Record Display for the EPA National Library Catalog

RECORD NUMBER: 46 OF 79

OLS Field Name OLS Field Data
Main Title Measurement of Methane Emissions from Underground Distribution Mains and Services.
Author Campbell, L. M. ;
CORP Author Radian Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1994
Year Published 1994
Report Number EPA-68-D1-0031; EPA/600/A-95/018;
Stock Number PB95-174793
Additional Subjects Gas distribution ; Transmission loss ; Gas pipelines ; Natural gas distribution systems ; Underground ; Methane ; Leakage ; Natural gas industry ; Flow measurement ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB95-174793 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 05/26/1995
Collation 20p
Abstract
The paper reports results of measurements of methane emissions from underground distribution mains and services. In the program, leakage from underground distribution systems is estimated by combining leak measurements with historical leak record data and the length of underground pipe to determine the average leakage rate per unit length of pipe. The leakage rate per mile is multiplied by the miles of pipe to estimate the total leakage of a series of progressively larger laminar flow elements (LFEs) that can rapidly and very accurately measure a pressure differential across the LFE and be converted into a flow rate.