Blar i Institutt for energi og prosessteknikk på tittel
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Numerical simulation of thermal environment at different relative humidity levels in one operating room of St. Olav’s hospital
(Journal article, 2021)This study investigated the influence of three different levels of relative humidity, 20%, 40%, and 60% on the thermal comfort of surgical patient and staff in one operating room of St. Olav’s hospital with mixing ventilation. ... -
Numerical simulation of transient behavior of wood log decomposition and combustion
(Doctoral theses at NTNU;2018:280, Doctoral thesis, 2018)Heat from wood combustion in domestic wood stoves is a main contributor to the bioenergy in Norway. However, wood combustion in such small-scale combustion appliances can cause significant emissions, e.g. fine particulate ... -
Numerical simulations andexperimental studies for nasaldelivery of vaccines and drugs
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:64, Doctoral thesis, 2012) -
Numerical simulations of combustion near solid and hydrogen permeable walls
(Doctoral theses at NTNU;2021:306, Doctoral thesis, 2021)The goal of the present thesis was to investigate a selective and isothermal, chemically inert hydrogen-permeable or porous wall boundary condition to laminar flame simulations to understand the flow physics of near-wall ... -
Numerical simulations of fluid flow and particle deposition in a cascade impactor
(Master thesis, 2022)Iceland Deep Drilling Project (IDDP) er et prosjekt som sikter seg inn på å forbedre prosessen og øke potensialet til geotermisk energi ved hjelp av varmeutvinning av fluider langt nede i jordskorpen. Disse fluidene har ... -
Numerical Simulations of Shell-Side Two-Phase Flow in Spiral-Wound Heat Exchanger - for Natural Gas Liquefaction
(Master thesis, 2015)Heat transfer coefficients and pressure drop of evaporating heat exchangers such as the spiral wound heat exchanger depend on the distribution of the refrigerant fluid. However little open research is available in the study ... -
Numerical simulations of staged biomass grate fired combustion with an emphasis on NOx emissions
(Peer reviewed; Journal article, 2015)In the present paper NOx emissions from biomass combustion was studied, with the objective to demonstrate the applicability of stationary computational fluid dynamics simulations, including a detailed representation of the ... -
Numerical solution of cahn-hilliard system by adaptive least-squares spectral element method
(Journal article, 2018)There is a growing interest in the phase-field approach to numerically handle the interface dynamics in multiphase flow phenomena because of its accuracy. The numerical solution of phase-field models has difficulties in ... -
Numerical Solutions of Three- Dimensional Von Kármán and Bödewadt Heat and Fluid Flow Problems
(Doctoral theses at NTNU;2018:77, Doctoral thesis, 2018) -
Numerical Solvers for Transient Two-Phase Flow
(Doctoral Theses at NTNU, 1503-8181; 2013:202, Doctoral thesis, 2013)Certain numerical methods have been well developed for solving one-dimensional two-phase flow (e.g. gas and liquid) problems in the literatures during the last two decades. Based on the existing methods, the present work ... -
Numerical studies of particle clustering in circular cylinder wake flows
(Doctoral theses at NTNU;2022:51, Doctoral thesis, 2022)The emphasis of this thesis is to investigate how inertial point particles are clustered and dispersed in the wake of a circular cylinder with an uniform free stream. The numerical simulations that directly solved Navier-Stokes ... -
Numerical study of a Francis turbine over wide operating range: Some practical aspects of verification
(Peer reviewed; Journal article, 2020)Hydropower plays an essential role in maintaining energy flexibility. Modern designs focus on sustainability and robustness using different numerical tools. Automatic optimization of the turbines is widely used, including ... -
Numerical study of curved-mesh tailoring of free-surface shear profile
(Master thesis, 2019)Krummede nettinger blir ofte brukt til å endre hastighetsprofilet i testområdet i eksperimentelle anlegg. De eksisterende uttrykkene som kan brukes til å bestemme formen på nettingen, gitt strømningsforholdene opp- og ... -
Numerical study of flow calming structures in hydropower plants
(Master thesis, 2021)For å forlenge livsløpet til hydrauliske turbiner er det nødvendig å minimere skader forårsaket av sedimentslitasje. En mulig løsning er å forbedre sandfanget for å redusere mengden sedimenter som når turbinene. I dette ... -
A Numerical Study of Flow Structures and Flame Shape Transition in Swirl-Stabilized Turbulent Premixed Flames Subject to Local Extinction
(Peer reviewed; Journal article, 2023)Large Eddy Simulations (LES) of turbulent lean-premixed flames of V and M-shape are presented. A simple algebraic closure with the ability to capture finite-rate chemistry effects is used for subgrid reaction rate modeling. ... -
Numerical Study of Hydrocarbon Charge Reduction Methods in HVAC Heat Exchangers
(Peer reviewed; Journal article, 2021)Required refrigerant charge in heat pump systems with propane is analyzed. Two systems are compared: The first a direct heat pump, with fin-and-tube heat exchangers, and the second an indirect system, with plate heat ... -
Numerical study of hydrogen adsorption
(Master thesis, 2012)The main objective of this thesis is to describe the transient thermodynamics during physisorption of hydrogen gas using a commercial numerical software.Simulations of thermal effects during adsorption are valuable tools ... -
Numerical Study of Hydrogen Inhibition of Char
(Master thesis, 2015)It has been known for a long time that hydrogen in the gas phase tend to inhibit gasification of char at low and intermediate temperatures. At higher temperatures, however, there are indications that hydrogen may speed up ... -
Numerical Study of Hydrogen Inhibition of Char Gasification Using Detailed Hetero- and Homogeneous Chemical Kinetics
(Journal article; Peer reviewed, 2016)It has been known for a long time that hydrogen in the gas phase tends to inhibit gasification of char at low and intermediate temperatures. At higher temperatures, however, there are indications that hydrogen may speed ... -
Numerical study of particle settlement in a sand trap with multiple flow calming structures
(Master thesis, 2023)Et tradisjonelt sandfang i et vannkraftverk reduserer strømningshastigheten slik at sedimenter som transporteres kan skilles ut fra vannet. For å minimere turbinerosjon forårsaket av partikler er det nødvendig å optimere ...