Study on Evaporative Coolers

Laboratory study of the impact of evaporative coolers on indoor PM concentrations

Evaporative cooling is used extensively in low humidity areas of the Southwest United States desert region and throughout other dry climate areas worldwide for residential thermal comfort. A literature review suggested the possibility of evaporative cooling increasing personal exposures to particulate matter along with increased incidences of respiratory illnesses. Indoor and outdoor particulat...

Energy Saving in Evaporative Coolers using Permanent Magnet Brushless Motors

Due to low cost, evaporative coolers are used in most of the central regions and in the warm and dry climate of Iran and are considered as one of the major consumers of electrical power. Most evaporative coolers use single-phase induction motors by connecting directly to the power grid. But their eefficiency is very low, and their replacement with high efficiency electric motors is considered b...

An Investigation of Indirect Evaporative Coolers, IEC With Respect to Thermal Comfort Criteria

On-chip Hot Spot Remediation with Miniaturized Thermoelectric Coolers

The rapid emergence of nanoelectronics, with the consequent rise in transistor density and switching speed, has led to a steep increase in chip heat flux and growing concern over the emergence of onchip “hot spots” in microprocessors, along with such high flux regions in power electronic chips and LED’s. Miniaturized thermoelectric coolers (μ-TEC’s) are a most promising cooling technique for th...

Electronic coolers based on superconducting tunnel junctions: fundamentals and applications

Thermo-electric transport at the nano-scale is a rapidly developing topic, in particular in superconductor-based hybrid devices. In this review paper, we first discuss the fundamental principles of electronic cooling in mesoscopic superconducting hybrid structures, the related limitations and applications. We review recent work performed in Grenoble on the effects of Andreev reflection, photoni...