This report presents a macroeconomic analysis of two scenarios that examine the role of waste-to-energy (WtE) and municipal solid waste (MSW) management systems in a circular economy. Using a trajectory interindustry model, the study assesses how shifts in household consumption patterns and...
The physics of flow around straight and curved cylinders in tandem is investigated by means of direct numerical simulations (DNS), for transitional and turbulent flow regimes. For straight tandem cylinders in the reattachment regime, the effect on the gap and wake flow of transition to turbulence in...
Abaqus is a software system for finite element analysis. It comes with standard elements which can be used for solving problems based on established theory. In addition to the standard elements, Abaqus offers a possibility for the user to write their own elements, so-called user-defined elements...
This document is an outcome of the SEP‐project Sustainable IoT. We summarize our experiments comparing energy harvesting from Photo Voltaic (PV) elements and RF signals. We have measured supercapacitor charging using different PV elements. The efficiency of rectifiers is critical for RF harvesting...
This study applies optimization methods from hydrocarbon extraction to CO₂ injection, focusing on well placement in the Smeaheia aquifer—a key carbon storage candidate near the Troll field, Norway. Using the Pflotran-OGS simulator, we optimize injection well locations based on Net Present Value (NPV...
Quantification of reservoir properties and reservoir properties changes over time through the recording of geophysical monitoring data has been a long-standing challenge. This quantification step relies on accurate and flexible rock physics models and depends on the sensitivity of the geophysical...
The Portable Active Seismic Source (PASS) developed by the University of Tokyo was utilized during a feasibility study of CO2 injection and migration monitoring at the Svelvik CO2 Field Lab in Norway. This campaign marked the first use of PASS as a Vertical Seismic Profile (VSP) source, in addition...
Depleted gas fields offer significant potential for CO₂ storage, but injecting CO₂ into such fields presents challenges due to cooling effects near the wellbore. This cooling arises from adiabatic expansion of CO₂ during pressure drop, which can lower temperatures below 10 °C and cause CO₂-hydrate...
This study aims to enhance the accuracy of seismic data interpretation for carbon capture and storage (CCS) projects. By integrating laboratory measurements with theoretical models, the research addresses the limitations of traditional models in predicting CO₂ behavior in subsurface reservoirs. Key...
Carbon capture, utilization, and storage (CCUS) plays a vital role in reducing CO₂ emissions. Effective CO₂ storage requires reliable monitoring to track plume movement and detect leaks. Cross-well seismic imaging is a promising approach, offering high-resolution insights by capturing transmitted...
The Svelvik CO2 Field Lab (SFL), located in Svelvik, Norway, is a pioneering research facility dedicated to advancing CO2 storage technologies. It provides a controlled environment for studying CO2 behavior in subsurface formations, enabling small-scale field experiments to validate safe and...
This study focuses on developing a robust method for determining contact angles within porous media based on direct geometric determination of local contact angles where we explore two primary approaches: directly measuring the angle at three-phase contact lines and using image recognition/machine...