An Experimental and Computational Investigation of Water Condensation inside the Tubes of an Automotive Compact Charge Air Cooler

2016 ◽  
Author(s):  
Robin Y. Cash ◽  
Edward Lumsdaine ◽  
Apoorv Talekar ◽  
Bashar AbdulNour
Keyword(s):  
Computational Investigation ◽  
Water Condensation ◽  
Air Cooler ◽  
Compact Charge

An Experimental and Computational Analysis of Water Condensation Separator Within a Charge Air Cooler

2017 ◽  
Author(s):  
Jeongyong Choi ◽  
Sridev Satpathy ◽  
John Hoard ◽  
Daniel Styles ◽  
Chih-Kuang Kuan
Keyword(s):  
Pressure Drop ◽  
Computational Model ◽  
Fuel Economy ◽  
Low Pressure ◽  
Operating Conditions ◽  
Water Separation ◽  
Gasoline Engines ◽  
Water Condensation ◽  
Air Cooler ◽  
Condensation Model

In recent years, many engine manufacturers have turned to downsizing and boosting of gasoline engines in order to meet the ever more stringent fuel economy and emissions regulations. With an increase in the number of turbocharged gasoline engines, solutions are required to manage knock under a range of operating conditions. The charge air cooler has been introduced to mitigate knock. Moreover, the engine is required to operate with spark retard and/or boost reduction to provide knock reduction leading to reduced fuel economy. Under some operating conditions water can condense in the charge air cooler (CAC). Corrugated plate separators have been widely used in gas-water separation and oil-water separation in many industries including marine diesel engines. However, this sort of separator has not been applied to gasoline engines in vehicles to separate the condensation in the charged air. In this paper, a 1-D condensation model to estimate the potential amount of water condensation and entrainment from the charge air coolers is presented. An approach to designing a unit to separate condensation in the flow from the charge air cooler while maintaining a low pressure drop is described. The design approach provides correlations of separator geometries versus separation and pressure drop performance. The study is developed using a 3-D computational model for analyzing charge air and condensation flow. The model results of the 1-D condensation model and the 3-D computational model have been validated by experiments on an engine-dynamometer based test cell. The set-up incorporates a 4 cylinder gasoline direct injection (GDI) turbocharged engine. An air-to-air charge air cooler is mounted under the engine. The intake air for the engine is supplied using a combustion air unit which enables the operators to control the temperature and humidity. Test conditions have been identified to demonstrate the phenomenon of CAC water condensation. Measurements of water condensation and motion through the system confirm the results of models. A separator has been designed that achieves high separation efficiency and low pressure drop.

Performance Estimation of Charge Air Cooler for Passenger Car

2017 ◽  
Vol 11 (6) ◽  
pp. 414
Author(s):  
S. P. Gadewar ◽  
S. H. Gawande ◽  
S. A. Barhate
Keyword(s):  
Performance Estimation ◽  
Passenger Car ◽  
Air Cooler

HEAT AND MASS TRANSFER AND RESISTANCE CHARACTERISTICS OF EVAPORATIVE AIR COOLER WITH HIGH FINNED-TUBE BUNDLES

2018 ◽  
Vol 49 (17) ◽  
pp. 1705-1720 ◽  
Author(s):  
Qing Zhang ◽  
Xuesheng Wang ◽  
Weicheng Ruan ◽  
Qinzhu Chen ◽  
Zilong Liu
Keyword(s):  
Mass Transfer ◽  
Heat And Mass Transfer ◽  
Finned Tube ◽  
Tube Bundles ◽  
Air Cooler

COMPUTATIONAL INVESTIGATION OF DIMPLE EFFECTS ON HEAT TRANSFER AND FRICTION FACTOR IN A LAMILLOY COOLING STRUCTURE

2015 ◽  
Vol 22 (2) ◽  
pp. 147-175 ◽  
Author(s):  
Lei Luo ◽  
Chenglong Wang ◽  
Lei Wang ◽  
Bengt Sunden ◽  
Songtao Wang
Keyword(s):  
Heat Transfer ◽  
Friction Factor ◽  
Computational Investigation

In silico ADME, Bioactivity and Toxicity Parameters Calculation of Some Selected Anti-Tubercular Drugs

2016 ◽  
Vol 6 (6) ◽  
pp. 77 ◽  
Author(s):  
Shashank Shekhar Mishra ◽  
Chandra Shekhar Sharma ◽  
Hemendra Pratap Singh ◽  
Harshda Pandiya ◽  
Neeraj Kumar
Keyword(s):  
Antibiotic Resistance ◽  
In Silico ◽  
Bacillus Calmette Guerin ◽  
Computational Investigation ◽  
Pharmacological Profile ◽  
In Silico Toxicity ◽  
Is Development ◽  
Potent Drug ◽  
Minimal Resistance ◽  
Parameters Calculation

Tuberculosis, one of the most frequent infectious diseases, is caused by a mycobacterium tuberculosis bacteria and it infects several hundred million people each year, results in several million deaths annually. Because there is development of antibiotic resistance, the disease becomes incurable. So, in the absence of effective and potent drug with minimal resistance problems, the mortality rate increases annually. In this computational investigation, we performed In-silico ADME, bioactivity and toxicity parameters calculation of some selected anti-tuberculosis agents. To design a new molecule having good pharmacological profile, this study will provide the lead information.Key Words: Tuberculosis (TB), Bacillus Calmette-Guerin vaccine, TPSA, In Silico toxicity

Experimental and computational investigation of supersonic impinging jets

AIAA Journal ◽  
2002 ◽  
Vol 40 ◽  
pp. 599-609 ◽  
Author(s):  
F. S. Alvi ◽  
J. A. Ladd ◽  
W. Bower
Keyword(s):  
Impinging Jets ◽  
Computational Investigation

Initial Computational Investigation Toward Passive Transition Delay Using a Phononic Subsurface

2021 ◽  
Author(s):  
Caleb J. Barnes ◽  
Carson L. Willey ◽  
Kevin Rosenberg ◽  
Albert Medina ◽  
Abigail T. Juhl
Keyword(s):  
Computational Investigation ◽  
Passive Transition ◽  
Transition Delay
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