Nze Residential Test Facility Analysis Throughout Summer/Winter Peak Months for Thermal Comfort Prediction
Location
Allen E. Paulson College of Engineering and Computing (CEC)
Session Format
Poster Presentation
Co-Presenters and Faculty Mentors or Advisors
Dr. Marcel Maghiar, Faculty Advisor
Abstract
This study evaluates thermal comfort of the east bedroom in Net-Zero Energy Residential Test Facility (NZERTF) in mixed-humid climate. The dwelling was constructed by the National Institute of Standards and Technology in 2012 to encourage scholars to analyze the energy performance of the NZERTF. The thermal comfort is investigated by analyzing the 27 dry-bulb temperature, 4 airspeed, 5 globe temperature, and 6 relative humidity real-time measurements in a 3x3x3 array and a center sensor stand. The conventional domestic heat pump, small duct high velocity, and heat recovery ventilation systems are operated at the setpoint temperature. A laptop and “Child B” are simulated with a 1.7 metabolic rate and seasonally different clothing rates (clo). Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) are calculated based on the ASHRAE standard 55-2017. As a result, PMV with a lower clo is within the +/- 0.5 thermal comfort zone during December, and the results in July are slightly higher than + 0.5 PMV. 96.7% of daily time for the simulated occupant with low clo is within predicted local thermal comfort during both months. Therefore, the thermal comfort in the NZERTF is determined to be generally satisfying based on these predictions.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Presentation Type and Release Option
Presentation (Open Access)
Recommended Citation
Yang, Yearim, "Nze Residential Test Facility Analysis Throughout Summer/Winter Peak Months for Thermal Comfort Prediction" (2021). GS4 Georgia Southern Student Scholars Symposium. 95.
https://digitalcommons.georgiasouthern.edu/research_symposium/2021/2021/95
Nze Residential Test Facility Analysis Throughout Summer/Winter Peak Months for Thermal Comfort Prediction
Allen E. Paulson College of Engineering and Computing (CEC)
This study evaluates thermal comfort of the east bedroom in Net-Zero Energy Residential Test Facility (NZERTF) in mixed-humid climate. The dwelling was constructed by the National Institute of Standards and Technology in 2012 to encourage scholars to analyze the energy performance of the NZERTF. The thermal comfort is investigated by analyzing the 27 dry-bulb temperature, 4 airspeed, 5 globe temperature, and 6 relative humidity real-time measurements in a 3x3x3 array and a center sensor stand. The conventional domestic heat pump, small duct high velocity, and heat recovery ventilation systems are operated at the setpoint temperature. A laptop and “Child B” are simulated with a 1.7 metabolic rate and seasonally different clothing rates (clo). Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) are calculated based on the ASHRAE standard 55-2017. As a result, PMV with a lower clo is within the +/- 0.5 thermal comfort zone during December, and the results in July are slightly higher than + 0.5 PMV. 96.7% of daily time for the simulated occupant with low clo is within predicted local thermal comfort during both months. Therefore, the thermal comfort in the NZERTF is determined to be generally satisfying based on these predictions.
