1 edition of Computer code for off-design performance analysis of radial-inflow turbines with rotor blade sweep found in the catalog.
Distributed to depository libraries in microfiche.August 1983--Cover.STAR category 07.Includes bibliographical references.
|Statement||National Aeronautics and Space Administration, Scientific and Technical Information Branch|
|Publishers||National Aeronautics and Space Administration, Scientific and Technical Information Branch|
|The Physical Object|
|Pagination||xvi, 96 p. :|
|Number of Pages||49|
|2||AVRADCOM technical report -- 83-C-4.|
|3||NASA technical paper -- 2199.|
nodata File Size: 10MB.
The resulting estimated mass of the system is 1912 kg, which is significantly higher than the original cruise design point mass, 1396 kg. The second part of the work is dedicated to characterize the secondary far field pattern. Based on this method, a meanline pump-flow code PUMPA was written that can predict the performance of pumps at off-design operating conditions, given the loss of the diffusion system at the design point.
Insight is also gained into the limiting channel diffusion values for typical centrifugal cascade performance, together with the influence of viscous effects, as seen in deviations from ideal flow predictions. 6 Case study: Subsonic ORC turbine. Abidat, Design and testing of a highly loaded mixed flow turbine.
After the parametric study, and the definition of the design conditions, the off-design analysis is carried on, comparing the main characteristics of the intercooled-regenerated turboprop with those of a conventional engine.
Static aeroelastic effects, which mask Reynolds number effects, were observed. Similarly, the choice of working fluid can also significantly impact com-ponent design. This process raises the temperature of the working fluid to the saturation temperature, fully evaporates the fluid before heating it to a superheated state 2 to 3. The map-generation capabilities of the code provide the information needed for interfacing with a rocket engine system modeling code.
The exergy, X, is defined as the amount of useful work that can be extracted from a particular fluid stream and is defined using Equation 2. 2 Structure of the ORC model. Overall stage performance and turbine blade surface static to inlet total pressure ratios were calculated by using a quasi-three dimensional inviscid code.
This study presents both experimental data and numerical simulations that were used as complementary approaches to study these dynamic solicitations.2012; Quoilin et al. These perspectives allow the identification of target split times that are required to achieve a certain final place in a race and the opportunity to make evidence-based decisions about race tactics in order to optimise performance.
The rotor inletslip factor correlation was replaced by one that includesrotor blade sweep. The use of a mixed flow turbine instead of a radial one leads to better aerodynamic efficiency. Demirkaya, Omer; Mazrou, Refaat Al 2007-10-01 In this paper, we present a set of image analysis tools to calculate the performance parameters of gamma camera systems from test data acquired according to the National Electrical Manufacturers Association NU 1-2001 guidelines.
This is done by selecting a working fluid to match the available heat source.2010however this area is still in development. The following information is included: loss model estimation of lossesthe analysis equations, a description of the input and output data, the FORTRAN program listing and list of variables, and sample cases.
Stator—rotor interaction effects seem thus to be of minor relevance for the fluid-dynamic design of these turbines.
The condensation pressure should be above atmospheric pressure to avoid the re-quirement of operating the condenser under a vacuum• 3 Expanders for organic Rankine cycles.
More recently, SSME test results provided by the Technology Test Bed TTB program have indicated significant discrepancies between PBM flow and temperature predictions and TTB observations.