The recorded waveforms were analyzed (Spectrum, 16k, Hamming, Amplitude Density) using Chart software (v 5.02 ADInstruments). The Fourier analysis of the respiratory belt waveform was used to find the frequency of ventilation. The strength of the oscillatory component of each plethysmographic ...
The line chart shows that pump performance was best at the flow coefficient of 0.026. Therefore, this best efficiency point (BEP) was the best reference for the first pump design step. After this investigation, the pump moved to another continuous step to check the effect of changeable angles...