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Performance analysis of a solar-aided power generation(SAPG) plant using specific consumption theory

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Science China(Technological Sciences) 2016年第2期59卷 322-329页

作者： hou hongjuan WANG MengJiao YANG YongPing CHEN Si HU Eric National Thermal Power Engineering and Technology Research Center North China Electric Power University University of Kentucky Power and Energy Institute of Kentucky School of Mechanical Engineering University of Adelaide

In contrast to a traditional coal-fired power generation plant where steam extracted from a turbine is used to preheat the feedwater in all preheating stages, a solar-aided power generation(SAPG) plant uses solar heat to replace a part or all of the extracted steam in one or more preheating stages. The performance of an SAPG plant with different replacements is investigated in this study by using specific consumption theory(SCT). Fuel-specific and cost-specific consumption models for SAPG plants are built based on the SCT. A typical 330 MW coal-fired power plant is used as the study case. The performance of the SAPG plant in terms of specific consumption, with steam obtained from the first through the eighth(except for the fourth) stages of extraction replaced by solar heat, is compared with that of the reference coal-fired power plant. The fuel-specific consumption of the SAPG plant is determined to be lower than that of the reference coal-fired power plant. The fuel-specific consumption accrual distribution in SAPG plants is used to assess the effect of each individual replacement. Effective strategies to reduce the specific costs of the SAPG and coal-fired power plants are proposed based on the results of this study.

关键词： solar-aided power generation specific consumption theory fuel-specific consumption cost-specific consumption

Evaluation of solar aided biomass power generation systems with parabolic trough field

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Science China(Technological Sciences) 2011年第6期54卷 1455-1461页

作者： hou hongjuan YANG YongPing HU Eric SONG JiFeng DONG ChangQing MAO Jian Beijing Key Laboratory of Safe and Clean Energy Technology North China Electric Power University Beijing 102206 China National Engineering Laboratory for Biomass Power Generation Equipment North China Electric Power University Beijing 102206 China School of Mechanical Engineering The University of Adelaide SA 5005 Australia

Solar and biomass are both renewable energy *** biomass as fuel is becoming more and more attractive after governments increase the tariff for the electricity from the renewable *** the costs of power from a biomass power generation plant depend greatly on the availability and quality of the biomass *** commercialization of solar alone thermal power generation is hindered by its high initial investment and low thermal *** this paper,a concept of integrating solar into a biomass power generation system is put *** the system the oil heated by a parabolic trough solar field is used to replace the extraction steam to preheat the feed water(entering a biomass boiler) and the previous extraction steam thus saved can continue to do work in the lower stages of *** performance of the hybrid system with different replacements is analyzed and compared through two typical solar aided biomass generating *** results show that the integration not only reduces the consumption of biomass fuel(at the same generation capacity) but is also proved to be an efficient way to convert solar thermal energy into *** results also show that with the same solar aperture area,the higher the grade of the replaced extraction steam,the better the thermal performance and economy.

关键词： solar thermal power biomass power aided

Research on solar aided coal-fired power generation system and performance analysis

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Science China(Technological Sciences) 2008年第8期51卷 1211-1221页

作者： YANG YongPing CUI YingHong hou hongjuan GUO XiYan YANG ZhiPing WANG NinLing Beijing Key Laboratory of Safe and Clean Energy Technology North China Electric Power UniversityBeijing 100026China

Integrating solar power utilization systems with coal-fired power units, the solar aided coal-fired power generation (SACPG) shows a significant prospect for the large-scale utilization of solar energy and energy saving of thermal power units. The methods and mechanism of system integration were studied. The parabolic trough solar collectors were used to collect solar energy and the integration scheme of SACPG system was determined considering the matching of working fluid flows and energy flows. The thermodynamic characteristics of solar thermal power generation and their effects on the performance of thermal power units were studied, and based on this the integration and optimization model of system structure and parameters were built up. The integration rules and coupling mecha- nism of SACPG systems were summarized in accordance with simulation results. The economic analysis of this SACPG system showed that the solar LEC of a typical SACPG system, considering CO2 avoidance, is 0.098 $/kW·h, lower than that of SEGS, 0.14 $/kW·h.

关键词： solar thermal power generation coal-fired power plant system integration performance analysis

The influence of nitrified supernate’s recycle ratio on the removal of coking wastewater

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Baosteel Technical Research 2009年第1期3卷 60-63页

作者： hou hongjuan DONG Xiaodan SHAO Lixian Environment ＆ Resources Division Baosteel Research Institute Baoshan Iron ＆ Steel Co. Ltd. Shanghai 201900 China Sustainable Development Research Division Economics ＆ Management Research Institute Baosteel Group Corporation Shanghai 200122 China Chemical Engineering Company Baosban Iron ＆ Steel Co. Ltd. Shanghai 201900 China

The influence of the recycle ratio on the removal of coking wastewater has been researched using the anaerobicanoxic-aerobic （A/A/O） biofilm process. The research indicates that the concentrations of chemical oxygen demand （COD） and NO3 -N in the water are the lowest when the recycle ratio is 3：1 ,but the removal efficiency of total cyanide （TCN） is the highest when the recycle ratio is 1： 1. The removal efficiency of NH4^＋ -N is more than 99% at all three different recycle ratios. Compared with Grade A of the National Discharge Standard （GB 8978--1996）, the effluent NH4 -N is standard,but COD and TCN can not meet the requirements and further treatment processes are needed.

关键词： coking wastewater treatment recycle ratio A/A/O biofilm

Treatment of the wastewater from the sintering flue gas desulfurization process

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Baosteel Technical Research 2013年第4期7卷 29-32页

作者： hou hongjuan LI Enchao YIN Tingting Energy &Environment Division Research InstituteBaoshan Iron & Steel Co.Ltd.

