1D/3D Coupling Calculation Analysis on Bus Cooling System

Shen, Kai; Li, Feihong; Ni, Jimin

doi:10.4236/epe.2014.614048

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…The main goal is to investigate the distribution of temperature and air flow with various parameters inside the passenger compartment in the steady-state conditions. Kai Shen et al [24] have accomplished the task of analysis of flow field and have concluded that the rear engine cabin of the passenger car is much more complicated than the frontal cabin, the error is very lager if a typical 1D model is used in front engine cabin to simulate the cooling system. The Studies show that only the one-dimensional and three-dimensional coupling calculation method could make the results of the calculation of rear engine bus cooling system more accurate and it is much more suitable for engineering development and application.…”

Section: Methodsmentioning

confidence: 99%

A Comprehensive Understanding of Airflow in Non Air conditioned Bus Coaching System

Kubsad,

et al. 2020

IJEAT

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Bus is a Major mode of transport in India and the passenger safety is significant during the travel. This Comprehensive comprehension on the literatures available discusses various parameters used to improve the Vehicle Design, Safety, Fuel Efficiency and decrease in drag of the vehicle. The outcomes obtained from CFD investigation is tabulated, and the exploratory outcomes obtained from aerodynamic tests are contrasted and numerical examination and the outcomes are additionally incorporated. The impact of temperature and the wind stream is likewise considered in this investigation. Various kinds of ventilations given in the transport vehicles are recorded, and the outcomes acquired from the various configurations in the structure is considered for opening and closing of Windows (Combination of windows). The cooling air inside the transport straightforwardly relies upon the outside climate condition. Byoverhauling the current vehicle transport model, the eco-friendliness will be improved and the drag power will be diminished. Technology, CHRIST (Deemed to be University) has obtained his B.E., degree in Mechanical Engineering from Visvesvaraya Technological University, M.E., in Manufacturing Science and Engineering, andPh.D., in Composite Materials from Bangalore University, He has to his credit more than 50 research articles published in Scopus indexed journals of very high impact factor and most of them belonging to Elsevier and Springer Publications. He has authored several books and chapters and is a recipient of several awards and accolades for his outstanding work in the domain of materials research. He is also regarded as a good teacher and has developed teaching pedagogy and methodologies for content delivery in subjects of Materials Science, Machine Design, Kinematics of Machines and Dynamics. He is a member of several technical societies and is actively involved in disseminating scientific principles and knowledge.

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Section: Methodsmentioning

confidence: 99%

A Comprehensive Understanding of Airflow in Non Air conditioned Bus Coaching System

Kubsad,

et al. 2020

IJEAT

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“…Thus, it can be concluded that the 1D and 3D co-simulation approach has great potential to predict ITM for ICEV with acceptable accuracy and can improve ITM cooling performance [166,178]. Shen [179] discovered that the flow field of the rear engine cabin was much more complicated and the error was much larger if only using the 1D model directly. He also pointed that the 1D and 3D co-simulation was superior for obtaining much more accurate results in the calculation for rear engine ITM.…”

Section: Co-simulation For Internal Combustion Engine Vehiclementioning

confidence: 99%

Advances in Integrated Vehicle Thermal Management and Numerical Simulation

et al. 2017

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Abstract:With the increasing demands for vehicle dynamic performance, economy, safety and comfort, and with ever stricter laws concerning energy conservation and emissions, vehicle power systems are becoming much more complex. To pursue high efficiency and light weight in automobile design, the power system and its vehicle integrated thermal management (VITM) system have attracted widespread attention as the major components of modern vehicle technology. Regarding the internal combustion engine vehicle (ICEV), its integrated thermal management (ITM) mainly contains internal combustion engine (ICE) cooling, turbo-charged cooling, exhaust gas recirculation (EGR) cooling, lubrication cooling and air conditioning (AC) or heat pump (HP). As for electric vehicles (EVs), the ITM mainly includes battery cooling/preheating, electric machines (EM) cooling and AC or HP. With the rational effective and comprehensive control over the mentioned dynamic devices and thermal components, the modern VITM can realize collaborative optimization of multiple thermodynamic processes from the aspect of system integration. Furthermore, the computer-aided calculation and numerical simulation have been the significant design methods, especially for complex VITM. The 1D programming can correlate multi-thermal components and the 3D simulating can develop structuralized and modularized design. Additionally, co-simulations can virtualize simulation of various thermo-hydraulic behaviors under the vehicle transient operational conditions. This article reviews relevant researching work and current advances in the ever broadening field of modern vehicle thermal management (VTM). Based on the systematic summaries of the design methods and applications of ITM, future tasks and proposals are presented. This article aims to promote innovation of ITM, strengthen the precise control and the performance predictable ability, furthermore, to enhance the level of research and development (R&D).

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“…Shen et al [8] found that the slight modification in the existing coach results in better passenger comfort. Rodrigues et al [9] conducted an aerodynamic study and explored that changing small dimensions in the geometry reduces the drag and fuel consumption up to 20% and 10%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Numerical Simulation of Air Circulation in a Non-AC Bus Coach System

2022

IJE

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Air circulation plays a vital role in the comfort of passengers in a bus, being a non-AC bus without any aid from the air conditioning system. The circulation of air is utterly dependent on the design of the bus and the natural flow of air. However, optimize the flow of air inside the bus, a study on the design of the bus is needed. In this regard, experimental work was carried out to achieve uniform airflow by redesigning the coach into an aerodynamic shape. The openings are provided at the leading edge of the bus to evaluate the best possibility for air to circulate in the bus. Three openings were provided at the leading edge of the bus, the first and second openings were mere openings, and the third opening was fitted with a roof vent providing three different geometric patterns to airflow. The initial boundary conditions were developed by considering that all windows and doors of the bus are closed. The scaling ratio of 1:20 was considered for modeling the bus. The experiments were conducted in the wind tunnel test rig. It was observed from the experimentation that the velocity of the air was considered to be the most influential parameter for the optimal air circulation. The velocities of 21.96 m/s and 22.68 m/s were obtained inside bus. The obtained experimental velocities were validated with results obtained by the Computational Fluid Dynamics (CFD). It was observed that a deviation of 5% for the given velocity of 20 m/s.

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1D/3D Coupling Calculation Analysis on Bus Cooling System

Cited by 6 publications

References 7 publications

A Comprehensive Understanding of Airflow in Non Air conditioned Bus Coaching System

A Comprehensive Understanding of Airflow in Non Air conditioned Bus Coaching System

Advances in Integrated Vehicle Thermal Management and Numerical Simulation

Experimental Investigation and Numerical Simulation of Air Circulation in a Non-AC Bus Coach System

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