清洁能源 承担保护生态环境重任——大唐苏州热电有限公司开展生态文明建设工作纪实

大唐苏州热电有限公司是由中国大唐集团公司调整能源结构、发展清洁能源战略而诞生的集团公司在江苏第一个自建燃机项目。该项目利用"西气东输"的天然气作为燃料,一期工程静态总投资约12.6亿人民币,规划建设两台E级燃气—蒸汽联合循环热电联产机组,同时留有扩建二期的余地。两套机组已分别于2013年3月和2013年5月投入运行,极大的提高了对开发区的供热能力,实现了节能减排。     

余热锅炉在绿色油田建设中的应用

余热锅炉的运用使得不同品级的能源可以得到充分合理的利用。中国石油塔里木油田公司在生产实践中,采用燃气发电机组—余热锅炉联合循环技术,用不能再发电的燃气尾气生产蒸汽,对天然气中蕴含的能量进行分级利用,实现了发电、供热双重效益,也降低了对周边环境的热污染。文章对该热电联合循环的工艺流程进行介绍,通过对燃气发电机组尾气的能量传递进行计算,用热力学原理进行分析,以期实现对使用余热锅炉后的热电联产经济性进行综合评价的目的。     

努力创建节能环保花园式企业——国电吉林江南热电有限公司节能减排工作纪实

国电吉林江南热电有限公司成立于2008年9月,规划建设了4台30万千瓦等级热电联产机组,一期工程建设了2台33万千瓦热电联产机组,由东北区域大型综合性电力集团——国电东北电力有限公司独资建设,可承担吉林市南部地区1060万平方米采暖热负荷及160t/h工业负荷,项目极大改善了吉林市南部地区的生态环境和供热质量,并为长吉图开发建设、招商引资提供必备的生产和生活条件。     

推进生态文明 共建美丽中国——国电吉林江南热电有限公司践行生态文明纪实

国电吉林江南热电有限公司成立于2008年9月,位于吉林市丰满区松花江畔,规划建设4台30万千瓦等级热电联产机组,一期工程建设2台33万千瓦热电联产机组,由东北区域大型综合性电力集团——国电东北电力有限公司独资建设,可承担吉林市南部地区1060万平方米采暖热负荷及160t/h工业负荷,项目极大改善了吉林市南部地区的生态环境和供热质量,并为长吉图开发建设、招商引资提供必备的生产和生活条件。     

火电企业排污权交易遭禁脱硫脱硝市场步人快速发展期

近日国务院办公厅公布《关于进一步推进排污权有偿使用和交易试点工作的指导意见》,其中提及火电企业（包括其他行业自备电厂,不合热电联产机组供热部分）原则上不得与其他行业企业进行涉及大气污染物的排污权交易。环境质量未达到要求的地区不得进行增加本地区污染物总量的排污权交易。     

宝钢专烧高炉煤气的燃气、蒸汽联合循环机组——节能减污效果明显

宝钢在日本川崎重工业和瑞士ＡＢＢ共同协作下 ,于１９９７年１１月建成投运的专烧高炉煤气的１５万千瓦燃气蒸汽联合循环发电供热机组（简称ＣＣＰＰ）运行良好 ,使宝钢的高炉煤气放散率由１９９７年的１３ ４７ %下降到１９９８年的５ ４７ %和１９９９年１—１１月的１ ４７ % ,将来有可能降到１ %以下 ,发挥了巨大的节能、环保效果。宝钢专烧高炉煤气的燃气、蒸汽联合循环机组——节能减污效果明显     

以节能促增效 以环保促发展——国电内蒙古东胜热电有限公司节能减排侧记

国电内蒙古东胜热电有限公司位于鄂尔多斯市东胜区,现有两台330MW空冷供热机组,担负着向蒙西电网发电、向东胜区供热的任务。公司始终以建设安全、经济、环保、高效的一流综合利用型发电企业为目标。公司先后投人2800万元进行了#1、#2炉四台吸风机和两台热网循环泵高压变频器改造、热网循环泵高压变频器改造,厂用电率降低了0.75%,年节约电费550万元;进行了#2锅炉低NOx燃烧器改造,锅炉     

