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关于锅炉性能试验应用方法的最新研究 被引量:2
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作者 赵振宁 张清峰 郑飞 《华北电力技术》 CAS 2014年第9期27-34,共8页
介绍了以我国国标和ASME标准为代表的电站锅炉性能试验标准两大技术流派的发展,并针对锅炉效率的定义、计算方法及应用条件等多个关键点的异同进行了讨论,阐明了其原因、工作原理及各自的利弊。对我国火力发电行业锅炉机组的设计、制造... 介绍了以我国国标和ASME标准为代表的电站锅炉性能试验标准两大技术流派的发展,并针对锅炉效率的定义、计算方法及应用条件等多个关键点的异同进行了讨论,阐明了其原因、工作原理及各自的利弊。对我国火力发电行业锅炉机组的设计、制造、运行、调试的工程技术人员更好地使用电站锅炉性能试验标准具有一定参考价值。 展开更多
关键词 动力机械工程 锅炉 性能试验 ASME规程 国标规程
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锅炉进风温度修正计算方法的研究 被引量:2
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作者 郑浦水 赵振宁 《江苏电机工程》 2012年第5期65-68,共4页
进风温度变化对于排烟温度的修正是锅炉性能试验中最为重要的一项,但由于ASME标准和我国GB标准对修正计算公式的规定不同,使用过程中存在误解。对该修正进行了导出和分析,得出使用该公式的条件为:空预器顶端、侧边密封良好,漏风可忽略;... 进风温度变化对于排烟温度的修正是锅炉性能试验中最为重要的一项,但由于ASME标准和我国GB标准对修正计算公式的规定不同,使用过程中存在误解。对该修正进行了导出和分析,得出使用该公式的条件为:空预器顶端、侧边密封良好,漏风可忽略;进风温度选择空预器入口冷风温度,且修正前后漏风率相同。在此基础上提出考虑漏风率有变化条件,用风机入口温度的变化来修正排烟温度的计算方法。该方法与传统方法形式一致,便于理解,对正确处理该类问题有明确的参考意义。 展开更多
关键词 动力机械工程 进风温度 排烟温度 修正 ASME规程 国标规程
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Planning method of infrastructure project in China 被引量:2
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作者 Du Xiangrong Watanabe Tsunemi 《Engineering Sciences》 EI 2010年第4期80-85,共6页
Different planning methods have been applied in private and public infrastructure projects, which resulted in different approval procedures and querry about impartiality. However, planning methods of infrastructure pr... Different planning methods have been applied in private and public infrastructure projects, which resulted in different approval procedures and querry about impartiality. However, planning methods of infrastructure projects are seldom investigated up to now. The authors propose a proper project planning method which is applicable to all kinds of infrastructure projects with various funedorigins. The project planning method includes a comprehensive planning frame- work and a six-step planning process. The financial indicator, i. e. , self-reimbursement ratio is introduced for the proper division of financial obligation between government and project company. 展开更多
关键词 China INFRASTRUCTURE implementation scheme PLANNING PROJECT self-reimbursement rate
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What Do Social Workers Think About Unaccompanied Foreign Minors' Family Fostering in Italy
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作者 Anna D'Andrea 《Sociology Study》 2015年第12期944-952,共9页
In Italy, the unaccompanied foreign minors are a growing and heterogeneous group with ever changing origins, trajectories, and features. In November 2015, they were 10,952. This research focuses on their foster care a... In Italy, the unaccompanied foreign minors are a growing and heterogeneous group with ever changing origins, trajectories, and features. In November 2015, they were 10,952. This research focuses on their foster care and examines the point of view of social workers that have theoretical competences and fieldwork. The main objective of this paper is to present operational recommendations concerning the definition and organization of this instrument, starting from social workers' direct experiences. Main results: A friendly familiar setting is useful to overcome loneliness and social isolation coming from a new and unknown realiW during adolescence and permit a better social, school, and professional integration for the minor compared with residential care. For a successful outcome, the strengths consist in: The young migrant must not have behavioral nor psychiatric disorders and must be willing to integrate himself into a new family, recognize adult authoriW and share his life plan with family's adults; training all foster families included omo-cultural ones; the birth family involvement in the foster care's project. The ascertained criticalities concern on the low number of available families, the lack of standard operating procedures, guidelines, research, and literature on the topic. 展开更多
关键词 Unaccompanied foreign minors foster placement social services
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锅炉性能试验标准的不同体系及主要异同 被引量:9
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作者 赵振宁 张清峰 《电站系统工程》 北大核心 2011年第5期16-18,21,共4页
介绍了以我国国标和ASME标准为代表的电站锅炉性能试验标准两大技术流派的发展,并针对锅炉效率的定义、计算方法及应用条件等多个关键点的异同进行了讨论,阐明了其原因、工作原理及各自的利弊。
关键词 动力机械工程 锅炉 性能试验 ASME规程 国标规程
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