Browsing NTNU Open by Author "Fu, Chao"
Now showing items 1-14 of 14
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A Nonsmooth Approach to Modeling and Optimization - Application to Liquefied Natural Gas Processes and Work and Heat Exchange Networks
Vikse, Matias (Doctoral theses at NTNU;2020:54, Doctoral thesis, 2020)Despite their implicit presence in many process systems engineering applications, nonsmooth functions have repeatedly been shunned due to the existence of nondifferentiable points that cause issues for numerical solvers ... -
Compression and expansion at the right pinch temperature
Fu, Chao; Uv, Preben Maurstad; Nygreen, Bjørn; Gundersen, Truls (Journal article; Peer reviewed, 2017)Heat Integration is extended to the topic of Heat and Work Integration when pressure changing equipment such as compressors and expanders are included in heat exchanger network design. The latter topic is much more complex ... -
Compression and Expansion at the Right Pinch Temperature
Fu, Chao; Uv, Preben Maurstad; Nygreen, Bjørn; Gundersen, Truls (Chapter, 2017)Heat Integration is extended to the topic of Heat and Work Integration when pressure changing equipment such as compressors and expanders are included in heat exchanger network design. The latter topic is much more complex ... -
Heuristic solution approach to simultaneous optimization of heat and work integration - A two-level optimization model using genetic algorithms to establish the energy target for maximum heat and work recovery
Borge, Kari Sofie Hall (Master thesis, 2017)Heat integration is of significant importance to the process industry in the efforts of reducing energy consumption and total annual costs. The heat integration problem attempts finding the optimal interconnections of ... -
Identifying optimal thermodynamic paths in work and heat exchange network synthesis
Yu, Haoshui; Fu, Chao; Vikse, Matias; He, Chang; Gundersen, Truls (Journal article; Peer reviewed, 2018)The process synthesis problem referred to as work and heat exchange networks (WHENs) is an extension of the classical heat exchanger networks problem considering only temperature and heat. In WHENs, additional properties ... -
The importance of thermodynamic insight in Work and Heat Exchange Network Design
Fu, Chao; Wang, Xiaoling; Gundersen, Truls (Peer reviewed; Journal article, 2020)Work and Heat Exchange Network (WHEN) design has been an emerging topic in the area of Process Synthesis and has attracted increasing research interest in the past few years. Not only temperature changes but also pressure ... -
Optimal design of heat exchanger networks with pressure changes.
Uv, Preben Maurstad (Master thesis, 2016)Due to climate change is it desirable to improve the energy efficiency of production systems. The environmental impact will decrease with increasing energy efficiency and it will even reduce the operational cost. Heat ... -
Optimal integration of compression heat with regenerative steam Rankine cycles in oxy-combustion coal based power plants
Fu, Chao; Anantharaman, Rahul; Gundersen, Truls (Journal article; Peer reviewed, 2015)The integration of process heat with regenerative steam Rankine cycles by preheating the boiler feedwater increases power generation from the steam turbines. In oxy-combustion coal based power plants, considerable compression ... -
Optimal use of Process Streams as Working Fluids in Work and Heat Exchange Networks (WHENs)
Yu, Haoshui; Fu, Chao; Gundersen, Truls; Gencer, Emre (Chapter, 2020)Design of Heat Exchanger Networks (HENs) has been widely studied and applied since it can significantly reduce energy consumption in the process industries. However, pressure effects are ignored in HENs. To consider ... -
Thermal efficiency of coal-fired power plants: From theoretical to practical assessments
Fu, Chao; Anantharaman, Rahul; Jordal, Kristin; Gundersen, Truls (Journal article; Peer reviewed, 2015)The improvement in thermal efficiency for coal to power processes is increasingly important due to concerns on CO2 emissions. This paper presents a systematic study on direct combustion coal to power processes with respect ... -
Work and Heat Exchange Networks – Opportunities and Challenges
Yu, Haoshui; Fu, Chao; Gundersen, Truls (Journal article; Peer reviewed, 2018)Design and optimization of Heat Exchanger Networks (HENs) is well established and has been heavily applied in the process industries since its pioneering period in the 1970s and 1980s. While temperature and thermal energy ... -
Work and Heat Integration: An emerging research area
Fu, Chao; Vikse, Matias; Gundersen, Truls (Journal article; Peer reviewed, 2018)The extension from Heat Integration (HI) and design of Heat Exchanger Networks (HENs) to including heating and cooling effects from pressure changing equipment has been referred to as Work and Heat Integration and design ... -
Work and heat integration—A new field in process synthesis and process systems engineering
Yu, Haoshui; Fu, Chao; Vikse, Matias; Gundersen, Truls (Journal article; Peer reviewed, 2018)The extension from heat integration and design of heat exchanger networks (HENs) to including heating, cooling, and power effects from pressure changing equipment has been referred to as work and heat integration and design ... -
Work Exchange Networks (WENs) and Work and Heat Exchange Networks (WHENs): A review of the current state of the art
Yu, Haoshui; Fu, Chao; Gundersen, Truls (Peer reviewed; Journal article, 2020)This paper provides a current state-of-the-art review of literature on work exchange networks (WENs) and work and heat exchange networks (WHENs). Heat exchange networks (HENs) and mass exchange networks (MENs) have been ...