A product food with a moisture content of 80% in canned diameter 5 cm want to be frozen. Density product is 1000 kg/m³, the thermal conductivity is 1.0 W/(m K), and initial temperature frozen is -1.75 °C. After 10 hours in medium freezer -25 °C, the temperature of the products be -10 °C. Estimate coefficient heat transfer convection medium freezing. Assume cans as infinite cylinder. a. h = ... W/(m² K).

PARTS A and B ( Label Them ) SOLVE CAREFULLY!! Please Write Clearly and Box the final Answer for both Question : Chilled pharmaceutical is transported through a steel pipe ( k= 15.0 W/m.k) with an inner diameter of 36 mm and a wall thickness of 2 mm. The liquid and ambient air are at temperatures of 5 C and 25 C, while the inner and outer convection coefficients are 500 W/m2.K and 10 W/m2.K respectively. If a 10 mm thick layer of calcium silicate ( k= 0.05 W/m.K) is applied to the tube, answer the following questions: Part A : What is the heat gain per 1m of the tube? Part B : What is the outside temperature of the calcium silicate?