1. How are Fh and Fc values affected by time? Discuss the reasons. 2. Does the j

Question

1. How are Fh and Fc values affected by time? Discuss the reasons.
2. Does the j value change by location or time? Discuss the reasons.
3. Where would you expect the slowest hearing point in a can of conduction heated food to be located? Discuss the reasons.
4. Can f and j values be used to determine the time required for the slowest hearing point in the can to reach a selected temperature? Discuss. 1. How are Fh and Fc values affected by time? Discuss the reasons.
2. Does the j value change by location or time? Discuss the reasons.
3. Where would you expect the slowest hearing point in a can of conduction heated food to be located? Discuss the reasons.
4. Can f and j values be used to determine the time required for the slowest hearing point in the can to reach a selected temperature? Discuss.
2. Does the j value change by location or time? Discuss the reasons.
3. Where would you expect the slowest hearing point in a can of conduction heated food to be located? Discuss the reasons.
4. Can f and j values be used to determine the time required for the slowest hearing point in the can to reach a selected temperature? Discuss.

Explanation / Answer

1) Fh and Fc values are parameters that define a heat penetration curve. Heating rate factor Fh is time required for heat penetration curve to traverse one log cycle. It is the negative inverse of the slope. If the Fh value is low, then the heating rate will be faster. h stands for heating. Fc is the cooling factor and gives the cooling curve. It is the time required for cooling curve to traverse one cycle. Hence Fc and Fh are affected by time.

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