6533b7d8fe1ef96bd1269a4f
RESEARCH PRODUCT
An investigation of environmental temperature effects on energy exchange by thermal radiation
Claudio FazioOnofrio Rosario BattagliaR M Sperandeo-mineoNicola Pizzolatosubject
PhysicsRadiative coolingSettore FIS/08 - Didattica E Storia Della FisicaJoule effectVacuum tubeGeneral Physics and AstronomyThermodynamicsMechanicslaw.inventionThermal radiationlawRadiative transferLaboratory procedures Thermal radiation Physics educationTube (fluid conveyance)ResistorConstant (mathematics)description
The radiative heating or cooling of a body placed in an environment, whose temperature is considered constant is described by Stefan's law. In this paper, an analysis is made of how a time-dependent environmental temperature influences the heating/cooling process. We compare experimental results for a resistor first heated by the Joule effect inside a glass vacuum tube and then cooled under two different conditions: in a bath at a constant temperature and in air. We also discuss a model that describes how the time-dependent tube temperature influences the radiative resistor cooling by identifying the properties of the environment that make the resistor cooling rate linear.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-12-01 | American Journal of Physics |