Steam with 80% quality is being used to heat a 40% total

solids tomato purée as it flows through a steam injection heater

at a rate of 400 kg/h. The steam is generated at 169.06 kPa

and is fl owing to the heater at a rate of 50 kg/h. Assume that

the heat exchanger effi ciency is 85%. If the specifi c heat of

the product is 3.2 kJ/(kg K), determine the temperature of the

product leaving the heater when the initial temperature is

50C. Determine the total solids content of the product after

heating. Assume the specifi c heat of the purée is not infl uenced by the heating proce

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