Paper id 149

Energy recovery from used transformer oil for small

power generation

Presented by

Pritinika BeheraNational Institute of Technology, Rourkela,

Odisha-769008Presented in ICAER 2013, IIT Bombay, Mumbai

Energy from waste

One method of producing alternative energyGives an option for recyclingReduces environmental pollution

Presented in ICAER 2013, IIT Bombay, Mumbai

Transformer oil

Insulating oil Helps for cooling the transformer


Original Transformer Oil

Transformer oil is highly refined electrical insulating oil.

Now a days transformer oil are made vegetable oil based


Oil deteoriation

Contaminated and disposed Small quantity are used in lightening purpose


Used transformer oil (UTO)

A solution to reuse the used transformer oil disposed from electrical power stations.

Used transformer oil is proposed as an alternative fuel in a compression ignition engine in this study.


Chemical composition of the UTO and diesel

Description Diesel UTOC (%) 86.5 89.95H (%) 13.2 9.19N (%) 0.18 0.03S (%) 0.3 0.35

O by difference (%) 0 0.44


Physical properties of UTO

Property Unit Diesel UTOKinematic viscosity cSt@ 270C 2.4 13

Flash point oC 76 150Fire point °C 56 172Pour point °C -16 -16.7

Density kg/m3 860 890Lower calorific value kJ/kg 44800 39270

Sulphur content % 0.05 0.020T10 °C 210 320T50 °C 230 340T90 °C 260 370

T100 °C 350 360


Operating parameters

Most important parameters are

Injection pressure Injection timing Compression ratio


Experimental set up

Smoke meter

Gas analyzer

Load cell

DAS

Engine

Alternator

Air box


Result and Discussion

Combustion parametersPerformance parametersEmission parameters

To evaluate suitable operating parameters for Diesel engine in terms of different injection timings


Variation of cylinder pressure consumption with crank angle

Fuel with advanced injection timing shows higher cylinder pressure


Variation of ignition delay with load

The higher viscosity of UTO results in shorter ignition delay compared to diesel


Variation of heat release rate with crank angle

Retarded injection timing exhibits lower rate of pressure rise due to reduced ignition delay


Variation of combustion duration with load

Lower combustion duration is observed due to shorter ignition delay


Variation of exhaust gas temperature with load

The exhaust gas temperature is lower for advanced injection timing due to the occurrence of combustion earlier.


Variation of NO emission with load

Higher combustion temperature results in higher NO emission


Variation of smoke density with load

The retarded timing of UTO shows higher values of smoke emission due to incomplete combustion and poor atomization


Conclusion

Due to variation of injection timing

• Engine was able to run with 100% UTO when the injection timing was advanced and retarded.

• Based on the combustion, performance and emission the optimum injection timing is found to be at 20obTDC.


References

1. Murugan, S., Ramaswamy, M.C., Nagarajan, G. (2008) Performance, emission and combustion studies of a DI diesel engine using distilled tyre pyrolysis oil diesel blends, Journal of Fuel Processing Technology, 89, pp. 152-159.

2. Murugan, S., Ramaswamy, M.C., Nagarajan, G. (2008) A comparative study on Performance, emission and combustion studies of a DI diesel engine using distilled tyre pyrolysis oil diesel blends, Journal of Fuel, 87, pp. 2111-2121.

3. Arpa, O., Yumrutas, R., Argunhan, Z. (2010) Experimental investigation of the effects of diesel-like fuel obtained from waste lubrication oil on engine performance and exhaust emission, Fuel Processing Technology, 91, pp. 1241–1249.

4. Tajima, H., Takasaki, K., Nakashima, M., Yanagi, J., Takaishi, T., Ishida, H., Osafune, S., Iwamoto, K. (2001) Combustion of used lubricating oil in a diesel engine, SAE paper no. 2001-01-1930.

5. Yu, C. W., Lim, T. H., Bari, S. (1999) A study on the use of waste cooking oil as fuel for diesel engines, 2nd International Seminar on Renewable Energy for Poverty Alleviation. Dhaka, pp. 396–399.


Any Queries ?
