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- PostEvaluating the anti-icing performance of Hydronic Heating system in pedestrian pavement(2024) Ali, Aboobakkar Nakeeb; Salian, Mokshith Yadava; Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Johansson, Pär; Mirzanamadi, RahebThis thesis explores the performance and feasibility of using Hydronic Heating Pavement (HHP) systems for anti-icing and solar energy harvesting on pedestrian pathways and roadways. Two test sites were selected for analysis: the E18 motorway in Östersund and a pedestrian pathway in Gothenburg. The study employed numerical modeling using COMSOL Multiphysics 6.2 to simulate surface temperatures and assess energy requirements. Data including air temperature, dew point, wind speed, precipitation, and radiation were collected from local sources and used to validate the models. The numerical simulations demonstrated that, without heating, the road surface in Östersund experienced up to 2,121 hours of slippery conditions annually, whereas the installation of heating pipes reduced this to 332 hours in Gothenburg’s pedestrian pathway. The annual energy required for anti-icing the pedestrian pathways was calculated to be 62.4 kWh/m²/year, with a mean heat flow of 481.3 W/m from a single pipe. Sensitivity analysis revealed that factors such as pipe distance, thermal conductivity, and fluid temperature significantly impacted system performance. For instance, increasing the pipe spacing doubled the number of slippery hours, while higher thermal conductivity and absorptivity reduced them. Comparisons between roads and pedestrian pathways showed that pedestrian pathways required significantly less energy (seven times lower) due to their narrower width. The results indicate that solar energy harvesting alone is more than sufficient to meet the system’s energy requirements, providing up to five times the total annual energy needed when optimized during the summer months. This study concludes that the hydronic heating pavement system demonstrates significant potential in enhancing safety and minimizing icy conditions on pedestrian pathways. Furthermore, the renewable solar energy harvested is capable of fully supporting the operation of HHP system without any additional inputs.
- PostThe cinematic space: How to use cinematography as a design tool in architecture(2024) Bergman, Sara; Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Norell, Daniel; Christensson, PeterWithin the cinematic universe, colour, lighting, framing, and composition are important narrative tools used deliberately to transport the viewer from the real world into the cinematic one. In films, these techniques are used to steer our emotions and help us relate to the themes of the film. So, why do architects rarely use these tools to help people understand and relate to their designs? This master’s thesis explores the parallels between cinematography and architecture by examining how cinematic principles can be used as design tools in architecture and architectural representation. By using principles such as framing, composition, colour theory, lighting, and storytelling, the intention was to determine how these could influence the architectural design process. Connections between the visual language of film and architecture were drawn to strengthen the argument that cinematography is a beneficial design tool that should be used by architects. The theories were manifested into design through a speculative approach where an old industrial building in Gamlesta den, Gothenburg, was transformed into a cinema using cinematographic methods. This transformation revealed how cinematic elements strengthen the phenomenological aspects of architecture and contribute to a more im mersive and meaningful architectural experience. One central argument for this thesis is that storytelling is a crucial and useful part of architecture and representation that is often dismissed or forgotten. Storytelling has the potential to impact our spatial perception by focusing on how human narratives instil meaning in the built environment, breathing life into architecture. It shifts the focus from the building itself to the human per ception of it and the lived experience. Understanding the relationship between architecture and cinematography, provides new perspectives on how cinematography, when integrated into the design process, can enrich architecture, and create more immersive and emotionally resonant built environments. This research is relevant to anyone within the fields of architecture interested in pushing the boundaries of tradi tional design methodologies.
