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Christofer Silfvenius

Publications and source records attributed to Christofer Silfvenius.

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Human-Centric and Integrative Lighting Asset Management in Public Libraries: Qualitative Insights and Challenges from a Swedish Field Study

Traditional lighting source reliability evaluations, often covering just half of a lamp's volume, can misrepresent real-world performance. To overcome these limitations,adopting advanced asset management strategies for a more holistic evaluation is crucial. This paper investigates human-centric and integrative lighting asset management in Swedish public libraries. Through field observations, interviews, and gap analysis, the study highlights a disparity between current lighting conditions and stakeholder expectations, with issues like eye strain suggesting significant improvement potential. We propose a shift towards more dynamic lighting asset management and reliability evaluations, emphasizing continuous enhancement and comprehensive training in human-centric and integrative lighting principles.

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Some Critical Thinking on EV Battery Reliability: from Enhancement to Optimization -- comprehensive perspectives, lifecycle innovation, system cognation, and strategic insights

In the era of sustainable transportation, the significance of electric vehicles (EVs) and their battery technology is becoming increasingly paramount. This study addresses the critical aspect of EV battery reliability, an essential factor in the vehicles' sustainability, performance, and longevity. Current efforts to enhance EV battery reliability tend to focus on isolated areas, often missing the broader, interconnected challenges within the system. This research investigates these challenges across micro, meso, and macro levels, presenting a novel lifecycle framework that includes "Zero"-Life reliability and phases such as use, reuse, repurpose, and recycling. By adopting a holistic approach and delving into system cognition, the study aims to bridge the gap between isolated improvements and comprehensive system optimization, aligning with global sustainability goals and contributing to the advancement of sustainable transportation and EV technology.

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