EIRFT

AcronymDefinition
EIRFTExtended Inversion-Recovery Fourier Transform
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References in periodicals archive ?
The system heating capacities plot labeled as "Rated" is determined using Equation 6 with CAPFT and EIRFT values set to 1.0 and matches the manufacturer data exactly for the entire range of PLR.
Correcting the predicted cooling electric power from the nominal indoor coil entering air condition to the rated test condition using the CAPFT and EIRFT modifying curve brings down the prediction error in the range 0.73%-0.79% with a mean value of 0.78% which is within the margin of error of the electric power prediction.
The VRF-system model, which is based on the outdoor coil performance, uses dual range CAPFT biquadratic capacity modifier curves for temperature, dual range CAPFT and EIRFT biquadratic electric power modifier curves for temperature, and dual range PFPLR cubic or quadratic electric power modifier curves for part-load ratio.
EIRFT = biquadratic EIR modifying curves as a function of temperature, (--)
The CAPFT and EIRFT performance are represented by dual range curves.
The normalized energy input ratio biquadratic curve as a function of average indoor coil entering air temperature and outdoor coil entering air temperature (EIRFT) is given by: