Study on Measures against Heatstroke of Construction Workers Part Ⅸ

Evaluation of Thermal and Airflow Characteristics of Inner Pads Placed on the Back and the Chest when Wearing Work Clothes with Fans and Full Body Harness Safety Belt

Abstract

Airflow velocity out of the opening and clothing thermal resistance were measured by changing the position of the inner pad inside the work clothes with fans. There were three conditions: one with the inner pad attached to the chest or back, and one without the inner pad positioned. Measurements were taken in an indoor environmental test chamber with a thermal mannequin wearing work clothes with fans and a full body harness safety belt under each condition. When the inner pad was placed on the back, the air velocity exiting the opening was greater than that of the back of the chest. The whole-body clothing thermal resistance was lowest in the condition with the back of the chest and was 0.03 clo lower than in the condition without the inner pad.