AdBlue Fluid and Cleaner Diesel Emissions

AdBlue Fluid and Cleaner Diesel Emissions AdBlue is the German brand name for a clear, non-toxic- though slightly corrosive to some metals- aqueous urea solution used to treat exhaust on  modern clean diesel engines. The generic name for a chemically equivalent solution used in the non-European market (predominantly North America) is Diesel Emissions Fluid (DEF). The primary use of AdBlue and similar DEFs is to be used in conjunction with a Selective Catalytic Reduction (SCR) converter to control oxides of nitrogen (NOx) diesel emissions. On average, NOx emissions are reduced by approximately 80 percent because of this process. How DEFs Work The AdBlue solution is comprised of 32.5 percent high purity urea diluted in distilled water and carried onboard the diesel vehicle in a special independent tank. Under the direction of the onboard computer and a NOx sensor, the fluid is pumped into the exhaust stream at the rate of 2 to 4 ounces to a gallon of ultra-low sulfur diesel fuel (ULSD) consumed. There, in the hot exhaust stack, the urea solution is converted into ammonia (NH3) which reacts with NOx in the exhaust. The resulting chemical breakdown  and re-bonding of the constituent elements of each reactant produce plain nitrogen and water vapor instead of harmful oxides of nitrogen.   Standardized as Aqueous Urea Solution (AU) 32, the AdBlue solution is trademarked to German company the German Association of the Automotive Industry (VDA), but there  is a variety of other DEFs available on the American market including BlueTec by German automotive corporation Daimler AG and the Canadian version H2Blu. How and Where Is AdBlue Replenished? Refilling the AdBlue tank is  not a do-it-yourself task. Although it is possible to purchase the solution at the retail level, it is generally available only through a dealership or service shop. The systems are designed with a capacity of several gallons (seven to ten) which translates into several thousands of miles. Under normal vehicle operating conditions, the DEF tank needs to be refilled only during regularly scheduled maintenance. However, as of 2013, trucks and diesel engine cars have been created to allow users to refill their own DEF tanks. As a result, a number of truck stops and gas stations have begun offering a DEF pump next to the diesel fuel pump. You may even purchase small quantities- or order large containers for commercial use- to keep at home. Although safe to handle and non-toxic, AdBlue can eat through some metals. It is recommended that DEFs be stored at cool temperatures away from direct sunlight and moisture in a well-ventilated area. According to a Cummins Filtration report on the standard, AdBlue freezes at 12 degrees Fahrenheit, but the process of freezing and thawing does not degrade the product as the water in the urea  solution will freeze and thaw as the fluid does.

Writing with Rhythm

Writing with Rhythm Writing with Rhythm Writing with Rhythm By Guest Author This is a guest post by Hugh Ashton. If you want to write for Daily Writing Tips check the guidelines here. When I was substantially younger than I am now, I wrote masses of anguished adolescent poetry. My favorite verse form was the sonnet, a style and format that is maybe little surprising for a teenager to be writing. For those who slept through this part of their English course, a sonnet is a formal 14-line poem with a complex rhyme scheme in iambic pentameter. I no longer indulge in such musings, but I learned many tricks and techniques from writing my sonnets and other poems. First and foremost, writing poetry, especially formal poetry, tells you a good deal about the internal rhythms of the English language. Most of the spoken English language moves to a fundamental iambic rhythm: di-DUM di-DUM di-DUM. Put five of these together and you have a line of blank verse: Now is the winter of our discontent Or Is this the face that launched a thousand ships? Or The stars move still, time runs, the clock will strike, The devil will come, and Faustus must be damnd. In the second line of the last quotation, note how Marlowe breaks the rhythm slightly for emphasis (if you dont slur the word devil into one syllable, that is), and then reverts to the set rhythm for the second half of the line. You dont have to write in this formal style, of course, but you should make yourself aware of the internal stresses in English prose, and how they carry readers through your writing. Until relatively recently (a few hundred years ago), all reading was done out loud everyone read by vocalising the written words. When these rules of internal rhythm are broken, as in this quotation from a camera manual, the result is clotted prose prose which does not flow: Depth of field is the area of acceptable sharpness in front of and behind the subject in focus. The larger the F-number used (from F2.8 to F22), the deeper the depth of field. On the contrary, the smaller the F-number (from F22 to F2.8), the shallower this zone of acceptable sharpness. Its not bad English its free of jargon but its not good either. Another reason why these sentences do not flow is the lack of macro rhythm,the pauses for comprehension (and breath!) in the middle of a sentence. For another example, take this sentence from a recent Pentagon report: There is a crisis of confidence among Afghans in both their government and the international community that both undermines our credibility and emboldens the insurgents. If you read this out loud, its all got to be done in one breath. Theres no pattern to the sentence. By the time youve got to the end, you forget what the beginning was like. Heres a suggested rewriting: The Afghan people are experiencing a crisis of confidence in both their own government and the international community, and this is undermining our credibility, as well as emboldening the insurgents. Not perfect Id probably split this sentence into two but the sentence now has a beginning, a middle, and an end. Note how there is also an implied contrast between the Afghan people and the insurgents in my version that is somewhat lacking in the Pentagon original. Returning to my youthful bad poetry (and here is an example of super-macro rhythm in a piece of writing the thematic tie-up between the start of a piece and the end), the other major thing I learned from writing formal verse was to use a mental thesaurus, and not to be afraid to change the order of my words. I say a mental thesaurus, because a paper thesaurus can be too restrictive; wandering around the canyons of your mind can produce some interesting twists and turns that would never be explored using a printed page. Its all too easy to write bad ungrammatical verse: As on my bed I toss and turn Remembering things I tried to learn But relatively easy to recast these lines into something more grammatical and natural: Im lying wide-eyed in my bed While half-learned facts race round my head By forcing the grammar to be natural, I have also forced myself to think of different words and thereby avoid clichà ©s and hackneyed phrases. It works for prose too. Try to read your work out loud before you submit it. Does it work as a live reading? Does the language flow? Do the sentences hang together? Does the piece have thematic coherency? In other words, have you got rhythm? Hugh Ashton is a writer and journalist who has lived in Japan for the past 21 years. As a copywriter and rewriter of translated material, he has become increasingly pernickety and critical of his own writing and that of others. His latest published work is an alternate history novel, Beneath Gray Skies, which is available from Amazon, etc. Details of the book may be found at beneathgrayskies.com. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Writing Basics category, check our popular posts, or choose a related post below:50 Synonyms for â€Å"Leader†8 Types of Parenthetical PhrasesCapitalizing Titles of People and Groups