An application of conjugate gradient technique for determination of thermal conductivity as an inverse engineering problem

Pandey, Vivek; Bekele, Addisu; Ahmed, Gulam Mohammed Sayeed; Kanu, Nand Jee; Singh, Gyanendra Kumar

doi:10.1016/j.matpr.2021.06.073

Cited by 10 publications

(4 citation statements)

References 12 publications

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“…Omar Hamad at el. [41] analysed the influence of critical FDM process parameters such as layer thickness, air gap, build orientation, raster angle road width, and number of contours, on build time, feedstock material consumption and dynamic flexural strength [18], [33], [35], [42]- [45] using Qoptimal response surface methodology [10], [43], [46], [47]. They concluded that flexural strength or flexural modulus improves significantly using increased layer thickness [41].…”

Section: Response Surface Methodsmentioning

confidence: 99%

Prediction of Mechanical Properties of FDM Printed PLA Parts using Response Surface Methodology.

Thakur¹,

Vates²,

Mishra

2023

Preprint

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Purpose: In the present work significant process parameters (nozzle temperature, layer thickness, and printing speed) are optimized for enhancing the mechanical properties of fused deposited PLA specimens. The selected parameters in this study critically impact the desired mechanical properties of printed PLA parts. Design/ Methodology/ Approach: The three selected critical process parameters are simultaneously studied in a systematic manner using a hybrid statistical tool central composite design (CCD) for Response surface methodology. The selected printing parameters are layer thickness, nozzle temperature, and printing speed. Findings: The best composition of the tensile strength (50.5479 MPa) & flexural strength (95.0163 MPa) has been produced with an RSM predicted model having process parameters layer thickness 0.2313mm, nozzle temperature 208 °C, and printing speed 55.5 mm sec-1 Based on the results of the validating method, by producing an optimal sample in accordance with optimal parameters and their mechanical properties measurements, it was found that the optimal values of parameters are giving the maximum mechanical properties and the RSM Method has a high ability to optimize the parameters. Research Implications: Tensile Strength and Flexural strength are the two important features that need a stent to withstand the forces exerted on it by the surrounding tissues and blood flow and to be able to bend and conform to the shape of the artery during insertion and deployment. This study focuses on nozzle temperature, printing speed, and layer thickness in the experimental estimation of the ideal PLA polymer FDM part characteristics. Results show that Layer thickness and Nozzle Temperature are the dominating contributors to the mechanical responses (tensile strength & Flexural strength).

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Section: Response Surface Methodsmentioning

confidence: 99%

Prediction of Mechanical Properties of FDM Printed PLA Parts using Response Surface Methodology.

Thakur¹,

Vates²,

Mishra

2023

Preprint

View full text Add to dashboard Cite

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“…Lower Biodiesel-diesel blends have slightly higher density and viscosity due to which the fuel management systems [8][9][10], have to be changed for better combustion of these denser blends [31]. Increasing the fuel inlet pressure does push the fuel further in the compressed air and thereby enhancing the fuel-air mixing process [31,32]. But by doing so, the fuel pump and injector need to be changed https://doi.org/10.17993/3ctecno.2023.v12n1e43.202-223 [31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

“…Increasing the fuel inlet pressure does push the fuel further in the compressed air and thereby enhancing the fuel-air mixing process [31,32]. But by doing so, the fuel pump and injector need to be changed https://doi.org/10.17993/3ctecno.2023.v12n1e43.202-223 [31][32][33][34][35]. Also, denser fuels when injected at higher pressure show higher fuel combustion pockets thereby exhibiting, a higher amount of uncontrolled combustion activity [16,17].…”

Section: Introductionmentioning

confidence: 99%

Investigation Of Waste Cooking Oil-Diesel Blend With Copper Oxide Additives As Fuel For Diesel Engine Under Variations In Fuel Injection Pressure

Chatur¹,

Maheshwari²,

Srinidhi³

2023

3C Tecnología

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Fuel Injection is a significant factor when biodiesel-diesel blends are fired in diesel engines as they have very diverse property when related to diesel. The current work describes unusual experimental study of CI engine fuelled with Waste cooking methyl ester with copper oxide nano additives at varying fuel injection pressures. The Copper oxide nano additives were manufactured using homogenous addition method and were subjected to studies such as XRD and SEM characterization. These synthesized nanoparticles were later added in waste cooking oil biodiesel blend (WCO20) with levels of 10 ppm, 20 ppm, 30 ppm, and 40ppm. The results were noted from a DI-CI VCR engine coupled with an eddy current dynamometer. The addition of CuO particles reduces the ignition delay of WCO20 and raises the thermal efficiency of the engine by an average of 3.9% and limits HC emission by 15.6%.

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“…Friction brakes are the most popular braking mechanism in commercial or special-purpose vehicles [17][18][19][20]. They're often rotating devices with a spinning wear surface, such as a disc or drum, and a stationary pad or shoe [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Design Modification and Analysis of Disc Brake

Shroff¹,

Kulkarni²,

Urankar³

et al. 2022

IJAEFEA

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Many difficulties surround the heating characteristics of brakes when it comes to their creation, including contact region features, material choice, development of hot spots, associated physical geometry, and deformations, as brakes are subjected to continuous operation. Therefore, it is must for all vehicles to have proper brake system. In this report there is the modification of the disc and that results in the design are used to carry out analysis on it. The analysis of standard disc brake model and new design using in Ansys is done the Thermal analysis and Modal analysis also calculate the deflection and Heat flux, Temperature of disc brake model. Understanding the different forces (action and friction) which are acting on the disc brake, as well as how the disc brake operates more efficiently, will assist to reduce the number of accidents that occur each day. The primary goal of this research is to examine the brake disc's thermo-mechanical behavior during braking. The disc material is changed to carbon-ceramic, and the results of the FEA of the new design disc are used. This study presents the findings and the disc's future prospects.

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An application of conjugate gradient technique for determination of thermal conductivity as an inverse engineering problem

Cited by 10 publications

References 12 publications

Prediction of Mechanical Properties of FDM Printed PLA Parts using Response Surface Methodology.

Prediction of Mechanical Properties of FDM Printed PLA Parts using Response Surface Methodology.

Investigation Of Waste Cooking Oil-Diesel Blend With Copper Oxide Additives As Fuel For Diesel Engine Under Variations In Fuel Injection Pressure

Design Modification and Analysis of Disc Brake

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