Question

Industrial condenser is commonly used to condense vapor into liquid. A condenser can be represented by a cooler for simple material and energy balances calculations. In this case, a cooler is used to cool a stream of 64 kg/min methanol vapor, at 123 °C and atmospheric pressure, to completely convert it to methanol liquid at 11 °C. Draw the flowchart of the process and determine the heat transfer rate (kW). [15 marks]

Answer 1

Solutions M = 64 64 kg / min = 64 Iglesec I = 123°C , T=1ĽC 60 for Methanol To = 64.7°C (Coliquid = 2.534 Kiligue (Colour = 3.62 KJ Vapour th= 1100 KI kgr kg # S = MACP Prapour * G-76) + mx Ahv tmx CP Eliquid * (To- i = 64 .kg 60 * 3.62 KJ *123–64-7/8 +1100 KT + 2.534.KI (54.7–14) sec Igre Kygo Q= 64 % 60 sec 211-046+1100 +136.0758) KJ Ikg # Answers Q = 1543.6 KW Affroy

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