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Now showing items 21-30 of 268
Forces On Centrifugal Pump Impellers
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1985)
Forces are exerted on a centrifugal pump impeller, due to the asymmetry of the flow caused by the volute or diffuser, and to the motion of the center of the impeller whenever the shaft whirls. Recent work in the measurement ...
Experimental Determination Of The Reverse Flow Onset In A Centrifugal Impeller
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
The importance of problems related to machines operating at partial flow rate led to Societe Hydrotechnique de France (S.H.F.) to form a working group on the subject. In order to better understand partial flow phenomena ...
Air Model Testing To Determine Entrance Flow Fields
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
The designer of the centrifugal pump impellers requires knowledge of the velocity flow field entering the impeller for several reasons. These include an assurance that a reasonably uniform field exists, that the leading ...
Does Impeller Affect NPSHR?
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
The relationship between centrifugal pump impeller diameter, specific speed, noise and NPSH required is presented in this paper. A theoretical explanation is given to explain why NPSHR will significantly vary with impeller ...
Horizontal Process Pump Modifications To Comply With Api-610 Sixth Edition Forces And Moments
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
The forces and moments stiffness criteria established by API-610, Sixth Edition has resulted in a new generation of horizontal process pumps and baseplates, each with increased structural rigidity. Pictures and text ...
Control Of Backflow At The Inlets Of Centrifugal Pumps And Inducers
(Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
Cavitation surge or the interaction of backflow from the inlet of a centrifugal pump or inducer at low flow and low NPSH can be eliminated by the use of backflow recirculator. Experimental results from four pumps demonstrate ...
Using A "Sound Tube" To Measure Noise Of Structural Sources In High Background Noise Environments
(Texas A&M University. Gas Turbine Laboratories, 1980)
Described in this paper is a device referred to as a soundtube, which has been designed to accurately measure only the normal component of the surface velocity of a vibrating structural noise source. Both laboratory and ...
Reverse-Indicator Alignment And Related Subjects
(Texas A&M University. Gas Turbine Laboratories, 1980)
This paper is a discussion of reverse-indicator measurement and other alignment subjects. The basic steps in doing an alignment job and some of the tooling that can be used will be described.
Unique Fan Vibration Problems: Their Causes And Solutions
(Texas A&M University. Gas Turbine Laboratories, 1980)
Operating requirements for new fans demand that greater attention be given to the design of the total installation including everything from the foundation to the ducts. Rotor dynamic analysis without adequate consideration ...
Fouling Of Axial Flow Compressors - Causes, Effects, Detection, And Control.
(Texas A&M University. Turbomachinery Laboratories, 1989)
The fouling of axial flow compressors is a serious operating problem in gas turbines and in process axial flow compressors. Gas turbines are being increasingly used in cogeneration applications and with the large air mass ...