scholarly journals Measurement of Combustion Gas Temperature of Internal Combustion Engine by Use of Ultrasonic Wave

1971 ◽  
Vol 14 (68) ◽  
pp. 156-163 ◽  
Author(s):  
Joji YAMAGA ◽  
Shuji SHIBATA
Keyword(s):  
Internal Combustion Engine ◽  
Ultrasonic Wave ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Gas Temperature ◽  
Combustion Gas

scholarly journals Recovery of Exhaust Waste Heat for ICE Using the Beta Type Stirling Engine

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Wail Aladayleh ◽  
Ali Alahmer
Keyword(s):  
Internal Combustion Engine ◽  
Waste Heat ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Stirling Engine ◽  
Gas Temperature ◽  
Ic Engine ◽  
Exhaust Waste Heat ◽  
Useful Power ◽  
Shaft Power

This paper investigates the potential of utilizing the exhaust waste heat using an integrated mechanical device with internal combustion engine for the automobiles to increase the fuel economy, the useful power, and the environment safety. One of the ways of utilizing waste heat is to use a Stirling engine. A Stirling engine requires only an external heat source as wasted heat for its operation. Because the exhaust gas temperature may reach 200 to 700°C, Stirling engine will work effectively. The indication work, real shaft power and specific fuel consumption for Stirling engine, and the exhaust power losses for IC engine are calculated. The study shows the availability and possibility of recovery of the waste heat from internal combustion engine using Stirling engine.

scholarly journals A quick, simplified approach to the evaluation of combustion rate from an internal combustion engine indicator diagram

2008 ◽  
Vol 12 (1) ◽  
pp. 85-102 ◽  
Author(s):  
Miroljub Tomic ◽  
Slobodan Popovic ◽  
Nenad Miljic ◽  
Stojan Petrovic ◽  
Milos Cvetic ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Heat Release ◽  
Heat Release Rate ◽  
Release Rate ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Gas Temperature ◽  
Compression Ignition Engine ◽  
Practical Applications ◽  
Simplified Approach

In this paper a simplified procedure of an internal combustion engine in-cylinder pressure record analysis has been presented. The method is very easy for programming and provides quick evaluation of the gas temperature and the rate of combustion. It is based on the consideration proposed by Hohenberg and Killman, but enhances the approach by involving the rate of heat transferred to the walls that was omitted in the original approach. It enables the evaluation of the complete rate of heat released by combustion (often designated as ?gross heat release rate? or ?fuel chemical energy release rate?), not only the rate of heat transferred to the gas (which is often designated as ?net heat release rate?). The accuracy of the method has been also analyzed and it is shown that the errors caused by the simplifications in the model are very small, particularly if the crank angle step is also small. A several practical applications on recorded pressure diagrams taken from both spark ignition and compression ignition engine are presented as well.

scholarly journals A 3D modelling of the in-cylinder combustion dynamics of two stroke internal combustion engine in its service condition

2020 ◽  
Vol 39 (1) ◽  
pp. 161-172 ◽  
Author(s):  
A.E. Ikpe ◽  
I.B. Owunna
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Maximum Shear Stress ◽  
Fuel Mixture ◽  
Internal Combustion ◽  
Maximum Temperature ◽  
Ideal Condition ◽  
Gas Temperature ◽  
Ic Engine ◽  
Combustion Dynamics

In this study, a two stroke internal combustion engine was successfully modeled as a closed cycle with the intake, compression, expansion and exhaust processes considered in two strokes of the reciprocating piston. The in-cylinder combusted gases with respect to air-fuel mixture of 14.4:1 in the two stroke engine model were analyzed, showing the dynamics of the combusted gases, the flame pressure and temperature trajectories. It was observed that provided compression and expansion takes place at air-fuel mixture near ideal condition (14.7:1), the combusted gas temperature which occurred in the range of 293.92-3000.60 K is directly proportional to the cylinder gas pressure which occurred in the range of 60.76-80.20 bar. With a heat transfer coefficient of 581.236 W/m2K, the maximum temperature of the IC engine material was found to be 2367.56K at equilibrium and the maximum shear stress was found to be 176 x 102 MPa (1.76 x 105 bar). The 14.4:1 air-fuel mixture implies that 26% O2, 73% N2 and 1% trace gases are the in-cylinder air constituent that will react with 1 mole of hydrocarbon to form the combusted products of 96.2% CO2, 3.2% H2O and 0.6% N2. This will vary in conditions where the air-fuel mixture changes. Keywords: Modelling, Gas dynamics, Two stroke, IC engine, Air-fuel mixture.

