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1. (WO2017151766) DESIGNS FOR ENHANCED RELIABILITY AND CALIBRATION OF LANDFILL GAS MEASUREMENT AND CONTROL DEVICES

Pub. No.:    WO/2017/151766    International Application No.:    PCT/US2017/020196
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: G01N 1/22
G01N 1/24
Applicants: LOCI CONTROLS, INC.
Inventors: PALLO, Nathan
CAMPANELLA, Andrew
MARTIN, Ian
MICHELS, Joseph, G.
QUIGLEY, Peter
Title: DESIGNS FOR ENHANCED RELIABILITY AND CALIBRATION OF LANDFILL GAS MEASUREMENT AND CONTROL DEVICES
Abstract:
An apparatus for sampling landfill gas from a landfill flowing through a pipe. The apparatus may comprise: an enclosure configured to receive a section of the pipe; a gas sampling port in the section of the pipe; at least one sensor device disposed in a region of the enclosure, the at least one sensor being coupled to the section of the pipe through the gas sampling port; and thermal insulation positioned to retain heat from the section of the pipe in the region of the enclosure. A method of operating a landfill gas recovery system. The method may comprise: flowing gas from a well riser pipe through a sampling subsystem to a collection system; and heating a portion of the sampling subsystem with the gas flowing from the well riser pipe to the collection system.