These are more indicative of the response of a specific ejector to changes in inputs. Therefore ejector curves at fixed ejector geometry are calculated at the design discharge pressure and an increased discharge pressure (see 3.2). Thus the results in the tables above for different gas flow rates, pressures or temperatures do not represent the performance of a specific ejector. If for example the entrained gas flow rate is changed, the mixing diameter will also change – which will have some impact on the discharge pressure. The program calculates the best nozzle and mixing diameters based for the input values. Mixing section diameter is a function of the preceding and entrained gas flow rate, pressure, temperature & molecular weight. Motive nozzle diameter is a function of motive gas flow rate, pressure, temperature & molecular weight. The nozzle and mixing section diameter are calculated. The key results and supplementary results are shown below.
In the updated revision of the software, flow rate input units should be selected as either kg/hr or Nm3/hr. The inputs required are shown in the table below. Please understand that this program is for your use only and prevent access by any outside party. The USER CODE will be supplied to you separately and must be entered every time you run the program. Transmitted as XXX.jpg to allow electronic transmission. This is a Visual Basic program with Interactive forms.
