分户式燃气供暖与空气源热泵供暖经济性比较

以杭州市某住宅3种典型户型为研究对象,分析在不同阶梯气价下两种供暖系统的经济性。分户式燃气供暖系统的投资、投资净现值均低于空气源热泵系统,但运行及维修费用高很多。分析分户式燃气供暖系统推广的制约因素,对燃气供暖用气价格机制提出建议。     

2010年中国分户供暖创新产品与技术交流会召开

3月17日上午,由中国城市燃气学会应用专业委员会分户燃气供暖分会主办的2010年中国分户供暖创新产品与技术交流会如期举行。中国分户燃气供暖分会秘书长唐榕致辞,壁挂炉行业专家、企业人     

新住宅采暖新趋势

去年以来,我国北方个别城市中的住宅项目以双管采暖、户用燃气炉或户用式空调等可计量供暖方式代替了传统的单管集中供暖,使其住宅具备了超前品质。与目前的双管采暖、户用燃气炉供暖及户用式空调供暖相比较,电采暖无需依靠集中供热厂、占地少、十分清洁、无噪声且节能、维修量少,而这当中最具优势的是电采暖不产生任何污染。有人曾对民用燃气供暖系统作过调查,得出的结论是,燃气供暖将会不同程度地给城市造成环境污染,而这当中,分户独立式燃气采暖系统冬季平均每户每月用于炊事与生活热水的耗气量,将会比集中供暖增加10倍。从采暖的热能来…     

分户式燃气供暖中压进户方案

论述了分户式燃气供暖在南方城市应用的现状及存在的问题,提出了燃气中压进户的方案,分析了该方案的安全性和经济性.     

2010年中国分户燃气供暖分会工作会议在呼和浩特召开

2010年7月30日,中国分户燃气供暖分会工作会议在内蒙古呼和浩特召开。会议由中国分户燃气供暖分会秘书长唐榕主持。此次会议的目的是回顾分户燃气供暖分会2010年上半年的工作情况、新入会企业的会员资格审核以及相关行业的热点问题讨论。     

中国分户燃气供暖分会新增理事单位和会员单位8家

在中国分户燃气供暖分会2009年理事会上,中国分户燃气供暖分会会长王启、秘书长唐榕对2009年分户燃气供暖分会的工作及行业发展进行了总结与回顾,并宣布新增理事单位3家,其中包括主机厂家1家:广东万家乐燃气具有限公司;配件企业2家:西特(上海)贸     

燃气供暖系统综合经济分析

运用寿命周期费用分析法对三种燃气供暖方式的经济性进行了分析。结果表明：无论有无分户热计量，户用燃气锅炉供暖经济性都优于其他两种方式；各种燃气供暖方式的燃料费用占寿命周期费用的比重较大。     

中国分户燃气供暖网正式上线

3月16日,在第十届中国国际供热、通风及空调产品与技术博览会召开之际,也迎来了中国分户燃气供暖网的隆重上线仪式。中国分户燃气供暖网是由国家燃气用具质量监督检验中心主办,隶属于中国     

壁挂式燃气热水器供暖的应用

对区域燃煤、燃气供热锅炉房的经济性进行了比较,区域燃气供热锅炉房虽然具有清洁、环保等突出优点,但其经济性较差。论述了壁挂式燃气热水器作为热源的分户供暖的优势和存在的问题,分析了分户供暖的经济性。     

北京冬季住宅供暖热舒适与经济性研究

对集中供暖用户和分户燃气壁挂炉供暖用户进行了对比调查。结果表明,居民对住宅供暖热环境的需求差异较大。相对于集中供暖,分户供暖更能满足用户个性化需求,并充分调动用户行为调节的积极性。就供暖费而言,分户供暖用户的平均费用低于集中供暖用户。因此,分散式或末端可控的集中式系统更适合住宅供暖。     

北方既有住宅建筑采暖系统改造探讨

针对既有住宅建筑原采暖系统水力失调严重,用户不能分室控制室温及分户计量用热量而造成的采暖能耗大、热环境差的现状,选择合适的采暖系统改造方案,采取分户计量和温控等节能改造技术措施,以达到节约能源,改善居住热环境的目的。     

住区密度与家庭能耗碳排放相关性研究——以上海曹杨新村为例

住区空间形态及模式类型划分与密度特征相关,家庭能耗产生的空间碳排放与密度分布有着逻辑对应关系。国内外相关研究表明,家庭特征、住房特征和能耗行为等因素对家庭生活能耗有着显著的影响,而有关密度与家庭能耗碳排放之间的相关研究尚需更多实证案例。本文以上海曹杨新村作为研究对象,通过调研问卷数据来估算54个小区样本的家庭能耗人均碳排放值,并对住区密度指标与碳排放进行相关性研究。从回归分析结果看,曹杨新村的家庭能耗消费与家庭特征、住房特征等因素存在着显著的线性关系,且家庭人口规模具有主导作用。在密度指标与碳排放相关性研究中,家庭能耗碳排放在物质密度与人口密度指标中分别具有区段波动性特征,通过进一步分析密度与碳排放影响变量之间的非线性逻辑对应关系,研究得出不同密度区段条件下的住区家庭能耗碳排放差异是居民家庭人口规模、收入水平等相关社会因素叠合作用造成的。因此,判断住区是否"低碳"首先当明确密度区段的选择条件,结合本国国情、地区发展条件、家庭社会经济特征等因素来引导未来住区发展模式。     

