Претраживање
Приказ резултата 11-20 од 23
Research on the shell-side thermal performances of heat exchangers with helical tube coils
(Pergamon-Elsevier Science Ltd, Oxford, 2012)
This paper presents the results of experimental research on shell-side heat transfer coefficient concerning 3 heat exchangers with helical coils. Measurements were carried in laboratory and the following correlation was ...
Techno-economic optimization of plant for raw ethanol production based on experimental data
(Pergamon-Elsevier Science Ltd, Oxford, 2014)
This paper concerns techno-economic optimization of the production process of raw ethanol in a continuous distillation column as a part of the plant for production of rectified alcohol. Optimization was performed in order ...
Numerical investigation of pulverized coal jet flame characteristics under different oxy-fuel conditions
(International Journal of Heat and Mass Transfer, 2013)
Pulverized coal combustion in mixture of oxygen and recycled flue gasses, known as oxy-fuel combustion, is considered as one of the several possible alternatives to conventional pulverized coal combustion. Switching from ...
Sensitivity analysis of different kinetic factors for numerical modeling of Serbian lignite devolatilization process
(International Journal of Heat and Mass Transfer, 2014)
Numerical modeling is widely used tool for prediction of combustion processes. Computational Fluid Dynamics - CFD models use three kinetic rates for description of the coal combustion processes: coal devolatilization, ...
Numerical investigation of processes in the lignite-fired furnace when simple gray gas and weighted sum of gray gases models are used
(Pergamon-Elsevier Science Ltd, Oxford, 2013)
Comparison of the numerical investigation results was carried out when the simple gray gas (SGG) and weighted sum of gray gases (WSGG) models are used to model the radiative properties of the gas phase inside the lignite ...
Cavitating flow characteristics, cavity potential and kinetic energy, void fraction and geometrical parameters - Analytical and theoretical study validated by experimental investigations
(Pergamon-Elsevier Science Ltd, Oxford, 2018)
Analytical and theoretical discussions validated by experimental investigations are presented to comprehensively study the relation between the geometrical parameters, such as the dimensionless standoff distance and nozzle ...
Numerical simulation of two-dimensional kettle reboiler shell side thermal-hydraulics with swell level and liquid mass inventory prediction
(Pergamon-Elsevier Science Ltd, Oxford, 2014)
Simulation and analyses of two-phase flows across tube bundles is important for design and safety analyses of various types of steam generators and kettle reboilers. The information about the shell side thermal hydraulics ...
Numerical modeling of in-furnace sulfur removal by sorbent injection during pulverized lignite combustion
(Pergamon-Elsevier Science Ltd, Oxford, 2019)
Results of the study on SO2 reduction in a utility boiler furnace by means of furnace sorbent injection are presented in this paper with analysis of major influential parameters. The Ca-based sorbent injection process in ...
Numerical study of co-firing lignite and agricultural biomass in utility boiler under variable operation conditions
(Pergamon-Elsevier Science Ltd, Oxford, 2021)
The co-combustion of biomass and coal in a utility boiler could provide cleaner power production and ensure sustainable utilization of the solid fuels. This paper aims to numerically investigate complex pro-cesses in the ...
New insights into physics of explosive water boiling derived from molecular dynamics simulations
(Pergamon-Elsevier Science Ltd, Oxford, 2021)
In this paper the dynamics of explosive boiling of a 72 angstrom thick water film on the hot copper substrate with the plain surface is analysed. The analyses are based on the results of molecular dynamics (MD) simulations ...