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Research on Energy Saving and Economy of Old Buildings Based on Parametric Design: A Case Study of a Hospital in Linyi City, Shandong Province

Author

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  • Shengyuan Guo

    (College of Civil Engineering and Architecture, Xinjiang University, Urumqi 830017, China)

  • Wanjiang Wang

    (College of Civil Engineering and Architecture, Xinjiang University, Urumqi 830017, China)

  • Yihuan Zhou

    (College of Civil Engineering and Architecture, Xinjiang University, Urumqi 830017, China)

Abstract

With the need for a green economy and the introduction of low-carbon policies, more and more old buildings are being transformed to improve the thermal performance of buildings and reduce energy consumption. However, people ignore the village buildings and the old public buildings. Based on the investigation of a typical health center in Linyi City, this paper proposed improvement measures using EnergyPlus simulation software and JePlus parameter chemical tools. The various factors analyze the various parts of the enclosure, and the energy-saving effect of the roof is better than that of the exterior wall: When the thickness of the insulation layer gradually increases from 0 cm to 30 cm, the unit energy consumption of the building gradually decreases from 57 kW·h/m 2 to 42.8 kW·h/m 2 , while that of the roof is gradually reduced to 24.41 kW·h/m 2 . Double exterior windows effectively reduce the energy consumption of the building in all renovation schemes. The optimal scheme is selected through the parameterized design of all the overall enclosure reconstruction schemes and the initial investments. The results showed that the investment recovery of the selected scheme was between 1.36–5.28 years. Plan 5 (12 cm XPS is used as insulation material for the exterior wall and roof, and the exterior window is replaced with 6 mm medium transmittance Low-e + 12 mm air + 6 mm clear) had the highest energy efficiency (91.11%). Plan 2 (6 cm XPS is used as insulation material for the exterior wall and roof, and the exterior window is replaced with 12 mm single medium transmittance heat-reflecting glass) had the shortest investment recovery period (2.04 years).

Suggested Citation

  • Shengyuan Guo & Wanjiang Wang & Yihuan Zhou, 2022. "Research on Energy Saving and Economy of Old Buildings Based on Parametric Design: A Case Study of a Hospital in Linyi City, Shandong Province," Sustainability, MDPI, vol. 14(24), pages 1-20, December.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:24:p:16681-:d:1001854
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    References listed on IDEAS

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    3. Samuel Domínguez & Juan J. Sendra & Angel L. León & Paula M. Esquivias, 2012. "Towards Energy Demand Reduction in Social Housing Buildings: Envelope System Optimization Strategies," Energies, MDPI, vol. 5(7), pages 1-25, July.
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    Cited by:

    1. Raniero Sannino, 2023. "Thermal Loads Map and Overall Energy Analysis Depending on Low-Effort Parameters Change: A Commercial Building Case Study," Sustainability, MDPI, vol. 15(8), pages 1-18, April.

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