The effects of dissolved air in the dielectric liquid FC-77 on flow boiling in a microchan-nel heat sink containing ten parallel channels, each 500 ␮m wide and 2.5 mm deep, were experimentally investigated. Experiments were conducted before and after degas-sing, at three flow rates in the range of 30– 50 ml/ min. The dissolved air resulted in a significant reduction in wall temperature at which...

A laboratory-scale temperature system for Control and Automation courses is presented. The system is a coupled two-input two-output process which use peltier modules for temperature control. This paper describes the laboratory-scale system in details. A linear dynamic model of the thermoelectric cooler including the heat sink and the cooling-load heat exchanger is developed and experiments are ...

The excellent heat removal capability of pressurized superfluid helium, HeIIplVg, has led in recent years to its use as a coolant in fusionlo and acceleratorll magnets where the operating temperature is typically in the range of 1.8 to 2. K. More recently, He-IIp has been proposed as the coolant for a polarized proton target at temperatures as low as 0.5K12. In all cases the HeIIp acts as an ai...

The inspiration driving this article is to explore the impacts of electromagnetic field and heat source/sink on two dimensional nanofluid flow over a stretching cylinder. effectively controlled model utilized in current assessment incorporates nanoparticle fraction model. nanoparticles specified here are Cobalt $Co$ Gadolinium $Gd$. Cobalt, shunt material thermomagnetic generator. Gadolinium, $...

In the present paper, an experimental assessment was performed on the transient thermal performance of a heat sink filled by a phase change material (PCM) and PCM embedded with carbon nanofibers (CNFs) and titania (TiO2) nanoparticles as nanostructured materials. In order to enhance the thermal conductivity of PCM, CNFs and TiO2 nanoparticles at different loadings (0.5wt. % and 2 wt.% of CNFs a...

In this study, the enhancement of the heat release performance of an extruded-type heat sink to prepare the large-capacity solar inverter thru the flow holes in the base plate near the heat sources was investigated. Optimal location and number of the holes in the baseplate were determined by using a commercial computation program. The heat release performance of the shape-modified heat sink was...

Sink location is considered as a basic service in geographic routing in wireless sensor networks. Obtaining the location of sink node by source node using an efficient method with low complexity has always been a challenging issue in research. In this paper, a sink location algorithm based on Fano plane is proposed. The research challenge is how to ensure the intersection of two SLQ (Location Q...