Blar i Institutt for energi og prosessteknikk på tittel
Viser treff 2415-2434 av 4145
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Material flows and GHG emissions from housing stock evolution in US counties, 2020–60
(Journal article; Peer reviewed, 2021) -
Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement
(Peer reviewed; Journal article, 2022)Roads play a key role in movements of goods and people but require large amounts of materials emitting greenhouse gases to be produced. This study assesses the global road material stock and the emissions associated with ... -
Material system analysis: A novel multilayer system approach to correlate EU flows and stocks of Li-ion batteries and their raw materials
(Peer reviewed; Journal article, 2022)Lithium-ion batteries (LIBs) will play a crucial role in achieving decarbonization and reducing greenhouse gases. If the EU wants to be competitive in the global market of LIBs, it has to ensure a sustainable and secure ... -
Materials for Proton Exchange Membrane water electrolyzer bipolar plates
(Journal article; Peer reviewed, 2017)Titanium based BiPolar Plates (BPPs) are commonly used in Proton Exchange Membrane Water Electrolyzers (PEMWEs) today as they can withstand the harsh operating conditions experienced inside an operating PEM water electrolyzer. ... -
Mathematical and data-driven modelling of case ventilation system
(Master thesis, 2022)Energieffektivisering av bygninger har blitt et stadig viktigere fagområde ettersom at klimabevissthet og energiforbruk har fått mer oppmerksomhet gjennom tidene. En måte å øke energieffektviteten til bygninger er ved å ... -
Mathematical modeling of CO2 based heat pumping systems: New developments for simulation tools to aid the design of systems for non-residential buildings
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:180, Doctoral thesis, 2009)CO2 based heat pumping systems have in recent years received considerable focus world-wide. Now, attention has been turned toward heating and cooling of larger, non-residential buildings. With plate heat exchanger’s now ... -
Mathematical Modeling of Coalescence of Oil Droplets in Water Flow
(Master thesis, 2008)Liquid-liquid coalescers are devices used for increasing the droplet size of the dispersed phase in continuous phase flow, such as oil droplets in water flow. The efficiency of separation technologies is strongly dependent ... -
Mathematical modelling and numerical simulation of two-phase multi-component flows of CO₂ mixtures in pipes
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:296, Doctoral thesis, 2012)In this thesis, the modelling of one-dimensional two-phase flows is studied, as well as the associated numerical methods. The background for this study is the need for numerical tools to simulate fast transients in pressurised ... -
Mathematical Modelling and Simulation of Flow in Collapsible Tubes
(Master thesis, 2022)Obstruktiv søvnapné (OSA) er en tilstand som midlertidig blokkerer luftstrømmen gjennom de øvre luftveiene under søvn for de som er rammet. Denne vanlige tilstanden kan redusere søvn og livskvalitet, og til og med føre til ... -
Mathematical Modelling of Fluid Flows in Pipe Networks
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:120, Doctoral thesis, 2014)The mathematical description of splitting and merging of flows is an important part of a detailed heat exchanger simulation model suitable for studying dynamic and static flow instabilities. This thesis considers one such ... -
Maximum pressure evaluation during expulsion of entrapped air from pressurized pipelines
(Journal article; Peer reviewed, 2017)Pressurized pipeline systems may have a wide operating regime. This paper presents the experimental analysis of the transient flow in a horizontal pipe containing an air pocket, which allows the ventilation of the air after ... -
Måling av egenfrekvenser til sirkulær disk i luft og vann
(Master thesis, 2015)I denne oppgaven har egenfrekvensene til en sirkulær plate og en reversibel pumpeturbin blitt utforsket. Det har blitt testet hvordan de endrer seg i vann med fokus på hvordan avstanden til en stiv overflate påvirker ... -
Måling av pumpevirkningsgrad ved hjelp av termodynamisk metode
(Master thesis, 2009)Målet med denne oppgaven er å måle pumpevirkningsgrad ved hjelp av termodynamisk metode. Termodynamisk metode måler strømningstapene over en hydraulisk strømningsmaskin. For strømningsmaskiner med løftehøyde over 100 m ... -
Måling av pumpevirkningsgrad ved hjelp av termodynamisk metode
(Master thesis, 2009) -
Måling og dokumentering av energiytelser ved passivhus kontorbygning
(Master thesis, 2014)I Norge står bygningsmassen for nærmere 40 % av den totale energibruken og 40 % av materialbruken. Regjeringen har annonsert at de ønsker å skjerpe byggeteknisk forskrift til passivhusnivå i 2015 og nesten nullutslippsnivå ... -
Measured load profiles and heat use for “low energy buildings” with heat supply from district heating
(Journal article; Peer reviewed, 2017)In the development towards nearly zero energy buildings (nZEB) the load profiles for the heat demand and the heat use of the buildings are expected to be changed considerably compared to the situation today. This change ... -
Measurement and analysis of a membrane energy exchanger for energy efficient ventilation
(Master thesis, 2020)Energy recovery is an essential energy-saving measure for buildings with mechanical ventilation. In cold climate, a common issue with the widely used flat-plate heat exchanger is the condensation of moisture in exhaust air ... -
Measurement and Modelling of Thermodynamic Equilibrium and Kinetics of Solid-liquid Phase Transition for Short-chain Alkane Mixtures
(Doctoral theses at NTNU;2018:188, Doctoral thesis, 2018)Wax formation especially in oil and gas industry has been one of the major issues in hydrocarbon processing and transport. The wax consists of hydrocarbon mixtures in solid phase and is do dominted by alkanes. The phase ... -
Measurement methods in turbulent flows
(Master thesis, 2017)In this Master Thesis, the performance of a cobra probe in turbulent flows is investigated. For this purpose, cobra probe was used in two experiments that were done in the Fluid Mechanics building at NTNU.First experiment ... -
Measurement of Pressure Pulsations in Francis Turbines
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:137, Doctoral thesis, 2010)The work presented in this thesis involves preparation and execution of measurements on Francis runners. The measurements were performed by means of onboard measuring equipment both in model runners and full-scale prototype ...