Clothing Area Factor for Typical Seasonal Clothing of Infant

Yoshihito Kurazumi,Tomonori Sakoi,Kenta Fukagawa,Tadahiro Tsuchikawa,Akie Naito,Emi Kondo,Reiko Hashimoto

doi:10.4236/health.2021.134031

Yoshihito Kurazumi, Tomonori Sakoi + Show 5 more

Open Access

https://doi.org/10.4236/health.2021.134031

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Abstract

It is not ethical to conduct experiments on infants regarding the thermal environment. Therefore, to examine the thermal environment of infants, experiments and simulations using a human body thermal model may be feasible by clarifying the human body coefficient values of infants. When focusing on the heat transfer area of the infant’s body coefficient values, the body surface area and solar radiation area factor have only been clarified as the standard. The essential basic data for examining the thermal environment of infants have not been sufficiently obtained. Therefore, the purpose of this study was to determine the clothing area factor for infants’ clothing in a typical season. The clothing area factor of infants clothed in summer, mid-season, and winter clothing was measured using a photographic method. The clothing area factor was 1.22, 1.42, and 1.90 for summer, mid-season, and winter clothing, respectively, indicating a significant seasonal difference. It was also found that the clothing area factor was significantly greater for infants than for adults.

Highlights

To examine the thermal environment of infants, experiments and simulations using a human body thermal model may be feasible by clarifying the human body coefficient values of infants
When focusing on the heat transfer area of the infant’s body coefficient values, the body surface area and solar radiation area factor have only been clarified as the standard
It was found that the clothing area factor was significantly greater for infants than for adults

Summary

Introduction

When considering the body heat balance based on the clothed state, it is necessary to clarify the surface temperature of the clothing. It is difficult to measure the heat transfer area of the target human body every time the thermal environment is evaluated. Since it is difficult to determine the heat transfer area in the clothed state, the thermal environment evaluation index is usually calculated using the coefficient value of the increase rate of the heat transfer area for the naked body, assuming a typical combination of clothing

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Conclusion