Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort Modeling
In recent years, physiological features have gained more attention in developing models of personal thermal comfort for improved and accurate adaptive operation of Human-In-The-Loop (HITL) Heating, Ventilation, and Air-Conditioning (HVAC) systems. Pursuing the identification of effective physiologic...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-08-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/19/17/3691 |
| _version_ | 1818001610852270080 |
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| author | Wooyoung Jung Farrokh Jazizadeh Thomas E. Diller |
| author_facet | Wooyoung Jung Farrokh Jazizadeh Thomas E. Diller |
| author_sort | Wooyoung Jung |
| collection | DOAJ |
| description | In recent years, physiological features have gained more attention in developing models of personal thermal comfort for improved and accurate adaptive operation of Human-In-The-Loop (HITL) Heating, Ventilation, and Air-Conditioning (HVAC) systems. Pursuing the identification of effective physiological sensing systems for enhancing flexibility of human-centered and distributed control, using machine learning algorithms, we have investigated how heat flux sensing could improve personal thermal comfort inference under transient ambient conditions. We have explored the variations of heat exchange rates of facial and wrist skin. These areas are often exposed in indoor environments and contribute to the thermoregulation mechanism through skin heat exchange, which we have coupled with variations of skin and ambient temperatures for inference of personal thermal preferences. Adopting an experimental and data analysis methodology, we have evaluated the modeling of personal thermal preference of 18 human subjects for well-known classifiers using different scenarios of learning. The experimental measurements have revealed the differences in personal thermal preferences and how they are reflected in physiological variables. Further, we have shown that heat exchange rates have high potential in improving the performance of personal inference models even compared to the use of skin temperature. |
| first_indexed | 2024-04-14T03:35:38Z |
| format | Article |
| id | doaj.art-4808bd45081b4647b6195a60b5572d5f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T03:35:38Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-4808bd45081b4647b6195a60b5572d5f2022-12-22T02:14:45ZengMDPI AGSensors1424-82202019-08-011917369110.3390/s19173691s19173691Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort ModelingWooyoung Jung0Farrokh Jazizadeh1Thomas E. Diller2Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24061, USADepartment of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24061, USADepartment of Mechanical Engineering, Virginia Tech, Blacksburg, VA 24061, USAIn recent years, physiological features have gained more attention in developing models of personal thermal comfort for improved and accurate adaptive operation of Human-In-The-Loop (HITL) Heating, Ventilation, and Air-Conditioning (HVAC) systems. Pursuing the identification of effective physiological sensing systems for enhancing flexibility of human-centered and distributed control, using machine learning algorithms, we have investigated how heat flux sensing could improve personal thermal comfort inference under transient ambient conditions. We have explored the variations of heat exchange rates of facial and wrist skin. These areas are often exposed in indoor environments and contribute to the thermoregulation mechanism through skin heat exchange, which we have coupled with variations of skin and ambient temperatures for inference of personal thermal preferences. Adopting an experimental and data analysis methodology, we have evaluated the modeling of personal thermal preference of 18 human subjects for well-known classifiers using different scenarios of learning. The experimental measurements have revealed the differences in personal thermal preferences and how they are reflected in physiological variables. Further, we have shown that heat exchange rates have high potential in improving the performance of personal inference models even compared to the use of skin temperature.https://www.mdpi.com/1424-8220/19/17/3691HVACcomfort-driven operationthermal comfortheat flux sensorsthermoregulation mechanismpersonalized thermal comfort models |
| spellingShingle | Wooyoung Jung Farrokh Jazizadeh Thomas E. Diller Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort Modeling Sensors HVAC comfort-driven operation thermal comfort heat flux sensors thermoregulation mechanism personalized thermal comfort models |
| title | Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort Modeling |
| title_full | Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort Modeling |
| title_fullStr | Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort Modeling |
| title_full_unstemmed | Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort Modeling |
| title_short | Heat Flux Sensing for Machine-Learning-Based Personal Thermal Comfort Modeling |
| title_sort | heat flux sensing for machine learning based personal thermal comfort modeling |
| topic | HVAC comfort-driven operation thermal comfort heat flux sensors thermoregulation mechanism personalized thermal comfort models |
| url | https://www.mdpi.com/1424-8220/19/17/3691 |
| work_keys_str_mv | AT wooyoungjung heatfluxsensingformachinelearningbasedpersonalthermalcomfortmodeling AT farrokhjazizadeh heatfluxsensingformachinelearningbasedpersonalthermalcomfortmodeling AT thomasediller heatfluxsensingformachinelearningbasedpersonalthermalcomfortmodeling |