Ejector Design Calculation Xls Fixed !!better!! Page

Estimate R using: = MAX(0.1, 2.5 * (P_s / P_d)^0.85) (conservative approximation)

For critical flow (choked) of steam: [ Dt = \sqrt\fracW_m0.0408 \times P_m ] In Excel (Dt in mm): = SQRT( W_m / (0.0408 * P_m) )

This is where most spreadsheets break. To avoid circular references, calculate velocity directly. ejector design calculation xls fixed

For a fixed nozzle, the motive steam flow is calculated based on the nozzle throat diameter and the motive fluid's pressure and temperature. A common formula for motive flow involves:

#NUM! errors in the nozzle exit velocity or area cells. The Cause: When calculating pressure ratios ( Estimate R using: = MAX(0

Seamlessly switch between SI and Imperial units. Conclusion

) does not exceed the "critical discharge pressure." If it does, the shockwave will move back into the throat, and the ejector will stop suctioning (breaking the vacuum). 4. Structuring Your XLS for Accuracy A common formula for motive flow involves: #NUM

This article explores the fundamental principles of ejector design and provides a comprehensive guide to utilizing an for optimal performance. 1. What is an Ejector Design Calculation XLS?