Blar i Fakultet for ingeniørvitenskap (IV) på tidsskrift "Computers and Chemical Engineering"
Viser treff 1-18 av 18
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Biodigester Rapid Analysis and Design System (B-RADeS): A candidate attainable region-based simulator for the synthesis of biogas reactor structures
(Journal article; Peer reviewed, 2020)Anaerobic digesters are seldom designed based on process kinetics, but rather on a combination of hydraulic and organic loading, which may limit operational performance. This study focuses on the incorporation of process ... -
Can the operating limits of biogas plants operated under non-isothermal conditions be defined with certainty? Modeling self-optimizing attainable regions.
(Peer reviewed; Journal article, 2020)Uncertainty in operating parameters such as temperature undermines the reliability of using kinetic models in performance projections for plants operated under ambient non-isothermal conditions. This study develops a ... -
Compact Formulations for Efficient Early-Phase Field Development Optimization of Multi-Reservoir Fields
(Peer reviewed; Journal article, 2021)A compact formulation has been developed to efficiently optimize early-stage field development planning of multi-reservoir fields. The proposed formulation is a mixed-integer linear programming model which employs ... -
Data-driven derivative-free trust-region model-based method for resource allocation problems
(Peer reviewed; Journal article, 2023)Allocating a limited available resource between a set of units is a problem that arises in several application areas. We propose an online derivative-free trust-region model-based method to tackle a fairly general version ... -
Energy efficient design of membrane processes by use of entropy production minimization
(Journal article; Peer reviewed, 2018)To minimize entropy production means to reduce the lost work in a process, and to optimize the use of energy resources. Due to the need for re-compression, membrane units for separation of CO2 from natural gas require large ... -
Enhanced single-loop control of a moving bed temperature swing adsorption CO2 capture process
(Peer reviewed; Journal article, 2023)Using a model in gPROMS, we study a Zeolite 13X-based moving bed temperature swing adsorption (MBTSA) process designed to capture CO2 from a coal-fired power plant. Two enhanced single-loop control strategies were compared ... -
A flexible and robust modelling framework for multi-stream heat exchangers
(Peer reviewed; Journal article, 2013)Heat exchangers are important units in most industrial processes. They involve physical phenomena such as condensation and evaporation including several boiling regimes. Different types of heat exchangers constructed for ... -
Formulations for automatic optimization of decommissioning timing in offshore oil and gas field development planning
(Journal article; Peer reviewed, 2022)A mathematical programming formulation has been developed to optimize the drilling program, the production allocation, and the decommissioning time in early-stage field development planning. Various abandonment constraints ... -
Introducing Approximate Well Dynamics into Production Optimization for Operations Scheduling
(Journal article; Peer reviewed, 2020)Most of the literature on short-term production optimization concerns the computation of optimal system settings for steady-state operations. Such methodologies are applicable when the scales of time are faster than reservoir ... -
Lessons learned from HIAD 2.0: Inspection and maintenance to avoid hydrogen-induced material failures
(Peer reviewed; Journal article, 2023)Hydrogen has the potential to make countries energetically self-sufficient and independent in the long term. Nevertheless, its extreme combustion properties and its capability of permeating and embrittling most metallic ... -
Model predictive control for combined cycles integrated with CO2 capture plants
(Peer reviewed; Journal article, 2021)Flexible thermal power plants integrated with CO2 capture systems can balance the intermittent power generation of renewable energy sources with low-carbon electricity. Among these power systems, natural gas combined cycles ... -
Model reformulations for Work and Heat Exchange Network (WHEN) synthesis problems
(Journal article; Peer reviewed, 2019)The Duran-Grossmann model can deal with heat integration problems with variable process streams. Work and Heat Exchange Networks (WHENs) represent an extension of Heat Exchange Networks. In WHEN problems, the identities ... -
A novel cost-effective silica membrane-based process for helium extraction from natural gas
(Peer reviewed; Journal article, 2019)Natural gas reserves with 0.3–2 mol% helium are considered as the only viable source for this noble gas. Currently, cryogenic separation is used to extract helium, but it is energy-intensive. While membrane-based separation ... -
Optimal cryogenic processes for nitrogen rejection from natural gas
(Journal article; Peer reviewed, 2018)Nitrogen rejection processes are usually needed for two natural gas sources: sub-quality natural gas reserves and produced gas from enhanced oil/gas recovery technologies. The nitrogen content of natural gas in the former ... -
Optimization and analysis of different liquid air energy storage configurations
(Journal article; Peer reviewed, 2022)Energy storage technologies are required to ensure stability of energy systems when the share of renewable energy forms (wind and solar) is increasing. Liquid air energy storage (LAES) is a promising technology for storing ... -
Optimization of helium extraction processes integrated with nitrogen removal units: A comparative study
(Journal article; Peer reviewed, 2019)Helium is regarded as a vital gas to various industries such as medicine, aircraft manufacturing, electronics and fiber optics fabrication. Currently, natural gas reserves are considered the only viable resource for this ... -
A Survey on the Application of Machine Learning and Metaheuristic Algorithms for Intelligent Proxy Modeling in Reservoir Simulation
(Peer reviewed; Journal article, 2022)Machine Learning (ML) has demonstrated its immense contribution to reservoir engineering, particularly reservoir simulation. The coupling of ML and metaheuristic algorithms illustrates huge potential for application in ... -
Transient system-level performance and thermo-mechanical stress analysis of a solid oxide fuel cell-based power generation plant with a multi-physics approach
(Journal article; Peer reviewed, 2020)A solid oxide fuel cell-based (SOFC) power generation plant is analyzed with a view to performance as well as thermo-mechanical stresses. Emphasis is given to design and operation constraints of individual components as ...