The Brayton refrigeration cycle of 10.43 is modified by the introduction of a regenerative heat exchanger. In the modified cycle, compressed air enters the regenerative heat exchanger at 350 K and is cooled to 320 K before entering the turbine. Determine, for the modified cycle, (a) the lowest temperature, in K. (b) the net work input per unit mass of air flow, in kJ/kg. (c) the refrigeration capacity, per unit mass of air flow, in kJ/kg. (d) the coefficient of performance.
The rise of Persia and the Ionian revolt o Assyria Agricultural people Along the Tigris river Raided their neighbors Ruled by bandits Took Babylon in 739 BC Burned it in 689 The Assyrians had very sophisticated siege weapons Subjugation of Israel They submitted to Assyria The Assyrians were a very aggressive people Phoenicians dealt with Assyrians by colonizing other places and getting rich so they could buy protection o Rise of Persia Cyrus conquered the median empire and created Persia in 550