The formula to calculate the Heat Transfer (Q) is:
\[ Q = U \cdot A \cdot \Delta T_m \]
Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). The Overall Heat Transfer Coefficient is a measure of the overall ability of a series of conductive and convective barriers to transfer heat. Area of heat exchanger is the surface area of the heat transfer surface within the exchanger that is responsible for exchanging heat between two fluids. The log mean temperature difference (LMTD) is a logarithmic average of the temperature difference between the hot and cold streams at each end of the heat exchanger.
Let's assume the following values:
Using the formula:
\[ Q = 40 \cdot 6.68 \cdot 16 \approx 4275.2 \]
The Heat Transfer is approximately 4275.2 Joule.
| Overall Heat Transfer Coefficient (W/m²·K) | Area (m²) | LMTD (K) | Heat Transfer (Joule) |
|---|---|---|---|
| 30 | 6.68 | 16 | 3,206.399999999999636 |
| 35 | 6.68 | 16 | 3,740.799999999999727 |
| 40 | 6.68 | 16 | 4,275.199999999999818 |
| 45 | 6.68 | 16 | 4,809.599999999999454 |
| 50 | 6.68 | 16 | 5,344.000000000000000 |