Comparison of Piston Temperature Measurement Methods: Templugs Versus Wireless Telemetry With Thermocouples

Madison, Daniel P.; Miers, Scott A.; Barna, Glen L.; Richerson, Jay L.

doi:10.1115/icef2012-92184

Cited by 4 publications

(5 citation statements)

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“…The physical arrangement of the 13 measurement points is shown in Figure 13. It is helpful to obtain small measurement errors by maintaining a period of the highest temperature and rapid cooling for the cylindrical head [40]. The positional relationship and the errors for measuring points are shown in Figure 14 and Table 6.…”

Section: Verification and Error Analysismentioning

confidence: 99%

Analysis and Optimisation of Thermo-Mechanical Coupling Load of Cylinder Head Considering Fluid-Structure Interaction for a Marine High-Power Diesel Engine

Yang

et al. 2020

Energies

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A one-dimensional model of the diesel engine working process was established, and thermal boundary conditions of gases contacting with a cylinder head were determined by comparing them with the results of a routine test. A fluid-structure interaction model between the cooling water and cylinder head passages was established in which boundary conditions of cooling water were obtained by computational fluid dynamics analysis. Simultaneously, considering the pressure mechanical load in the cylinder, temperature and the stress distribution of the cylinder head were analysed by the model with a thermo-mechanical coupling load. The model was validated using the temperature hardness plug method. Four parameters of intake valve opening, exhaust valve opening, fuel supply beginning, and compression ratio were selected as influencing factors, and the thermo-mechanical coupling load of the cylinder head was optimised by the Taguchi and analysis of variance method subsequently. The study indicates that the error of the calculation model for the cylinder head’s thermal-mechanical coupling load is within ±1.5%, and the proportion of the thermal stress in the cylinder head thermal-mechanical coupling stress is above 90%. The fuel supply beginning has the greatest influence on the thermal load of the cylinder head. Based on the optimisation methods within the required power range, the maximum temperature and maximum thermo-structural coupling stress of the cylinder head are decreased by about 10.05 K and 7.13 MPa in the nose bridge area, respectively.

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Section: Verification and Error Analysismentioning

confidence: 99%

Analysis and Optimisation of Thermo-Mechanical Coupling Load of Cylinder Head Considering Fluid-Structure Interaction for a Marine High-Power Diesel Engine

Yang

et al. 2020

Energies

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“…The piston was heated to the highest load required for a period of time and then cooled quickly, so a small error can be obtained. 34 The corresponding positions and results of the measurement points are shown in Figure 9.…”

Section: Temperature Measurement and Errormentioning

confidence: 99%

Evaluation and sensitivity analysis of a piston’s thermal load in a high-power diesel engine

Yang

Dong

2021

International Journal of Engine Research

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Optimising the parameters of valve timing and fuel system can promote the applications of high-power diesel engines that have high efficiency and low emissions. Nevertheless, the problem of the piston’s thermal load needs to be considered. In this paper, a calculation model for the working process of a high-power diesel engine and a finite element model of the piston’s thermal load were established. The piston’s thermal boundary conditions were determined and applied to the calculation of the piston’s thermal load, and the key temperature points of the piston were measured using the temperature plug method to verify the correctness of the model. Subsequently, analysis of the patterns of the piston’s thermal load’s evaluation parameters was carried out with the influencing factors based on the valve timing and the fuel system. The sensitivity and the weighting between the evaluation parameters and influencing factors were analysed using the Grey Correlation method. A new method for the comprehensive evaluation index of the piston’s thermal load with the influencing factors was proposed and applied. The research results show that the margin of error of the piston’s thermal load’s model was small, and sensitivity analysis revealed correlation between the influencing factors and the evaluation parameters of the piston’s thermal load, the comprehensive evaluation method could quantitatively analyse the piston’s thermal load.

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“…Thermocouple has higher measurement accuracy; however, the acquisition of those measurement data from inside of the internal combustion engine is very complex, as in [3] . The most common methods to acquire the measurement data are contact point method, induction coil method, RF telemetry method and carrying linkage, all of which have complex mechanisms and limited reliabilities, as in [4].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Temperature Fluctuation Rule in Piston of CNG Engine

Zhang¹,

Zhou²,

Wang³

2015

Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering

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Abstract. In this study, a measurement system is developed for obtaining continuous piston temperatures in working engine by using a voltage recorder. In this paper, authors discuss the sensor package impact of test results in temperature measurement, and measured the piston temperature when the CNG engine was at speed of 1100rpm, 1200rpm, 1300rpm, 1500rpm, 1700rpm and 1900rpm, the oil/water temperature steady.

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Comparison of Piston Temperature Measurement Methods: Templugs Versus Wireless Telemetry With Thermocouples

Cited by 4 publications

References 0 publications

Analysis and Optimisation of Thermo-Mechanical Coupling Load of Cylinder Head Considering Fluid-Structure Interaction for a Marine High-Power Diesel Engine

Analysis and Optimisation of Thermo-Mechanical Coupling Load of Cylinder Head Considering Fluid-Structure Interaction for a Marine High-Power Diesel Engine

Evaluation and sensitivity analysis of a piston’s thermal load in a high-power diesel engine

Experimental Study of Temperature Fluctuation Rule in Piston of CNG Engine

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