Journal of Textile Science & Engineering

Emiel A DenHartog

Publications

• Research Article
  Effects of Air Velocity, Air Gap Thickness and Configuration on Heat Transfer of a Wearable Convective Cooling System
  Author(s): Yu Sun, Warren J Jasper and Emiel A DenHartogYu Sun, Warren J Jasper and Emiel A DenHartog
  
  The effects of air velocity, air-gap thickness and configuration on heat transfer of a wearable convective cooling system were modeled using a 2-D Computational Fluid Dynamics (CFD) simulation. Three different configurations, one with eight 1 cm fans (8 × 1 model); one with four 2 cm fans (4 × 2 model); and one with four 1 cm fans (4 × 1 model) were studied at different inlet air velocities of 0.25 m/s, 0.5 m/s, 0.75 m/s and 1.0 m/s and with air gaps of 3 mm, 7 mm and 11 mm. The simulations showed that the convective and evaporative heat transfer coefficients varied with a power function of inlet air velocity, but the exponent was larger than reported in the literature. At lower air velocities, the heat transfer coefficients increased as the gap between the skin and the undergarment widened. At higher inlet air velocities, 3 mm and 11 mm air gaps showed the highest h.. Read More»
  DOI: 10.4172/2165-8064.1000227

  Abstract PDF