建筑设计中可再生能源的利用

随着我国经济的发展和社会的进步,能源危机不断加重,因此,迫切需要在建筑设计中推广可再生能源.可再生能源是可以永续利用的能源资源,如水能、风能、太阳能、生物质能和海洋能等,不存在资源枯竭问题.中国除了水能的可开发装机容量和年发电量均居世界首位之外,太阳能、风能和生物质能等各种可再生能源资源也都非常丰富.本文以某地建筑为例探讨了太阳能光电技术、太阳能光热技术、地源热泵技术在建筑设计中的应用.     

全国政协委员、全国政协人口资源环境委员会副主任温克刚:开发利用新能源和可再生能源

国内外的许多科学家预言,随着化石能源时代的终结和新明的到来,不用百年,太阳能、风能等可再生的清洁能源将成为全世界的一种重要能源。欧盟已经制定了能源结构调整计划,到2010年其风能,太阳能等可再生能源的比重将从现在的6％提高到12％,风力发电将达到总发电量的22％。     

能源结构调整刺激太阳能风能产业升级

<正>一方面是确保中国的经济高速增长;另一方面也要面对全球能源紧缺。这样的背景下,环境能源的开发、应用显得尤为重要。现在技术方面较为成熟的环境能源品种有核能、太阳能和风能。特别在太阳能和风能领域,在产业链的上下游均出现了一些较为优秀的上市公司,如无锡尚德、江西赛维、天威保变、金风科技、东方电气等。从未来全球能源结构调整情况看,在3～5年的短周期内,风能发展将快于太阳能,而推移至更长的时间周期中,太阳能无疑将具有更大的优势。     

太阳能发电价格瓶颈剖析

我们知道,太阳能作为一种可再生能源,与风能、潮汐能等各类可再生能源相比,无论从资源的数量、分布的普遍性,还是从清洁性以及技术的可靠性,太阳能都更具有优越性。目前,人类对太阳能的利用主要有两大方向,一是把太阳能转化为热能,二是将太阳能转化为电能（即通常所说的太阳能发电）,其中重点是后者——因为太阳能发电可以为人类解决目前及今后的能源短缺问题。     

自然的馈赠,人类智慧的结晶——风光互补发电系统

太阳能和风能是大自然馈赠给我们的两种最重要的天然能源,也是取之不尽的可再生能源。风光互补发电是一种将太阳能和风能转化为电能的装置。其优点是无空气污染、无噪音、不产生废弃物。     

简讯

随着国际能源资源的日益紧张和我国节能工作的不断深入，新型能源及再生能源的利用已经成为我国的基本国策。作为欧洲首屈一指的太阳能企业和生物能、风能等可再生能源利用设备的供应商——康能公司正式入户中国上海。     

我国可再生能源建筑应用发展现状

积极开发可再生能源建筑是降低建筑能耗的有效途径.将太阳能、地热能、风能、生物质能等可再生能源充分合理地应用到建筑中去,特别是实现太阳能建筑一体化,对缓解现今能源紧张、环境污染问题具有重大的现实意义.     

探讨可再生能源在公共建筑中的应用

以深圳前海蛇口自贸区中国零碳生活馆方案为例,从太阳能和风能两方面,探讨了可再生能源的应用在公共建筑中的节能效应,指出可再生能源的利用是公共建筑节能措施中最直接有效的一种方式。     

可再生能源"物美价廉"需科技创新

胡锦涛总书记最近在一份《关于大力支持我国太阳能自主创新关键技术的建议》报告上做出重要批示:“太阳能是重要的可再生能源之一。推进科技创新,解决太阳能发电高成本问题是大规模开发利用太阳能的关键。”胡总书记深刻而又精辟地指出了我国可再生能源发展的关键,不仅仅是针对太阳能而言,也同样适用于风能、生物质能等其它可再生能源。     

低碳生态之路——广西建筑节能向更高目标进发

可再生能源作为一种可以在自然界中不断再生、永续利用的能源,有着取之不尽、用之不竭的特点,主要包括太阳能、风能、水能、生物质能、地热能和海洋能等。受地域环境、经济效益和科技水平等诸多条件的限制,国家支持可再生能源建筑应用示范城市建设主要集中在太阳能光伏、太阳能光热以及浅层地热能的利用方面。广西作为太阳能和浅层地热能较为丰富的地区,经过数年的努力,     

太阳能利用及太阳能与风力发电联合供热系统

为了利用太阳能与风能解决建筑能源供应问题,实现建筑节能和环境保护,提出综合利用太阳能与风能的供热系统——太阳能与风力发电联合供热系统。探讨了太阳能热利用装置及其局限性,研究了太阳能与风力发电联合供热系统的流程及其优势。     

包头市垃圾填埋场节能方案分析

分析包头市垃圾填埋场节能方案,研究新能源新技术在节能方案中的运用,探讨太阳能、风能的技术特点、应用条件,以及本项目的实际条件,在经济、适用的前提下,充分考虑节能减排、环保和可持续发展,确定了太阳能、风能在本项目中的应用方案。     

