Static thermal stability of superconductors cooled by pool boiling.

Thermal Stability of Superconductors

I INTRODUCTION When a superconduct ing magnet i s quoted t o be " s t a b l e " , t h i s a lmost c e r t a i n l y means t h a t no-matter-what mechanical , thermal o r e l e c t r i c a l p e r t u r b a t i o n induces a t r a n s i t i o n f rom the superconduct ing s t a t e t o t h e normal s t a t e , t he sur round ing medium i s capable o f e x t r a c t i n g t h i s sudden q u a n t ...

Stability Analysis of Two-Dimensional Pool-Boiling Systems

In this paper we consider a model for pool-boiling systems known from the literature. This model involves only the temperature distribution within the heater and models the heat exchange with the boiling medium via a nonlinear boundary condition imposed on the fluid-heater interface. The model allows multiple homogeneous (i.e. spatially constant) and multiple heterogeneous steady-state solution...

‏‎suppression of coke formation in thermal cracking by coke inhibitors‎‏

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Secondary pool boiling effects

Transient pool boiling in microgravityt

Transient nucleate pool boiling experiments using R113 are conducted for short times in microgravity and in earth gravity with different heater surface orientations and subcoolings. The heating surface is a transparent gold film sputtered on a quartz substrate, which simultaneously provides surface temperature measurements and permits viewing of the boiling process from beneath. For the microgr...