燃气红外线辐射供暖在高大空间建筑物供暖中的应用

通过对高大空间供暖方式的技术分析,提出燃气辐射供暖是解决高大空间供暖的有效途径,并介绍了这种供暖方式的原理。     

地热供暖

<正>地热能供暖包括地热井供暖和地源热泵两种方式,无论是哪一种方式,都是利用中浅层的地热资源,为建筑物提供可以长期利用的热量或冷量。地热能供暖不会像化石能源那样带来碳排放导致的环境污染,也不会像一般的空气源热泵一样将多余的热量排出室外从而导致热岛效应,是十分清洁     

红外供暖应用

红外辐射采暖技术是被世界公认的堪称最为现代化的供暖方式，本文将于壁桂式建筑供暖辐射器的各自单独供暖及其联合配套供暖技术.进行介绍。     

浅谈供暖方式改革

我国北方地区，每到冬季，都需要供暖。现有的供暖方式，有热供暖和电供暖两种。这两种供暖方式，各有利蔽，都不是最好的，需要改革。改革的方向，是建立以化学发电为热源的发电供热循环系统，在家庭、楼群、居民小区或商业区，建立发电供热站。     

蒸汽供暖和热水供暖方案比较和应用

办公室和厂房供暖常采用蒸汽供暖或热水供暖。结合实际情况分析比较了两种供暖方式的优缺点。蒸汽供暖一次性投入较小，但使用维护费用较大；热水供暖和蒸汽供暖相比需增设一套热水循环装置、回水池和回水管路，但运行费用相对较少，且可最大程度地减少跑、冒、滴、漏现象的发生，从而可大大提高设备和材料的利用率，降低成本，最终起到节能降耗的作用，应广泛推广和应用。     

传统建筑供暖的变革新思路——电热膜供暖

介绍了北方地区锅炉供暖热水采暖系统,耗费大量钢材、煤炭、水等普遍存在着资源浪费、环境污染、供暖费难收缴等问题,针对以上问题,提出采用新的供暖方式,电热膜采暖技术,具有经济、节能、运行管理的可推广性。     

浅谈地板辐射供暖技术

地板辐射采暖是一种舒适、环保、节能的现代供暖方式。在诸多供暖技术中,地板辐射供暖技术无疑是热舒适度最好的一种供暖方式。在设计中,不但要对地面构造、热媒、热管系统及分集水器进行合理的设计,还要分别对负荷、散热量和热管水力进行系统的计算,同时加以正确的选材与施工才能充分发挥出地板辐射供暖的技术的优势。     

争议南方供暖

当前，南方是否供暖已基本达成共识，但在供暖方式上存在巨大分歧。企业抢滩南方市场后为何难以落地，又面临怎样的风险？     

间歇供暖与节能

<正> 我国采暖面积大,各地的气象条件、采暖习惯、资源状况不尽相同,因而,间歇供暖仍被有些地区采用,特别是在非最冷季节和采暖过渡地区,利用连续供暖设备进行间歇供暖,较多采用。间歇供暖大体可分为两种,一种是住宅式间歇供暖,这种供暖要求室温日平均值等于或接近室内计算温度,因此是不节能的。另一种是办公楼式间歇供暖,这种供暖方式因其室温日平均值低于计算温度,因而是可以节能的。比如,办公楼、公用建筑,夜间不     

地热供暖站标准现状分析

供暖是地热资源重要的直接利用方式之一,供暖站是地热间接式供热的重要环节,供暖站设计的科学、规范直接影响供暖的效果和经济性。通过对地热标准及供暖站标准国内外现状的分析,国内还没有以地热供暖站为主的综合性标准,而现在遵循的相关标准已不能适应当前的地热供暖发展模式,因此,制定以技术创新为主的地热供暖站是一项具有意义的工作。     

集中供热直供式热网存在的问题和建议

热电厂低真空运行直接向热网供热，效益最好，但随着热网负荷增大，会影响供热的稳定性。因此提出适时向间接供热的转换问题。     

Multiperiod heating storage control for distributed electric heating considering wind curtailment accommodation

