The effect of uncertainties on the performance of real-time control of urban drainage systems

REAL-time control (RTC) is a technique used to dynamically control urban drainage systems to utilise the existing infrastructuremore optimally. It can be used to achieve a number of objectives aiming to improve the functioning of the urban drainage system, typically through the reduction of pollution. When heavy rainfall occurs, combined sewer...

Ampacity Estimation of Medium Voltage Cables for Changing Load Profiles and Uncertain Site Conditions

Climate agreement goals set by the Dutch government increase the urge to reduce our greenhouse gases. To fulfil these goals on a residential level a reduction of the emission of carbon which is produced during household demand and transportation (commute) is required. On a residential level, the amount of photovoltaic systems (PV) and electric...

Will the Benefits Keep Flowing?: Analysing the Effects of an Uncertain World on the Objectives of the Akosombo Dam

The Akosombo dam in Ghana's Lower Volta River Basin provides essential economic benefits through hydropower generation, flood protection, and irrigation opportunities. However, since its construction was completed in 1965, the livelihood of the riverine communities drastically changed. The seasonal peak and low flows in the river, which provided...

Optimal placement of green, blue and yellow roofs under uncertainty: Maximizing the societal benefits for a municipality

Climate change challenges the resiliency of our cities, and lack of spaces in densely paved areas makes it impossible to implement adaptation and mitigation strategies on the street level. However, buildings have often unused roofs, which can be converted into sustainable roofing options. Green roofs are systems which allow for the growth of...

Decision Support for Port Investments: A Real Options Approach

Expansions for future demand? How much capacity will be required? Until when the decision can be postponed? When to expand? What should be the magnitude of expansion? What is the position of such an investment? These are the kind of questions which a port authority is subjected to while making a decision to expand or develop a port. The decision...

Uncertainty of a RMS Power Detector

The accuracy of a true-RMS detector board based on the Analog Devices LTC5596 is determined by measuring the input power and the output voltage. A number of samples of the output voltage is taken and the mean and standard deviation is shown. These measurements are done for single-tone excitation with a direct connection and over-the-air setup,...

An analytical approach of Uncertainty Propagation for Sensitivity Analysis of Life Cycle Assessment

Life Cycle Assessment (LCA) models are inherently uncertain due to the model structure interacting with the model inputs and modeling choices. The methods of sensitivity analysis (SA) aim at retracing the causes of the uncertainty of the results of a model. This work takes apart the methods of uncertainty propagation, SA, and LCA, and identifies...

Quantifying parameter uncertainty in predictions of coastal mega-nourishments: A case study on the Sand Engine at the Dutch coast

Continuous sea level rise and growing environmental awareness have led to increasing implementation of nature-based solutions to counter coastal erosion. An example in the Netherlands is the Sand Engine---a mega-scale sand nourishment designed to feed the Dutch coast over a period of 20 years. For such designs to work, a good understanding of...

Voltage Regulation on High PV penetrated Distribution system using Electric Vehicles

The penetration of renewable energy sources is increasing every year and that poses a lot of challenges in the distribution system. Since they are intermittent in nature, they cannot serve the energy demand as stand alone sources without the help of storage technologies or stable energy sources. As the RES, especially the Photo Voltaic...

Robust energy production optimization of a wind farm using wake steering by calibrating the FLORIS model on SCADA data

Wind farms experience significant efficiency losses due to the aerodynamic interaction between turbines. A possible control technique to reduce these losses to a minimum is yaw-based wake steering. This thesis investigates the feasibility of this technique by calibrating a surrogate model called the FLOw Redirection and Induction in Steady-state...

Reducing Measurement Uncertainty of Temperature Coefficients of Photovoltaic Modules

In temperature coefficient measurements of PV modules, a low level of agreement in results is observed between different laboratories, with deviations up to ±10% for Pmax temperature coefficients. Such deviations are considered as an uncertainty component in PV energy yield assessments, and are seen as financial risk by investors and purchasers....

Reservoir Simulation for Play-based Development of Low Enthalpy Geothermal Resources: Application to the Delft Sandstone

As implementation of deep geothermal energy projects in the Netherlands increases, reservoir simulation for these geothermal systems stands to play a key role in understanding how these systems will behave and how large scale projects can be optimised to save cost and reduce risk. In this thesis, an extensive simulation study has been conducted...

A Multi-Objective Approach for the Analysis of a Water-Food-Ecosystems Nexus at Basin Scale

Load Estimation and Uncertainty Analysis Based on Strain Measurement With Application to Load Sensing Bearing

Rapid growth in automotive sector and stringent safety requirements have led to the need for more sophisticated feedback mechanisms for the vehicle systems. One of the major breakthrough is anticipated with the use of estimated loads with help of a Load Sensing Bearing. Load Sensing Bearing is a concept in which strain is measured on a hub...