Dr. A. Azimi, P.Eng, Department of Civil Engineering, Lakehead University
Conventional inspection techniques have been employed to detect tightness defects, cracks and partial pipe damages such as closed circuit television. The conventional inspection and monitoring techniques are very labor intensive and can be only implemented by trained operators. These factors significantly increase the operational cost of the condition assessment of wastewater collection systems. The temperature of residential wastewater in sewer pipelines ranging from 18 to 25 degrees whereas the infiltrated water due to snowmelt ranging from 0 to 5 degrees. Considering the large temperature difference between the wastewater and the infiltrated underground water, thermal probes with suitable sensitivity and accuracy will be able to detect the locations of cracks and potential pipe damages. In this presentation, results of preliminary experiments are shown to evaluate the performance of thermal probes and infrared cameras to show the proof of concept for wireless monitoring of sewer pipeline detection. In addition, sensitivity of infrared cameras to detect temperature and its accuracy to show the magnitude of the infiltrated flow will be examined.