多管齐下,推进企业节能减排——玲珑集团有限公司节能减排工作侧记

玲珑集团是一家以轮胎为主业,主辅并举、多元发展的集团化公司,涵盖轮胎制造、机电加工、化工原料、建筑建材、热电联产等八大行业领域,下属企业20多家,总资产100多亿元,是中国大型企业500强、中国制造业500强企业。公司以轮胎主业为核心,园区为平台,发展低碳经济,倡导绿色制造,先后投资60多亿元建设了热电联产、炭黑、钢丝、水泥、粉煤灰砖等项目,形成了以能源为保障、原材料生产为辅助、轮胎生产为核心的循环经济产业链,不仅实现了工业三废的资源化和再利用,而且对水、汽、热等资源和能源进行了高效的综合利用。     

“五位一体”理念赋能减污降碳——深圳低碳型生活垃圾焚烧产业园区建设模式

为了解决传统垃圾焚烧行业依靠规模扩张、管理粗放、运行效率低、邻避效应突出而引发的发展瓶颈,深圳能源环保股份有限公司（简称深能环保）通过集合“清洁高效、精准管控、数智融合、低碳循环、共建共享”,创新性地提出了“五位一体”垃圾焚烧智慧低碳发展新模式。该模式为推动新时代我国垃圾焚烧行业绿色、低碳、智慧、可持续发展提供了全新的思路,具有重要借鉴意义。     

国内资讯

建设全国碳交易市场中欧碳排放交易高层论坛近日在北京召开。会议透露,我国将在2016年启动全国碳市场。全国碳交易市场初步将纳入5+1个行业(电力、冶金、有色、建材、化工和航空服务业)的年排放量在2.6万吨以上的企业,碳排放交易量可能涉及30亿~40亿吨。全国碳市场建设可分为3个阶段。其中,2014年~2016年为前期准备阶段,2016年~2019年是正式启动阶段。     

碳税政策对我国电力系统碳减排的影响分析

碳税通常被认为是成本有效的碳减排政策工具。本文利用综合资源规划评价模型,对我国电力系统在碳税征收情景下的碳减排影响进行了分析。研究显示,碳税政策不仅实现了二氧化碳排放量减少的政策目标,同时还促进了电力系统技术和燃料结构的低碳化发展。     

电力行业的节能减排与低碳经济

中国能源结构以煤为主,火电行业是碳排放量的主体,面对低碳经济的发展模式,电力行业势必将成为CO2减排的主力军。目前,火电行业通过"上大压小"政策,实现结构减排;通过提高电力工业的烟气脱硫,实现工程减排;通过扩大清洁能源的比例,减少煤炭消耗总量,实现总量减排。使用清洁能源是实现碳减排的有效途径。指出了电力行业"节能减排"的现状和措施,分析了电力行业在"低碳经济"中所面临的新形势,并对低碳电力技术的研究与运用进行了展望,阐述了通过利用清洁能源促进碳减排的迫切性和必要性。     

Economic dispatch of power system containing wind power and photovoltaic considering carbon trading and spare capacity variation

The drying up of the fossil energy sources and the damage from unchecked carbon emissions demand the development of low carbon economy, which promotes the development of new energy sources, such as wind power and photovoltaic. However, the direct connections of wind/photovoltaic power into power grid bring great impacts on power systems, thus affecting the security and stability of power system operations, which challenges the power system dispatching. In despite of many methods for power system dispatch, lack of the models, for power system containing wind power and photovoltaic considering carbon trading and spare capacity variation (PSCWPCCTSCV), restricts the further optimal operations of power systems. This paper studies the economic dispatch modeling problem of power system containing wind power and photovoltaic, establishes the model of economic dispatch of PSCWPCCTSCV. On this basis, adaptive immune genetic algorithm is applied to conduct the economic operation optimization, which can provide the optimal carbon trading price and the optimal power distribution coefficient. Finally, simulations based on the newly proposed models are made to illustrate the economic dispatch of PSCWPCCTSCV. The results show that optimization with the proposed model can not only weaken the volatility of the new energy effectively, but also reduce carbon emissions and reduce power generation costs.     

Cogeneration potential in Indian sugar mills: a case study

The Indian sugar industry has massive potential for the cogeneration of electrical power. The sugar manufacturing process generates bagasse as a byproduct from cane-crushing. This bagasse can be used as a fuel for the boilers employed in steam raising for the process use and cogeneration. In this study, the potential for power cogeneration in a typical plant under the existing boiler-turbine configuration has been estimated. An alternative configuration requiring capital investment in machinery has also been studied. The cost of cogenerating power, including the cost of fuel, operations and capital services wherever necessary, has been calculated for both these cases, using a linear optimisation method. The exercise allows for the use of multiple fuels, namely bagasse and coal, for cogeneration throughout the year including the cane-crushing season and the off-season. The per unit supply price of cogenerated power thus computed has been compared with the utility's own cost with a view to selling the surplus cogenerated power to the grid.     

