Consider a 12 exchanger required to cool 68,000 kg/h of ethylene glycol from 121C to 104C using toluene as the coolant. Toluene is heated from 27C to 63C. Use 14 BWG -inch carbon steel pipe with 8-foot lengths and a 1-inch triangular arrangement. the envelope shall have partitions with 25% segmental cut and spaced 6 inches apart. Ethylene glycol will flow inside the tubes as it is more corrosive. Consider a fouling factor of 1.72084x10-4 m2 C/W both on the internal side of the tubes and on the external side. Use the E-NTU method and answer the following questions:

A) Calculate the mass flow of toluene in kg/s

B) Obtain the effectiveness and the NTU of the heat exchanger