A condenser is required to condense n-propanol vapor leaving the top of a distillation column. The n-propanol is essentially pure and is a saturated vapor at a pressure of 2.1 bara. The condensate needs to be subcooled to 45°C.

Design a horizontal shell and tube condenser capable of handling a vapor rate of 30,000 kg/h. Cooling water is available at 30°C and the temperature rise is to be limited to 30°C. The pressure drop on the vapor stream is to be less than 50 kN/m² and on the water stream less than 70 kN/m² . The preferred tube size is 16 mm inside diameter, 19 mm outside diameter, and 2.5 m long.