Summary: The subject of the project is mathematical modelling and
simulation of process steady states and dynamics in utility steam
generators as well as research of certain phenomena in two-phase flow. The
research is performed in three directions: improvement of the code for
steady state and dynamic simulation of once-through steam generator
water-vapour channel dedicated to research of thermal power block control.
Improvement of three dimensional mathematical model of steam generator
furnaces comprised of turbulent flue gas flow model, and models of
combustion and relative heat transfer. Completion of experimental
two-phases flow circulation loop (rated power 100kW, pressure range up to
200bar) and research of tube-wall temperature pulsation in regime of
stationary forced flow evaporation.
Keywords: modeling and simulation, heat and mass transfer, steam generator, furnace
Research goals: - Development of the three-dimensional mathematical
model of the flow, combustion and heat exchange processes in the gas and
oil fired utility steam generator furnaces - Investigation of different
discretization methods and numerical procedures applied to solution of the
former model - Development of models simulation software on available
computers - Improvement of the one-dimensional mathematical model of the
thermohydraulic process dynamics in the once through steam generator tube
system and the numerical procedure of its solution. The goal is to improve
overall performances (speed, accuracy, robustness) of the developed
simulation code, dedicated to the research of thermal power plant control.
- Development of the mathematical model of the thermohydraulic process
dynamics in the high pressure feedwater heater cascade, in order to solve
control problems. - Completing the experimental two-phase flow test loop
for the research of the boiling-water phenomena at higher pressure and
forced water flow with emphasis on dry-out phenomena and the evaporator
tube wall temperature fluctuation in the boiling zone. The maximum electric
power of the test loop is 100 kW, working pressure is up to 200 bar and
the mass flow density through the test loop is up to 1000 kg/m2s.
Development of the software for computer-aided experiments monitoring and
data acquisition. Other information about the project.