- Author
- Fang, J. B.
- Title
- Computer Program for Calculating Heat Loss From Underground Heat Distribution Systems.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Sponsor
- Army Corps of Engineers, Washington, DC Naval Facilities Engineering Command, Alexandria, VA Air Force Engineering and Services Center, Tyndall AFB, FL
- Report
- NBSIR 86-3367, May 1986, 30 p.
- Distribution
- Available from National Technical Information Service
- Keywords
- computer programs | district heat distribution systems | nonlinear lease squares fitting | underground heat distribution system | thermal conductivity
- Abstract
- A computer program developed specifically for computing the heat loss from a direct buried underground heat distribution system based on the measured values of soil thermal conductivity and the earth temperatures over the underground pipes is presented. The heat loss rates and locations of the underground pipes were calculated by statistically determining the parameters in a theoretical expression for the underground temperature field around a two-pipe system using the nonlinear lease squares method. Sample calculations based on two sets of test data obtained from the scale model experiments are presented, and the results obtained from this computer code implemented on a microcomputer are compared with those by the DATAPLOT software package installed on a mainframe computer.