Publication Information
| Title:
| Temperature changes in an initially frozen wood chip pile. |
| Author(s): |
Sampson, George R.; McBeath, Jenifer H. |
| Date: |
1987 |
| Source: |
Res. Note PNW-RN-454. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 10 p |
| Station ID: |
RN-PNW-454 |
| Description: |
White spruce trees and tops were chipped and placed in a pile near Fairbanks, Alaska, in February 1983. The pile was 6 meters in diameter and 6 meters high in a cylindrical shape. Thermocouples were placed at 25 locations within the pile so that temperatures could be tracked over time. Gypsum blocks were placed at 10 locations to determine changes in moisture content. The first evidence that the pile was generating heat appeared at the end of May 1983. This heat accelerated the warming and thawing of the pile. By early August, all thermocouple points were above freezing. The highest temperature recorded was 61 °C near the core of the pile. The chip pile did not freeze at all points the second winter, and all points in the pile were above freezing by early July 1984. The highest temperature recorded inside the pile during the second summer was 41 °C. |
| Keywords: |
Chip fuels, energy, white spruce, Alaska (interior), interior Alaska |
 |
View and Print this Publication (687 KB) |
Publication Notes: |
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
- You may send email to pubrequest@fs.f
ed.us to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
|
![[ Get Acrobat ]](https://webarchive.library.unt.edu/eot2008/20090115204146im_/http://www.treesearch.fs.fed.us/images/getacro.gif) |
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility |
|
|
Citation
Sampson, George R.; McBeath, Jenifer H. 1987. Temperature changes in an initially frozen wood chip pile.. Res. Note PNW-RN-454. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 10 p
| 
