Investigation of heat transfer in combustion chamber of a direct injection diesel engine under different compression ratios and engine torques

ŞANLI, Ali; Gümüş, Metin

doi:10.5505/pajes.2021.20599

Cited by 3 publications

(1 citation statement)

References 24 publications

(43 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As seen here, the empirical equation, 1D model and 3D CFD model HTCs have been consistent with each other. In the empirical equation studies of Sanli and Gumus in different engines, in-cylinder HTC was calculated as 3120 W/m 2 K [36]. From here, it is seen that the in-cylinder HTC calculated by empirical experiments is once again consistent.…”

Section: Fig 10 Mesh Independency Studysupporting

confidence: 66%

Influence of different reynolds numbers and geometries on water jacket cooling performance in a compression ignition engine

Kantaroğlu

2023

Preprint

View full text Add to dashboard Cite

In this study, the effect of cooling water Re number and geometry on the cooling performance of the water jacket of the F-Type F8Q 706 engine has been investigated. For this purpose, a 1D model of the engine has been created and verified with the engine performance test results. The effective power for 2500 rpm in the model has been 8.785% higher than the test in the engine catalogue. In another test, the power value has been calculated to be 8.411% higher on average for all engine speeds. Using the in-cylinder pressures and temperatures have been taken from the 1D model, some boundary conditions of the 3D water jacket CFD model have been calculated from the analytical equations. In the calculations have been made in 3D CFD analysis, the stored heat has been decreased by 62.57% from 22128.97 Re to 6175.79 Re. In addition, the average temperature on the cylinder liner surface has been increased by 21.82% at the same Re numbers. At the end of the geometric structure analysis, the finned jacket geometry has been increased the stored heat by 42.01% and the number of PECs by 20.74%. Thus, in the water jacket heat transfer calculations have been made using a validated 1D engine model in addition to analytical and numerical calculations, it has been observed that the change in geometric properties created a good heat storage ability.

show abstract

Section: Fig 10 Mesh Independency Studysupporting

confidence: 66%

Influence of different reynolds numbers and geometries on water jacket cooling performance in a compression ignition engine

Kantaroğlu

2023

Preprint

View full text Add to dashboard Cite

show abstract

Influence of different Reynolds numbers and new geometries on water jacket cooling performance in a CI engine

Kantaroğlu

2024

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

Physical damage and emission increases that may occur in the engine due to uncontrolled temperature increases are prevented by cooling systems. In this study, the water jacket (WJ) of the F-Type F8Q706 engine was examined for different Reynolds numbers and geometries. With a combined examination approach, engine tests, 1D engine model, 3D in-cylinder combustion (ICC) model, and 3D WJ CFD studies are presented together, for the first time. Accordingly, a 3D WJ CFD model was developed using in-cylinder parameters calculated from 1D and 3D ICC which were verified by tests. Engine powers in 1D and 3D models, heat transfer, liner temperature, and heat flux in WJ models were compared. The engine powers at 2500 rpm with wide-open throttle are as follows: 1D (33.610 kW), 3D ICC (32.075 kW), engine catalog test (30.890 kW), and a literature test (29 kW). In the WJ model, instead of the Reynolds number 22,128.97, values of 18,440.81–15,367.34–12,806.11–1067.76–8893.14–7410.95–6175.79 were used. In this case, heat transfer decreased by 11.224%–20.844%–29.940%–38.168%–45.723%–52.874%–59.340%. Liner temperature increased by 3.962%–7.505%–10.879%–13.958%–16.800%–19.470%–21.822%. As the Reynolds number decreased, heat transfer decreased, and liner temperature increased. In the WJ, uncontrolled temperature increases were seen in areas farthest from the water inflow. Unlike studies using nanofluids, a new WJ geometry with 169 fins was developed for cooling performance. Nanoparticles cause damage to elastomeric system elements, clogging, and corrosion in lines. This geometry increased heat transfer by 42.01% and reduced liner surface temperatures by 48.28% for 22,128.966 Re. Repeated analyses showed that the fins increased heat transfer.

show abstract

An Experimental and Thermodynamic Analysis of Premixed Charge Compression Ignition Engine Operating on Equal Volumetric Blend of Kapok Oil Methyl Ester,Turpentine Oil, and Diethyl Ether with Hydrogen Induction

2024

Preprint

View full text Add to dashboard Cite

Investigation of heat transfer in combustion chamber of a direct injection diesel engine under different compression ratios and engine torques

Cited by 3 publications

References 24 publications

Influence of different reynolds numbers and geometries on water jacket cooling performance in a compression ignition engine

Influence of different reynolds numbers and geometries on water jacket cooling performance in a compression ignition engine

Influence of different Reynolds numbers and new geometries on water jacket cooling performance in a CI engine

An Experimental and Thermodynamic Analysis of Premixed Charge Compression Ignition Engine Operating on Equal Volumetric Blend of Kapok Oil Methyl Ester,Turpentine Oil, and Diethyl Ether with Hydrogen Induction

Contact Info

Product

Resources

About