Development of outdoor misting system to prevent heat-related illnesses

Table of Contents

1. Project Overview

Project Title	Development of outdoor misting system to prevent heat-related illnesses
Theme
Period	2017.04 - 2020.03
Program	Industry-Academia Collaboration
Lead Labs
Funding Agency	Panasonic
Tags

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Evaluate thermal sensations and thermal comfort in a mist spraying environment

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Confirm cooling effects by measuring environmental factors:

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Air temperature

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Relative humidity

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Mean Radiant Temperature (MRT)

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Air velocity

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Develop and validate a physiological human model considering mist wettedness

(Comparison of skin temperature in/outside the mist zone)

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Field surveys before and after mist exposure

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Number of subjects: 1,110

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Comparative analysis:

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Subjective votes (mTSV & CSV)

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Objective environmental measurements

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Skin temperature trends (0–10 min outdoor vs 10–20 min mist zone)

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Thermal Sensation:

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‘Hot’ reduced from 98% → 33% after mist exposure

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Thermal Comfort:

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‘Discomfort’ reduced from 82% → 14%

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Environmental Effects:

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Air temperature ↓ 3.6°C

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MRT ↓ 1.0°C

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Humidity ↑ 15.9%

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Human Model:

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Developed a 3-node thermal model with/without mist wettedness

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Accurately estimated thermal state changes via skin temp analysis