Your buddy in the development lab ran the bomb calorimetry heat capacities for e

Question

Your buddy in the development lab ran the bomb calorimetry heat capacities for each feed stream saving you the trouble of having to calculate streams each using the constituent heat capacities:

Feedstock – 0.97 Btu/ (lb * F)

Catalyst = 0.99 Btu / (lb * F)

Reagent = 0.85 Btu / (lb * F)

You also know that you get about 1000 BTU’s of heat from condensing one pound of steam.

You have excellent heat transfer in your exchanger and jacket so you can assume all the heat put into the system goes into heating the fluid in the reactor.

a. How much steam do you have to supply to the reactor ?

b. Your boiler breaks down and your boss tells you to rent a boiler and get it in here to get production back on line. The rental boiler rep says all he has available is a 300 BHP (or Bohp, which is an abbreviation for the units of boiler horsepower) rental unit. Is this unit sufficient ? Note the unit BHP, Bohp, or “boiler horsepower” is common in the steam generation industry, 1 BHP (or boiler hp) = 33475 BTU/hr. Do not confuse BHP (Boiler horsepower) with BHP (brake horsepower).

Explanation / Answer

Answer:

Provided that 1000 BTU will produced from condensing of one pound of steam.

33475 BTU will requires = (33475*1)/1000

Steam required = 33.475 pounds of steam is required

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