检索范围:
排序: 展示方式:
Study on forced air convection cooling for electronic assemblies
LI Bin, TAO Wenquan, HE Yaling
《能源前沿(英文)》 2008年 第2卷 第2期 页码 158-163 doi: 10.1007/s11708-008-0009-2
关键词: concept slotted air-cooling Preliminary computation generation
张晓鲁
《中国工程科学》 2012年 第14卷 第12期 页码 52-57
我国正处于加快转变经济发展方式的关键时期,能源需求持续增长,生态环境保护和气候压力对社会经济可持续发展的约束日渐严重。我国一次能源的结构特点决定了我国电力供应以燃煤发电为主的格局,而燃煤发电既是用煤大户也是用水大户,同时还是污染物排放大户。优化煤电发展,向集约化、环保化发展转变是电力工业的战略调整。本文论证了我国煤电技术向清洁化发展的战略思路,简要回顾了超超临界技术和大型空冷技术的研发成果与产业化推广现状,论述了这两项先进煤电技术对电力工业发展转型的支撑作用。
Weiliang WANG, Zhe TIAN
《能源前沿(英文)》 2013年 第7卷 第2期 页码 155-160 doi: 10.1007/s11708-013-0244-z
关键词: radiant cooling system dedicated outdoor air system (DOAS) thermal comfort Taguchi method variance analysis
Mark BOMBERG
《结构与土木工程前沿(英文)》 2010年 第4卷 第4期 页码 431-437 doi: 10.1007/s11709-010-0071-9
关键词: capillary active insulation integrated heating cooling and ventilation air conditioning (HVAC) and building enclosure dynamic insulation switchable thermal resistance variable U-value walls
穆彦虎, 马巍, 杨朝晖, 栗晓林, 张坤, 毛运城
《工程(英文)》 2022年 第14卷 第7期 页码 169-180 doi: 10.1016/j.eng.2021.10.020
块碎石、通风管和热管等主动冷却措施广泛应用于冻土区工程建设,通过强化冷季与外界空气的换热过程降低下伏多年冻土的温度,进而确保气候变暖背景下工程构筑物的长期稳定性。对于气冷类主动冷却措施而言,对流换热过程至关重要,因此掌握构筑物周边流场特征具有重要的意义。结合青藏高原北麓河高等级公路试验示范工程,沿垂直于路基走向的横剖面开展了路基周边近地表流场的长期定位观测。基于6 个观测塔完整的一年观测数据,研究了路基两侧60 m范围内地面以上0.5 m、1.5 m、3.0 m和4.5 m高度上风速、风向的空间分布特征及季节变化规律。结果表明,路基的存在对近地表流场有显著的影响,在背风侧的影响距离可达10 倍路基高度。路基周边近地表风速沿高度的分布可用综合幂次律描述,幂次值为0.14~0.4;远离路基位置幂次值年均水平为0.19,与以往研究中常用值存在差异。讨论了近地表风场的空间分布和季节变化对包括块石、通风管等气冷路基结构工作机制和长期效果的影响,认为低估近地表风场速度剖面的幂次值、忽略风向的季节变化可能导致气冷类主动冷却降温措施设计的不足。现场测试结果可为高原冻土区工程建设提供有益参考。
冷热电联产系统中气冷式微型透平机的发电耗水、空气污染物排放及成本影响:亚特兰大地区案例研究 Article
Jean-Ann James, Valerie M. Thomas, Arka Pandit, Duo Li, John C. Crittenden
《工程(英文)》 2016年 第2卷 第4期 页码 470-480 doi: 10.1016/J.ENG.2016.04.008
城市化进程的加快意味着城市和国际组织需要去寻找各种能够提高能源效率和减少空气中污染物排放的方法。冷热电联产(CCHP) 系统可以同时供暖、制冷和发电,具有提高城市或城市区域能源发电效率的潜力。本研究的目的是在满足建筑热需求(供热和制冷) 的各种运行条件下,对亚特兰大大都市区内的五种常见建筑类型在采用CCHP 系统时的发电耗水、CO2 和NOx 排放,及其经济性进行评价。对于大多数采用或不采用净计量策略的建筑类型来说,以满足每小时热需求去运行CCHP 系统均可减少CO2 的排放量。该系统能否对这些建筑类型产生经济效益,主要取决于天然气的价格、净计量策略的采用和假定的CCHP 系统的成本结构。当建筑物采用净计量策略并且CCHP 系统是以满足建筑物每年的最大热需求而运行时,CCHP 系统的发电耗水量和NOx 的排放量均有最大限度的减少,尽管此时该运行情景会增加温室气体排放和发电成本。CCHP 系统对中型办公楼、大型办公楼和多户型住宅建筑更经济、实用。
关键词: 冷热电联产(CCHP) 气冷式微型透平机 分布式能源发电 发电耗水 净计量
Y. YU, Q. W. PAN, L. W. WANG
《能源前沿(英文)》 2020年 第14卷 第2期 页码 328-336 doi: 10.1007/s11708-019-0623-1
关键词: silica gel-water heat and mass recovery solar energy domestic cooling and heating
Energy efficiency of small buildings with smart cooling system in the summer
Yazdan DANESHVAR, Majid SABZEHPARVAR, Seyed Amir Hossein HASHEMI
《能源前沿(英文)》 2022年 第16卷 第4期 页码 651-660 doi: 10.1007/s11708-020-0699-7
关键词: smart home heating and cooling systems saving energy optimal consumption of energy
面向异构集成应用的“片上”嵌入式冷却技术的研究进展 Review
Srikanth Rangarajan, Scott Schiffres, Bahgat Sammakia
《工程(英文)》 2023年 第26卷 第7期 页码 185-197 doi: 10.1016/j.eng.2022.10.019
The electronics packaging community strongly believes that Moore’s law will continue for another few years due to recent technological efforts to build heterogeneously integrated packages. Heterogeneous integration (HI) can be at the chip level (a single chip with multiple hotspots), in multi-chip modules, or in vertically stacked three-dimensional (3D) integrated circuits. Flux values have increased exponentially with a simultaneous reduction in chip size and a significant increase in performance, leading to increased heat dissipation. The electronics industry and the academic research community have examined various solutions to tackle skyrocketing thermal-management challenges. Embedded cooling eliminates most sequential conduction resistance from the chip to the ambient, unlike separable cold plates/heat sinks. Although embedding the cooling solution onto an electronic chip results in a high heat transfer potential, technological risks and complexity are still associated with the implementation of these technologies and with uncertainty regarding which technologies will be adopted. This manuscript discusses recent advances in embedded cooling, fluid selection considerations, and conventional, immersion, and additive manufacturing-based embedded cooling technologies.
