https://orcid.org/0000-0001-9128-0949
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ABSTRACT
The present paper investigates the performance, combustion and emission analysis of various biodiesel blends prepared from animal fat methyl ester (AF100) and waste cooked oil (WCO) 8–10 h used. A single cylinder, four-stroke, water-cooled, compression ignition (CI) engine was used in this investigation. Blends were prepared differently, by mixing of prepared biodiesels in various proportions. The AF100 and WCO are prepared through transesterification process. In the preparation of AF100 and WCO, catalyst potassium hydroxide (KOH) and alcohol methanol are used. The prepared AF100r was blended with WCO and petro-diesel (PD) in various proportions such as AF50WCO50 (50% of AF100 and 50% of WCO), PD50AF30WCO20 (50% of PD, 30% of AF100 and 20% of WCO) and PD50AF50 (50% of AF100 and 50% of PD). Few important properties were tabulated and compared with PD. Performance, combustion and emission tests were carried out with the above-prepared blends and compared with PD. From the tests, it was observed that PD50AF30WCO20 consumes lesser brake-specific fuel consumption and produced higher brake thermal efficiency compared to other tested blends. PD50AF50 develops higher cylinder pressure which emits more amount of CO2. 30% higher exhaust gas temperature is found in AF50WCO50 and 28% higher of CO, 22% of lower amount of unburned hydrocarbons was found in the blend. PD50AF30WCO20 develops a maximum amount of heat release rate with lower amount of CO, NOxand smoke emission compared to other blends. After completion of these investigations, it is concluded that PD50AF30WCO20 is a better suitable blend of two biodiesels used in CI engines without any modification.
Abbreviations
| AF100 | = | animal fat methyl ester |
| WCO | = | waste cooked oil |
| PD | = | petro-diesel |
| CI | = | compression ignition engine |
| BSFC | = | brake-specific fuel consumption |
| BTE | = | brake thermal efficiency |
| EGT | = | exhaust gas temperature |
| CP | = | cylinder pressure |
| HRR | = | heat release rate |
| CO | = | carbon monoxide |
| CO2 | = | carbon dioxide |
| UBHC | = | unburned hydrocarbons |
| NOx | = | oxides of nitrogen |
| AF50WCO50 | = | 50% of AF100 and 50% WCO |
| PD50AF30WCO20 | = | 50% of PD, 30% of AF100 and 20% WCO |
| PD50AF50 | = | 50% of AF100 and 50% of PD |
| DAQ | = | Data Acquisition system |
| IC | = | internal combustion |
Additional information
Notes on contributors
S. Ashfaque Ahmed
S. Ashfaque Ahmed is working as an Assistant Professor in the Department of mechanical engineering, Priyadarshini Engineering College. He has more than 10 years of teaching and research experience. He is doing research in the area of IC Engine, Pollution Control, and Alternate Fuels.
I. Rahamathullah
I. Rahamathullah is working as an Assistant Professor in the Department of mechanical engineering, Government college of engineering, Srirangam. He has more than 17 years of teaching and research experience. He is doing research in the area of Materials, IC Engine, and Solar.
K. Syed Jafer
K. Syed Jafer is working as an Assistant Professor in Department of mechanical engineering, Government college of engineering, Dharmapuri. He has more than 15 years of teaching and research experience. He is doing research in the area of Solar energy, Nanofluids, and Heat transfer.