Optimisation of solar and wind energy systems: a survey

In the last decade, the penetration of renewable energy sources (RESs) for energy generation has increased. Because of their several technical and environmental benefits, solar and wind energy systems are the major RESs that are being increasingly employed for different aims. In solar and wind energy systems, there are a variety of optimisation problems which are non-linear and non-convex in nature. Study of the literature shows that among the meta-heuristic techniques, genetic algorithm (GA) and particle swarm optimisation (PSO) are highly used to solve different optimisation problems of solar and wind energy systems. The main goal of this paper is to review different applications of GA and PSO in solar and wind energy systems. This review will enable the researchers to study the present status of different solar and wind optimisation problems and plan for future investigations.     

Potential for a Danish power system using wind energy generators,solar cells and storage

Some overall properties of a power system in a northern climate based mainly upon renewable energy are studied.

The power system consists of wind energy generators and solar cells in combination with a storage system and a back-up system. The type of power plants constituting the back-up system are not specified. The back-up system could be used to generate power only when the rest of the system is unable to cover the load. The predicted performance of the solar/wind power system is calculated on the basis of hourly meteorological data measured in Denmark during the years 1959 to 1972.

It has been established from this data that to maximise the fraction of annual load covered by solar and wind energy the ratio of solar to wind production capacity is approximately 40% solar to 60% wind. With only small changes in the energy provision, however, the ratio could be varied between 20:80 and 60:40.

The saving in energy resulting from provision of various storage capacities has been studied. This saving will be negligible if less than half of the annual load is covered by the solar/wind power system. For a solar/wind power system with a production capacity of 1.25 times the annual load the marginal energy saving effect of a storage system is reduced by a factor of 10 when the storage capacity is increased from 0 to 24 hours. The marginal costs of producing the electricity rise steeply when more than about 80–90% of the load is to be covered on the basis of renewable energy. Finally it is shown that when 80% of the load is covered by renewable energy the storage capacity should not exceed 40 hours.     

风、光、柴电互补型通信基站塔桅结构的实践

将10kW级风力发电机安装在通信塔顶部,首次实现了通信塔与风力发电塔统一于一体,同时利用风能、太阳能为主要供给能源,利用柴油发电为辅助能源,有效地解决了边远地区通信基站供电问题,充分利用了清洁能源,节能环保.     

平板分体式太阳能在工程中的应用

平板分体式太阳能与曼宁家斜屋面一体化施工,使太阳能与斜屋面融为一体,实现了太阳能与建筑载体的结合。在提高了太阳能的抗风压、抗风揭和避雷性能的同时,降低了成本,改变了太阳能的工作环境,提高了太阳能的得热率。     

生态住宅中的太阳能利用

从太阳能通风结构、太阳能热水系统、太阳能采暖系统和太阳能空调系统四方面介绍了生态建筑的太阳能利用技术，阐述了太阳能热水板和太阳能光伏发电在生态住宅中的应用，体现了生态建筑以人为本的设计理念，从而营造健康、舒适的室内环境。     

太阳能风能综合发电系统在高速公路中的应用

指出太阳能风能以其可再生、储量丰富、分布广泛、环保清洁等优势,成为人们在传统石油能源之外的一个新选择,在分析太阳能风能原理的基础上,探讨了太阳能风能在高速公路机电系统中的应用及其前景和限制,并以工程实例进行了分析。     

Way forward in meeting energy challenges in Pakistan

In this review the energy potential of Pakistan from hydro, coal, wind, solar and nuclear sources has been discussed. The new projects that are being commissioned on coal, wind, solar, hydel and nuclear-based technologies have also been mentioned. The review has also explored the future prospects of the country’s energy requirements. Pakistan has potential to produce 100,000?MW of electricity from Thar coal for 20 years, 56,000?MW of hydroelectricity, 150,000?MW of wind energy and ～50,000?MW from solar sources. The coal-fired power generation is expected to 11,500?MW in period 2017–2019. The country is moving in the right direction to cater its energy needs. However, there is a need to find local and foreign investment in the country to meet high energy demands in the country in future.     

Structural stability of concrete wind turbines and solar chimney towers exposed to dynamic wind action

Apart from burning classical fossil resources or generating nuclear power, alternatives have been developed, like the classical ways to capture energy from wind, water and sun, or the innovative solar chimney concept.The paper presents some structural aspects of classical wind energy turbines, like their high-cycle dynamic loading and reaction as well as their fatigue behaviour. Actual research results concerning pre-stressed concrete tower constructions for wind turbines will be focused on. For the solar chimney concept the structural challenges concerning wind action, eigenfrequencies, stiffening and shape optimization with special focus on the inlet guide vanes will be discussed. Both classical wind turbines and the innovative solar chimney concept may successfully contribute to the future energy supply in Southern Africa.