Evaluation of Heat Loss to Cylinder Wall of Compression Ignition Engine by Heat Transfer Models
บทความในวารสาร
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Bobi S., Laoonual Y.
ปีที่เผยแพร่ (ค.ศ.): 2022
วารสาร: GMSARN International Journal (1905-9094)
Volume number: 16
Issue number: 3
หน้าแรก: 240
หน้าสุดท้าย: 246
จำนวนหน้า: 7
นอก: 1905-9094
ภาษา: English-Great Britain (EN-GB)
บทคัดย่อ
Modelling of cylinder heat transfer and wall heat loss are critical tasks for evaluating the energy flow in the engine. This work provides knowledge in this field under high fuel injection pressure and variable engine speed. First, the experimental approach was used to acquire some primary parameters, including the cylinder volume and pressure at every 0.1 crank angle degree. The engine was set to run at 1400 rpm to 2400 rpm with 200 incremental at full load and fuel injection pressure varied at 40 MPa, 90 MPa, and 110 MPa. The obtained secondary parameters included cylinder temperature to evaluate convective heat transfer coefficient (CHTC), heat flux, and cylinder gas velocity. Two models were employed for the assessment of the CHTC through Woschni and Hohenberg models. The outcomes of the experimental work revealed that the CHTC and heat flux versus crank angle degree were accomplished from both models with low, medium, and high injection pressure at each engine speed. However, the results indicate that the CHTC from the Woschni model is higher than the Hohenberg correlation model. The peaks value of the CHTC from the Woschni model at higher fuel injection pressure increases by 21.7%, 27.1%, and 16.4% at low, medium and high speeds, respectively © 2022,GMSARN International Journal.All Rights Reserved
คำสำคัญ
Compression ignition engine, Fuel injection pressure, Heat release rate
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