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Assessment of energy-saving technologies retrofitted to existing public buildings in China

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Abstract

This study compared and analyzed both the energy savings and cost-effectiveness of various energy-saving technologies retrofitted to common buildings in China. Base models for an office and store building, set in representative climate zones of China—Beijing, Shanghai, and Guangzhou—were established and calibrated in EnergyPlus, a building energy simulation software program. Various energy-saving technologies were then applied to these models in EnergyPlus to calculate the overall energy savings under different climate conditions. In addition, a payback analysis was performed to determine the cost-effectiveness of each technology. The final results of this study can serve as a preliminary reference for selecting effective and economical energy-saving technologies to retrofit existing public buildings.

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Authors and Affiliations

  1. College of Mechanical Engineering, Tongji University, Shanghai, 201804, China

    Peng Xu, Yang Shen, Lu Chen, Jiachen Mao, Eric Chang & Ying Ji

Authors
  1. Peng Xu
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  2. Yang Shen
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  3. Lu Chen
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  4. Jiachen Mao
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  5. Eric Chang
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  6. Ying Ji
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Corresponding author

Correspondence to Peng Xu.

Appendices

Appendix 1

Fig. 1
figure 1

Typical office building model

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Fig. 2
figure 2

Typical store building model

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Fig. 3
figure 3

Beijing office building model calibration. AHU air handling unit

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Fig. 4
figure 4

Shanghai office building model calibration

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Fig. 5
figure 5

Guangzhou office building model calibration

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Fig. 6
figure 6

Beijing store building model calibration

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Fig. 7
figure 7

Shanghai store building model calibration

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Fig. 8
figure 8

Guangzhou store building model calibration

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Appendix 2

Table 23 Costs of common retrofit methods
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Table 24 Payback period of Beijing offices
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Table 25 Retrofit description
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Table 26 Payback period of Beijing stores
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Table 27 Payback period of Shanghai offices
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Table 28 Payback period of Shanghai stores
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Table 29 Payback period of Guangzhou offices
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Table 30 Payback period of Guangzhou stores
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Table 31 CCE for Beijing office building
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Table 32 CCE for Beijing store building
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Table 33 CCE for Shanghai office building
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Table 34 CCE for Shanghai store building
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Table 35 CCE for Guangzhou Office building
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Table 36 CCE for Guangzhou store building
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Table 37 NPV for Beijing office building
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Table 38 NPV for Beijing store building
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Table 39 NPV for Shanghai office building
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Table 40 NPV for Shanghai store building
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Table 41 NPV for Guangzhou office building
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Table 42 NPV for Guangzhou store building
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Table 43 IRR for Beijing office building
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Table 44 IRR for Beijing store building
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Table 45 IRR for Shanghai office building
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Table 46 IRR for Shanghai store building
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Table 47 IRR for Guangzhou office building
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Table 48 IRR for Guangzhou store building
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Xu, P., Shen, Y., Chen, L. et al. Assessment of energy-saving technologies retrofitted to existing public buildings in China. Energy Efficiency 9, 67–94 (2016). https://doi.org/10.1007/s12053-015-9350-6

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  • DOI: https://doi.org/10.1007/s12053-015-9350-6

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