The limestone-gypsum flue gas desulfurization （FGD） process has become the most widespread process in the world for sulfur removal. The swirl-jet-absorbing wet limestone-gypsum sintering FGD technology was developed for sintering flue gas desulfurization,and this process produces volumes of wastewater with various contaminants that requires treatment before disposal or reuse. In this study, the wastewater quality from three different sintering FGD systems at Baosteel Group was investigated and compared with wastewater from power plant FGD. A treatment process was proposed which is suitable for sintering FGD wastewater. After treatment with a neutralization, coagulation and sedimentation process, heavy metals in the sintering FGD wastewater were reduced to a level meeting the relevant emission standards ,but the pH and ammonia concentration were too high, and a further treatment process was needed. Due to certain similarities and complementarities between sintering FGD wastewater and coking wastewater, it is entirely feasible to mix the pretreated sintering FGD wastewater into a biological coking wastewater treatment system. This study indicates that it is entirely feasible to mix pretreated sintering FGD wastewater into the biological treatment systems used for coking wastewater from the iron and steel industries.

关键词： sintering FGD desulfurization wastewater coking wastewater biological treatment

含蓄热的太阳能辅助供热机组供暖期调峰性能分析

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太阳能学报 2018年第7期39卷 1807-1814页

作者：侯宏娟郑天帅华北电力大学国家火力发电工程技术研究中心

基于热力学第一定律和质量守恒定律,提出含蓄热的槽式太阳能辅助供热机组集成方案,制定蓄热系统的运行策略,分析机组调峰能力,并且在此基础上,以某330MW供热机组为例进行算例分析。结果表明：配置太阳能蓄热可显著增强中国北方地区供热... 详细信息

基于热力学第一定律和质量守恒定律,提出含蓄热的槽式太阳能辅助供热机组集成方案,制定蓄热系统的运行策略,分析机组调峰能力,并且在此基础上,以某330MW供热机组为例进行算例分析。结果表明：配置太阳能蓄热可显著增强中国北方地区供热机组的调峰能力,根据算例分析,夜间低谷时段调峰容量得到极大增加,特别是下调峰能力提高较大,从而有效降低机组的最小电出力;通过引入蓄热系统,不但可增强机组下调峰能力,而且能降低太阳能的间歇性对系统造成的扰动,是一种有效的太阳能利用方式。

关键词：太阳能蓄热供热机组调峰

两种典型集成方式下太阳能辅助燃煤机组发电系统热性能对比分析

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太阳能学报 2018年第4期39卷 925-932页

作者：侯宏娟梁明宇黄畅华北电力大学国家火力发电工程技术研究中心

基于热力学第一定律和质量守恒定律,建立槽式太阳能辅助燃煤发电系统模型。并针对槽式太阳能辅助燃煤机组回热系统最常见的两种集成方式,以槽式太阳能辅助某330 MW亚临界燃煤机组为研究对象,基于典型年气象数据及原燃煤机组年实际负荷,... 详细信息

基于热力学第一定律和质量守恒定律,建立槽式太阳能辅助燃煤发电系统模型。并针对槽式太阳能辅助燃煤机组回热系统最常见的两种集成方式,以槽式太阳能辅助某330 MW亚临界燃煤机组为研究对象,基于典型年气象数据及原燃煤机组年实际负荷,对这两种集成互补方案进行分析比较,并在此基础上,定量分析蓄热对互补发电系统年性能的影响。结果表明：串联集成方式在运行调节及系统控制方面更易实施,但并联集成互补系统具有更好的热经济性;此外,蓄热能大幅减小太阳能间歇性造成的集热子系统输出波动,且对于有条件设置较大集热面积的互补系统,加入蓄热可使其获得更好的经济性。

关键词：太阳能燃煤电站系统集成蓄热年性能

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基于钻石模型的卷烟商业物流竞争力研究

物流技术 2014年第3期33卷 53-55页

作者：侯红娟河北省烟草公司唐山市公司物流中心河北唐山063000

以波特的"钻石模型"为基础,从要素状况、需求状况、支持性产业和相关产业、企业的战略结构和竞争、面临的机遇以及政府所发挥的作用等方面对卷烟商业物流产业竞争力进行分析,明确目前的竞争态势,发现存在的问题,并提出提升其产业竞争力... 详细信息

以波特的"钻石模型"为基础,从要素状况、需求状况、支持性产业和相关产业、企业的战略结构和竞争、面临的机遇以及政府所发挥的作用等方面对卷烟商业物流产业竞争力进行分析,明确目前的竞争态势,发现存在的问题,并提出提升其产业竞争力的对策。

关键词：竞争力钻石模型卷烟商业物流

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槽式太阳集热器传热与流动性能研究

太阳能学报 2014年第5期35卷 768-772页

作者：侯宏娟周传文杨勇平华北电力大学新能源电力系统国家重点实验室北京102206 湖南省电力勘测设计院长沙410007

以槽式太阳集热器为研究对象,建立集热器的传热流动数学模型,通过Fluent模拟,研究其传热、流动性能,并对模拟结果进行实验对比验证,对比结果表明二者吻合较好。在此基础上,分析太阳直射辐射(DNI)、集热器入口流体温度及流速对集热器集... 详细信息

以槽式太阳集热器为研究对象,建立集热器的传热流动数学模型,通过Fluent模拟,研究其传热、流动性能,并对模拟结果进行实验对比验证,对比结果表明二者吻合较好。在此基础上,分析太阳直射辐射(DNI)、集热器入口流体温度及流速对集热器集热效率、流体温升及压损的影响规律,并对流经集热器传热流体的流速进行优化,从而为槽式太阳集热器的优化设计及运行提供参考依据。

关键词：槽式太阳集热器数值模拟压损集热效率