Holistic optimization of the operation of a GCHP system: A case study on the ADREAM building in Toulouse, France

Chiam, Zhonglin; Papas, Ilias; Easwaran, Arvind; Alonso, Corinne; Estibals, B.

doi:10.1016/j.apenergy.2022.119377

Cited by 1 publication

(1 citation statement)

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“…This approach not only significantly affects societal energy security but also engenders adverse environmental consequences [5][6][7][8]. In response, various research efforts have been undertaken to reduce non-renewable energy consumption in buildings, including improvements in HVAC equipment efficiency [9][10][11], optimization of the operational efficiency of building systems [12][13][14][15][16][17], and the paramount importance of increasing the incorporation of renewable and low-grade energy sources within building infrastructures [18][19][20]. Renewable energy typically exhibits low-grade and intermittent characteristics in the absence of grade-lifting or energy conversion processes (e.g., from heat to electricity).…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of the Solar Energy-Powered Embedded Pipe Envelope System

Wang,

Onn,

Chew

et al. 2024

Buildings

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This study introduces a Solar Energy-Powered Embedded Pipe Envelope System (SEPES) designed to enhance indoor thermal comfort and reduce heating loads during the heating season. To achieve this objective, a dynamic simulation model coupling a SEPES and building thermal environment was established under the TRNSYS environment. Based on the model, a case analysis was conducted to investigate the operational characteristics of the system during the heating season in a rural building in Beijing. The results indicate that, on the coldest heating day, the system can elevate the indoor temperature by 14.5 °C, reducing the daily heat load from 76.3 kWh to 20.3 kWh, achieving a remarkable energy savings of 73.4%. Additionally, due to the utilization of lower solar heat collection temperatures, the energy efficiency of the system reaches 26.9%. Throughout the entire heating season, the SEPES system enhances the natural indoor temperature by 13.3 °C to 16.6 °C, demonstrating significant effectiveness. Moreover, regional adaptability analysis indicates that the SEPES achieves energy savings ranging from 43.9% to 66% during the heating season in cold regions and regions with hot summers and cold winters in China. Overall, the SEPES is most suitable for climates characterized by both low temperatures and abundant solar radiation in order to achieve optimal performance.

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