Solar heat driven cooling systems are an attractive concept. The need for cooling is associated with high ambient temperatures. Ejector based cooling systems have been in existence for some time but have not gained widespread use due to their low performance and difficulty of control. Furthermore, although ejectors are well suited to steady state operation, they do not couple well to varying so...

This paper presents environment friendly refrigerant R290 as a solution to the environmental concerns like depletion of ozone layer and rise in global warming because of wide use of synthetic refrigerants R22 and R134a. The water cooler is the widely used refrigeration application in warm climatic countries. Refrigerant R22 and R134a are predominantly used refrigerants in water cooler refrigera...

Aims: To investigate the effect of hamstrings’ cooling and short-duration Cryostretching on sit and reach flexibility test (SR) performance. Study Design: Crossover Randomized Clinical Trial. Place and Duration of the Study: Department of Physical Therapy, Technological Educational Institute (TEI) of Western Greece, Aigio Achaias, Greece, 3 months. Methodology: Eighteen (18) healthy male (age: ...

BACKGROUND AND PURPOSE Therapeutic hypothermia represents a promising neuroprotective treatment for patients with ischemic stroke. Selective, intracarotid blood cooling may initiate rapid and early brain hypothermia, reduce systemic effects, and allow combined endovascular mechanical thrombectomy. For this approach, a balloon cooling catheter system was designed and studied in vitro to optimize...

High-performance electronic parts are vital features in almost all modern motorized machines. These silicon components significantly minimised, especially transportation branch. Concentration of performance requires perfect cooling conditions. A fluid flow by an active circuit with heat sinks is a commonly used principle. Sufficient and uniform temperature field on transfer area crucial paramet...

Information technology (IT) has brought significant changes in people’s lives. As an important part of the IT industry, data centres (DCs) have been rapidly growing in both the number and size over the past 40 years. Around 30% to 40% of electricity consumption in DCs is used for space cooling, thus leading to very inefficient DC operation. To identify ways to reduce the energy consumption for ...