Experimental study of convection and radiation interaction in a headlight model using pressure variation

2007 ◽  
Vol 32 (2) ◽  
pp. 521-528 ◽  
Author(s):  
J. Langebach ◽  
S. Senin ◽  
Ch. Karcher
Keyword(s):  
Experimental Study ◽  
Pressure Variation

PRESSURE VARIATION IN REAL ARTERIOVENOUS FISTULA: EXPERIMENTAL STUDY

2020 ◽  
Author(s):  
Jonhattan Ferreira Rangel ◽  
Willyam Brito de Almeida Santos ◽  
Kleiber Bessa ◽  
Thercio Costa
Keyword(s):  
Experimental Study ◽  
Arteriovenous Fistula ◽  
Pressure Variation

Effect of Porous Baffle on Sloshing Pressure Distribution in a Barge Mounted Container Subjected to Wave Excitation

2017 ◽  
Author(s):  
Nasar Thuvanismail ◽  
Deepak J. Surahonne ◽  
Akshay P. Shah ◽  
Sannasiraj S. Annamalaisamy
Keyword(s):  
Experimental Study ◽  
Pressure Distribution ◽  
Pressure Variation ◽  
Wave Excitation ◽  
Wave Flume ◽  
Model Scale ◽  
Excitation Frequencies ◽  
Sloshing Pressure

An experimental study has been carried out to assess the sloshing pressure expected on the tank walls. Three porosities of 15%, 20.2%, 25.2% and baffle wall placed at center of tank is considered. The sloshing tank is fitted into the freely floating barge of model scale 1:43.The barge is kept inside the wave flume in the beam sea conditions. The effects of wave excitation frequencies and on the sloshing pressure variation have been studied in detail and, the salient results are herein reported.

Initial Pressure Influence on Explosion Pressures of Methane-Air Deflagrations in Linked Vessels

2014 ◽  
Vol 936 ◽  
pp. 2130-2134
Author(s):  
Yi Hu Cui ◽  
Jun Cheng Jiang ◽  
Yuan Yu ◽  
Qing Wu Zhang
Keyword(s):  
Experimental Study ◽  
Linear Relationship ◽  
Peak Pressure ◽  
Pressure Rise ◽  
Initial Pressure ◽  
Pressure Variation ◽  
Peak Pressures ◽  
Vented Explosion ◽  
Pressure Evolution

An experimental study on pressure evolution during closed explosion and venting progress of methane–air mixtures ([CH4=10%]) in linked vessels was performed, for systems at various initial pressures (P0=0-0.08MPa). The effects of initial pressure on regularity of pressure variation in vessels were discussed. For the closed explosion in isolated vessel, the higher level of the initial pressure in isolated big vessel is, the larger the peak pressure and rate of pressure rise is, and the peak pressure increases nonlinearly with initial pressure; For closed explosion in linked vessels, the higher initial pressure within the linked vessels system leads to the higher peak pressures in two vessels and there is an approximate linear relationship between them, which is similar to explosion in isolated vessel. For vented explosion in linked vessels at higher initial pressure, venting has poorer effect on protection of the linked vessels.

Experimental Confirmation of Avogadro’s Law for Thermal Radiation

2015 ◽  
Vol 7 (2) ◽  
pp. 1386-1392
Author(s):  
Mikhail Jakovlevich Ivanov ◽  
Vadim Konstantinovich Mamaev ◽  
Igor Viktorovich Tsvetkov ◽  
Grigoriy Borisovich Zhestkov
Keyword(s):  
Experimental Study ◽  
Pressure Drop ◽  
Thermal Radiation ◽  
Pressure Variation ◽  
Experimental Confirmation ◽  
Temperature Range ◽  
Radiation Action ◽  
Increasing Temperature

Experimental study of pressure variation in metal empty sealed container in low vacuum conditions (0.1-10 mbar) for temperature range from 290 to 1490 K is presented. Three characteristic areas of pressure variation were registered: the pressure growth in accordance with Avogadro’s law in the temperature range from 290 to 700-800 K, the pressure drop in the temperature range from 800 to 1300 K and again the intensive pressure increasing in the temperature range from 1300 to 1490 K.  Possible causes of registered pressure variation in sealed container with increasing temperature and then cooling to its original conditions were analyzed. One of the more active causes is thermal radiation action in metal empty sealed container.

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