"Verbal" notes and sketches for marine engineers : a manual of marine engineering practice, intended for the use of naval and mercantile engineer officers of all grades, and students, and is specially compiled for the use of engineer officers preparing for examinations of competency at home or abroad . s ei a> M V ^ -O-i M u # I CO ?-^ p 1 Q n rt Q1^ s W5 s U £ fo tJ- .3•a 3 Q •a Tn o (m ^ a 0) o 0) r- •^ bo .5 5 0)r5< H OT T3 rt 2 c ^ •a wii > 1 3 o c © u h/1 ^ o Ih n O Ui u^ ^ o o S fi) Z KU J3 .s o a. No. II.—Plan of Combined Reciprocating and Turbine Arrangement. With Theoretical
"Verbal" notes and sketches for marine engineers : a manual of marine engineering practice, intended for the use of naval and mercantile engineer officers of all grades, and students, and is specially compiled for the use of engineer officers preparing for examinations of competency at home or abroad . s ei a> M V ^ -O-i M u # I CO ?-^ p 1 Q n rt Q1^ s W5 s U £ fo tJ- .3•a 3 Q •a Tn o (m ^ a 0) o 0) r- •^ bo .5 5 0)r5< H OT T3 rt 2 c ^ •a wii > 1 3 o c © u h/1 ^ o Ih n O Ui u^ ^ o o S fi) Z KU J3 .s o a. No. II.—Plan of Combined Reciprocating and Turbine Arrangement. With Theoretical Horse Powers. (1) Change valve, giving steam either to turbine or condenser direct (2) Reciprocating engine thrust block. (3) Turbine thrust block. [^1 Efihaust trom reciprocating engine to turbine or to condenser.(5) Branch to turbine.(6i Branch to condenser. Appendix 655 Combined Reciprocating Engines and Turbines.—The most recentpractice in mercantile steamers is tlie combination of reciprocatingengines and turbines for vessels of moderate or low speeds. Severalsteamers of this class are at present under construction, and thearrangement consists of two wing triple or quadruple expansionengines exhausting into a central low-pressure ahead turbine, drivinga third shaft and propeller, the revolution speed of the centre turbineshaft being much higher than that of the wing shafts. An alternativedesign is that of two wing low-pressure turbines and one centre re-ciprocating engine. The engines are arrange
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