NOVELTY - The system has a furnace reactor integrated with process instruments and including a stream input provided with a precursor or reactant and optionally an electric heater providing entry and exit points for coolant. A simulation tool is provided with programmed instructions to cause a processor to couple a flame dynamics module (40), a numerical solver (50) and a particle population balance module (60) to optimize and control particle size distribution and production of nanoparticles in the furnace reactor. The numerical solver manages operating data obtained from the flame dynamics module.    USE - System for optimizing and controlling particle size distribution and production of nanoparticle i.e. titania, in a horizontal or vertical electrically heated furnace reactor i.e. flame aerosol reactor, containing a burner, precursor or reactant, coolant stream, stream input with reactant and an electric heater for tires, printing inks, paints and pigments, plastics, optical fibers, catalysts, pharmaceutical powders and cosmetics in a ceramics application, catalysis application, coating application, electronics application, chemical and mechanical polishing application, data storage application and a fuel cell application. Can also be used for carbon black, silica and zinc oxide.    ADVANTAGE - The system predicts effect of burner geometry and design and process operating conditions on the particle size distribution. The system is cost effective and time for optimizing and controlling the particle size distribution and for production of the nanoparticles in the furnace reactor. The system reduces a number of trials or experiments conducted for determining optimum process conditions and burner design and geometry to obtain desired particle characteristics. The system provides details about internal condition of a process equipment and insight into phenomena that occur during the process. The system requires less experimentation, and utilizes less time.    DETAILED DESCRIPTION - The process instruments comprise a precursor flow rate gauze, precursor flow rate pressure gauze, air flow rate gauze, air flow pressure gauze, carrier gas flow rate gauze, carrier gas flow pressure gauze, coolant flow rate gauze, coolant pressure gauze and a coolant flow rate gauze. The process instruments provide the operating data for variables such as precursor flow rate, precursor pressure, air flow rate, air pressure, carrier gas flow rate, carrier pressure and coolant flow rate to the simulation tool with programmed instructions to manage nanoparticle production process. An INDEPENDENT CLAIM is also included for a method for simulating production of nanoparticles in a furnace reactor.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a structure of a simulation tool with programmed instructions for production of nanoparticles in a furnace reactor.    Operating conditions module (10)    Flame dynamics module (40)    Numerical solver (50)    Particle population balance module (60)    Precursor reaction kinetics module (70)    Output (80)