The process of direct steam generation was studied in this work
within a parabolic trough solar collector in order to generate
electricity. The study was based on the equations of a two phase
flow to study heat transfer in the collector's tube. Th
e study showed
a possibility to reach an effective model to study the performance of
this type of solar collectors which will aid in the understanding of
the working principle of power plants and to research further
towards new control strategies of solar power plants or towards the
hybridization with other types of power plants.
In this paper, we studied flow and boiling regimes of two-phase forced flow in
vertical tubes to determine the dominated flow and boiling regime at any region of tube.
Studied Ranges of main parameters were: Pressure. Because
of absence an accurat
e method of flow and boiling regimes prediction, some of
experimental equations of two phase flow (liquid-steam) had been used to determine the
dominated flow and boiling regime in vertical tubes and build algorithm written by Matlab
environment describes these regimes. An analytical study was provided of the resulted
diagrams and suggestions were given for next studies .
محتوى البخار الكتلي
نظام الجريان
نظام الغليان
جريان ثنائي الطور
السرعة الكتلية
الغليان السطحي
الغليان النووي
محتوى البخار الحقيقي
الإنتالبي النسبي
Flow regime
boiling regime
Two phase flow
mass velocity
surface boiling
nucleate boiling
actual steam content
mass steam content
relative enthalpy
المزيد..
