Effects of Native and Non-Native Resins on Asphaltene Deposition and the Change of Surface Topography at Different Pressures: An Experimental Investigation

2015 ◽  
Vol 29 (9) ◽  
pp. 5487-5494 ◽  
Author(s):  
Farhad Soorghali ◽  
Ali Zolghadr ◽  
Shahab Ayatollahi
Keyword(s):  
Experimental Investigation ◽  
Surface Topography ◽  
Asphaltene Deposition

Surface Topography and Noise Emission in Gearboxes

1997 ◽  
Author(s):  
Naser Amini ◽  
B. G. Rosén
Keyword(s):  
Experimental Investigation ◽  
Total Energy ◽  
Surface Topography ◽  
Noise Generation ◽  
Test Rig ◽  
Noise Emission ◽  
Applied Torque ◽  
Surface Topographies ◽  
Before And After ◽  
Noise Assessment

Abstract This paper, by the experimental investigation, deals with the effect of different surface topographies on noise generation in gears. Results from the noise assessment of one gear before and after honing are discussed. The honing operation was applied to the gear after the grinding. The gear was tested in an actual gearbox, operated in a test rig. Running conditions were systematically changed during the test; however, the same conditions were utilized for the gear before and after honing. The aim of the study was to identify the mechanism of the expected noise reduction, with surfaces being evaluated in 3D. The following results have been obtained: The total energy in the noise decreases significantly. The magnitude of the tooth-mesh frequency dose not change, but the level of its higher harmonics decreases significantly. These reductions are especially significant, when running at higher rotational speeds or when the applied torque is increased.

Asphaltene Deposition under Dynamic Conditions in Porous Media: Theoretical and Experimental Investigation

2013 ◽  
Vol 27 (2) ◽  
pp. 622-639 ◽  
Author(s):  
Taraneh Jafari Behbahani ◽  
Cyrus Ghotbi ◽  
Vahid Taghikhani ◽  
Abbas Shahrabadi
Keyword(s):  
Experimental Investigation ◽  
Porous Media ◽  
Dynamic Conditions ◽  
Asphaltene Deposition

Experimental investigation of asphaltene deposition control by chemical inhibitors

2021 ◽  
pp. 101-179
Author(s):  
Ali Ghamartale ◽  
Shokufe Afzali ◽  
Nima Rezaei ◽  
Sohrab Zendehboudi
Keyword(s):  
Experimental Investigation ◽  
Chemical Inhibitors ◽  
Asphaltene Deposition ◽  
Deposition Control
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