Air at 0.25 kg/s and 0°C enters a cross-flow exchanger and is heated to 20°C by another air stream at 0.14 kg/s and 50°C

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answerhappygod
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Air at 0.25 kg/s and 0°C enters a cross-flow exchanger and is heated to 20°C by another air stream at 0.14 kg/s and 50°C

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Air at 0.25 kg/s and 0°C enters a cross-flow exchanger and is heated to 20°C by another air stream at 0.14 kg/s and 50°C. The two flows are unmixed. As a first step in a design process plot U against A and identify the approximate range of the area for your exchanger. From this chart, select a suitable area for the exchanger.
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