Use of a fiber optic distributed temperature sensing system for thermal response testing of ground-coupled heat exchangers

摘要

A thermal response test (TRT) is commonly conducted at a site proposed for the installation of a ground-coupled heat pump system. The purpose of the TRT is to gather local data to infer thermal properties of the soil. Accurately estimating soil thermal properties enables designers to size the geofield appropriately and supports improved simulations of ground heat exchanger (GHX) systems to better estimate the system performance over both shorter-term and longer-term intervals.