Photovoltaic-thermal (PV/t) panel to minimize electrical and air conditioning energy consumption of a typical office in Beirut

A combined photovoltaic–thermal (PV/t) panel is proposed to produce simultaneously electricity and heat from one integrated unit. The unit utilizes effectively the solar energy through achieving higher PV electrical efficiency and using the thermal energy for heating applications. To predict the performance of the PV/t at a given environmental conditions, a transient mathematical model was developed. The model was integrated in a heating application for a typical office space in the city of Beirut to provide the office needs for electricity, heating during winter season, and dehumidification and evaporative cooling during the summer season. To minimize the yearly office energy (electrical and heat) needs, the PV/t panel cooling air flow rate and the dehumidification regeneration temperature were determined for opimal unit operation. Thermal energy savings of up to 85% in winter and 71% in summer were achived compared to conventional systems at a payback period of 8 years for the panels.     

碳中和愿景下中国电力部门的生物质能源技术部署战略研究

2020年9月22日,习近平主席在第七十五届联合国大会上郑重承诺,中国将提高自主贡献力度,采取更加有力的政策和措施,努力争取2060年前实现碳中和。电力部门是我国能源系统实现碳中和的关键,而生物质能源技术在电力部门的部署对于推动实现碳中和具有不可替代的重要意义。本文针对三类生物质能源的发电技术,包括生物质直燃/气化发电、生物质耦合发电、生物质与碳捕获封存技术联合发电,分析了技术的国内外发展现状,并从技术可行性、资源可行性、经济可行性和环境影响等方面评析了其在推动电力部门低碳转型过程中的可行性。同时,结合碳中和愿景下电力部门的减排要求及对相关技术潜力的最新研判,对生物质能源技术在我国电力部门的部署提出了相应的政策建议。     

Development of a PEMFC-based heat and power cogeneration system

Hydrogen-fed proton exchange membrane fuel cell (PEMFC) has to overcome high installation and operation cost before being adopted as a distributed power candidate. Cogeneration of power and heat is a good approach to increase hydrogen energy utilization rate. A PEMFC-based power and heat cogeneration system is proposed and established in the current study to investigate system’s technological and economical feasibility. This cogeneration of heat and power (CHP) system composes of a 2.5-kW fuel cell stack, hydrogen supply system, air supply system, water and heat management system, and heat recovery system. The control strategies to automate the system operation are realized by a programmable automation controller (PAC) system. Detailed measurement of the system is also constructed along with a web-based human–machine interface (HMI) platform to facilitate experiments and demonstration. Preliminary testing of the CHP system shows good performance of heat and power outputs. System’s electrical power conversion efficiency and thermal efficiency of the CHP system are measured at 38% and 35%, respectively. System combined efficiency therefore reached about 73%.     

碳排放权配额管理体系的比较和借鉴

在地方性试点的基础上,我国已在电力行业启动全国性碳排放权交易市场建设。配额管理不仅直接影响参与者的经济利益,还决定着碳排放权交易机制能否成功建立和持续运行。从配额总量设定、地区和企业层面的配额分配、配额的调控和灵活管理机制等角度总结比较了各国碳排放权配额管理制度设计的经验教训,并从五个方面提出了对我国全国性碳交易市场建设的启示。     

简述排污许可制下火电行业现状及发展

实施排污许可制度,是强化排污者责任、提高固定污染源环境管理效能、改善环境质量的重要制度保障。火电行业作为典型的高架固定源,先行试点实施排污许可制度。通过分析火电行业发展和环保现状,结合排污许可管理要点,简述排污许可制对火电行业发展的影响。     

Anticipating public attitudes toward underground CO2 storage

Carbon capture and storage (CCS) may play a central role in managing carbon emissions from the power sector and industry, but public support for the technology is unclear. To address this knowledge gap, and to test the use of discrete choice analysis for determining public attitudes, two focus groups and a national survey were conducted in Canada to investigate the public's perceptions of the benefits and risks of CCS, the likely determinants of public opinion, and overall support for the use of CCS.The results showed slight support for CCS development in Canada, and a belief that CCS is less risky than normal oil and gas industry operations, nuclear power, or coal-burning power plants. A majority of respondents indicate that they would support the use of CCS as part of a greenhouse gas reduction strategy, although it would likely have to be used in combination with energy efficiency and alternative energy technologies in order to retain public support.