The Thermo-dynamic Principles of Engine DesignC. Griffin, limited, 1907 - 143 Seiten |
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Seite 53
... stage . The effect of doing this in three stages is shown by fig . 27 , where 23 represents the approximately adiabatic compression in the first stage , 34 represents the cooling effect before the air is compressed again adiabatically ...
... stage . The effect of doing this in three stages is shown by fig . 27 , where 23 represents the approximately adiabatic compression in the first stage , 34 represents the cooling effect before the air is compressed again adiabatically ...
Seite 54
L. M. Hobbs. being cooled down to atmospheric temperature between each stage , the points 2461 will all lie on one isothermal ; and the saving of work by staging the adiabatic compression F A 3 2 FIG . 27. - Work saved by " Stage ...
L. M. Hobbs. being cooled down to atmospheric temperature between each stage , the points 2461 will all lie on one isothermal ; and the saving of work by staging the adiabatic compression F A 3 2 FIG . 27. - Work saved by " Stage ...
Seite 55
... stage Compression . V2 per lb. becomes , say , only v , at the same pressure P2 Hence when this air is made to do work in a motor , we get— Work done by motor per lb. of air n = U ' : - ( P2o2 — P11 ) ; n - 1 CT11-211 ) for p¿1⁄2 = CT ̧ ...
... stage Compression . V2 per lb. becomes , say , only v , at the same pressure P2 Hence when this air is made to do work in a motor , we get— Work done by motor per lb. of air n = U ' : - ( P2o2 — P11 ) ; n - 1 CT11-211 ) for p¿1⁄2 = CT ̧ ...
Seite 56
... stage when the work of compression is a minimum ; for between each stage the air is cooled down to the atmospheric temperature T1 . When the air at the pressure p , and temperature T1 is used to drive a motor , working in two stages ...
... stage when the work of compression is a minimum ; for between each stage the air is cooled down to the atmospheric temperature T1 . When the air at the pressure p , and temperature T1 is used to drive a motor , working in two stages ...
Seite 57
... stages , the same conditions hold for least work as for the two - stage process ; that is to say , we must have P2 P3 P4 = = P1 P2 P3 Pn = = Pn - 1 and the rise of temperature during each stage will be the same . Hence , knowing the ...
... stages , the same conditions hold for least work as for the two - stage process ; that is to say , we must have P2 P3 P4 = = P1 P2 P3 Pn = = Pn - 1 and the rise of temperature during each stage will be the same . Hence , knowing the ...
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Häufige Begriffe und Wortgruppen
adiabatic expansion angle area ABCD atmospheric pressure boiler British Thermal Units BRYAN DONKIN calculated Carnot cycle CHARLES GRIFFIN clearance coefficient of performance cold body combustion condenser constant pressure constant volume Crown 8vo cycle of operations drop in pressure dry steam dryness fraction efficiency ejector energy evaporation EXETER STREET flow fluid foot-lbs funnel furnace gas-engine gases given Handsome Cloth heat received heat rejected heat-engine Hence impulse turbine indicator diagram injector isothermal Large 8vo Latent Heat LONDON CHARLES GRIFFIN Marine maximum mechanical motor obtained orifice Otto cycle p₂ perfect gas peripheral speed pipe piston practice pressure p₁ PROF pump ratio reaction turbine refrigerating represented Revised rotating vanes rotating wheel SECOND EDITION Sensible Heat Ships single-stage specific heat stage steam pressure steam velocity STRAND stroke volume substance supplied T₁ T₂ thermo-dynamic turbine wheel valve vapour velocity of discharge volume per lb wheel vanes
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Seite 26 - A PRACTICAL TREATISE ON BRIDGE-CONSTRUCTION: Being a Text-Book on the Construction of Bridges in Iron and Steel. FOR THE USE OF STUDENTS, DRAUGHTSMEN, AND ENGINEERS. BY T. CLAXTON FIDLER, M. INST. CE, Prof of Engineering, University College, Dundee".The new edition of Mr.
Seite 32 - Lubricants, their Sources, Preparation, and Properties.— VI. Physical Properties and Methods of Examination of Lubricants. — VII. Chemical Properties and Methods of Examination of Lubricants.— VIII. The Systematic Testing of Lubricants by Physical and Chemical Methods.— IX. The Mechanical Testing of Lubricants.— X. The Design and Lubrication of Bearings.— XI. The Lubrication of Machinery.— INDEX. " Contains practically ALL THAT IS KNOWN on the subject. Deserves the careful attention...
Seite 50 - THIRD EDITION, Revised, Enlarged, and Re-issued. Price 6s. net. A SHORT MANUAL OF INORGANIC CHEMISTRY. BY A. DUPRE, Ph.D.,- FRS, AND WILSON HAKE, Ph.D., FIO, FCS, Of the Westminster Hospital Medical School. "AN EXAMPLE OF THE ADVANTAGES OF THE SYSTEMATIC TREATMENT of a Science over the fragmentary style so generally followed. Br A LONG WAV THE BEST of the small Manuals for Students.
Seite 35 - A MANUAL OF APPLIED MECHANICS : Comprising the Principles of Statics and Cinematics, and Theory of Structures, Mechanism, and Machines. With Numerous Diagrams. Crown 8vo, Cloth. SEVENTEENTH EDITION. 12s. 6d, A MANUAL OF CIVIL ENGINEERING : Comprising Engineering Surveys, Earthwork, Foundations, Masonry, Carpentry, Metal Work, Roads, Railways, Canals, Rivers, Waterworks, Harbours, &c.
Seite 42 - CONTENTS.— Resolution and Composition of Forces— Work done by Machines and Living Agents — The Mechanical Powers: The Lever; Derricks as Bent Levers— The Wheel and Axle : Windlass ; Ship's Capstan ; Crab Winch— Tackles : the "Old Man...
Seite 34 - A POCKET-BOOK of ELECTRICAL RULES and TABLES. For the Use of Electricians and Engineers. By JOHN MUNRO, CE, and Prof.
Seite 31 - TRAVERSE TABLES: Computed to Four Places of Decimals for every Minute of Angle up to 100 of Distance. For the Use of Surveyors and Engineers. BY RICHARD LLOYD GURDEN, Authorised Surveyor for the Governments of New South Wales and Victoria, *»* Published with the Concurrence oj the Surveyors- General for New South Wales and Victoria. "Those who have experience in exact SURVEY-WORK will best know how to appreciate the enormous amount of labour represented by this valuable book.
Seite 38 - II. Classification of Steel Ships. III. Considerations in making choice of Type of Vessel. — Framing of Ships. IV. Strains experienced by Ships. — Methods of Computing and Comparing Strengths of Ships. V. Construction of Ships. —Alternative Modes of Construction.
Seite 28 - GENERAL CONTENTS. — Classification of different Types of Boilers — 425 Experiments on English and Foreign Boilers with their Heat Efficiencies shown in Fifty Tables— Fire Grates of Various Types — Mechanical Stokers — Combustion of Fuel in Boilers — Transmission of Heat through Boiler Plates, and their Temperature — Feed Water Heaters, Superheaters, Feed Pumps, &c.
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