Temperature Increase in a Chain Casing

When a chain casing is used, it may need to be sized for adequate heat dissipation. The temperature increase of the oil in a chain casing can be estimated using Equation 13.1  

Draw a vertical line from the x value (point 1) to intersect the appropriate centers (point 2). 

Draw a horizontal line from the centers (point 2) and read the projected casing area (point 3). 

At the intersection of the appropriate HP and the horizontal line (point 4) from step 3, draw a vertical line and read the approximate casing temperature increase (point 5). 

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