The Steam Injector
A theoretical and practical treatise on the design and operation of injectors and on the flow of fluids through and the design of nozzles.

vi ii. ______ CONTENTS. CHAPTER VI . page Wateb Control Arrangements. Adjustable Nozzles—S team and Combining Nozzles Adjust- able—Principles—Automatic Water Regulator— Supplementary Water Inlets—Effects of Supplemeii- tarv Water Supply—Preventing Hot Water Flowing into Hot Well................................69-79 CHAPTER VII . Principles of the Injector. Calculations based on Theoretical Considerations only— Momentum Method—Thermal Method—Theory and Practice—Reasons for Discrepancies—Calculation of Ratio of Water to Steam—Amount of Steam and Water used—Effects of Varying Steam Pressures and Water Temperatures—Efficiency of Injector as a Pump. 80-93 CHAPTER VIII . Nozzle Dimensions. Determining Nozzle Throat Areas from Test Figures— Velocity Method—Momentum Method—Use of Napier’s Formula—Ratio of Steam Nozzle Throat to Delivery Nozzle Throat...............................94-102 CHAPTER IX . Exhaust Steam Injectors. Uses of Exhaust Steam—Principle of Exhaust Injector— Design of Injector—Importance of Overflow Arrange- ments—Limitations—Comparison Between Theory and Practice—Impi’ovenients Effected—Tests—Arrange - ment of Injector—Necessity of Dry Steam—Saving .................................. Effectec l .............................103-110 CHAPTER X . Compound Injectors. Principle—Double Conversion in Two Series Apparatus— Control Arrangements—Tests—Exhaust and Supple- mentary Live Steam Injectors—Temperature Varia- _ tions ....................................117-123 .................................... _............................................._ _________________________________________________________