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Steam and water chemistry is fundamental for most power generation on indus trial scale. This includes the dosing of chemicals, the monitoring of both water and steam, as well as understanding the underlying causes to diagnose eventual problems. Öresundsverket, which was designed for seasonal operation, now has to perform multiple starts per year and in meeting these demands there is a possi bilit
Fossil fuel companies have shifted from outright climate denial to subtler strategies of delay. These include low-carbon solutions — carbon capture, utilisation and storage (CCUS) and hydrogen — which legitimise and extend fossil fuel dependency. This study examines how low-carbon discourses operate through the media in Singapore, a major refining and petrochemical hub with an authoritarian state-
This thesis tries to examine distributional spatial equity in accessibility to green infrastructure and essential services across DeSO areas in Malmö municipality, Sweden, in 2022. The study investigates how accessibility varies spatially in relation to public parks, public transport stops, schools, and healthcare facilities, and evaluates whether accessibility advantages and disadvantages are dis
This thesis examines how autonomous buses are interpreted and evaluated as a potential mobility solution within a multi-level planning context involving both municipal and regional perspectives. While autonomous vehicles are often framed as a key component of future sustainable transport systems, their implementation depends not only on technological development but also on social acceptance, inst
This thesis aims to address a dual crisis. Globally, the construction industry relies on a linear “take-make-dispose” approach and a “tabula rasa” tactic in each novel project, draining the Earth’s resources. Locally, around a half of residential buildings in Riga, Latvia, are of Soviet mass housing typology. These structures are on the verge of structural expiration, at risk of progressive collap
This thesis focuses on how changing the combustion chamber geometry in a small two-stroke engine can improve performance. The engine used for this thesis is a Husqvarna AB chainsaw engine with Schn¨urle porting and air-leading stratified scavenging. Four different combustion chambers were subjected to CFD simulations, and from them two were selected for engine testing. In total, five combustion ch
This thesis focuses on how changing the combustion chamber geometry in a small two-stroke engine can improve performance. The engine used for this thesis is a Husqvarna AB chainsaw engine with Schn¨urle porting and air-leading stratified scavenging. Four different combustion chambers were subjected to CFD simulations, and from them two were selected for engine testing. In total, five combustion ch
The construction and real estate sector is a major contributor to global carbon emissions and climate change. Ventilation systems, although essential for maintaining indoor air quality and occupant health, account for a significant share of building operational emissions. In HVAC systems, duct layouts significantly influence ventilation impacts through both the embodied carbon from material produc
This thesis examines the secondary exchange of transferable service access on Xianyu, a Chinese C2C platform increasingly used not only for second-hand goods but also for service-related deals among consumers. These include practices such as restaurant proxy ordering, discount-mediated ordering, alternative booking routes, and membership-based privileges. The study explores how participants find,
Solar drying technologies give smallholder farmers in low- to middle-income countries (LMIC) a low-cost way to reduce post-harvest losses and add value to agricultural produce. Yet bringing solar-dried products to market remains poorly understood, particularly in fragmented food systems where structural conditions shape market entry in ways that standard frameworks do not account for. This thesis
Title: Investigating Maintenance Strategy Selection and Performance Measurement Readiness: A Case Study of Tetra Pak Authors: Siri Byrenius & Isa Roslin Supervisor: Joakim Kembro, Associate Professor at the Division of Engineering Logistics, Faculty of Engineering, Lund University Examiner: Ebba Eriksson Ahre, Postdoc at the Division of Engineering Logistics, Faculty of Engineering, Lund Un
Our way of handling the climate crisis is not fast or ambitious enough. We have the opportunity to plan for a better future, not just accept the consequences of our failure. To plan for a better future, we first need to conceptualise a vision of a desired end-point, in this case a climate-neutral and sustainable city. This essay is meant to inspire radical change by using and expanding the radical
Software upgrades are a substantial source of instability in enterprise IT ecosystems. Instabilities are most common during the post-adoption phase, when systems must remain operational while evolving. This thesis examines post-adoption software upgrade instability from a sociotechnical perspective. A sequential explanatory mixed-methods design was adopted. The quantitative analysis identified re
Total evapotranspiration (ET) trends remain highly consistent across FLUXCOM-X-BASE and GLEAM v4.2a, indicating a robust growing-season ET change in northern high latitudes. However, the mechanisms behind this change are less consistent than the total flux suggests. This thesis examines whether vegetation greening explains ET changes, whether ET components compensate for one another, and whether d
This thesis explores experiences of premenstrual syndrome (PMS) and receiving medical treatment for it. Adopting a material-discursive intrapsychic model of thought, the participants' depictions are analyzed through objects, discourses, emotions and internal value systems in order to give various perspectives on PMS as well as contextualize the complex relationship between individual, group, a
Russia’s invasion of Ukraine in 2022 prompted an immediate sanctions response from the European Union (EU). However, this response revealed diverging interests within the EU, since energy sanctions affected member states unevenly. This was particularly visible in the cases of Hungary and Poland, where energy dependence and security concerns differ. Therefore, this research analyses what factors ex
Beer brewing relies on the conversion of starch into fermentable sugars. However, in traditional mashing, 3–37% of starch remains unutilized. This is partly attributed to the protein matrix in barley malt, which traps small B-type starch granules and impedes the breakdown of the starch. This study aimed to investigate if applying hydrodynamic cavitation during mashing improved the conversion of to
Tetra Pak is a world leading food processing and packaging company. Their manufacturing operations often rely on specialized and highly customized equipment. While the purchasing volumes for such equipment are typically low and irregular, the equipment itself is critical for operational continuity. This creates situations of asymmetric dependence where supplier bankruptcy, product discontinuation,
Technical drawings play an important role in many industrial processes, including product development, manufacturing, and lifecycle management, by representing the product definition. The purpose of the study was to investigate which processes influence technical drawing creation and management, what challenges are associated with these processes, and how these challenges can be addressed through
