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Journals
Applied Mathematics and Nonlinear Sciences
Volume 7 (2022): Issue 1 (January 2022)
Open Access
Energy-saving technology of BIM green buildings using fractional differential equation
Ya Qin
Ya Qin
,
Mohammed Basheri
Mohammed Basheri
and
Rowa E.E. Omer
Rowa E.E. Omer
| Dec 13, 2021
Applied Mathematics and Nonlinear Sciences
Volume 7 (2022): Issue 1 (January 2022)
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Published Online:
Dec 13, 2021
Page range:
481 - 490
Received:
Jun 17, 2021
Accepted:
Sep 24, 2021
DOI:
https://doi.org/10.2478/amns.2021.2.00085
Keywords
buildings’ energy savings prediction
,
GM(1,1) model
,
fractional GM(1,1) model
© 2021 Ya Qin et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Fig. 1
Comparison of actual and forecasted values of each model.
Fig. 2
Distribution scatterplot of prediction and measurement of residential average natural gas consumption.
Fig. 3
Distribution scatterplot of predicted and measured values of average residential power consumption.
Energy-saving potential after residential renovation of different years and types of buildings.
Building life
Building type
<2016
2016–2017
2017–2018
>2018
Detached house
Semidetached dwelling
Row house
Villa
Energy-saving rate, %
56
24
17
3
3
12
20
29
Calculation results of the evaluation indexes of each model.
Error
GM(1,1) model
GM-BP neural network model
Maximum relative error, absolute value,
E
max
, %
46.12
0.47
Average relative error,
ε
ave
, %
7.69
0.08
RMSE (×10
6
)
66.10
1.46