Steels for pump-compressor pipe

1973 ◽  
Vol 9 (1) ◽  
pp. 50-52
Author(s):  
G. V. Karpenko ◽  
F. N. Tavadze ◽  
I. I. Vasilenko ◽  
D. D. Ebanoidze ◽  
V. P. Koval' ◽  
...  
Keyword(s):  
Compressor Pipe ◽  
Pump Compressor

scholarly journals CAUSES OF DAMAGES OF PUMP-COMPRESSOR PIPE CLUTCHES

2020 ◽  
Author(s):  
V. M. Kushnarenko ◽  
◽  
V. S. Repyakh ◽  
I. Sh. Tavtilov ◽  
S. Yu. Reshetov ◽  
...  
Keyword(s):  
Compressor Pipe ◽  
Pump Compressor

Development of steel and production conditions for pump-compressor pipe and casing pipe

2007 ◽  
Vol 37 (8) ◽  
pp. 673-675
Author(s):  
P. Yu. Gorozhanin ◽  
E. S. Chernykh ◽  
V. A. Khotinov ◽  
S. Yu. Zhukova ◽  
V. M. Farber
Keyword(s):  
Compressor Pipe ◽  
Casing Pipe ◽  
Pump Compressor ◽  
Production Conditions

Characterisation of the Humming-Type Noise and Vibration of the Automotive HVAC System

2019 ◽  
Vol 16 (2) ◽  
pp. 6634-6648
Author(s):  
A. Z. A. Mazlan ◽  
M. H. A. Satar ◽  
M. H. Hamdan ◽  
M. S. Md. Isa ◽  
S. Man ◽  
...  
Keyword(s):  
Vibration Characteristics ◽  
Operating Conditions ◽  
Hvac System ◽  
Frequency Range ◽  
Noise And Vibration ◽  
Power Steering ◽  
Pump Compressor

The automotive heating and ventilating air condition (HVAC) system, when vibrating, can generate various types of noises such as humming, hissing, clicking and air-rushes. These noises can be characterised to determine their root causes. In this study, the humming-type noise is taken into consideration whereby the noise and vibration characteristics are measured from various HVAC components such as power steering pump, compressor and air conditional pipe. Four types of measurement sensors were used in this study - tachometer for rpm tracking; accelerometer for the vibration microphone for the noise; and sound camera for the visualization measurement. Two types of operating conditions were taken into consideration - they were “idle” (850 rpm) and “running” (850-1400 rpm) conditions. A constant blower speed was applied for both conditions. The result shows that the humming noises can be determined at the frequency range of 300-350 Hz and 150-250 Hz for both idle and running conditions, respectively. The vibration of the power steering pump shows the worst acceleration of 1.8 m/s2 at the frequency range of 150-250 Hz, compared to the compressor and air conditional pipe. This result was validated with the 3D colour order and sound camera analyses, in which the humming noise colour mapping shows dominance in this frequency range.  

Air Lubrication Influence on Frictional Resistance Reduction of Multi-Purpose Amphibious Vehicle

2015 ◽  
Vol 74 (5) ◽  
Author(s):  
M. Nakisa ◽  
A. Maimun ◽  
Yasser M. Ahmed ◽  
F. Behrouzi ◽  
Jaswar Jaswar ◽  
...  
Keyword(s):  
Frictional Resistance ◽  
Hydrodynamic Resistance ◽  
Marine Vehicles ◽  
Resistance Reduction ◽  
Ansys Cfx ◽  
Lubrication Layer ◽  
Air Lubrication ◽  
Layer Effect ◽  
Air Cushion ◽  
Pump Compressor

The presentarticle focuses on the hydrodynamic resistance reduction of Multipurpose Amphibious Vehicles (MAV) usingthe air lubrication layer effect. The use of air cushions to support marine vehicles, heavy floating structures and in other operation is well known. The main problem in Multi-purpose Amphibious Vehicles (MAV) is the amount of power needed in order to overcome the hydrodynamic resistance acting on the hull which is included the frictional and pressure resistances. Therefore, more power is needed to move the MAV forward. In this respect, more fuel will be required to operate the amphibious vehicles. This problem could be effectively reduced by the introduction of the air cushion concept. With the air being drawn from top of craft to the cavity below the hull will produce some cushioning effect and also help to reduce skin friction drag. In this paper, air cushion effect will be studied in rigid surface cavity instead of using flexible skirts. This would avoid the problem of high maintenance due to replacement of damaged skirts. Finally, the MAV will be supported using air cavity and bubbles generated by an air pump (compressor and air pressure vessel) to pushes the hull of multi-purpose amphibious vehicle up and reduce the frictional resistance due to draft and wetted surface reduction and layer of air between hull surface and water. This research would be done via CFD (ANSYS-CFX 14.0) and analyzed the hydrodynamic resistance.

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