Question

balance of matter and energy

An autoclave with 2000 canned tuna have been heated uniformly at a temperature of 116 ° C. It is desired to cool the canned until 35 ° C before removing the cans from the autoclave. What amount of water is required for cooling if it enters 20 ° C and leaves at 30 ° C

Data Tuna specific heat (cp) = 3.65 kJ / kg ° C Specific heat of the walls of the cans (cp) = 0.46 kJ / kg ° C Specific heat of water (cp) = 4.18 kJ / kg ° C Tuna / tin dough = 450 g Aluminum mass / can = 55 g Energy required to cool the autoclave = 75000 kJ It is assumed that there is no heat loss.

Draw the block diagram of the process mentioned in the exercise, the stages can be represented by blocks. Is important to define the inputs and outputs of each stage. b. Assign to each stream a symbol for the flows of entrance and exit, also include symbols for the currents of each component. c. Identify the conditions of each stream especially Temperature, and specific heat. d. Carry out the calculations, and interpret if the results are coherent

Answer 1