Browsing by Author "Ibrahim, Dina M."

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    Buildings' energy consumption prediction models based on buildings’ characteristics: Research trends, taxonomy, and performance measures
    (Elsevier, 2022-05-05) Al-Shargabi, Amal A.; Almhafdy, Abdulbasit; Ibrahim, Dina M.; Alghieth, Manal; Chiclana, Francisco
    Building's energy consumption prediction is essential to achieve energy efficiency and sustain-ability. Building's energy consumption is highly dependent on buildings' characteristics such as shape, orientation, roof type among others. This paper offers a systematic literature review of studies that proposed building's characteristics based energy consumption prediction models. In particular, the paper reviews the types of buildings, their characteristics, the type of energy predicted, the dataset, the artificial intelligence (AI) methods used for energy consumption prediction, and the implemented research evaluation performance measures. The review findings show that a small number of studies consider buildings' characteristics as predictors for energy consumption. Most of the studies use historical energy consumption data, i.e., time-series data, to predict future buildings' energy consumption. The present study contributes a new taxonomy of the most common AI methods used for energy consumption predictions based on buildings' characteristics. The study also provides a comparative analysis of the different AI methods in terms of their contributions regarding the prediction of energy consumption. The review identifies research gaps in the existing studies, which is used to highlight future research directions.
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    Prediction models for building energy consumption based on buildings’ characteristics: research trends, taxonomy, and performance measures
    (Elsevier, 2022-04) Al-Shargabi, Amal A.; Almhafdy, Abdulbasit A.; Ibrahim, Dina M.; Alghieth, Manal; Chiclana, Francisco
    Building’s energy consumption prediction is essential to achieve energy efficiency and sustainability. Building’s energy consumption is highly dependent on buildings’ characteristics such as shape, orientation, roof type among others. This paper offers a systematic literature review of studies that proposed building’s characteristics based energy consumption prediction models. In particular, the paper reviews the types of buildings, their characteristics, the type of energy predicted, the dataset, the artificial intelligence (AI) methods used for energy consumption prediction, and the implemented research evaluation performance measures. The review findings show that a small number of studies consider buildings’ characteristics as predictors for energy consumption. Most of the studies use historical energy consumption data, i.e., time-series data, to predict future buildings’ energy consumption. The present study contributes a new taxonomy of the most common AI methods used for energy consumption predictions based on buildings’ characteristics. The study also provides a comparative analysis of the different AI methods in terms of their contributions regarding the prediction of energy consumption. The review identifies research gaps in the existing studies, which is used to highlight future research directions.
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    Tuning deep neural networks for predicting energy consumption in the arid climate based on buildings characteristics
    (MDPI, 2021-11-11) Al-Shargabi, Amal A.; Almhafdy, Abdulbasit A.; Ibrahim, Dina M.; Alghieth, Manal; Chiclana, Francisco
    The dramatic growth in the number of buildings worldwide has led to an increase interest in predicting energy consumption, especially for the case of residential buildings. As the heating and cooling system highly affect the operation cost of buildings; it is worth investigating the development of models to predict the heating and cooling loads of buildings. In contrast to the majority of the existing related studies, which are based on historical energy consumption data, this study considers building characteristics, such as area and floor height, to develop prediction models of heating and cooling loads. In particular, this study proposes deep neural networks models based on several hyper-parameters: the number of hidden layers, the number of neurons in each layer, and the learning algorithm. The tuned models are constructed using a dataset generated with the Integrated Environmental Solutions Virtual Environment (IESVE) simulation software for the city of Buraydah city, the capital of the Qassim region in Saudi Arabia. The Qassim region was selected because of its harsh arid climate of extremely cold winters and hot summers, which means that lot of energy is used up for cooling and heating of residential buildings. Through model tuning, optimal parameters of deep learning models are determined using the following performance measures: Mean Square Error (MSE), Root Mean Square Error (RMSE), Regression (R) values, and coefficient of determination (R2 ). The results obtained with the five-layer deep neural network model, with 20 neurons in each layer and the Levenberg–Marquardt algorithm, outperformed the results of the other models with a lower number of layers. This model achieved MSE of 0.0075, RMSE 0.087, R and R2 both as high as 0.99 in predicting the heating load and MSE of 0.245, RMSE of 0.495, R and R2 both as high as 0.99 in predicting the cooling load. As the developed prediction models were based on buildings characteristics, the outcomes of the research may be relevant to architects at the pre-design stage of heating and cooling energy-efficient buildings.
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    The use of statistical and machine learning tools to accurately quantify the energy performance of residential buildings
    (PeerJ Publishing, 2022-01-26) Ibrahim, Dina M.; Almhafdy, Abdulbasit A.; Al-Shargab, Amal A.; Alghieth, Manal; Chiclana, Francisco
    Prediction of building energy consumption is key to achieving energy efficiency and sustainability. Nowadays, the analysis or prediction of building energy consumption using building energy simulation tools facilitates the design and operation of energy-efficient buildings. The collection and generation of building data are essential components of machine learning models; however, there is still a lack of such data covering certain weather conditions. Such as those related to arid climate areas. This paper fills this identified gap with the creation of a new dataset for energy consumption of 3,840 records of typical residential buildings of the Saudi Arabia region of Qassim, and investigates the impact of residential buildings’ eight input variables (Building Size, Floor Height, Glazing Area, Wall Area, window to wall ratio (WWR), Win Glazing U-value, Roof U-value, and External Wall U-value) on the heating load (HL) and cooling load (CL) output variables. A number of classical and non-parametric statistical tools are used to uncover the most strongly associated input variables with each one of the output variables. Then, the machine learning Multiple linear regression (MLR) and Multilayer perceptron (MLP) methods are used to estimate HL and CL, and their results compared using the Mean Absolute Error (MAE), the Root Mean Square Error (RMSE), and coefficient of determination (R2) performance measures. The use of the IES simulation software on the new dataset concludes that MLP accurately estimates both HL and CL with low MAE, RMSE, and R2, which evidences the feasibility and accuracy of applying machine learning methods to estimate building energy consumption.