Blar i Institutt for elektro, IT, og kybernetikk på tittel
Viser treff 224-243 av 287
-
Real-time monitoring of enhanced biological phosphorus removal in a multistage EBPR-MBBR using a soft-sensor for phosphates
(Peer reviewed; Journal article, 2020)Enhanced biological phosphorus removal (EBPR) from municipal wastewater has been achieved in a multistage Moving Bed Biofilm Reactor (MBBR) configuration. The process operations can be further optimized by real-time ... -
Recruiting competence from vocational schools : paradise regained?
(Conference report, 2004)After a period of declining student enrolment, in 2002 Telemark University College (TUC) took advantage of vocational schools reforms to establish a three years bachelor programme in electrical engineering for a pilot ... -
Recruiting engineering students from vocational school
(Conference report, 2003)By the consent of the Norwegian Ministry of Education and Research, Telemark University College (TUe), Porsgrunn, Norway, this fall semester started a pilot class in electrical engineering recruiting solely from vocational ... -
Reduced PCR/PLSR models by subspace projections
(Journal article; Peer reviewed, 2006)Latent variables models used in principal component regression (PCR) or partial least squares regression (PLSR) often use a high number of components, and this makes interpretation of score and loading plots difficult. ... -
Relaxed Ziegler-Nichols closed loop tuning of PI controllers
(Journal article; Peer reviewed, 2013)A modification of the PI setting of the Ziegler-Nichols closed loop tuningmethod is proposed. The modification is based on a combination of the Skogestad SIMCtuning formulas for ´´integrator plus time-delay´´ processes ... -
Review of simulator training practices for industrial operators: How can individual simulator training be enabled?
(Journal article; Peer reviewed, 2019)The aim of simulator training is to improve the safety and integrity of operations. Effective simulator training involves relevant feedback and sound assessment of the operator’s performance. Operators need proper feedback ... -
A review on techno-economic assessment of solar water heating systems in the middle east
(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 ... -
Rheological characterization of non-Newtonian Drilling Fluids with non-invasive Ultrasonic Interrogation
(Journal article; Peer reviewed, 2017)The drilling process is generally costly and time consuming and prone to serious hazards. Cost-efficiency and enhanced safety measures are vital for any drilling operation. Recent studies indicate that poor reliability in ... -
A robust model predictive control with constraint modification for gas lift allocation optimization
(Peer reviewed; Journal article, 2023)This paper presents a novel approach for implementing a robust real-time optimization framework under the presence of parametric uncertainty. Conservativeness is an inevitable drawback of a robust control approach. Therefore ... -
Robust PI controller design for frequency stabilisation in a hybrid microgrid system considering parameter uncertainties and communication time delay
(Peer reviewed; Journal article, 2019)One of the major issues in the operation of an islanded microgrid is the frequency deviations caused by the variation of power production coming from non-dispatchable renewable energy sources. Using an appropriate control ... -
Second Order KP Scheme for the Solution of flow in a Venturi Channel
(Journal article; Peer reviewed, 2018)In many different applications, a Venturi channel is used as a tool to compute fluid flow rates. The Saint-Venant equation is a hyperbolic type Partial Differential Equation (PDE) which can be used to model fluid flows ... -
Second order scheme for open channel flow
(Professional article, 2015-08-26)In the search for a numerical scheme which: (i) is semi-descrete in nature (only space discritization) so that built-in ODE solvers in MATLAB or Modelica can be used, (ii) can handle dry bed conditions (island or dry ... -
Security Constrained Unit Commitment and Economic Dispatch by AC Sensitivity Factors
(Chapter, 2022)The dispatch schedule of the electrical power plant units is the result of the solution to the unit commitment optimisation problem, and it minimises the cost of production considering pre-defined technical limits. The ... -
Selection methodology of energy consumption model based on data envelopment analysis.
(Journal article; Peer reviewed, 2017)The energy efficiency monitoring methods in industry are based on statistical modeling of energy consumption. In the present paper, the widely used method of energy efficiency monitoring “Monitoring and Targeting systems” ... -
Sensor placement and parameter identifiability in grey-box models of building thermal behaviour
(Journal article; Peer reviewed, 2019)Building energy management systems can reduce energy consumption for space heating in existing buildings, by utilising Model Predictive Control. In such applications, good models of building thermal behaviour is important. ... -
Short-Term Production Optimization for Electric Submersible Pump Lifted Oil Field With Parametric Uncertainty
(Peer reviewed; Journal article, 2023)This paper uses a scenario-based optimization method to address the Daily Production Optimization from an Electric Submersible Pump lifted oil field under the presence of uncertainty. The primary contribution of this work ... -
Simulation of the Pyrolysis Process: from Plastic Waste to Environmental Friendly Fuel
(Journal article; Peer reviewed, 2018)How to deal with plastic waste is an important question, as it may affect both the climate and environment. A method that may be beneficial to dispose some kinds of plastic waste that cannot be material-recycled is ... -
Simulation of Transcritical Flow in Hydraulic Structures
(Journal article; Peer reviewed, 2015-11-25)In hydraulic engineering, transcritical flows are often required in some applications. One example is in a Venturi channel where the occurrence of critical depth is used to estimate flow rate in the channel. In this paper, ... -
Simulations and real applications of PI and MPC averaging level control in a water resource recovery facility
(Journal article; Peer reviewed, 2018)The basin level control system in an existing wastewater treatment plant is designed for two different operation modes: compliant level control for smooth pump flow, and stiff level control. Both a model-based predictive ... -
Small scale arc fault testing of medium voltage metal enclosed switchgear
(Journal article; Peer reviewed, 2016-03-16)Internal arc fault tests are important for ensuring the safety of medium-voltage metal-enclosed switchgears. Since these tests are conducted at full scale, the costs of the test objects as well as the high-power laboratory ...