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Yi DOU, Keijiro OKUOKA, Minoru FUJII, Hiroki TANIKAWA, Tsuyoshi FUJITA, Takuya TOGAWA, Liang DONG
《能源前沿(英文)》 2018年 第12卷 第3期 页码 411-425 doi: 10.1007/s11708-018-0577-8
District heating systems using cogeneration technology and renewable resources are considered as an effective approach to resources conservation and reduction of greenhouse gas (GHG) emissions. However, wide-spread aging and depopulation problems, as well as the popularization of energy-saving technologies in buildings, are estimated to greatly decrease energy consumption, leading to inefficiency in district heating and barriers to technology proliferation. From a long-term perspective, land use changes, especially the progression of compact city plans, have the potential to offset the decrement in energy consumption that maintains the efficiency of district heating systems. An integrated model is developed in this paper based on building cohort analysis to evaluate the economic feasibility and environmental impact of introducing district heating systems to a long-term compact city plan. As applied to a case in the Soma Region of Fukushima, Japan, potential migration from the suburbs to the central station districts is simulated, where district heating based on gas-fired cogeneration is expected to be introduced. The results indicate that guided migration to produce concentrated centers of population can substantially increase the heat demand density, which supports a wider application of district heating systems and better low-carbon performance. These results are further discussed in relation to technology innovation and related policies. It is concluded that policies related to urban land use planning and energy management should be integrated and quantitatively evaluated over the long-term with the aim of supporting urban low-carbon sustainable development.
关键词: building stock compact city district heating energy use Fukushima
Creep of brazed plate-fin structures in high temperature compact heat exchangers
Shantung TU, Guoyan ZHOU
《机械工程前沿(英文)》 2009年 第4卷 第4期 页码 355-362 doi: 10.1007/s11465-009-0065-2
Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces
REN Hesheng, LAI Lingjun, CUI Yongzheng
《能源前沿(英文)》 2008年 第2卷 第4期 页码 374-380 doi: 10.1007/s11708-008-0079-1
关键词: coefficient dimensionless longitudinal longitudinal temperature conduction
Discussion on back-to-back two-stage centrifugal compressor compact design techniques
Lei HUO, Huoxing LIU
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 390-400 doi: 10.1007/s11465-013-0278-2
Design a small flow back-to-back two-stage centrifugal compressor in the aviation turbocharger, the compressor is compact structure, small axial length, light weighted. Stationary parts have a great influence on their overall performance decline. Therefore, the stationary part of the back-to-back two-stage centrifugal compressor should pay full attention to the diffuser, bend, return vane and volute design. Volute also impact downstream return vane, making the flow in circumferential direction is not uniformed, and several blade angle of attack is drastically changed in downstream of the volute with the airflow can not be rotated to required angle. Loading of high-pressure rotor blades change due to non-uniformed of flow in circumferential direction, which makes individual blade load distribution changed, and affected blade passage load decreased to reduce the capability of work, the tip low speed range increases.
关键词: back-to-back two-stage centrifugal compressor design Internal flow
Flow and heat transfer in compact offset strip fin surfaces
DONG Junqi, CHEN Jiangping, CHEN Zhijiu
