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Performance evaluation of diesel engines using blends of diehtyl ether and diesel and diethyl ether and bio diesel

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  1. Abstract: Producing and using renewable fuels for transportation
  2. Introduction to diesel engine
  3. Experimental apparatus and procedure
  4. The specifications of test engine
  5. Results and discussion
    1. Test fuel DEE and diesel blends
    2. Test fuel DEE & biodiesel blends
  6. Conclusion
  7. References

Producing and using renewable fuels for transportation is one approach for sustainable energy future for the world. With ever growing concerns on environmental pollution, energy security, and future oil supplies, the global community is seeking non petroleum based alternative fuels, along with more advanced energy technologies (e.g., fuel cells) to increase the efficiency of energy use. The most promising alternative fuel will be the fuel that has the greatest impact on society. The major impact areas include well-to-wheel greenhouse gas emissions; non-petroleum feed stocks, well-to-wheel efficiencies, fuel versatility, infrastructure, availability, economics, safety. During the past year, a systematic experimental study of various oxygenated molecules on engine performance was carried out using oxygenates from the main functional families: ethers, esters, aldehydes, alcohols and ketones. Diethyl ether appears as a considerable choice among many available oxygenates as a supplementary fuel of choice for eliminating dependency on petroleum. DEE is also recently reported as a renewable fuel and to a low emission high quality diesel fuel replacement.

[...] The use of Diethyl ether (DEE) as oxygenated additives to the diesel or biodiesel fuel engine appears to be promising approach to reduce soot and particulate emission because it contain about 21% oxygen by weight[2]. Also this fuel can be produced from biological feedstock which is generally considered as renewable. Among the alternative fuels, biodiesel and ethanol are most widely studied biofuels for diesel engine and have received considerable attention in recent years. Ethanol, however, is not a high quality compression ignition fuel. [...]

[...] The properties of the test fuels are given in Table 4.1 & Diesel C8 to C20 ~ 40- (mm2/s) 55-58 Biodiesel - Diethyl ether C2H5OC2H > Flammability limits, rich Flammability limits, lean Calorific value (KJ/kg) Ester content (wt Flash point Oxygen by wt) Sulfur content (wt ppm) Ash (wt Cloud Point Pour Point 9.5 TABLE 4.1 PROPERTIES OF DIESEL, BIO DIESEL AND THEIR BLENDS 5 RESULTS AND DISCUSSION 5.1 FOR TEST FUEL DEE AND DIESEL BLENDS 5.1 .1Brake Specific fuel Consumption Figure 2 show the brake specific fuel consumption (BSFC) variation for the Diesel, Diesel-DEE blends with respect to Brake power. [...]

[...] The temperature was decrease as with the addition of DEE in blends of DEE and Diesel; however it was increased in blends of DEE and Biodiesel As compared to Diesel fuel, CO emission is lower almost least in blend of DEE and Diesel. At higher load CO emission is increase sharply for all blends. At higher load CO emission is minimum in blend of 10% DEE and Biodiesel as compared to all blends of similar fuel. HC emission was decreased because of improvement in combustion achieved by addition of DEE in Diesel. [...]

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