THE DETERMINATON OF ENERGY SOURCE OPTIMAL PARAMETERS FOR VACUUM EVAPORATION

Abstract

There were suggested in the paper the right principle form of the Vacuum Evaporator (VE) optimal parameters determination. The problem studied on the example of the corresponding device for the food juices concentration by the vacuum conditions. It is especially important for the right comparison the VE traditional energy source using (steam from the special boiler or from the turbine) design and the VE with heat pump as energy source using too. There were working out the special method for different variants of VE optimization and using it for the grounded comparison. The VE for tomato juice concentration was used as the optimization object media. There was fulfilled a whole optimization calculations volume. The optimal steam temperature (it saturation pressure), including the summary expenditures value in the optimal temperature) was discovered from these results. It was presented in the paper the author approach and results obtained on it. Besides it, there were obtained the dependency of minimum expenditures on the inlet and outlet concentrations ratio. It was noted, the pointed value significantly decreased with the pointed ratio decreasing. It was concluded, that there are some conditions, when VE with Heat Pump can be considerable better. Besides it, the authors noted, that the Heat Pump using as the energy source for VE will be especially effective in the cases with limited temperature drop between heating and cooling temperatures.