Utility Placement

Utility Placement - UTILITY PLACEMENT HEAT AND POWER...

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UTILITY PLACEMENT HEAT AND POWER INTEGRATION
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UTILITY PLACEMENT We now introduce the GRAND COMPOSITE CURVE, which will be useful to analyze the placement of utilities. 1.5 -6.0 1.0 -4.0 14 -2.0 -2.0 Start at the pinch Pinch 250 40 200 190 150 240 30 80 H T
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GRAND COMPOSITE CURVE These are called “pockets” Process-to Process integration takes place here Total heating utility 250 40 200 190 150 240 30 80 Total cooling utility H T
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UTILITY PLACEMENT We now resort to a generic grand composite curve to show how utilities are placed. Cooling Water H T HP Steam LP Steam MP Steam
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UTILITY PLACEMENT Hot Oil placement and extreme return temperatures Hot oil from furnace H Oil minimum return temperature Water maximum return temperature Process T Cooling water
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UTILITY PLACEMENT Furnace Theoretical Flame Temperature T H T stack Process Stream Ambient Temperature Air Fuel Fuel heat value Stack Loss T stack
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Theoretical Flame Temperature T H Process Stream Ambient Temperature Air Stack Loss Fuel T stack An increase in flame temperature reduces stack loss .
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Utility Placement - UTILITY PLACEMENT HEAT AND POWER...

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