Electronic devices are often tested at elevated temperature after they are manufactured. The time required for testing can be reduced by increasing the rate of heating from ambient to test temperature, particularly if the devices are not removed from their factory carrier trays. This paper describes a new rapid-heating method based on low-cost infrared heaters. A basic model is developed to eva...

Sidewall radiant heating creates a non-uniform thermal environment. In office buildings, it is important to know how supply fresh air reduce asymmetry without causing draft. As solution, diffuse ceiling ventilation (DCV) used into sidewall heated room. 20 subjects (10 males and 10 females) were recruited subjective assessments obtained. The results show that under the influence of heating, ther...

The radiant time series method is a new method for performing design cooling load calculations, derived from the heat balance method. It effectively replaces all other simplified (non-heat-balance) methods such as the cool#zg load temperature difference~solar cooling load~cooling load factor method (CLTD/SCL/CLF), the total equivalent temperature difference~time averaging method (TETD/TA), and ...

Radiant cooling systems (RCS) are gaining acceptance as a heating, ventilation, and air conditioning (HVAC) solution for achieving adequate thermal comfort maintaining acceptable indoor quality inside buildings. RCS well known their energy-saving potential; however, serious condensation problem hinders the growth of this technology. In order to prevent risk condensation, supply water temperatur...

Due to its relatively lower thermal conductivity, the suitability of wood is called into question when selecting flooring material best suited radiant heating systems. The European standard EN 1264 considers floorings with a resistance over 0.15 m2 K/W be out scope. This belief was partially disproved in previous article that studied wooden floors for Madrid’s climate. However, effect climate s...