Engineering, 21.07.2021 17:30, fespinoza019

Pure ethane is burned completely with preheated 20% excess air. The combustion product gas passes continue on to the furnace. The following data are recorded for the preheater inlet and outlet streams: Flow rate in (LIS) Tin (Â°C) Pin (tor) Flow rate out (US) Tout (Â°C) Pout (tor)
Product gas 945 830 1.98 x 10^5 850 912
Air 5.53 x10^4 30 684 836

The temperature of the air leaving the preheater is not known because the thermocouple mounted in that pipe has malfunctioned.

Requried:
Calculate the molar flow rates (mol/s) of the two streams flowing through the preheater and the temperature of the air leaving the preheater.

Answers: 2

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Pure ethane is burned completely with preheated 20% excess air. The combustion product gas passes co...