Experimental Evaluation of Injection Pressure and Injection Timing on Diesel Engine
K. Rajasekhar1, B. Jayachandraiah2, S. Nishanthi3
1Mr. K. Rajasekhar, Assistant Professor, Ananamacharya Institute of Technology, Tirupathi (A.P), India.
2Dr. B. Jayachandraiah, Professor, Department of Mechanical Engineering, Srikalahasteeswara Institute of Technology, Srikalahasti, Chittoordistrict (A.P), India.
3S. Nishanthi,  Assistant Professor, Ananamacharya Institute of Technology, Tirupathi (A.P), India.
Manuscript received on 10 January 2019 | Revised Manuscript received on 20 January 2019 | Manuscript Published on 30 January 2019 | PP: 56-59 | Volume-8 Issue-2S2, January 2019 | Retrieval Number: 100.1/ijeat.B10130182S219/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: An attempt is made in this paper to conduct experiments to study the effect of different injection pressure with different injection timing of a Diesel Engine and evaluate performance and emission characteristics. The experiments are conducted at different Load conditions of 0%,,25% ,50%,& 75% and Full Load by varying injection pressures of 200 and 220 Bar with different injection timings at19°, 23° and 27° bTDC. Output results shows that engine operating at 220 bar pressure gives nearly 1% more brake thermal efficiency than lower pressure irrespective of the injection timing whereas brake specific fuel consumption is found to have significant changes at the initial conditions. It is also shows that the CO emissions decrease with increase in injection pressure and advancement in injection timings at 220 bar and 27º bTDC but also those conditions yield the lowest CO emission because of the NOx emissions increase with increase in injection pressure.
Keywords: Single Cylinder, Brake Power, Performance Characteristics.
Scope of the Article: Materials Engineering