An Experimental Study of Nozzles and Specific Heat Ratio Effects on Off-Design Performance of Partial Admission Turbines PDF Download
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Author: Robert S. Peterson
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
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The report covers experimental work performed to determine the effect of nozzle divergence angle, specific heat ratio and plug nozzle configuration on turbine nozzle performance. Off design performance was the primary area of investigation. The effect of nozzle divergence angle was investigated with conical and contoured nozzles for two Mach numbers over a range of speed and pressure ratios. The performance of selected plug nozzle geometries was neasured over a range of speed and pressure ratios. The influence on performance of the gas specific heat ratios was experimentally determined by testing the same nozzle with gases of different specific heat ratios. The reduced experimental data is presented in tabular form as well as graphic presentation in several formats. (Author).
Author: Robert S. Peterson
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
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Book Description
The report covers experimental work performed to determine the effect of nozzle divergence angle, specific heat ratio and plug nozzle configuration on turbine nozzle performance. Off design performance was the primary area of investigation. The effect of nozzle divergence angle was investigated with conical and contoured nozzles for two Mach numbers over a range of speed and pressure ratios. The performance of selected plug nozzle geometries was neasured over a range of speed and pressure ratios. The influence on performance of the gas specific heat ratios was experimentally determined by testing the same nozzle with gases of different specific heat ratios. The reduced experimental data is presented in tabular form as well as graphic presentation in several formats. (Author).
Author:
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Category : Aeronautics
Languages : en
Pages : 268
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Author: Robert E. Barber
Publisher:
ISBN:
Category :
Languages : en
Pages : 126
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The object of the study was to obtain information to improve the off-design performance of supersonic turbine nozzles. The scope of study entailed a literature search, a theoretical analysis, and an experimental program. A total of 60 reports were reviewed during the literature search; comments on each are presented. The theoretical study shows that off-design performance can be successfully predicted. The experimental information obtained supports this theory. The ratio of specific heats of the working fluid was found to be influential on the off-design performance. Further study is required, however, before definite conclusions may be reached. (Author).
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Category : Automobiles, Gas-turbine
Languages : en
Pages : 554
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Author: Thomas P. Moffitt
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Category : Turbines
Languages : en
Pages : 26
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Author: Robert E. Barber
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
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The object of the study was to obtain information to improve the off-design performance of supersonic turbine nozzles. Results show that contoured nozzles provide the best performance for turbines which operate at near design pressure ratios or at greater-than-design pressure ratios. For operation at pressure ratios below design, the conical or plug types are superior. The free expansion nozzles generally produce inferior performance as compared to the other types. Axial spacing between nozzle and rotor had little effect on off-design performance. This analysis together with limited test data indicates that the gas ratio of specific heats has a strong effect on off-design nozzle performance. The indication is that performance may be greatly reduced when operating with gases with low ratios of specific heat. The design point performance, however, does not appear to be affected. (Author).
Author: Harry E. Bloomer
Publisher:
ISBN:
Category : Liquid fuels
Languages : en
Pages : 32
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Category :
Languages : en
Pages : 28
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ISBN:
Category : Heat
Languages : en
Pages : 452
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Author:
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ISBN:
Category : Technology
Languages : en
Pages : 1692
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