Normalized heat loss is defined asequation Q

Normalized heat loss Raltegravir defined asequation(3)Q˙loss,norm=Q˙lossW˙comp,el.
Fig. 15 shows the normalized heat loss for the test stand data as a function of discharge temperature and saturated suction temperature, which is within a range of 0–6%. Discharge temperature tends to correlate with an increase in heat loss.
Fig. 15. Normalized heat loss for test stand data sets (60 Hz only, calorimeter data marked).Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 16 shows the heat loss for the in-system testing as a function of discharge temperature and saturated suction temperature. 69% of the data is within a range of 4–8% of normalized heat loss. The discharge temperature tends to decrease with increasing saturated suction temperature (= increasing pressure), while the normalized heat losses stay approximately constant due to the simultaneous reduction in compressor speed and mass flow rate. Some points have a higher heat-loss, four of these points are mapping points with a higher suction superheat, while the two points with the highest heat loss are points with reduced compressor speed.