Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PCM-Incorporated Building Envelope for Improving Cost Savings in Residential Buildings Under Cold Climates
In cold climates, residential buildings are often well-insulated to minimize heating costs but may lead to overheating. Incorporating Phase Change Material (PCM) into the building envelope can serve as an effective measure to mitigate overheating while simultaneously reducing cooling costs. However, this PCM application might negatively affect the heating aspects of buildings. In this paper, we explore the effectiveness of PCM in reducing heating costs and identify the optimal design of PCM, e.g., thickness, position, and property. A smart heating control with resetting temperature setpoints in line with EN-ISO 52120 standard is applied. A Norwegian residential building with direct electric heating systems is modelled using IDA ICE 5.0 tool, featuring a PCM module. Results showed that PCM is more effective when incorporated into the interior of external walls compared to roofs. The optimal PCM building envelope design, featuring 75 mm thick PCM with a melting temperature of 21 ℃ in the interior walls, achieved the highest annual cost savings of 18.4% with Spot pricing and 6.1% with Time-of-Use tariff, respectively. The impact of PCM on energy savings varies by season. By utilizing the stored solar heat from the summer, it can potentially have a negative effect on energy savings in spring but a significantly positive effect in autumn.
PCM-Incorporated Building Envelope for Improving Cost Savings in Residential Buildings Under Cold Climates
In cold climates, residential buildings are often well-insulated to minimize heating costs but may lead to overheating. Incorporating Phase Change Material (PCM) into the building envelope can serve as an effective measure to mitigate overheating while simultaneously reducing cooling costs. However, this PCM application might negatively affect the heating aspects of buildings. In this paper, we explore the effectiveness of PCM in reducing heating costs and identify the optimal design of PCM, e.g., thickness, position, and property. A smart heating control with resetting temperature setpoints in line with EN-ISO 52120 standard is applied. A Norwegian residential building with direct electric heating systems is modelled using IDA ICE 5.0 tool, featuring a PCM module. Results showed that PCM is more effective when incorporated into the interior of external walls compared to roofs. The optimal PCM building envelope design, featuring 75 mm thick PCM with a melting temperature of 21 ℃ in the interior walls, achieved the highest annual cost savings of 18.4% with Spot pricing and 6.1% with Time-of-Use tariff, respectively. The impact of PCM on energy savings varies by season. By utilizing the stored solar heat from the summer, it can potentially have a negative effect on energy savings in spring but a significantly positive effect in autumn.
PCM-Incorporated Building Envelope for Improving Cost Savings in Residential Buildings Under Cold Climates
Lecture Notes in Civil Engineering
Berardi, Umberto (Herausgeber:in) / Yin, Hang (Autor:in) / Norouziasas, Alireza (Autor:in) / Hamdy, Mohamed (Autor:in)
International Association of Building Physics ; 2024 ; Toronto, ON, Canada
14.12.2024
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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