Browse Publications Technical Papers 2009-01-2517
2009-07-12

The Advanced Design of a Liquid Cooling Garment Through Long-Term Research: Implications of the Test Results on Three Different Garments 2009-01-2517

The most recent goal of our research program was to identify the optimal features of each of three garments to maintain core temperature and comfort under intensive physical exertion. Four males and 2 females between the ages of 22 and 46 participated in this study. The garments evaluated were the MACS-Delphi, Russian Orlan, and NASA LCVG. Subjects were tested on different days in 2 different environmental chamber temperature/humidity conditions (24°C/H∼28%; 35°C/H∼20%). Each session consisted of stages of treadmill walking/running (250W to 700W at different stages) and rest. In general, the findings showed few consistent differences among the garments. The MACS-Delphi was better able to maintain subjects within a skin and core temperature comfort zone than was evident in the other garments as indicated by a lesser fluctuation in temperatures across physical exertion levels. The LCVG provided the greatest amount of cooling, in some conditions this resulted in body overcooling as noted in declines in skin temperature below a comfort level. Physiological findings comparing garments with and without the hood were inconclusive; however, subjects rated both the MACS-Delphi with hood and the Orlan with hood as higher in overall thermal comfort. The implication of these findings, including important features and guidelines for the new design/modifications of an advanced exploration LCG are discussed.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Maximal Conductive Heat Exchange through Different Body Zones in a Liquid Cooling/Warming Space Garment

2000-01-2255

View Details

TECHNICAL PAPER

Comfort Management in Rest and Exercise Conditions in an Innovative Shortened Liquid Cooling/Warming Garment

2002-01-2411

View Details

TECHNICAL PAPER

An Advanced Physiological Based Shortened Liquid Cooling/Warming Garment for Comfort Management in Routine and Emergency EVA

2002-01-2413

View Details

X