The Theories and Practice of Centrifugal Ventilating MachinesE. & F. N. Spon, 1883 - 81 sider |
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Side iv
... results obtained have varied , and the question to - day still remains unanswered- " Which ven- tilator is the best ; and which , taking all circumstances into account , should I , as a mining engineer , adopt ? " The cause of this ...
... results obtained have varied , and the question to - day still remains unanswered- " Which ven- tilator is the best ; and which , taking all circumstances into account , should I , as a mining engineer , adopt ? " The cause of this ...
Side v
... result , " the hitherto recognised theory having been u2 where u = speed in feet per second , and g = 32.2 . 2 g ' Fourth , That there is an initial depression which each fan * See ' Proceedings of Northern Mining Institute , ' vol ...
... result , " the hitherto recognised theory having been u2 where u = speed in feet per second , and g = 32.2 . 2 g ' Fourth , That there is an initial depression which each fan * See ' Proceedings of Northern Mining Institute , ' vol ...
Side viii
... results may be easily reduced to equal speeds since the volume varies as the revolutions and the depressions as the squares of the speeds . The mine is altered , to say five different conditions : first by obstructing the passages ...
... results may be easily reduced to equal speeds since the volume varies as the revolutions and the depressions as the squares of the speeds . The mine is altered , to say five different conditions : first by obstructing the passages ...
Side 1
... results of which have been published in the later volume of 1878 - being myself a member of that Commission , with M. Aguillon , then Govern- ment Engineer for Alais . The theoretical study which I propose to develop here comprehends ...
... results of which have been published in the later volume of 1878 - being myself a member of that Commission , with M. Aguillon , then Govern- ment Engineer for Alais . The theoretical study which I propose to develop here comprehends ...
Side 2
... result is considerable , but the depres- sion remains in every case theoretically the same . It is not , however , the same with the pneumatic machines of Fabry and Lemielle studied in the first part of this work , their mode of action ...
... result is considerable , but the depres- sion remains in every case theoretically the same . It is not , however , the same with the pneumatic machines of Fabry and Lemielle studied in the first part of this work , their mode of action ...
Andre utgaver - Vis alle
The Theories and Practice of Centrifugal Ventilating Machines Daniel Murgue Uten tilgangsbegrensning - 1883 |
The Theories and Practice of Centrifugal Ventilating Machines Daniel Murgue Uten tilgangsbegrensning - 1883 |
The Theories And Practice Of Centrifugal Ventilating Machines, Tr. And With ... Daniel Murgue Ingen forhåndsvisning tilgjengelig - 2019 |
Vanlige uttrykk og setninger
abscissæ applied Assoc Bessèges Cabany calculation centrifugal force cloth Coal Gas Colliery Commission of Gard Construction covered ventilators Crachet and Picquery Créal crown 8vo curve depression H deprimogen ventilator Devillez direct impulsion Ditto Ditto drawing effective depression equation equivalent orifice évasée chimney experiments expression exterior circumference Fcap figs formula Frameries frictions given Glepin Grand Hornu Guibal chimney Guibal ventilator helicoidal increase initial depression Inst Isometric Projection Jean Bart Lalle Lewis Thompson Machinery manometrical result manometrical yield Manufacture motive power Murgue observations obtain orifice of passage ouïe P. L. SIMMONDS passive resistances plates Practical Treatise proportion radius royal 32mo Second edition Shaft speed of rotation Spons square straight line Tables tangential speed theoretical depression Third edition THOMAS BOX Ventilation of Mines ventilator of Bessèges ventilators by direct ventilators with centrifugal vis viva volume of air volume yielded volumogen ventilator water gauge width
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