The Convection Conversion Calculator helps users determine the rate of heat transfer due to convection. By inputting specific values such as the convection heat transfer coefficient, surface area of the object, surface temperature, and fluid temperature, the calculator provides the convection heat transfer rate in watts (W). This tool is essential for professionals and students who need to perform these calculations accurately and efficiently.
Formula of Convection Conversion Calculator
The formula used by the Convection Conversion Calculator is:
where:
- Q = Convection heat transfer rate (W)
- h = Convection heat transfer coefficient (W/m²·K)
- A = Surface area of the object (m²)
- Ts = Surface temperature of the object (°C or K)
- T∞ = Fluid temperature away from the surface (°C or K)
Table for Common Convection Conversion Values
Below is a table with common convection heat transfer coefficients for various fluids and conditions, which can be used for quick reference:
| Fluid/Condition | h (W/m²·K) |
|---|---|
| Air (natural convection) | 5 – 25 |
| Water (natural convection) | 50 – 1000 |
| Air (forced convection) | 10 – 500 |
| Water (forced convection) | 300 – 10,000 |
Example of Convection Conversion Calculator
Let’s consider an example to illustrate how the Convection Conversion Calculator works:
Example:
- Surface area of the object (A): 2 m²
- Surface temperature of the object (Ts): 80°C
- Fluid temperature away from the surface (T∞): 30°C
- Convection heat transfer coefficient (h): 10 W/m²·K
Using the formula:
Q = 10 * 2 * (80 – 30)
Q = 10 * 2 * 50 = 1000 W
The convection heat transfer rate is 1000 W.
Most Common FAQs
Convection heat transfer is the process of heat transfer between a solid surface and a fluid (liquid or gas) in motion. It involves the movement of heat through the fluid due to temperature differences.
The convection heat transfer coefficient (h) is a measure of the efficiency of heat transfer between a surface and a fluid. It varies depending on the type of fluid, the nature of the flow, and the properties of the surface.
Yes, the Convection Conversion Calculator can be used for both natural and forced convection. Users need to input the appropriate heat transfer coefficient based on the type of convection.