Posted by Cody CBD on August 24, 2009 at 00:18:00 from (72.21.74.211):
In Reply to: Question on hay fires? posted by Larry here on August 23, 2009 at 21:24:40:
What you are hearing about is called spontaneous combustion by fire safety types. Simply stated, when the heat in a material exceeds the material's ignition point and sufficient oxygen (air) is present the material will begin to burn. Different materials have very different ignition points. In the natural world a simple rule of thumb says the denser a material is the more heat it requires to burn, hence, a single match will not start a 2x4 burning but it will ignite a bale of hay because the hay is fine grass and/or alfalfa. In spontaneous ignition the heat is generated in the same manner as in sewage systems - natural decomposition of biological material by bacteria and fungi (fermentation). When hay is baled damp more organisms can grow generating more heat inside the bale thus raising the temperature inside the bale quicker than heat can be dissipated to the outside. When that heat exceeds the ignition point of the hay it begins to burn. Dry hay does not support as much fermentation so less heat is generated inside the bales. The process is the same regardless of the bale shape or size. Larger bales dissipate heat slower than small bales BUT if small bales are stacked tight, as in a shed or barn, they will hold as much heat as larger bales. Hay fires are hot, dirty and very time/water consuming to extinguish - be careful to buy dry hay!!!
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [Read Article]
Latest Ad:
1945 Farmall wide body gas with pto and front plow. Runs good but needs new points.
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