- PostRooted: Catalysing regenerative low impact development in Corrwall(2024) Uhren, Axel; Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Thuvander, Liane; Hagy, SheaIn the context of urgent socio-economic and environmental challenges in Cornwall, UK, the planning policy AL1 was introduced in 2023, aiming to promote socio-ecological resilience. It facilitates the transformation of agricultural holdings into residential land, with the condition that applicants demonstrate successful design and maintenance of Regenerative Low Impact Developments (RLIDs). These developments seek to support a local, self-sufficient, and environmentally conscious lifestyle, while also responding to the need for affordable housing and economic diversity. Despite AL1’s promising objectives, applicants face potential challenges in accessibility, including the policy’s stringent requirements, a lack of guidance and training in regenerative practices, as well as financial constraints and insufficient access to farmland. AL1 is largely based on its predecessor, the Welsh One Planet Development policy (OPD), introduced in 2010. Studies of the success of this policy suggest that AL1’s lack of accessibility could hinder the policy’s appeal beyond a narrow demographic of already climate-conscious and financially secure applicants. This research aims to tackle planning policy AL1’s potential shortcomings and support its effective implementation to foster socio-ecological resilience in Cornwall. The methodology combines a literature review to gather insights into the policy’s potential and limitations, with semi-structured expert interviews providing local perspectives on AL1’s strengths, barriers, and its role within the broader context of the region’s socio ecological resilience. In response to these findings, a practical guide is developed, aiming to support wider adoption of regenerative lifestyles in Cornwall and enhance policy AL1’s successful implementation. This guide is then applied to a specific agricultural site and tested by creating an RLID concept design. While context-specific, the findings of this research hold broader implications for similar challenges worldwide, aiming to inspire positive change and promote the widespread adoption of RLIDs beyond Cornwall.
- PostFeasibility study on electric load adjustment for Rya Wastewater Treatment Plant(2024) RIFAD, Abdulla; KALLUVAYAL BHASKARAN, Sivani; Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Wilén, Britt-Marie; Wilén, Britt-MarieThis thesis investigates the feasibility of adjusting the electric load at the Rya wastewater treatment plant (WWTP), operated by the municipal company Gryaab AB in Gothenburg, Sweden, with the goal of reducing electricity usage momentarily and contributing to the local flexibility market, Effekthandel Väst (EHV). The Rya WWPP consumes approximately 240 GWh of electricity annually, of which most of the electricity is used for inlet pumping and aeration in the activated sludge process, accounting for 70% of the total consumption. As Gothenburg prepares for potential electricity shortages in the years ahead, this study focuses on momentarily reducing electricity usage during the peak hours (morning and evening) through short term and long-term flexibility measures. Flexibility refers to the ability to adjust electricity usage in response to market conditions or grid demands, either by reducing consumption or shifting it to different times. By analysing historical electricity usage data, the report evaluates different scenarios where Gryaab can participate in Effekthandel Väst by momentarily halting the operations or shifting the electricity demand to off-peak hours/periods. Results show that momentary shutdowns of key processes, can lead to significant reductions in electricity consumption. The study compares the financial and operational impacts of short-term versus long-term flexibility. While short-term flexibility offers immediate responses to market conditions and financial benefits, long-term flexibility provides consistent savings and aligns with strategic goals. The findings highlight the socio-economic and environmental benefits of Gryaab’s participation in Effekthandel Väst, including momentary reduced energy consumption and enhanced grid stability. The study concludes that optimised electricity management at the WWTP not only supports Gothenburg’s sustainability targets but also offers substantial cost-savings opportunities during high demand periods.
- PostOptimization of a battery thermal management system: Master’s thesis in Sustainable Energy Systems(2024) Khan, Osaid Mohammad Nasir; Mudliyar, Satyanarayanan; Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Chalmers tekniska högskola / Institutionen för arkitektur och samhällsbyggnadsteknik (ACE); Dalenbäck, Jan-OlofThis master’s thesis focuses on the Active Cooling Unit (ACU), a vital component used by Volvo Penta to maintain optimal thermal conditions in battery systems across various applications, including electric on-road, off-road, and Battery Thermal Management System (BTMS) solutions. The ACU employs a secondary loop with a glycol-water mixture as the coolant for heat transfer, effectively separating the refrigerant from the battery cooling circuit. The ACU is critical for ensuring traction batteries operate within their ideal temperature range. Proper thermal management is essential for safe and durable battery performance, enabling quick charging, efficient energy storage, and reliable power delivery. This research investigates the current BTMS, aiming to optimize the thermal performance of the ACU. Key areas of focus include improving heat transfer across components, utilizing waste heat to reduce operational costs, and enhancing overall energy efficiency. The study explores and evaluates the use of internal heat exchangers, demonstrating that modifying the cooling circuit and better controlling heat dissipation can significantly improve system efficiency. The findings of this study have broad applicability in industrial and marine sectors and offer scalable solutions for diverse energy delivery needs, contributing to more sustainable and efficient thermal management practices.