Browsing USN Open Archive by Author "Pfeiffer, Carlos"
Now showing items 1-10 of 10
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An approach to optimal control of snow melting systems
Lybekk,Tim Cato Bergdølmo (Master thesis, 2022)Snø smelte systemer har blitt vanligere benyttet for å smelte snø og is fra områder rundt kommersielle bygg. Snø smelte systemer installeres normalt sammen med Varme, Ventilasjon, og sanitær systemer(VVS). Snø smelte ... -
Analysing uncertainty in parameter estimation and prediction for grey-box building thermal behaviour models
Brastein, O.M.; Ghaderi, Ali; Pfeiffer, Carlos; Skeie, Nils-Olav (Peer reviewed; Journal article, 2020)The potential reduction in energy consumption for space heating in buildings realised by the use of predictive control systems directly depends on the prediction accuracy of the building thermal behaviour model. Hence, ... -
Batchwise Dosing Controller
Skeie, Isak (Master thesis, 2024)A new controller scheme is developed for raw material dosing in pellet production.More specifically, in fish feed production with testing and implementation in a Frenchplant. The proposed controller aims to adress a number ... -
Development of Predictive Machine Learning Algorithm for Energy Usage in Buildings
Guldberg, Øystein (Master thesis, 2023)A model for energy usage forecasting can be a tool to help reduce the energy consumed by buildings, and thereby also reduce both the energy costs and carbon footprint of buildings. In order to create a good prediction ... -
Evaluation of Machine Learning Algorithms for Flow Rate Estimation in Oil and Gas Industry
Dsouza, Neville Aloysius (Master thesis, 2024)Accurate measurement of flow rate of the multiphase flow of oil, gas and water from the oil wells, is an important part of the oil and gas industry. This enables the safe operation and proper optimization of the production. ... -
Optimal Scheduling for Mobile Battery Charging Systems
Wagle, Dhanush (Master thesis, 2022)A pilot project in Norway is currently being examined to give electric energy to construction sites in places where connection to the power grid is not available. This thesis proposes a generic mobile battery charging ... -
Parameter Estimation for a Gas Lifting Oil Well Model Using Bayes' Rule and the Metropolis–Hastings Algorithm
Ban, Zhe; Ghaderi, Ali; Janatian, Nima; Pfeiffer, Carlos (Peer reviewed; Journal article, 2022)Oil well models are frequently used in the oil production process. Estimation of unknown parameters of these models has long been a question of great interest in the oil industry field. Data collected from an oil well ... -
Physics-Informed Gas Lifting Oil Well Modelling using Neural Ordinary Differential Equations
Ban, Zhe; Pfeiffer, Carlos (Peer reviewed; Journal article, 2023)Modelling of oil well systems is important for a wide range of petroleum scientific and oil industrial processes. Considering the uncertainty of the measurements and the demand for empirical knowledge, a purely first-principle ... -
A review on techno-economic assessment of solar water heating systems in the middle east
Dehghan, Mehran; Pfeiffer, Carlos; Rakhshani, Elyas; Bakhshi-Jafarabadi, Reza (Peer reviewed; Journal article, 2021)Currently, the economy of Middle Eastern countries relies heavily on fossil fuel sources. The direct and indirect adverse consequences of fossil fuel utilization for power generation enforce the region’s countries to raise ... -
Spesifisering av et maskinlærings operasjonaliseringsrammeverk, forbedring og generalisering av maskinlæringsmodeller for eksenterskruepumper på Den Magiske Fabrikken
Holm, Martin (Master thesis, 2022)En av prosessdelene på Den Magiske Fabrikken bruker eksenterskruepumper, disse blir må ofte bli byttet ut og er kostbart. For å redusere antall erstatninger og heller øke mengde reperasjoner med slitedeler er det ønskelig ...