Engine Cooling Module Sizing Using Combined 1-Dimensional and CFD Modeling Tools

2009 ◽  
Vol 2 (1) ◽  
pp. 1079-1098 ◽  
Author(s):  
Timothy C. Scott ◽  
Dhananjay S. Joshi
Keyword(s):  
Cfd Modeling ◽  
Modeling Tools ◽  
Engine Cooling ◽  
Cooling Module

The Optimization of Vibration Induced by a V6 Engine Cooling Module

2011 ◽  
Author(s):  
Ji Yang ◽  
Zhiyong Hao ◽  
Ruwei Ge ◽  
Liansheng Wang ◽  
Kang Zheng
Keyword(s):  
Numerical Simulation ◽  
Numerical Model ◽  
Automotive Industry ◽  
Optimization Design ◽  
Working Condition ◽  
Steering Wheel ◽  
Engine Cooling ◽  
Simulation Results ◽  
Cooling Module ◽  
Specific Working

The engine cooling module consists of condenser, radiator and fan (CRFM), which has long been recognized as a main source of sound and vibration in the automotive industry. As the engine becomes increasingly compact and powerful, customers gradually have higher expectations for automobile NVH performance than ever before. Thus the reduction of noise and vibration induced by CRFM becomes critical, which can greatly influence overall NVH performance. Combined with experimental and numerical methods, this paper focuses on the identification and optimization of steering wheel (SW) vibration induced by CRFM for a vehicle with V6 engine while engine idling. The numerical model established in this paper, based on Matlab and taking chassis vibration into account, can predict and optimize the vibration of CRFM under specific working condition with the help of energy decoupling and Newmark-Beta methodology. The optimization design of CRFM mainly involves the stiffness, position and angle of isolators. The numerical simulation results are validated experimentally, which can help further design of CRFM.

Energy and Distribution Analysis on Engine Bench

2014 ◽  
Vol 472 ◽  
pp. 301-305
Author(s):  
He Chang ◽  
Xiu Min Yu ◽  
Xian Qu ◽  
Wen Chao Zhang ◽  
Pin Sun ◽  
...  
Keyword(s):  
Control System ◽  
Energy Flow ◽  
Engine Speed ◽  
Working Condition ◽  
Cooling System ◽  
Distribution Analysis ◽  
Balance Test ◽  
Engine Cooling ◽  
Cooling Module ◽  
Combustion Flow

Engine is carried the test on the thermal balance test and the drag test in the vehicle working condition to analysis the distribution of energy from combustion. The heat of coolant that combustion flow into the cooling system in different temperature is not the same. The results show that the engine heat comes into the cooling system ranging minimum at 3000-4000r/min, the effective power output accounts for the total energy up to 25% at full load reaching the maximum. Based on the data, it is established the control system of engine cooling module that can be controlled by the engine speed, torque and power, when the ECU reads the signal to forecast the combustion energy flow to the cooling system in the target vehicle working conditions establish the cooling module heat release control system.

CFD Modeling of NOx Reduction Technologies in Utility Boilers

2000 ◽  
Author(s):  
Marc A. Cremer ◽  
Bradley R. Adams ◽  
David H. Wang ◽  
Michael P. Heap
Keyword(s):  
Nox Reduction ◽  
Electric Utility ◽  
Cfd Modeling ◽  
Nox Formation ◽  
Modeling Tools ◽  
Chemical Mechanisms ◽  
Utility Boilers ◽  
Clean Air ◽  
Nox Control ◽  
Selective Noncatalytic Reduction

Abstract This paper discusses the development and application of CFD modeling tools that have been utilized to assess and design NOx reduction systems that are currently being evaluated by the electric utility industry. Stringent limits on NOx emissions have been imposed by the Clean Air Act Amendments, and a number of NOx reduction technologies are available to help meet these limits including selective noncatalytic reduction (SNCR) and reburning, as well as various combinations of these. This paper discusses the development and implementation of global and reduced chemical mechanisms for NOx formation/destruction into a comprehensive CFD code so that these various options for NOx control can be evaluated. Also, some examples showing the application of these tools to full-scale utility boilers utilizing low-NOx burners, air staging, and SNCR are presented.

Sound localization and quantification analysis of an automotive engine cooling module

2021 ◽  
pp. 116534
Author(s):  
O. Amoiridis ◽  
A. Zarri ◽  
R. Zamponi ◽  
Y. Pasco ◽  
G. Yakhina ◽  
...  
Keyword(s):  
Sound Localization ◽  
Automotive Engine ◽  
Engine Cooling ◽  
Quantification Analysis ◽  
Cooling Module

scholarly journals Experimental verification of design calculations of the internal combustion engine cooling system

2019 ◽  
Vol 179 (4) ◽  
pp. 132-135
Author(s):  
Barbara WORSZTYNOWICZ
Keyword(s):  
Heat Exchangers ◽  
Cooling System ◽  
Combustion Engine ◽  
Special Purpose Vehicle ◽  
Engine Cooling ◽  
Measurement Results ◽  
Calculation Results ◽  
Cooling Module ◽  
Design Calculations ◽  
Made In

The article presents a comparative analysis of calculation results and measurement results of cooling module built on the basis of design calculations. The computations were made in software dedicated to the calculations of heat exchangers. The measurements were performed on a cooling system mounted in a special purpose vehicle together with a combustion engine, which was loaded by an engine dynamometer. Based on the comparison between input data for calculations and results of measurements, differences were found, therefore changes were proposed to be made in the model.

The Interplay of Heat Transfer and Endothermic Chemistry Within a Ceramic Microchannel Reactor

2014 ◽  
Vol 6 (3) ◽  
Author(s):  
Danielle M. Murphy ◽  
Margarite Parker ◽  
Neal P. Sullivan
Keyword(s):  
Heat Transfer ◽  
Steam Reforming ◽  
High Performance ◽  
Reactor Design ◽  
Inert Gas ◽  
Cfd Modeling ◽  
Methane Steam Reforming ◽  
Microchannel Reactor ◽  
Modeling Tools ◽  
Reactor Technology

Ceramic microchannel heat-exchanger and reactor technology is capable of achieving high performance while operating under high-temperature, corrosive, and/or oxidative environments. This work describes two computational fluid dynamics (CFD) modeling studies which examine the coupling of heat transfer and endothermic methane-steam-reforming chemistry within a ceramic microchannel reactor. These modeling tools are then applied to improve microchannel-reactor design and performance. Within the reactor, methane is converted to syngas through steam reforming; the thermal requirements for this endothermic chemistry are provided by heat transfer from hot-inert gas on adjacent layers. Fluid flow, heat transfer, and complex elementary surface chemistry are all simulated using the ANSYS FLUENT models. CFD studies reveal the substantial chemical contribution of reforming on thermal gradients across and within the reactor. Improved control of the reforming temperature is also discovered through stack-design analysis, where an odd number of inert-gas layers are found to create more-uniform reactive wall temperatures. Model results provide insight on the interplay of conjugate heat transfer and chemical kinetics in reactor design.

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