The Sun's Radiant Heat

Heat Transfer Characteristics of Rowing Headgear with Radiant Heat Flow

INTRODUCTION Radiant heat gain to the head has recently been shown to affect sensation in human subjects (Buyan et al., 2006). However, only one published study has been conducted on the influence of radiant heat gain for sports headgear (Ishigaki et al., 2001). One could assume that reducing heat stress by shielding solar radiation using sports headgear would increase thermal comfort, and poss...

Radiant Heat and Thermal Comfort in Vehicles

Infrared-reflective (IRR) treatment of automotive glass has been shown to reduce air temperature in vehicle cabins, thereby increasing fuel economy and occupant comfort. Its effect on radiant heat, however, may augment these benefits. In this study, the hypothesis that radiant heat affects subjective comfort ratings in a vehicle was tested. IRR films were systematically applied to the driver-si...

Radiant heat from propane jet fires

Sonic propane jet fire experiments were carried out in absence of wind, with visible flame length ranging between 2.2 and 8.1 m. The thermal radiation intensity increased with the mass flow rate and the flame length. The net heat released was also computed and a correlation for the flame length as a function of Q is proposed. The surface emissive power and the fraction of heat irradiated were e...

Stable states in the radiant heat transfer of the near field for two parallel slabs

In this paper, we study the dynamics of the radiative heat transfer of between two slabs. In these systems, depending on the type of slabs and the thermal interaction they have with their surroundings, they can have one or several stable states in the phase space. It can be seen that in these systems, quantities such as distance and thickness affect the states of these systems. We show that the...

Effects of radiant heat in fire fighting instructors.