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Abstract

An enthalpy-based ground heat exchanger (GHE) performance test instrumentation system for connection to a ground heat exchanger (GHE) installed in a deep Earth environment during performance testing operations. The enthalpy-based GHE performance test instrumentation system includes a fluid pumping module for pumping, at controlled rate, aqueous-based heat transfer fluid through a test ground loop in which a GHE installation is installed, for performance testing. The GHE installation includes inlet and outlet ports for connection to the enthalpy-based GHE performance test instrumentation system. A fluid heating module heats the aqueous-based heat transfer fluid while being pumped through the test ground loop including the GHE installation, so as to control the temperature of aqueous-based heat transfer fluid entering the GHE installation during performance test operations. The data logger/recorder logs and records data collected from temperature and pressure sensors installed at the inlet and outlet ports of the GHE installation, and indicating the temperature and pressure of aqueous-based heat transfer fluid entering and exiting from each GHE installation. A computer system runs an enthalpy-based GHE performance calculation program for processing data collected by the data logger/recorder, and calculating enthalpy-based performance measures for the GHE installation based on data collected by the data logger/recorder. A wireless radio frequency (RF) based transceiver is provided for wirelessly transmitting data from the computer system to a remote wireless RF transceiver station, for reception by the remote RF transceiver station and stored for subsequent processing and display.

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First Claim