This paper describes a solar-thermal run Stirling engine based uninterrupted power generating system employing magnesium sulphate impregnated Zeolite pellets for thermal energy storage. In the proposed system, Stirling engine design is based on the average temperature difference of 480 C, assuming the heat sink temperature equal to the ambient temperature of that place. In presence of sun, Fres...

Background/introduction Thermal ablation techniques using heat conduction (e.g. radiofrequency ablation) are sensitive to the cooling effect of blood flow, the heat sink effect. Thermal ablation by high intensity ultrasound guided by magnetic resonance imaging (MRgHIFU), is less dependent on heat conduction, and produces sharply delineated ablated volumes. The aim of this study was to ablate ad...

Heat sinks are used in industrial equipment to dissipate the excess heat from their heat-generating parts to the ambient. In the last few years, efforts on manufacturing electronic or mechanical devices with less weight, space, and lower cost were spent. Heat dissipation from the heat sink is stalling a big problem which many researchers are trying to solve. The aim of this study is to brief th...

Modern portable electronics have seen component heat loads increasing, while the space available for heat dissipation has decreased, both factors working against the thermal designer. This requires that the thermal management system be optimized to attain the highest performance in the given space. While adding fins to the heat sink increases surface area, it also increases the pressure drop. T...

Design and developmental methodology of thermoelectric refrigeration has been explained in detail also the theoretical physical characteristics of thermoelectric cooling module used in this research work have been investigated. Authors have been designed and developed an experimental prototype of thermoelectric refrigeration system working on solar photo voltaic cells generated DC voltage. The ...

The LED light source with low power and high luminous efficiency has been used in the automotive industry. In this study, a 15W LED fog lamp with better visibility and low price was developed using the SMD type LED modules. To this end, the thermal performance of the fog lamp was optimized by adjusting the number of heat sink fins, heat pipes and the emissivity of the heatsink. As a result, the...

Distributed propulsion concepts are promising in terms of improved fuel burn, better aerodynamic performance, and greater control. Superconducting networks are being considered for their superior power density and efficiency. This study discusses the design of cryogenic cooling systems which are essential for normal operation of superconducting materials. This research project has identified si...

With the increase in heat dissipation from microelectronic devices and the reduction in overall form factors, thermal management bmomes a more and more important element of electronic product design. Both the performance reliability and life expectancy of electronic equipment are inversely related to the component temperature of the equipment. The relationship between the reliability y and the ...

After processing, the semiconductor material is cleaved into comparatively small pieces of 1.2mm by 1.4mm. These laser chips contain the important sorting cell as well as two neighboring cells to enable an easier handling of the chip and thus a protection of the lasers. However, due to the small dimensions of the laser chip, there was poor heat dissipation and consequently elevated temperatures...