Blar i Institutt for energi og prosessteknikk på tittel
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Droplet impaction on solid surfaces exposed to impinging jet fires
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:169, Doctoral thesis, 2006)The thermal response of hot surfaces exposed to impinging jet fire and subsequent impacting water droplets is investigated. The research was done mainly experimentally by utilizing three different concepts. This included ... -
Drying of Thermally Thick Wood Particles: A Study of the Numerical Efficiency, Accuracy, and Stability of Common Drying Models
(Journal article; Peer reviewed, 2017)The primary focus of this paper is on studying different numerical models for drying of wet wood particles. More specifically, the advantages and disadvantages of the models, with respect to numerical efficiency, stability, ... -
Dynamic analysis of a system with RPT
(Master thesis, 2018)The purpose of this master thesis is to establish and validate a simulation model of the transition from pump to turbine mode of operation for hydropower systems with reversible pump-turbines (RPTs). The model builds on ... -
Dynamic Analysis of Energy Recovery Utilizing Thermal Storage from Batch-Wise Metal Casting
(Chapter, 2020)The thermal exergy contained in the liquid metal in ferroalloy production makes it an interesting source for energy recovery. The heat released during casting is rarely utilized today. This work investigates the feasibility ... -
Dynamic analysis of material flows and embodied emissions of the building stock of a zero emission neighbourhood. Case study: Ydalir
(Master thesis, 2019)The bottom-up approach model developed earlier by Næss et al. (2018) is extended to include the dynamic material flow and embodied emissions from materials during con- struction, renovation and demolition activities of a ... -
Dynamic Behavior of Reversible Pump-Turbines in Turbine Mode of Operation
(Doctoral theses at NTNU;2016:202, Doctoral thesis, 2016)Reversible pump-turbines, with their steep and s-shaped characteristics, have proven throughout history to be a challenge with regards to both stability and transients. The aim of this thesis is to increase our understanding ... -
Dynamic building stock modelling: Application to 11 European countries to support the energy efficiency and retrofit ambitions of the EU
(Journal article; Peer reviewed, 2016)A dynamic building stock model is applied to simulate the development of dwelling stocks in 11 European countries, over half of all European dwellings, between 1900 and 2050. The model uses time series of population and ... -
Dynamic building stock modelling: General algorithm and exemplification for Norway
(Journal article; Peer reviewed, 2016)This paper presents a model based on dynamic material flow analysis, general in its principles and applied to the dwelling stock of Norway for exemplification. The algorithm at the core of the model is presented in the ... -
Dynamic energy system with a local LTTG at Leangen
(Master thesis, 2020)Denne masteroppgaven er en fortsettelse av en tidligere prosjektoppgave og evaluerer bruken av spill-varmekilder for å lage varmtvann til et leilighetsområde. Hovedfokuset er på en oversvømmet fordamper og en CO2 varmepumpe ... -
Dynamic load on a Francis turbine runner from simulations based on measurements
(Journal article; Peer reviewed, 2014)The frequency of the Nordic power grid has become more volatile during recent years. This gives rise to two effects in synchronous machines. Firstly, as grid frequency changes the rotational speed of synchronous machines ... -
Dynamic load on High Head Francis turbines during start/stop
(Master thesis, 2014)Pressure measurements were performed on the Francis runner in the Waterpower laboratory at NTNU. These measurements were divided into start and stop procedures, with the generator on or off. The suggested method that was ... -
Dynamic loads on Francis turbines
(Master thesis, 2016)New installations of unregulated power to the electrical grid have led to more fluctuations in the grid frequency. Hydropower plants with large reservoirs can provide services to balance the frequency by increasing or ... -
Dynamic Loads on Francis Turbines: An Experimental Study
(Doctoral theses at NTNU;2019:64, Doctoral thesis, 2019)There is an increasing need for stable and flexible renewable energy. This calls for better lifetime predictions for Francis runners, which in turn requires more knowledge on the dynamic loads on the runner blades. This ... -
Dynamic Loads on Tidal Turbine Blades
(Doctoral thesis at NTNU;2016:213, Doctoral thesis, 2016)Tidal turbines convert kinetic energy from tidal currents into electricity in a similar way as wind turbines extract energy from wind. The wind energy industry being more developped, tidal turbine designers use therefore ... -
Dynamic metabolism modeling as a decision-support tool for urban water utilities applied to the upstream of the water system in Oslo, Norway
(Journal article; Peer reviewed, 2014)The paper presents, first, the ‘Dynamic Metabolism Model’ (DMM), developed by the authors, followed by an application to the city of Oslo, capital city of Norway. The time period considered for the analysis is 2013-2043. ... -
Dynamic model of a small scale concentrating solar cooker with rock bed heat storage
(Peer reviewed; Journal article, 2016)This study presents a dynamic model for a concen-trating solar energy collector with an integrated rockbed heat storage system. The model is based onnumerical integration of a set of conservation equa-tions for mass, ... -
Dynamic Modeling and Process Simulation of Steam Bottoming Cycle
(Master thesis, 2017)In this work, a flexible combined heat and power plant with a steam Rankine bottoming cycle is proposed as a suitable alternative for the power generation system of an oil and gas offshore facility. The power system should ... -
Dynamic modeling of local district heating grids with prosumers: A case study for Norway
(Journal article; Peer reviewed, 2018)District heating (DH) will play an important role in the future fossil-free energy systems by enabling increased utilization of waste heat and renewable heat sources to cover buildings' heat demand. A prerequisite for this ... -
Dynamic Modelling and Characterisation of a Solid Oxide Fuel Cell Integrated in a Gas Turbine Cycle
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:176, Doctoral thesis, 2005)This thesis focuses on three main areas within the field of SOFC/GT-technology: • Development of a dynamic SOFC/GT model • Model calibration and sensitivity study • Assessment of the dynamic properties of a SOFC/GT power ... -
Dynamic modelling and simulation of the Graz Cycle for a renewable energy system
(Peer reviewed; Journal article, 2024)Critical atmospheric carbon dioxide levels and, in response, an increasing shift toward variable renewable energy sources causes the need of transient operation for thermal power plants coupled with carbon capture and ...