) , which is the mass flow of entrained vapor divided by the mass flow of motive steam. (Compression Ratio > 1.8):
| A | B | C | D | | --- | --- | --- | --- | | | Value | Formula (hidden) | Unit | | Motive Press | 5.0 | | bara | | Suction Press | 0.10 | | bara | | Disch Press | 1.10 | | bara | | W_s (suction) | 100 | | kg/h | | Output | | | | | Comp Ratio | 11.0 | =C4/C3 | | | Entrainment R | 0.35 | =2.5*(C3/C4)^0.85 | | | W_m motive | 285.7 | =C5/C8 | kg/h | | Nozzle Throat Dt | 3.76 | =SQRT(C9/(0.0408*C2)) | mm | | Diffuser Throat | 16.92 | =C11*4.5 | mm | | Check | Status | | | | Validation | OK | =IF(C4>=C3,"ERROR","OK") | |
By adopting these recommendations, engineers can further enhance the ejector design calculation XLS fixed process, resulting in more efficient and effective ejector designs.
Then: W_m = W_s / R (kg/h)
A professionally fixed ejector calculation spreadsheet must include the following seven modules. Each module is "locked" for input validation but open for output review.
: A specific technical tool from Inter.net designed for Lempor ejectors used in steam locomotives, solving complex flow equations through iterative trial-and-error. ⚙️ Key Design Formulas Ejector design often relies on the Entrainment Ratio ( ERcap E cap R
