行节能四个章节中对供热采暖系统节能和供热计量作出了明确规定。     

建设部发布《关于推进供热计量的实施意见》

为了深化供热体制改革，积极推进供热计量，实现按热量交纳热费，促进供热采暖系统节能，建设部近日发布《关于推进供热计量的实施意见》。     

传统民居的气候适应性对建筑节能设计的启示

建筑的气候适应性是建筑节能设计需要妥善解决的重要问题。本文对福建传统民居在选址、规划、布局和建造使用过程等多方面所体现的与自然环境的良好适应性加以分析,借鉴国外一些著名建筑的节能设计方法,指出将传统民居成熟且成功的气候适应性设计手法与现代建筑技术手段相结合,能够创造出具有适应地域气候特点的节能建筑。     

谈湖南地区居住建筑节能技术措施

分析当前湖南地区的建筑能耗状况,强调建筑节能的重要意义;针对湖南的气候特点,论述墙体、门窗、屋顶等各部分节能技术措施问题。     

办公建筑照明节能设计探讨

本文在对办公建筑照明节能问题进行分析的基础上,针对现代办公建筑中常见的开敞办公区域进行了照明节能设计,并重点对节能设计中的功率密度及照明控制方式进行了详细阐述;最后介绍了办公建筑电气照明节能设计要注意的其它问题。     

浅谈水环热泵空调系统

介绍了水环热泵空调系统的原理及其特点,阐述了水环热泵中央空调系统的优点,分析了该系统的缺点,并提出了相应的解决措施,指出水环热泵系统具有良好的节能效果,同时具有巨大的节能潜力和广阔的应用前景。     

浅谈建筑节能技术

我国建筑属于高能耗建筑,近几年,建筑节能问题越来越受到政府和社会各界的重视,建筑节能技术也在飞速发展中,重点介绍了建筑节能中维护结构的保温隔热技术。     

从传统技术而来的建筑气候设计

营造舒适的环境是建筑设计的目的之一。然而，在舒适与节能之间往往存在着矛盾。如何解决这个矛盾是当前建筑设计领域中一个重要的课题。在传统乡土建筑中蕴藏着一些适应当地气候的技术。在此基础上，文章研究了结合气候与传统技术营造低能耗建筑的案例，提出了创造低能耗、舒适的建筑之对策。     

Primary energy implications of ventilation heat recovery in residential buildings

In this study, we analyze the impact of ventilation heat recovery (VHR) on the operation primary energy use in residential buildings. We calculate the operation primary energy use of a case-study apartment building built to conventional and passive house standard, both with and without VHR, and using different end-use heating systems including electric resistance heating, bedrock heat pump and district heating based on combined heat and power (CHP) production. VHR increases the electrical energy used for ventilation and reduces the heat energy used for space heating. Significantly greater primary energy savings is achieved when VHR is used in resistance heated buildings than in district heated buildings. For district heated buildings the primary energy savings are small. VHR systems can give substantial final energy reduction, but the primary energy benefit depends strongly on the type of heat supply system, and also on the amount of electricity used for VHR and the airtightness of buildings. This study shows the importance of considering the interactions between heat supply systems and VHR systems to reduce primary energy use in buildings.     

Energy consumption and conservation in the Russian apartment building stock

Energy consumption of buildings in Russia and other states of the former Soviet Union has typically been reported in very coarse terms, as annual energy use normalized by weather and floor area. Reported figures, based on estimates derived from available energy-delivery data, have shown that Russian residential buildings consume on the order of twice as much primary energy for space-heating as those in some developed Western countries. Reports have been accompanied with qualitative assertions that higher levels of insulation, reduced air infiltration, and better control of heating systems could reduce energy use. However, there has been a dearth of data that first distinguish Russian buildings by construction type and insulation level, and second attempt to quantitatively pinpoint causes for the relatively high energy use. Such data are needed to focus contemporary energy-conservation efforts in Russia on the most promising areas. This paper presents a preliminary set of information that illuminates these areas, concentrating on the city of Moscow. The analysis breaks down Moscow's district-heated apartment building stock by type and year of construction and by the required thermal standards in force at the time of construction. It aggregates these buildings into three classes according to the type of external wall construction — brick or large block, single-layer panel, and three-layer panel — and estimates overall annual energy use for space-heating via a steady-state model. It then compares predicted and measured energy use, for the aggregation and, more accurately, for a single building for which detailed energy-use data are available. In both cases there is a large discrepancy, with actual space-heating energy use exceeding design predictions by at least 60%. Analytical efforts to reconcile the excess energy consumption for the metered building strongly suggest that the most important cause of relatively high space-heating energy use in the building is poor control of heat delivery from the district heating system.     

杭州绿色公共建筑应用可再生能源方案比较

从可再生能源技术特点出发,结合公共建筑用能特征,分析了杭州地区绿色公建中采用太阳能热水、太阳能光伏和土壤源热泵系统三种可再生能源的可行性,为公共建筑可再生能源方案选择提供指导。