A Simulation study of cooling system for heavy duty diesel engine

Adsul, Pranita; Kotebavi, Vinod; Bedekar, Sanjeev; Mishra, Ashwini Kumar

doi:10.1051/matecconf/201817202002

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Meanwhile, this approach has become widely used in many different fields due to its short-term development cycle, and obtained remarkable achievements. [10][11][12][13][14] Due to the CFD method's advantage of the effectiveness in providing a precise prediction of internal flow field pattern and heat transfer, many researchers take full advantage of CFD technology to conduct the coolant flow analysis and cooling performance improvement of engine cooling water jacket. For example, Fontanesi et al 15 investigated the internal coolant flow characteristics of multi-cylinder cooling water jacket of a diesel engine and conducted the experimental measurement for verification of simulation, proved the accuracy of CFD simulation.…”

Section: Introductionmentioning

confidence: 99%

CFD modelling on flow field characteristics of engine cooling water jacket and its cooling performance improvement based on coolant transport path analysis method

Tan

Yuan

Huang

2022

Proceedings of the Institution of Mechanical Engineers, Part A:

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Reasonable coolant flow distribution and its heat transfer coefficient (HTC) distribution are of great significance to the cooling performance of water-cooled engine. Therefore, the present paper proposes a coolant transport path analysis method aiming at analyzing coolant velocity distribution and optimizing the coolant flow characteristics of water jacket based on Computational Fluid Dynamics (CFD), with particular emphasis on the assessment of coolant flow velocity distributions of high-temperature area of engine head water jacket. First, the coolant flow characteristics of a single-cylinder water jacket is investigated and it is found that coolant velocity of exhaust bridge is less than 1.5 m/s and the HTC distribution of water jacket under three flow conditions of 15 L/min, 25 L/min and 35 L/min have a small area reaching 5000 W/(m2∙K). Some areas have no coolant flow and the mass flowrate distribution of each gasket hole is unreasonable, proving that original water jacket structure has some shortcomings and need to be optimized. Based on coolant transport analysis, an improved design of the single cylinder water jacket is proposed and HTC distribution of improved water jacket meet cooling requirements that HTC in high heat load area are above 5000 W/(m2∙K). The coolant transport path analysis method for optimizing coolant flow characteristics of water jacket proves to be an effective way through successful application and remarkable achievement in the other single-cylinder water jacket and two-cylinder water jacket that coolant flow distribution become more reasonable and coolant velocity of high-temperature areas are bigger than 1.5 m/s.

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Section: Introductionmentioning

confidence: 99%

CFD modelling on flow field characteristics of engine cooling water jacket and its cooling performance improvement based on coolant transport path analysis method

Tan

Yuan

Huang

2022

Proceedings of the Institution of Mechanical Engineers, Part A:

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“…Mehdipour et al 17 numerically simulated the heat transfer in the cooling duct of the internal combustion engine and compared this with experimental results. Adsul et al 18 simulated the engine of a heavy duty six‐cylinder diesel vehicle using the GT‐SUITE software one‐dimensionally. After comparing the model results with those of experiments, they found the model accurate enough to be employed for optimizing the engine performance.…”

Section: Introductionmentioning

confidence: 99%

Investigating the effect of nanofluids of aluminum oxide and titanium dioxide on the heat transfer of the engine cooling coil by considering the boiling phenomenon

Senejani

Mehdipour

2020

Heat Trans

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Automotive industries are constantly seeking to produce more powerful and efficient engines. One of the factors affecting engine efficiency is the engine's temperature. Several research studies have been done to control and reduce engine temperature. The generated heat due to combustion of fuel in the engine should be cooled down to avoid engine heat up. In the present study, the cooling circuit of a real‐scale internal combustion engine is simulated using GT‐suite software along with a proposed model. Also, in this study, a model for simulating boiling and the effect of employing nanofluids as a coolant is presented. Initially, the performance of the proposed model is examined in a channel. The results show that the proposed model increases accuracy by about 20% compared with the default GT‐suit model, which ignores boiling. The simulation results show that the presence of Al2O3 and TiO2 nanofluids up to 2 vol% reduces the engine wall temperature by 7% and 6.7%, respectively.

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3D CFD Simulation of Hydraulic Test of an Engine Coolant System

Ballani¹,

Bhagat²,

Srinivasan³

et al. 2022

SAE Int. J. Adv. & Curr. Prac. in Mobility

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<div class="section abstract"><div class="htmlview paragraph">Designing an efficient vehicle coolant system depends on meeting target coolant flow rate to different components with minimum energy consumption by coolant pump. The flow resistance across different components and hoses dictates the flow supplied to that branch which can affect the effectiveness of the coolant system. Hydraulic tests are conducted to understand the system design for component flow delivery and pressure drops and assess necessary changes to better distribute the coolant flow from the pump. The current study highlights the ability of a complete 3D Computational Fluid Dynamics (CFD) simulation to effectively mimic a hydraulic test. The coolant circuit modeled in this simulation consists of an engine water-jacket, a thermostat valve, bypass valve, a coolant pump, a radiator, and flow path to certain auxiliary components like turbo charger, rear transmission oil cooler etc. A commercial CFD software, Simerics-MP+®, is used to simulate the hydraulic test for two different positions of the poppet valve of the thermostat, viz. a closed position and an 50% opening, at different speeds of the engine. In the CFD model, the complete geometrical details of water-jacket, thermostat, and pump are considered. The remaining components are approximated as pipes with flow resistance models to account for flow and pressure drop at different engine speeds. Firstly, the standalone pump performance is validated in the operating regime of interest, followed by the calibration of the resistance models for the simplified components. At the end, complete system level 3D simulations are conducted and validated for the above mentioned two positions of the poppet valve. The flow distribution and pressure drop across different components show good comparison with the hydraulic test data within 7% error band.</div></div>

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A Simulation study of cooling system for heavy duty diesel engine

Cited by 4 publications

References 10 publications

CFD modelling on flow field characteristics of engine cooling water jacket and its cooling performance improvement based on coolant transport path analysis method

CFD modelling on flow field characteristics of engine cooling water jacket and its cooling performance improvement based on coolant transport path analysis method

Investigating the effect of nanofluids of aluminum oxide and titanium dioxide on the heat transfer of the engine cooling coil by considering the boiling phenomenon

3D CFD Simulation of Hydraulic Test of an Engine Coolant System

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