Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Influence of an iron fuel additive on the performance and emissions of a DI diesel en
Post: #1

The influence of the diesel particulate filter additives (DPA) SATACEN and EOLYS on biodiesel fuel quality has been evaluated. Both additives significantly affected the oxidation stability of neat biodiesel. The influence on acid values and CFPP was found to be only small. Combination of diesel additives with biodiesel additives like oxidation stability and CFPP improvers led to similar results. Results indicated that DPA also lowered the efficiency of the oxidation stability improver Baynox. Furthermore, the CFPP additives Chimec and Infineum were also prone to have a small influence on biodiesel oxidation stability.

Engine Performance Additives

This class of additives can improve engine performance. The effects of different members of the class are seen in different time frames. Any benefit provided by a cetane number improver is immediate, whereas that provided by detergent additives or lubricity additives is typically seen over the long term, often measured in tens of thousands of miles.

Cetane Number Improvers (Diesel Ignition Improvers) Cetane number improvers can reduce combustion noise and smoke. The magnitude of the benefit varies among engine designs and operating modes, ranging from no effect to readily perceptible improvement.
2-Ethylhexyl nitrate (EHN) is the most widely used cetane number improver. It is sometimes also called octyl nitrate. EHN is thermally unstable and decomposes rapidly at the high temperatures in the combustion chamber. The products of decomposition help initiate fuel combustion and, thus, shorten the ignition delay period from that of the fuel without the additive.

The increase in cetane number from a given concentration of EHN varies from one fuel to another. It is greater for a fuel whose natural cetane number is already relatively high. The incremental increase gets smaller as more EHN is added, so there is little benefit to exceeding a certain concentration. EHN typically is used in the concentration range of 0.05% mass to 0.4% mass and may yield a 3 to 8 cetane number benefit.

Other alkyl nitrates, as well as ether nitrates and some nitroso compounds, also have been found to be effective cetane number improvers, but they are not currently used commercially. Di-tertiary butyl peroxide was recently introduced as a commercial cetane number improver.

A disadvantage of EHN is that it decreases the thermal stability of some fuels. The effect of the other cetane number improvers on thermal stability is unknown, but it seems likely that they will be similarly disadvantaged. Several laboratories are investigating this issue.

Injector Cleanliness Additives Fuel and/or crankcase lubricant can form deposits in the nozzle area of injectors “ the area exposed to high cylinder temperatures. The extent of deposit formation varies with engine design, fuel composition, lubricant composition, and operating conditions. Excessive deposits may upset the injector spray pattern (see Figure 7-1) which, in turn, may hinder the fuel-air mixing process. In some engines, this may result in decreased fuel economy and increased emissions.

read more

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: dual fuel diesel lpg presentation, project x golf iron, additive manufacturing ppt free download, ferrocene mechanism of fuel additive, measurement of iron using squid, seminar presentation ofelectric iron, balas additive algorithm matlab,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  NANOFLUIDS FOR HIGH PERFORMANCE COOLING SYSTEM project report tiger 4 3,902 12-02-2015 12:11 AM
Last Post: Guest
  Diesel Particulate Filter computer science crazy 3 5,958 21-08-2014 11:33 PM
Last Post: Guest
  fuel from plastic waste full report seminar presentation 15 30,461 21-04-2014 12:50 PM
Last Post: Guest
  Fuel Cells on Aerospace computer science crazy 5 7,406 21-02-2014 04:02 AM
Last Post: Guest
  DIGITAL FUEL INJECTION SYSTEM summer project pal 1 2,557 05-01-2013 12:05 PM
Last Post: seminar details
  Bi-fuel vehicles summer project pal 4 2,561 20-11-2012 12:58 PM
Last Post: seminar details
Bug Bio-Gas As Alternative Fuel In IC Engines Computer Science Clay 9 9,993 03-10-2012 01:03 PM
Last Post: seminar details
  ROTARY DISTRIBUTOR DIESEL FUEL INJECTION PUMP project report helper 1 2,574 16-03-2012 01:04 PM
Last Post: seminar paper
  Proton Exchange Membrane Fuel Cell Characterizationf or Electric Vehicle Applications project report helper 1 1,494 15-03-2012 03:29 PM
Last Post: seminar paper
  Methanol Fueled Marine Diesel Engine project topics 3 4,957 13-03-2012 11:49 AM
Last Post: seminar paper