Thermal and Energy Performances Analysis of Overheated Educational Space Based on Data Driven Approach

Amel Soukaina Cherif, Sondes Skander-Mustapha, Ilhem Slama Belkhodja

Abstract


This study addresses the critical issue of overheating in built environments. With increasing extreme heat events and dense urbanization, overheating poses serious risks to human health, productivity, and well-being. Existing research mainly emphasizes external environmental drivers, leaving a gap in understanding internal building dynamics. This paper examines the thermal and energy behavior of an overheated educational laboratory room, pursuing two objectives: defining indoor comfort temperatures to enhance productivity and evaluating energy consumption to identify potential savings. A detailed numerical model of the laboratory envelope, incorporating interior electrical loads and air-conditioning systems, is developed using data from a monitoring setup that captures dynamic temperature variations. By applying the Narxnet predictive algorithm to historical temperature and humidity data, the model estimates energy consumption with high accuracy. Key challenges included creating a reliable model that reflects the complexity of the space, building a robust prediction method, and accurately representing air-conditioning use. The technical approaches adopted to address these issues are presented, offering insights applicable to other overheated buildings. Results extend beyond the specific case, contributing to broader strategies for mitigating overheating. Validation confirms strong performance, with a 2% prediction error and less than 1°C deviation in the envelope model, except for the glass façade, which reaches 1°C. Estimated cooling demand also confirms the adequacy of the installed photovoltaic system, even under curtailment conditions, ensuring reliable and efficient operation.


Keywords


Overheated space; Envelope thermal Behaviour; Energy-consumption prediction; Internal generating heat; Photovoltaic Panel; Narxnet Modelling

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References


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DOI (PDF): https://doi.org/10.20508/ijrer.v16i2.15280.g9210

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