《能源前沿(英文)》 2008年 第2卷 第3期 页码 291-297 doi: 10.1007/s11708-008-0061-y
Innovation Ecosystem for Green Smart City Building in China
Jin Chen
《工程管理前沿(英文)》 2015年 第2卷 第4期 页码 325-330 doi: 10.15302/J-FEM-2015058
关键词: green smart city resource innovation ecosystem building
《工程管理前沿(英文)》 页码 566-581 doi: 10.1007/s42524-023-0267-z
关键词: grass swale infiltration swale bioswale wet swale sponge city
李成名,刘晓丽
《中国工程科学》 2013年 第15卷 第5期 页码 4-7
首先综述了构建权威、唯一、通用的数字城市地理空间框架的必要性,然后详细介绍了我国数字城市建设的总体思路、进展情况、发挥的作用及产生的影响。接下来,针对时代发展、技术进步和需求变化,论述了当前地理空间框架面临的全新发展机遇和挑战,以及存在的问题,明确指出了智慧城市阶段时空信息框架的建设目标与内容,展望了下一步技术突破的方向。
China’s Sponge City construction: A discussion on technical approaches
Haifeng Jia, Zheng Wang, Xiaoyue Zhen, Mike Clar, Shaw L. Yu
《环境科学与工程前沿(英文)》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0984-9
关键词: Low impact development (LID) Green infrastructure (GI) Sponge City Barriers Construction strategies
Hallvard Ødegaard
《环境科学与工程前沿(英文)》 2016年 第10卷 第4期 doi: 10.1007/s11783-016-0835-0
关键词: China concept WWTP Energy-neutrality De-ammonification moving bed biofilm reactor (MBBR)
Substance flow analysis for an urban drainage system of a representative hypothetical city in China
Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN
《环境科学与工程前沿(英文)》 2013年 第7卷 第5期 页码 746-755 doi: 10.1007/s11783-013-0551-y
关键词: substance flow analysis (SFA) urban drainage system representative hypothetical city (RH city) water pollution control
樊明武,余调琴,熊永前,陈德智,熊健,秦斌,洪月明,邓昌东
《中国工程科学》 2003年 第5卷 第10期 页码 8-13
小型回旋加速器虚拟样机技术是把小型回旋加速器的理论计算、分析、信息技术与机械设计、加工、装配、调试、运行、维修等专家知识进行有机结合,在系统仿真和虚拟现实基础上发展起来的一种新概念技术。基于虚拟样机,可以实现创新设计,有效降低探索风险。文章探讨了回旋加速器虚拟样机系统框架,讨论了虚拟样机系统的体系结构和回旋加速器产品的全生命周期仿真,提出了基于全生命周期集成和多学科协同设计的回旋加速器虚拟样机的开发思路。
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《医学前沿(英文)》 2012年 第6卷 第2期 页码 217-220 doi: 10.1007/s11684-012-0192-8
董国良
《中国工程科学》 2006年 第8卷 第6期 页码 7-13
总结了城市可持续发展面临着占地多、交通堵、停车难、步行难、能耗高、效率低、治安差、不宜居及交通事故频发、交通投资巨大等十大难题,给出了破解这些难题的基本公式;在各项基本公式的指引下,由诸多复杂的城市模式方案中升华而产生的节约·生态·畅通城市新模式(JD模式)一旦得到推广,十大难题将全面破解,城市宜居指数将提高1倍;可持续发展的城市格局不应该像象棋棋盘一样锁定中心位置,而应该像围棋棋盘一样各个中心的位置可以在发展中形成和变化,这就是城市泛中心论。
Low Impact Development and Sponge City Construction for Urban Stormwater Management
Haifeng Jia, Shaw L. Yu, Huapeng Qin
《环境科学与工程前沿(英文)》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0989-4
标题 作者 时间 类型 操作
Proliferation of district heating using local energy resources through strategic building-stock management: A case study in Fukushima, Japan
Yi DOU, Keijiro OKUOKA, Minoru FUJII, Hiroki TANIKAWA, Tsuyoshi FUJITA, Takuya TOGAWA, Liang DONG
期刊论文
Creep of brazed plate-fin structures in high temperature compact heat exchangers
Shantung TU, Guoyan ZHOU
期刊论文
Sensitivity analysis and numerical experiments on transient test of compact heat exchanger surfaces
REN Hesheng, LAI Lingjun, CUI Yongzheng
期刊论文
Discussion on back-to-back two-stage centrifugal compressor compact design techniques
Lei HUO, Huoxing LIU
期刊论文
Flow and heat transfer in compact offset strip fin surfaces
DONG Junqi, CHEN Jiangping, CHEN Zhijiu
期刊论文
The development of roadside green swales in the Chinese Sponge City Program: Challenges and opportunities
期刊论文
China’s Sponge City construction: A discussion on technical approaches
Haifeng Jia, Zheng Wang, Xiaoyue Zhen, Mike Clar, Shaw L. Yu
期刊论文
A road-map for energy-neutral wastewater treatment plants of the future based on compact technologies
Hallvard Ødegaard
期刊论文
Substance flow analysis for an urban drainage system of a representative hypothetical city in China
Hua BAI, Siyu ZENG, Xin DONG, Jining CHEN
期刊论文
Prevalence and causes of air pollution and lung cancer in Xuanwei City and Fuyuan County, Yunnan Province
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期刊论文