Уравненьица:
where Pd is the dynamic pressure, V ⋅ is the volume flow rate, and the net refrigeration power is simply taken as the acoustic power at the cold end. The symbols indicate a time-averaged quantity. The acoustic power at the hot end of the regenerator is simply the PV power of the compressor. Because the regenerator is assumed to be perfect, the acoustic power varies along its length in accordance with the specificvolume, which is proportional to temperature for an ideal gas. Ответ на предыдущий вопрос.The maximum COP from Eq. (4) is 1.0, but only when the cold temperature becomes equal to the hot temperature. A comparison of the COP from Eq. (4) with the Carnot COP from Eq. (1) shows that the only difference is the presence of the Tc term in the denominator of Eq. (1). + концовка.
Мой взгляд: Указанный член - объем обратной (реверсивной) регенерации в условиях низких температур, который используется для того, чтобы содействовать компримированию.
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