The Effects of Backpressure on the Performance of Internal Combustion Engine and Automobile Exhaust Thermoelectric Generator

2022 ◽  
pp. 1-27
Author(s):  
Rui Quan ◽  
Yousheng Yue ◽  
Zikang Huang ◽  
Yufang Chang ◽  
Yadong Deng
Keyword(s):  
Heat Exchanger ◽  
Pressure Drop ◽  
Internal Combustion Engine ◽  
Thermoelectric Generator ◽  
Engine Speed ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Automobile Exhaust ◽  
Automobile Exhaust Thermoelectric Generator ◽  
Co Emission

Abstract The maximum generated power of automobile exhaust thermoelectric generator (AETEG) can be enhanced by applying inserted fins to its heat exchanger, for the temperature difference of thermoelectric modules (TEMs) is increased. However, the heat exchanger will result in undesired backpressure, which may deteriorate the performance of the internal combustion engine (ICE). To evaluate the backpressure on the performance of both the ICE and the AETEG, the model of ICE integrated with AETEG was established with the GT-power software and validated with the AETEG test bench. The heat exchangers with chaos shape and fishbone shape were proposed, their pressure drop with different engine speeds was studied, and their effects on the performance of both the AETEG and the ICE were analyzed. The results showed that compared with the fishbone-shaped structure, the pressure drop of chaos-shaped heat exchanger is larger at the same engine speed, which contributes to the increased maximum power and hot side temperature of the AETEG. Moreover, compared with the ICE without heat exchanger, the brake torque, brake power, volumetric efficiency and pumping mean effective pressure of the ICE assembled with chaos-shape and fishbone-shape heat exchanger reduce, and the corresponding brake specific fuel consumption, CO emission and CO2 emission increase because of the raised backpressure caused by the heat exchanger.

scholarly journals Study of the Influence of Heat Exchanger Body Design Parameters on the Performance of a Thermoelectric Generator for Automotive Internal Combustion Engine

2015 ◽  
Vol 12 (Special-Edn2) ◽  
pp. 677-689
Author(s):  
Nikolay Anatolyevich Khripach ◽  
Boris Arkadyevich Papkin ◽  
Viktor Sergeevich Korotkov ◽  
Dmitriy Vladimirovich Zaletov
Keyword(s):  
Heat Exchanger ◽  
Internal Combustion Engine ◽  
Thermoelectric Generator ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Design Parameters ◽  
Body Design

Effect and Optimization of Performance of Ceramic Coated Internal Combustion Engine

2015 ◽  
Vol 766-767 ◽  
pp. 546-550
Author(s):  
E.V.V. Ramanamurthy ◽  
Nishant Gaurav ◽  
Abhiyan Paudel ◽  
Jasleen
Keyword(s):  
Heat Transfer ◽  
Internal Combustion Engine ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
Engine Speed ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Volumetric Efficiency ◽  
Optimum Process ◽  
Co Emission

Ceramic coating on the internal combustion engine has appeared as one of the great means that increase performance and efficiency of an engine. This paper presents a novel approach for the optimization and study of the effect of performance of ceramic coated internal combustion engine. In this paper, different parameters like engine load and engine speed are optimized with the consideration of various responses such as engine power output, volumetric efficiency, heat transfer rate to coolant and carbon monoxide (CO) emission. Experiments are carried out by varying the parameters of load and engine speed of ceramic coated internal combustion engine. Orthogonal array is taken to conduct the experiments with the load of 40 Nm, 120 Nm, 200 Nm and speed of 1200, 2000 and 2800 in rev/min. This method shows a good convergence with the experimental and optimum process parameters where maximum volumetric efficiency, minimum heat transfer rate and minimum CO emission are obtained by using the grey relational analysis method.

Design of a Novel Heat Exchanger Using in Automobile Exhaust Thermoelectric Generator

2012 ◽  
Vol 430-432 ◽  
pp. 1428-1432
Author(s):  
Rui Quan ◽  
Xin Feng Tang ◽  
Shu Hai Quan ◽  
Ji Guang Wang
Keyword(s):  
Heat Exchanger ◽  
Temperature Distribution ◽  
Surface Temperature ◽  
Temperature Difference ◽  
Thermoelectric Generator ◽  
Thermoelectric Modules ◽  
Automobile Exhaust ◽  
Surface Temperature Distribution ◽  
Output Performance ◽  
Automobile Exhaust Thermoelectric Generator

The output performance of Automobile Exhaust Thermoelectric Generator (AETEG) is related to the temperature difference and electric connection topology of thermoelectric modules, in order to decrease the ring current among the thermoelectric modules in parallel with different temperature difference and enhance the output performance, a novel heat exchanger using in AETEG is designed in this paper. The interior structure of heat exchanger with fishbone is analysed, then its surface temperature distribution is simulated with ANSYS software and experimented with thermal imaging instrument. Both of the results show that the surface temperature distribution of the fishbone heat exchanger designed in this paper is more uniform in lateral direction and dispalys an obvious gradient in fore-and-aft surface, compared with the one of cavity designed before, the novel heat exchanger has overwhelming advantage in the output performance of AETEG, and the method adopted in this paper is feasible and practical.

Study of the effect of the EGR heat exchanger on the internal combustion engine cooling system

2021 ◽  
Keyword(s):  
Heat Exchanger ◽  
Internal Combustion Engine ◽  
Cooling System ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Combustion Products ◽  
Simulation Software ◽  
One Dimensional ◽  
Engine Cooling ◽  
Recirculation System

The article presents a study and modification of the cooling system of a KAMAZ R6 in-line diesel engine using a heat exchanger of the combustion products recirculation system in the Simcenter AMESim one-dimensional simulation software. In the course of the research, the problems of engine overheating when using a heat exchanger of the combustion products recirculation system were identified, and possible solutions were proposed and investigated to optimize the temperature level of the coolant in the engine cooling system. Keywords one-dimensional modeling, 1D modeling, ICE, internal combustion engine, heat exchange, cooling system, CO, heat exchanger, heat exchanger, TA

The Measurement of Air Velocity in a Motored Internal Combustion Engine Using a Hot-Wire Anemometer

1970 ◽  
Vol 185 (1) ◽  
pp. 583-591 ◽  
Author(s):  
H. Hassan ◽  
J. C. Dent
Keyword(s):  
Fixed Point ◽  
Internal Combustion Engine ◽  
Constant Temperature ◽  
Compression Ratio ◽  
Engine Speed ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Hot Wire ◽  
Gas Velocity ◽  
Air Velocity

The application of the constant temperature hot-wire anemometer to the measurement of instantaneous gas velocity in the pre-chamber of a motored I.C. engine is shown to be possible. The correction of the anemometer output to allow for the operation of the wire at conditions greatly removed from those of a windtunnel calibration are discussed. The variation of gas velocity at a fixed point in the pre-chamber with variation of engine compression ratio and engine speed was studied.

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