Print Email Facebook Twitter Assessment of detection limits of fiber-optic distributed temperature sensing for detection of illicit connections Title Assessment of detection limits of fiber-optic distributed temperature sensing for detection of illicit connections Author Nienhuis, J. De Haan, C. Langeveld, J.G. Klootwijk, M. Clemens, F.H.L.R. Faculty Civil Engineering and Geosciences Department Water Management Date 2012-09-04 Abstract Distributed Temperature Sensing (DTS) with fiber-optic cables is a powerful tool to detect illicit connections in storm sewer systems. High frequency temperature measurements along the in-sewer cable create a detailed representation of temperature anomalies due to illicit discharges. The detection limits of the monitoring equipment itself are well-known, but there is little information available on detection limits for the discovery of illicit connections, as in sewers mixing and attenuation also plays an important role. This paper describes the results of full-scale experiments aiming to quantify the detection limits for illicit connections under various sewer conditions. Based on the results, a new monitoring setup for (partially) filled sewer conduits has been proposed. Subject DTSillicit connectionsdetection limittemperature monitoringfoul sewerstorm sewer To reference this document use: http://resolver.tudelft.nl/uuid:718734de-e33d-47f1-8472-6cf88f1d0528 Publisher IAHR/IWA Joint Committee Urban Drainage, Working Group on Data and Models Source 9th International Conference on Urban Drainage Modelling, Belgrade, Serbia, 4-6 September 2012 Part of collection Institutional Repository Document type conference paper Rights (c) 2012 The Author(s) Files PDF 289819.pdf 355.72 KB Close viewer /islandora/object/uuid:718734de-e33d-47f1-8472-6cf88f1d0528/datastream/OBJ/view