户式燃气空调的热力学分析

运用热力学第一定律、第二定律和能级分析理论,对户式燃气空调各种工况下的一次能源利用系数、炯效率和能级差进行分析,并与几种常用的方式进行对比。评价了户式燃气空调用能的合理性,指出了应辩证地对待户式燃气空调的发展问题。     

Behavioural Patterns and User Profiles related to energy consumption for heating

The difference between the actual and predicted energy consumption for heating in housing is thought to be partly attributable to the use of HVAC systems. More reliable data on energy consumption could help in determining the actual energy performance of dwellings and in the search for the most adequate design for housing and home amenities. Further reductions on energy consumption might also be achieved if energy-saving policy programmes were geared to different household groups. The aim of this paper is to statistically determine Behavioural Patterns associated with the energy spent on heating and to identify household and building characteristics that could contribute to the development of energy-User Profiles. This study had two outcomes: it identified Behavioural Patterns to be used in energy calculations and it discerned User Profiles with different behaviours. Five underlying groups of behavioural variables were found, which were used to define the Behavioural Patterns and User Profiles. The groups showed statistically significant differences in the scores for most of the behavioural factors. This study established clear relationships between occupant behaviour and household characteristics. However, it seems difficult to establish relationships between energy consumption and Behavioural Patterns and household groups.     

Simulating space heating demand with respect to non-constant heat gains from household electricity

It is crucial to perform energy simulations during the building process to design a building that meets requirements regarding low energy use. In a low energy building, internal heat gains such as excess heat from household electricity are a large part of the heat balance of the building. The internal heat gains depend on the occupants and are not constant, although they are often assumed constant in simulations of space heating demand. This article analyses how different usage patterns of household electricity affects simulated space heating demand. Parametric studies of energy use-related parameters were done to study the influence from different designs. The results show that the different energy use patterns affect the space heating demand, especially in low energy buildings and during the colder parts of the year. To make accurate energy simulations of low energy buildings, household electricity use patterns should be taken into account.     

The impact of renewable energy on household electricity prices in liberalized electricity markets: A cross-national panel data analysis

The main research questions addressed in this paper are: first, have electricity market reforms achieved lower household electricity prices and, second, has the introduction of renewable energy increased household electricity prices in deregulated markets Answers to the questions were derived using static and dynamic panel data analysis from 1991 to 2014 employing explanatory variables such as the extent of electricity market reform and the share of generation from renewable energy resources. The dynamic model suggests that a lower household electricity price is associated with the degree of electricity market reform, while the share of renewable energy in electricity generation is not statistically significant.     

长沙市居住建筑能耗调查及偏相关分析

对长沙市70户具有代表性住户的居住建筑概况、生活方式、对热环境的评价及能耗情况进行了调查统计,采用SPSS统计分析软件对长沙市居住建筑能耗的影响因素进行了分析。长沙市居住建筑能耗具有明显的季节性,上一年12月至2月和6月至8月是能耗的高峰期。偏相关分析表明居住建筑总能耗、单位建筑面积能耗与家庭年收入、家庭常住人口密切相关,与建筑面积、建筑总层数、住户所在楼层、建筑朝向、供暖方式、空调方式不显著相关。     

Household-electric equipment diffusion and the impacts in the demand of residential electric energy in Brazil

The sizing and the distribution of the circuits, equipments of illumination and wall sockets of a household building are planned to offer a certain comfort to the users. The comfort is associated to a psychological state of welfare and depends on an ample amount of factors. The residences consume about 26% of the total electric energy in Sao Paulo State and the tasks aimed to the optimization of the energy use must consider the household use. Currently the Brazilian market of electric energy grows to a tax of 4.5% per year and during the last decades, the consumption of electrical energy presented superior tables of expansion to the gross domestic product (GDP). This growth showed up larger the household, commercial and agricultural consumers. The standards of comfort and performance change as the time goes by, with the incorporation of new technologies. The number of household appliances has been increased by the years, as well as the use of new equipments, demanding alterations in the electric projects to attend to this comfort of use.     

Household-electric equipment diffusion and the impacts in the demand of residential electric energy in Brazil

The sizing and the distribution of the circuits, equipments of illumination and wall sockets of a household building are planned to offer a certain comfort to the users. The comfort is associated to a psychological state of welfare and depends on an ample amount of factors. The residences consume about 26% of the total electric energy in Sao Paulo state and the tasks aimed to the optimization of the energy use must consider the household use. Currently, the Brazilian market of electric energy grows to a tax of 4.5% per year and during the last decades, the consumption of electrical energy presented superior tables of expansion to the gross domestic product (GDP). This growth showed up larger the household, commercial and agricultural consumers. The standards of comfort and performance change as the time goes by, with the incorporation of new technologies. The number of household appliances has been increased by the years, as well as the use of new equipments, demanding alterations in the electric projects to attend to this comfort of use.     

论住宅节能与分户热计量

重点阐述了住宅节能与分户热计量的必要性和重要性及其相互关系 ,并从分户热计量的由来、关键措施及温控等方面提出了今后应着重解决的几个问题。