《能源前沿(英文)》 2022年 第16卷 第2期 页码 321-335 doi: 10.1007/s11708-021-0741-4
关键词: biomass-fired cogeneration district heat production system absorption heat pump extraction steam cooling water low-pressure feedwater
A comprehensive energy solution for households employing a micro combined cooling, heating and power
Huayi ZHANG, Can ZHANG, Fushuan WEN, Yan XU
《能源前沿(英文)》 2018年 第12卷 第4期 页码 582-590 doi: 10.1007/s11708-018-0592-9
In recent years, micro combined cooling, heating and power generation (mCCHP) systems have attracted much attention in the energy demand side sector. The input energy of a mCCHP system is natural gas, while the outputs include heating, cooling and electricity energy. The mCCHP system is deemed as a possible solution for households with multiple energy demands. Given this background, a mCCHP based comprehensive energy solution for households is proposed in this paper. First, the mathematical model of a home energy hub (HEH) is presented to describe the inputs, outputs, conversion and consumption process of multiple energies in households. Then, electrical loads and thermal demands are classified and modeled in detail, and the coordination and complementation between electricity and natural gas are studied. Afterwards, the concept of thermal comfort is introduced and a robust optimization model for HEH is developed considering electricity price uncertainties. Finally, a household using a mCCHP as the energy conversion device is studied. The simulation results show that the comprehensive energy solution proposed in this work can realize multiple kinds of energy supplies for households with the minimized total energy cost.
关键词: energy hub micro combined cooling heating and power generation (mCCHP) thermal comfort robust optimization
A state-of-the-art review of solar passive building system for heating or cooling purpose
Arun Kumar NANDA,C K PANIGRAHI
《能源前沿(英文)》 2016年 第10卷 第3期 页码 347-354 doi: 10.1007/s11708-016-0403-0
关键词: HVAC heating cooling solar heating carbon dioxide (CO2) emissions
Dieter BOHN, Robert KREWINKEL
《能源前沿(英文)》 2009年 第3卷 第4期 页码 406-413 doi: 10.1007/s11708-009-0041-x
关键词: conjugate calculation effectiveness of effusion cooling multi-layer systems CMSX-4 NiAl-FG75
黄锐
《中国工程科学》 2008年 第10卷 第11期 页码 43-46
针对冷却塔中螺旋结构类型的气液交换塔,提出其内部螺旋塔板形状的设计方法,包括塔壁上外螺旋线和塔中心轴管上内螺旋线的位置确定,以及两线之间螺旋曲面板在平面上的拓扑尺寸。通过塔的几何参数确定螺旋曲面板设计的关键参数,可实现扭曲状塔板与塔壁及内轴的准确配合。
Liquid metal cooling in thermal management of computer chips
MA Kunquan, LIU Jing
《能源前沿(英文)》 2007年 第1卷 第4期 页码 384-402 doi: 10.1007/s11708-007-0057-3
关键词: tremendous computer performance generation management improvement
标题 作者 时间 类型 操作
Study on forced air convection cooling for electronic assemblies
LI Bin, TAO Wenquan, HE Yaling
期刊论文
Indoor thermal comfort research on the hybrid system of radiant cooling and dedicated outdoor air system
Weiliang WANG, Zhe TIAN
期刊论文
A concept of capillary active, dynamic insulation integrated with heating, cooling and ventilation, air
Mark BOMBERG
期刊论文
冷热电联产系统中气冷式微型透平机的发电耗水、空气污染物排放及成本影响:亚特兰大地区案例研究
Jean-Ann James, Valerie M. Thomas, Arka Pandit, Duo Li, John C. Crittenden
期刊论文
A small-scale silica gel-water adsorption system for domestic air conditioning and water heating by the
Y. YU, Q. W. PAN, L. W. WANG
期刊论文
Energy efficiency of small buildings with smart cooling system in the summer
Yazdan DANESHVAR, Majid SABZEHPARVAR, Seyed Amir Hossein HASHEMI
期刊论文
evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam, cooling
期刊论文
A comprehensive energy solution for households employing a micro combined cooling, heating and power
Huayi ZHANG, Can ZHANG, Fushuan WEN, Yan XU
期刊论文
A state-of-the-art review of solar passive building system for heating or cooling purpose
Arun Kumar NANDA,C K PANIGRAHI
期刊论文
Numerical investigation of the effectiveness of effusion cooling for plane multi-layer systems with different
Dieter BOHN, Robert KREWINKEL
期刊论文