Simulation Research on the Application of Thermoelectric Waste Heat Recovery of Internal Combustion Engine

2010 ◽  
Author(s):  
Maohai Wang ◽  
Thomas Josef Daun ◽  
Yangjun Zhang ◽  
Weilin Zhuge
Keyword(s):  
Internal Combustion Engine ◽  
Waste Heat ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Parameter Study ◽  
Exhaust Gas ◽  
Gas Temperature ◽  
Simulation Research ◽  
Exhaust Gas Temperature ◽  
Engine Power

In this paper, the development of a thermoelectric generator (TEG) simulation model and its implementation into an internal combustion engine (ICE) system model are demonstrated. The TEG model is calibrated with respect to an experimental basis presented in a previously published paper. A TEG parameter study, an analysis of the overall system and the interaction between the TEG and the ICE are carried out. The simulation results indicate that the exhaust gas temperature has a much more significant influence on the TEG performance than the exhaust gas mass flow rate. Without considering the influence of additional backpressure, the application of a TEG shows potential to increase the effective engine power; thereby improving the overall efficiency by approximately 0.6 to 1.7% (depending on engine speed and load). However, when taking additional backpressure into account, this gain in effective engine power is reduced slightly, resulting in a change of the efficiency range to between 0.2 and 1.7%. This illustrates the importance of taking the backpressure into account when designing a real world TEG.

scholarly journals Experimental study of carbide as an alternative fuel using in Internal Combustion Engine

2019 ◽  
pp. 106-114
Author(s):  
Ganesh M ◽  
Jagadeesan S ◽  
Bharathwaj S
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Alternative Fuel ◽  
Exhaust Gas ◽  
Gas Temperature ◽  
Smoke Emission ◽  
Brake Thermal Efficiency ◽  
Hydrocarbon Emission ◽  
Exhaust Gas Temperature

The emerging world need alternative fuel for diesel and petrol. This is the experiment that using the carbide as the alternative fuel for internal combustion engine by converting the carbide as the acetylene using water. The brake thermal efficiency, exhaust gas temperature, smoke emission, CO2 emission, NOx emission, hydrocarbon emission, performance of the engine is studied under this Experiment

Special Combustion Chamber in the Cylinder of Diesel Engine Working Process Simulation Analysis Based on the FIRE Software

2012 ◽  
Vol 562-564 ◽  
pp. 595-598
Author(s):  
Jian Ying Dai ◽  
Xiao Wei Wu ◽  
Chun Yan Shi
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Combustion Process ◽  
Internal Combustion ◽  
Gas Pressure ◽  
Gas Temperature ◽  
Working Process ◽  
Vehicle Noise ◽  
Combustion Theory ◽  
Exhaust Noise

Exhaust noise is the main component of vehicle noise in the study of vehicle noise controlling. It is important to design a type of muffler that can match to engine and have the capability to reduce vehicle noise. At present vehicle mufflers are made by examination, therefore the time of product development is very long and it wastes material. Sometimes exhaust noise can not be reduced; in the contrary it will decrease the power of engine. The content of exhaust noise is tightly related to the temperature, pressure and velocity of combustion gas. In order to obtain the detail data of these parameters, FIRE software is used to perform the calculation of engine combustion process in this paper. FIRE is one of the advanced 3D simulation software packages and can simulate the complicated gas flowing and combustion in internal combustion engine cylinder. Its calculation result accesses to the fact and can attain gas temperature, gas pressure and gas velocity, provide reliable original data for the design of a muffler. In this paper, the basic combustion theory of internal combustion engine is introduced to the basis for the further application of numerical simulation, firstly. The geometrical model and mesh model of a type internal combustion engine are constructed by using FIRE software to analyze the working process of internal combustion engine. Based on the model and combustion theory, the relevant calculation model and initial parameters are chosen and applied into the software. A load case is designed according to the true running process of this engine. With these load cases, the combustion process is simulated in this paper. The detail distribution of the parameters such as combusted gas pressure, combusted gas temperature and velocity of the flow fields in cylinder is obtained and the relation of these parameters and crankshaft angle is given for the further research. It also provides data for muffler design by boundary element method. It is obvious that can shorten the product developing cycle and save the material.

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