Rapid Transient Heat Transfer of Near-Critical Carbon Dioxide.

Experimental Study for Investigating the Mechanism of Heat Transfer near the Critical Heat Flux in Nucleate Pool Boiling

Heat transfer coefficient in nucleate pool boiling near critical heat flux at least one orderhigher than the convectional heat transfer modes. In this paper, an experimental setup isdesigned and fabricated to investigate the mechanism of heat transfer from boiling surface tobulk liquid near critical heat flux. The images of pool boiling near the high heat flux regionreveals that the individual ...

Transient Convective Heat Transfer

In nature, as well as within the human-made thermal systems, the time-variable regimes are more commonly encountered, if not always, than the permanent regimes. Nevertheless, studies in convection are still more frequent in the permanent regimes, undoubtedly due to the related difficulties in calculation in terms of time and cost of computation. One may distinguish two categories of time-depend...

Heat Stroke and Carbon Dioxide

Performance Investigation of Two Two-Stage Trans-Critical Carbon Dioxide Refrigeration Cycles Ejector and Internal Heat Exchanger

In the present work, the performances of improved two-stage multi inter-cooler trans- critical carbon dioxide (CO2) refrigeration cycles with ejector and internal heat exchanger have been examined. In the new improved cycles, an internal heat exchanger is append to the cycles. Also, second inter-cooler in improved cycles, cooled with the refrigeration of the cycle, so that in first c...

Thermal Conductivity of Gases . tivity of Carbon Dioxide Near II . Thermal Conduc - the Critical Poine

~~'he t hermal conductivity of CO 2 has been m.easured in a coaxia l cyl inder cell as a fu nctIO n of pressure over a range of t emperatures from 3.66 to 75.26 °C. P ar Licular attention was given to t he measurement s from 1 to 9 deg C above t he cri tical t emperature at pressures closely spaced to i nclude t he crit ical density. The t hermal co ndu ctivity of CO2(0) near t he cri tical poi...