The paper discusses the fundamental relationships between turbine overspeed and the time constant of the rotor. The amount of overspeed is shown to be related not only to the time lag of the emergency tripping devices, but ...

As the decade of the 1970's gradually unfolds, it becomes clear that it will be a decade of challenge for many of you who are engaged in the Process, Pipeline, or Electric utility Industries. The changing 11orld supplies ...

Optical alignment is a technique which has proven its usefulness in original installation, repair and maintenance of turbomachinery. Optical alignment, sometimes referred to as optical tooling utilizes precision optical ...

This paper deals with the new developments in compressor aerodynamics. The emphasis in this paper is on the various aerodynamic developments that have led to better compressor performance. An outline of a new technique to ...

Sixteen centrifugal stages in two cases driven by a Rolls Royce AVON jet and a single stage power turbine compress natural gas of Mol Weight 23 from a pressure of 65 to 2000 psia. The rotating train, the coolers, the ...

This will be an exploration of the relevant factors involved in successfully applying gear drives to high speed rotating machinery. Relationships of internal design features to external equipment and couplings is defined ...

In the past instrumentation available to the diagnostician for analysis of machinery problems was limited to swept narrowband filter systems and, less important, parallel narrowband filter systems. Although useful for ...

This paper presents a cursory review of some of the recent work that has been done in turbine aerodynamic research at NASA-Lewis Research Center. Topics discussed include the aerodynamic effect of turbine coolant, high ...

There are many approaches to the design of thrust and journal hearings for high speed turbomachinery, ranging from the simplest flat thrust bearings and plain journal hearings to the very sophisticated multiwedge designs ...