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Heat exchanger network synthesis integrated with flexibility and controllability
Heat exchanger networks Flexibility Controllability Coupling Synthesis
2023/6/19
Over the last three decades, flexibility and controllability considerations for heat exchanger networks (HENs) have received great attention, respectively. However, they should be simultaneously incor...
A thermo-economic multi-objective optimization model for simultaneous synthesis of heat exchanger networks including compressors
Superstructure Heat exchanger networks Compressor Mathematical programming Multi-objective Thermo-economic
2023/6/19
TWo significant forms of energy widely used in chemical industries are heat and work related to temperature and pressure manipulation. Since complex relationship exists in these strongly interacting p...
Multiobjective Optimization of Interplant Heat Exchanger Networks Considering Utility Steam Supply and Various Locations of Interplant Steam Generation/Utilization
Heat Exchanger Networks Utility Steam Supply
2023/6/19
A multiobjective optimization (MOO) framework considering the dual objectives of the economy and the environment is presented in this work for the extended integration of interplant heat exchanger net...
Simultaneous Optimization of a Heat-Integrated Coal-to-SNG/MeOH Polygeneration Process Based on Rigorous Kinetic Models
SNG MeOH Heat-Integrated Kinetic Models
2023/6/19
In this article, a novel simulation-optimization method is proposed for the simultaneous design of a heat-integrated coal-to-SNG/MeOH (CTSM) polygeneration process, aiming at exergy efficiency enhance...
Superstructure-Based Simultaneous Optimization of a Heat Exchanger Network and a Compression-Absorption Cascade Refrigeration System for Heat Recovery
Heat Exchanger Network Refrigeration System Heat Recovery
2023/6/19
A heat exchanger network (HEN) plays an important role in the chemical process industry owing to its significant effect in energy recovery. A compression-absorption cascade refrigeration system (CACRS...
With new heat treatment, 3D-printed metals can withstand extreme conditions（图）
热处理 3D打印 金属微观结构 燃气轮机 喷气发动机 叶片
2023/6/6
A new MIT-developed heat treatment transforms the microscopic structure of 3D-printed metals, making the materials stronger and more resilient in extreme thermal environments. The technique could make...
Reducing the use of fossil fuels will have unintended consequences for the power-generation industry and beyond. For example, many industrial chemical processes use fossil-fuel byproducts as precursor...
A new heat engine with no moving parts is as efficient as a steam turbine（图）
运动部件 新型热机 蒸汽轮机 脱碳电网
2023/6/7
Engineers at MIT and the National Renewable Energy Laboratory (NREL) have designed a heat engine with no moving parts. Their new demonstrations show that it converts heat to electricity with over 40 p...
Researchers have found a way to make cheap thermoelectrics that work just as well as the pricey kind. The work could pave the way for a new generation of greener car engines, industrial furnaces, and ...
Condensation heat transfer of steam on vertical dropwise and filmwise coexisting surfaces with a thick organic film promoting dropwise
蒸汽 滴状 膜状 DFC 冷凝传热
2023/3/1
This article describes an experimental investigation of the condensation heat transfer of steam on dropwise and filmwise coexisting (DFC) surfaces, on which dropwise and filmwise exist simultaneously ...
Effects of hydrophilic surface on heat transfer performance and oscillating motion for an oscillating heat pipe
Oscillating heat pipe (OHP) Oscillating motion Heat transfer Superhydrophilic surface Hydrophilic surface
2023/3/1
In this paper, a series of experiments were performed to investigate the effects of superhydrophilic and hydrophilic surfaces on the heat transfer performance and slug motion for oscillating heat pipe...
Heat Transfer Enhancement of Horizontal Oscillating Heat Pipes With Micro-/Nanostructured Surface
oscillating heat pipes (OHPs) micro-/nanostructured surface horizontal heating direction
2023/3/1
For oscillating heat pipes (OHPs) with low turn number (<9) positioned in the horizontal direction, the working fluid could not easily flow back to the evaporator due to the absence of gravity. Based ...
浙江大学动力机械及车辆工程研究所刘震涛教授课题组在传热传质国际权威期刊《International Journal of Heat and Mass Transfer》（ZJU TOP）发表文章（图）
航空发动机 散热 活塞发动机 传热能力
2022/3/9
航空发动机应用于高空,飞行跨度较大,温度剧烈变化,温差在少十度甚至到上百度。与此同时,大气环境产生剧烈变化,增加了对发动机冷却系统的要求。与地面环境相比，万米以上高空的散热条件恶劣。空气密度随海拔的递减又对活塞发动机提出了增压要求，从而给热管理系统引进了增压中冷这一新的热源，进而增加了冷却系统的负荷。这些因素制约着航空活塞发动机性能的提升和轻量化的发展，成为了困扰航空活塞发动机技术突破的瓶颈之一。
A humble carbon nanotube may be just the device to make solar panels -- and anything else that loses energy through heat -- far more efficient.NSF-funded scientists at Rice University are designing ar...
URBAN HEAT ISLAND MICRO-MAPPING VIA 3D CITY MODEL
Urban Heat Island 3D City Models 3D Solar Analysis
2018/11/9
Urban Heat Island (UHI) phenomenon has been a topic of intense study over the past several years. However, to visualise UHI model is still an issue. Common visualisation of UHI by using digital themat...