Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten Setting

People tend to spend the majority of their time indoors. Indoor air properties can significantly affect humans’ comfort, health, and productivity. This study utilizes measurement data of indoor conditions in a kindergarten in Sofia, Bulgaria. Autoregressive integrated moving average (ARIMA) and long...

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Main Authors: Radostin Mitkov, Dessislava Petrova-Antonova, Petar O. Hristov
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Toxics
Subjects:
Online Access:https://www.mdpi.com/2305-6304/11/8/709
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author Radostin Mitkov
Dessislava Petrova-Antonova
Petar O. Hristov
author_facet Radostin Mitkov
Dessislava Petrova-Antonova
Petar O. Hristov
author_sort Radostin Mitkov
collection DOAJ
description People tend to spend the majority of their time indoors. Indoor air properties can significantly affect humans’ comfort, health, and productivity. This study utilizes measurement data of indoor conditions in a kindergarten in Sofia, Bulgaria. Autoregressive integrated moving average (ARIMA) and long short-term memory (LSTM) recurrent neural network (RNN) models were developed to predict CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> levels in the educational facility over the next hour based on 2.5 h of past data and allow for near real-time decision-making. The better-performing model, LSTM, is also used for temperature and relative humidity forecasting. Global comfort is then estimated based on threshold values for temperature, humidity, and CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>. The predicted <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>R</mi><mn>2</mn></msup></semantics></math></inline-formula> values ranged between 0.938 and 0.981 for the three parameters, while the prediction of global comfort conditions achieved a 91/100 accuracy.
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spelling doaj.art-923110f66c334b51935bd1a1c7769cad2023-11-19T03:14:57ZengMDPI AGToxics2305-63042023-08-0111870910.3390/toxics11080709Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten SettingRadostin Mitkov0Dessislava Petrova-Antonova1Petar O. Hristov2GATE Institute, Sofia University “St. Kliment Ohridski”, 1113 Sofia, BulgariaGATE Institute, Sofia University “St. Kliment Ohridski”, 1113 Sofia, BulgariaGATE Institute, Sofia University “St. Kliment Ohridski”, 1113 Sofia, BulgariaPeople tend to spend the majority of their time indoors. Indoor air properties can significantly affect humans’ comfort, health, and productivity. This study utilizes measurement data of indoor conditions in a kindergarten in Sofia, Bulgaria. Autoregressive integrated moving average (ARIMA) and long short-term memory (LSTM) recurrent neural network (RNN) models were developed to predict CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula> levels in the educational facility over the next hour based on 2.5 h of past data and allow for near real-time decision-making. The better-performing model, LSTM, is also used for temperature and relative humidity forecasting. Global comfort is then estimated based on threshold values for temperature, humidity, and CO<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>2</mn></msub></semantics></math></inline-formula>. The predicted <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>R</mi><mn>2</mn></msup></semantics></math></inline-formula> values ranged between 0.938 and 0.981 for the three parameters, while the prediction of global comfort conditions achieved a 91/100 accuracy.https://www.mdpi.com/2305-6304/11/8/709predictive modelingmachine learningindoor environmentcomfort conditionsair quality
spellingShingle Radostin Mitkov
Dessislava Petrova-Antonova
Petar O. Hristov
Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten Setting
Toxics
predictive modeling
machine learning
indoor environment
comfort conditions
air quality
title Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten Setting
title_full Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten Setting
title_fullStr Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten Setting
title_full_unstemmed Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten Setting
title_short Predictive Modeling of Indoor Environmental Parameters for Assessing Comfort Conditions in a Kindergarten Setting
title_sort predictive modeling of indoor environmental parameters for assessing comfort conditions in a kindergarten setting
topic predictive modeling
machine learning
indoor environment
comfort conditions
air quality
url https://www.mdpi.com/2305-6304/11/8/709
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AT dessislavapetrovaantonova predictivemodelingofindoorenvironmentalparametersforassessingcomfortconditionsinakindergartensetting
AT petarohristov predictivemodelingofindoorenvironmentalparametersforassessingcomfortconditionsinakindergartensetting