Browsing Institutt for energi og prosessteknikk by Journals "Chemical Engineering Transactions"
Now showing items 1-20 of 27
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An evaluation of effects of fuel parameters and flue gas recirculation on NOx emissions through detailed chemical kinetics simulations
(Journal article; Peer reviewed, 2019)In this work the effects of fuel parameters and under grate flue gas recirculation (FGR) are investigated when applying staged air combustion of solid fuel for the purpose of NOx reduction. In addition to temperatures, ... -
Assessment of Transient NOx Reduction Potential in Wood Stoves
(Journal article; Peer reviewed, 2020)NOx emissions from wood stoves remain a significant concern, even though modern wood stoves are continuously improved regarding emissions due to incomplete combustion, e.g. particulates of organic origin. Today, state of ... -
Carbonization pressure influence on fixed carbon yield
(Journal article; Peer reviewed, 2018)Biocarbon, or charcoal, is receiving increased attention as an increasingly important reductant in metallurgical industries, and has as well many others uses, e.g. as high quality fuel or as activated carbon. Traditional ... -
CO2 reactivity assessment of woody biomass biocarbons for metallurgical purposes
(Journal article; Peer reviewed, 2016)Replacing the use of fossil reductants with biocarbons in metallurgical industries has a great potential with respect to reducing CO2 emissions and the contribution from this industry to the increasing greenhouse gas effect. ... -
Coal Based Power Plants Using Oxy-Combustion for CO2 Capture: Pressurized Coal Combustion to Reduce Capture Penalty
(Journal article; Peer reviewed, 2012)The goal of this paper is to design and study a new variation of an oxy-combustion coal based power plant with CO2 capture that employs a pressurized coal combustor. The concept is compared with an atmospheric pressure ... -
Detailed operational mapping of a grate fired Biomass combustion plant for improved combustion process control
(Journal article; Peer reviewed, 2016)Biomass combustion plants in Norway are facing stricter emission regulations and lower profitability, mostly due to low energy prices. Hence, performance optimization through improved combustion process control and/or ... -
Effective Concepts for Supplying Energy to a Large Offshore Oil and Gas Area under Different Future Scenarios
(Journal article; Peer reviewed, 2017)Different possibilities were assessed to supply energy to a large offshore oil and gas area in the North Sea. The concepts studied involved: (i) onsite power generation by means of simple gas turbine cycles, (ii) full ... -
Energy effective and green drying technologies with industrial applications
(Peer reviewed; Journal article, 2018)Heat pump drying is a green technology with zero global warming potential and zero ozone depletion potential when operating with natural fluids. A well designed heat pump dryer can be several times more energy efficient ... -
Hydrothermal Gasification of Biogas Digestate: a Parametric Study Using a Matlab-based Code
(Peer reviewed; Journal article, 2023)In this work, effect of process parameters on hydrothermal gasification (HTG) of biogas digestate are thermodynamically investigated using a Matlab-based code, which is capable of modelling the effects of the feedstock’s ... -
Hydrothermal Gasification of Biogas Digestate: a Thermodynamic Study on Effects of Process Parameters Using Aspen Plus
(Peer reviewed; Journal article, 2023) -
The importance of thermodynamic insight in Work and Heat Exchange Network Design
(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 ... -
An Innovative Polygeneration System Integrating Compressed Air Energy Storage (CAES) and Multi-effect Desalination for Efficient LNG Cold Energy Utilization
(Peer reviewed; Journal article, 2022)Liquefied natural gas (LNG) contains a huge amount of cold energy, generally wasted during the regasification process. With the increasing penetration of renewable energy in the grid, the power generation profile does not ... -
Investigation of an Innovative Latent Heat Storage Concept in a Stovepipe
(Journal article; Peer reviewed, 2018)Latent heat storage (LHS) is a promising concept for small-scale batch combustion. One example is wood stoves, which rely on a batch combustion process that yields a transient heat production with high peak effect. A ... -
Multi-component Fluid Cycles in Liquid Air Energy Storage
(Peer reviewed; Journal article, 2020)With the penetration of renewable energy sources into the energy market, an emerging problem is the energy stability during energy supply and delivery. Energy storage technologies have the ability to overcome the intermittent ... -
A Novel Integrated System Driven by Allam Cycle for the Simultaneous Energy, Water, and Waste Management
(Peer reviewed; Journal article, 2023)Energy and water are indispensable to human activities and economic growth, especially with increasing energy and water security concerns in the coming years. In addition, with fast urbanization, how to deal with huge ... -
On The Development of a Counter-Flow Mixing Reactor for Fast Hydrothermal Liquefaction
(Peer reviewed; Journal article, 2022)A laboratory-scale continuous tubular flow reactor system has been developed for fast HTL (hydrothermal liquefaction) of lignin, adopting the nozzle reactor concept with a counter-flow mixing design. The reactor is capable ... -
Optimization of an Absorption-Based Biogas Upgrading and Liquefaction Process
(Journal article; Peer reviewed, 2019)The present work proposes a methodology for optimization of a liquefied biomethane (LBM) production plant. The LBM production plant comprises amine-based absorption upgrading followed by a single expander refrigeration ... -
Organic Rankine Cycle with Pure and Mixed Working Fluids for LNG Cold Energy Recovery
(Journal article; Peer reviewed, 2019)Liquefied Natural Gas (LNG) contains a large amount of cold exergy, which is normally wasted during the regasification process. Organic Rankine Cycles (ORCs), which have been widely employed for low-temperature waste heat ... -
Oxy-combustion coal based power plants: study of operating pressure, oxygen purity and downstream purification parameters
(Journal article; Peer reviewed, 2014)Oxy-combustion coal based power plants are considered one of the cost effective ways to produce CO2 emission free electricity. Recovery of compression heat and the latent heat from the flue gases can further improve the ... -
Synthesis of Heat-Integrated Water Networks with exergo-economic criteria
(Peer reviewed; Journal article, 2023)This paper considers the exergy analysis of Heat-Integrated Water Networks (HIWNs) rarely addressed in the literature. Two objective functions were analyzed, with the first minimizing the total annualized cost (TAC) and ...