Institutt for energi og prosessteknikk
Recent Submissions
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Exploring possibilities to quantify the qualitative description of occupant behaviour
(Chapter, 2020)Human behaviour is a multidisciplinary subject that is being investigated by numerous scientists around the world. The ability to understand and forecast reactions can be beneficial for all scientific branches that are ... -
Building Retrofitting through Coupling of Building Energy Simulation-Optimization Tool with CFD and Daylight Programs
(Peer reviewed; Journal article, 2021)Simultaneous satisfaction of both thermal and visual comfort in buildings may be a challenging task. Therefore, this paper suggests a comprehensive framework for the building energy optimization process integrating ... -
Alignment and rotation of spheroids in unsteady vortex flow
(Peer reviewed; Journal article, 2021)Preferential orientations of inertialess nonspherical particles are examined through three qualitatively different stages of a time-evolving Taylor–Green vortex flow. Despite an unexpected decorrelation between the vorticity ... -
Advancements in environmentally extended multiregional input-output analysis: modeling drivers, pressures, and impacts
(Doctoral theses at NTNU;2021:210, Doctoral thesis, 2021)We increasingly need to rely on demand side changes to complement technological improvements to mitigate environmental impacts such as global warming and loss of biodiversity. To do so we must better understand how different ... -
Towards accurate state-of-charge (SoC) estimation in Lithium-ion batteries
(Peer reviewed; Journal article, 2021)Energy storage systems (ESSs) are critically important for the future of electric vehicles. Despite this, the safety and management of ESSs require improvement. Battery management systems (BMSs) are vital components in ESS ... -
Molecular Microbial Community Analysis as an Analysis Tool for Optimal Biogas Production
(Peer reviewed; Journal article, 2021)The microbial diversity in anaerobic digestion (AD) is important because it affects process robustness. High-throughput sequencing offers high-resolution data regarding the microbial diversity and robustness of biological ... -
Tracking and sizing of particles in the Mie scattering regime using a laser scanning technique
(Doctoral theses at NTNU;2020:219, Doctoral thesis, 2021) -
Building occupant transient agent-based model – Movement module
(Journal article; Peer reviewed, 2020)Simulation of occupant behaviour (OB) in buildings is a challenging task. Available software uses a broad spectrum of tools that try to reproduce the patterns of human activity. From building energy perspective, the main ... -
Computational fluid dynamics (CFD) modeling for biomass and wate to energy production
(Doctoral theses at NTNU;2021:177, Doctoral thesis, 2021)Solid fuel particles are usually modeled as point particles in simulations using the Eulerian-Lagrangian approach. The particles and gas phases can be resolved on vastly different scales. Since the particles are treated ... -
Identification of Existing Challenges and Future Trends for the Utilization of Ammonia-Water Absorption–Compression Heat Pumps at High Temperature Operation
(Peer reviewed; Journal article, 2021)Decarbonization of the industrial sector is one of the most important keys to reducing global warming. Energy demands and associated emissions in the industrial sector are continuously increasing. The utilization of high ... -
Experimental Measurement of Flame Describing Functions in an Azimuthally Forced Annular Combustor
(Doctoral theses at NTNU;2021:178, Doctoral thesis, 2021)Thermoacoustic instabilities have become an increasingly relevant issue in the search for lower emissions in gas turbines, both for power production and transportation. Adoption of alternative fuels in land based gas ... -
Impact of Carbon Price on Renewable Energy Using Power Market System
(Chapter, 2020)Reducing anthropogenic greenhouse gas emissions is a critical element to keep global warming below 2 °C. In terms of the IEA report, the largest sources of emission in 2016, which approaches to 42% of global total, is ... -
Comparative Life Cycle Assessment of a Diesel Electric and a Battery Electric Ferry
(Master thesis, 2020)Abstract The maritime transport sector contributes to emissions of greenhouse gases (GHGs) and global warming. Mitigation strategies are needed to limit the climate changes on Earth. One possible measure is electrification ... -
Advancements in Automated Methods for Fluid-Dynamic Turbomachinery Design
(Doctoral theses at NTNU;2021:180, Doctoral thesis, 2021)Automated design methods are emerging as a powerful tool for the fluid-dynamic design of turbomachinery components. Such automated methods integrate mathematical models of different level of sophistication with numerical ... -
Optimisation of flexible operation of natural gas combined cycles with postcombustion CO2 capture
(Doctoral theses at NTNU;2021:184, Doctoral thesis, 2021)Anthropogenic greenhouse gas emissions have continuously grown since the Industrial Revolution. Global warming is the result of increasing concentrations of these gases in the atmosphere, which create imbalances between ... -
Coupled Fluid–Solid Numerical Simulation for Flow Field Characteristics and Supporting Performance of Flexible Support Cylindrical Gas Film Seal
(Peer reviewed; Journal article, 2021)A new type of cylindrical gas film seal (CGFS) with a flexible support is proposed according to the working characteristics of the fluid dynamic seal in high-rotational-speed fluid machinery, such as aero-engines and ... -
A highly innovative yet cost-effective multi-generation energy system for net-zero energy buildings
(Peer reviewed; Journal article, 2021)This study introduced an innovative yet feasible and cost-effective solution to make a big step forward in the state-of-art of smart energy buildings and obtain a real meaning of net-zero energy building. In this study, ... -
Sizing and performance analyses of a combined heating and cooling system with the integration of short- and long-term storages
(Peer reviewed; Journal article, 2021)Technological advancements in the utilization of renewable energy sources have unveiled potentials for increasing building energy efficiency. Integrating heat pump-based energy systems with thermal storages is a suitable ... -
Varying Ignition Quality of a Fuel for a HCCI Engine Using a Photochemically-Controlled Additive: The Development of a ‘Smart’ Fuel
(Peer reviewed; Journal article, 2021)This study examines the possibility to provide control over ignition timing in a homogeneous charge compression ignition engine (HCCI) using a fuel additive whose molecular structure can be adapted upon exposure to UV ... -
Soil desiccation trends after afforestation in the Loess Plateau of China
(Journal article; Peer reviewed, 2021)
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