Thermal Comfort: Practical Lecture PDF 2022/23
Document Details
Uploaded by HappyKelpie
Politecnico di Torino
2023
Simona Paduos
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Summary
This document provides a practical lecture on thermal comfort, specifically covering local discomfort and additional requirements for building design. It discusses factors like vertical air temperature difference, floor temperature, draught, and radiant temperature asymmetry. The lecture materials reference the academic year 2022/2023.
Full Transcript
Politecnico di Torino Academic Year: 2022/23 Master of science in: Building Engineering (specialist pathway in: Green Building) Course: Energy performance design and indoor environmental quality Course holder: Prof. Vin...
Politecnico di Torino Academic Year: 2022/23 Master of science in: Building Engineering (specialist pathway in: Green Building) Course: Energy performance design and indoor environmental quality Course holder: Prof. Vincenzo Corrado Thermal Comfort: Practical lecture Ing. Simona Paduos [email protected] Local discomfort High vertical air Floor temperature Draught temperature difference High radiant temperature asymmetry AY 2022/23 Energy performance design and indoor environmental quality 2 Local discomfort High vertical air Floor temperature Draught temperature difference High radiant temperature asymmetry AY 2022/23 Energy performance design and indoor environmental quality 3 Additional requirement n° 1 The vertical air temperature difference between head and ankles should be: 3°C for category B 2.1°C for category A Category PPD % PD (vertical Dt) A < 6% < 3% B < 10% < 5% C < 15% < 10% AY 2022/23 Energy performance design and indoor environmental quality 4 Local discomfort AY 2022/23 Energy performance design and indoor environmental quality 5 Additional requirement n° 2 The floor temperature should be: In between 19 °C and 26°C Tfloor = 20°C winter Tfloor = 26°C summer Category PPD % PD (floor temp.) A < 6% < 10% B < 10% < 10% C < 15% < 15% AY 2022/23 Energy performance design and indoor environmental quality 6 Local discomfort AY 2022/23 Energy performance design and indoor environmental quality 7 Additional requirement n° 3 The Draught Rate depends on: The air temperature The mean air velocity The turbolence intensity Category PPD % PD (DR) In any case, for UNI 10339 A < 6% < 15% Standard It must be: B < 10% < 20% Tu,max va,max,winter ≤ 0.15 m/s C < 15% < 25% va,max,summer ≤ 0.25 m/s AY 2022/23 Energy performance design and indoor environmental quality 8 Local discomfort High vertical air Floor temperature Draught temperature difference High radiant temperature asymmetry AY 2022/23 Energy performance design and indoor environmental quality 9 Additional requirement n° 4 10°C winter 35°C summer In case of cool/warm wall risk, the plane radiant temperature asymmetry should be less than 5% 10 °C in winter and 23 °C in summer PD (Radiant Category PPD % asymmetry) A < 6% < 5% 23 B < 10% < 5% C < 15% < 10% AY 2022/23 Energy performance design and indoor environmental quality 10
