Numerical simulation of soda ash drying process in pneumatic drying system with industrial scale
In this paper a mathematical model for the soda ash drying process in a pneumatic dryer was presented. The model presents a macroscopic aspect of the drying process, for a two-phase, gas-solid system. The model is based on mass and heat transfer between the gas phase and the particle, movement of air and particles through the system, and geometric ...
By Edisa Papraćanin, Nisad Avdić, Abdel Đozić, Ervin Karić
Simulation of a single-stage evaporator system integrated with a mechanical vapor compressor for concentrating the electrolytic system KNO3 – H2O
A simulation of a single-stage evaporator system integrated with a mechanical com- pressor for a case study (concentrating the electrolytic system KNO3 – H2O) was performed. A mathematical model of the subsystem of a single-stage evaporator, a mechanical compressor, and superheated steam seeding is presented. Microsoft Excel with VBA (Visual ...
By Ervin Karic, Rejha Alic
Determination and Application of Improved Kinetic Parameters for Simulation of Maleic Anhydride Synthesis in Industrial Fixed- Bed Reactor
The aims of this study were to determine improved kineticparameters in five kinetic models for oxidation of n-butane intomaleic anhydride in an industrial fixed-bed reactor, and tosimulate the reactor performance. On the basis of the measuredprocess parameters, inlet and outlet concentrations of n-butanewere calculated and then used to fit the kine...
By Ervin Karić, Ivan Petric, Vladan Mićić
Composting kinetics for mixture of poultry manure and wheat straw based on volatile solids content
The aim of this study was to determine the composting kinetics for mixture ofpoultry manure and wheat straw based on the volatile solids content.Experimental data was fitted with the first-order and the nth-order kinetic model.The nth-order kinetic model showed better prediction performance than the firstorderkinetic model. For the first-order kine...
By Ervin Karić, Ivan Petrić, Nesib Mustafić
Application of validated mathematical model of composting process for study the effect of air flow rate on process performance
The objectives of this study were to develop and validate the mathematicalmodel (kinetic and reactor model) of composting process, as well to usedvalidated model in order investigate the effects of the air flow rate on organicmatter conversion, carbon dioxide concentration and mixture temperature. Themathematical model incorporated two microbial po...
By Nesib Mustafić, Ivan Petrić, Ervin Karić