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        Dear All,
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        <span style="font-family:Arial;">Does anyone know how to set up the immersed heat exchanger so that its heat transfer capacity can be increased?</span>
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        <span style="font-family:Arial;">My current setting is:</span>
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        <span style="font-family:Arial;">Exchanger type        horizontal tube bank</span><br>
<span style="font-family:Arial;">Fluid        20% Ethylene Glycol solution</span><br>
<span style="font-family:Arial;">Multiplier for Natural Convection Correlation        0.6</span><br>
<span style="font-family:Arial;">Exponent for Rayleigh Number        0.25</span><br>
<span style="font-family:Arial;">Geometry Factor        1</span><br>
<span style="font-family:Arial;">Geometry Factor Exponent        0</span><br>
<span style="font-family:Arial;">Tube lnner Diameter        0.098 m</span><br>
<span style="font-family:Arial;">Tube Outer Diameter        0.105 m</span><br>
<span style="font-family:Arial;">wall Conductivity        1440 kJ/h m K</span><br>
<span style="font-family:Arial;">Tube Length        30 m</span><br>
<span style="font-family:Arial;">Number of Tubes        1</span><br>
<span style="font-family:Arial;">Header volume        0.0226 m3</span><br>
<span style="font-family:Arial;">Cross Sectional Area        0.0075 m2</span><br>
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<span style="font-family:Arial;">This setting will make it difficult for the cold energy of the fluid in the exchanger to be transferred to the water tank. </span>
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        <span style="font-family:Arial;">When the temperature difference between the <span style="font-family:Arial;white-space:normal;">fluid</span> in the <span style="font-family:Arial;white-space:normal;">exchanger</span> and the water outside is 5 <span style="font-family:Arial;white-space:normal;">°C</span>, the temperature of the fluid flowing into the <span style="font-family:Arial;white-space:normal;">exchanger</span> will only increase by 0.13 °C after it flows out. </span>
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        <span style="font-family:Arial;">So how should I change the above parameters to make the heat transfer ability of this exchanger stronger?</span><br>
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