Electric heating is perceived as an effective way to tackle heavy wind curtailment and severe smog in northern China, wherein distributed electric heating (DEH) accounts for a significant proportion. However, more research is required with regard to its thermal characteristic. This paper presents the multiperiod heating storage control for a DEH load to reduce wind curtailment. To cope with intermittent wind power, a novel multi-objective and layered optimization method is proposed by decomposing the integrated electricity and heating optimization problem into the electricity optimization subproblem and the heating optimization subproblem. Additionally, the influence of solar radiation on the thermal characteristic of the DEH load is considered in the building thermal process model when creating the day-ahead schedule of the DEH load control, and this is also regarded as the basis for grouping DEH users. Last, the simulation and economic feasibility analysis based on the data measured by the DEH system of Jilin Province, China, are carried out. The results show that this proposal can reduce the electricity cost for DEH users by 25%, and the critical feasible price for curtailed wind power is varying between 86.1 and 115.3 yuan/MWh according to different subsidy methods.     

节能环保新举措──浅谈小型凝汽式汽轮发电机组低真空供热

本文着重讨论了小型凝汽式汽轮发电机组低真空供热的几个问题。实践证明,利用小型发电厂低真空供热运行方式采暖,是一个节约用水、节约用电、节约用煤的节能环保新举措,具有很高的经济效益和环境效益。     

新时期江浙沪地区家庭采暖需求的初步分析

分析了江浙沪地区经济形势和气候特点,指出该地区冬季家庭住宅采暖市场已基本成熟,分户式采暖非常适合该地区的住宅采暖方式,家用锅炉产品正逐渐被市场认可,“家庭热水中心”的概念已经悄然兴起。     

Geothermal space heating

The use of geothermal resources for space heating dominates the direct use industry, with approximately 37% of all direct use development. Of this, 75% is provided by district heating systems. In fact, the earliest known commercial use of geothermal energy was in Chaudes-Aigues Cantal, France, where a district heating system was built in the 14th century. Today, geothermal district space heating projects can be found in 12 countries and provide some 44,772 TJ of energy yearly. Although temperatures in excess of 50 °C are generally required, resources as low as 40 °C can be used in certain circumstances, and, if geothermal heat pumps are included, space heating can be a viable alternative to other forms of heating at temperatures well below 10 °C.     

电锅炉用于供热系统的技术经济分析

通过能量利用及技术经济分析比较 ,认为目前在我国将电锅炉用于供热是不经济的。除一些特殊场合外 ,不宜大量采用     

A new method for optimum heating of steam boiler pressure components

A method for determining time‐optimum medium temperature changes is presented. The heating and cooling of the pressure elements will be conducted in such a way that the circumferential stresses caused by pressure and fluid temperature variations at the edge of the opening and point of stress concentration do not exceed the allowable values. However, the calculated optimum temperature changes are difficult to follow in practice during the initial stage of heating. Nevertheless, it is possible to increase the fluid temperature stepwise to the minimum value and then heat the pressure component according to the determined optimum temperature changes. Allowing stepwise fluid temperature increase at the beginning of heating ensures that the heating time of a thick‐walled component is shorter than the heating time resulting from the calculations according to EN 12952‐3 European Standard or TRD 301 (Technische Regeln für Dampfkessel) regulations. Copyright © 2010 John Wiley & Sons, Ltd.     

原有多层住宅分户采暖改造问题探讨

城市住宅分户供暖 ,不仅要满足采暖用户的舒适度要求 ,而且要解决采暖费收取困难问题 ,更重要的是合理利用能源 ,以达到节能的目的。通过调查改后的用户 ,发现若干问题 ,提出改进方法 ,为以后的设计和改造提供借鉴     

A thermal analysis of a radiant floor heating system using SERI‐RES

Both intermittent and continuous heating are widely used for radiant floor heating systems in Korea, Intermittent heating circulates hot water according to a predefined schedule while the continuous heating controls water flow using thermostat control units. The standard version of SERI‐RES has been modified for the numerical simulation of the problem. Results show relatively large temperature swings in the case of intermittent heating with solar availability, although it costs less to implement due to its simplicity in design. On the other hand, the case of continuous heating would avoid such undesirable temperature fluctuations. These results are also verified by experimental evaluations. Copyright © 1999 John Wiley & Sons, Ltd.     

欧洲采暖热计量述评

本文从供暖热计量的供热收费法规,热费收缴机构和服务体系,热费分摊的方法,热费收缴信息传输管理系统四个方面介绍了欧洲的供暖热计量情况,这些成功经验对我国供暖收费制度的改革有很大的参考价值。