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How to Convert from Joule/second/square meter/K to Btu (th)/hour/square foot/%b0F?
Learn how to convert heat transfer coefficients from joule/second/square meter/K to Btu (th)/hour/square foot/%b0F using this straightforward unit conversion tool.
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Joule/second/square meter/K to Btu (th)/hour/square foot/%b0F Conversion Table
| Joule/second/square meter/K | Btu (th)/hour/square foot/%b0F |
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Custom Unit Conversion Table Generator – Instant Printable Conversion Tables
Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.
Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.
Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.
| Joule/second/square meter/K | Btu (th)/hour/square foot/%b0F |
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What Is This Tool?
This tool converts heat transfer coefficients measured in joule/second/square meter/K to Btu (th)/hour/square foot/%b0F, facilitating the translation between metric SI units and Imperial units commonly used in building energy analysis and HVAC design.
How to Use This Tool?
- Enter the heat transfer coefficient value in joule/second/square meter/K.
- Select joule/second/square meter/K as the input unit.
- Choose Btu (th)/hour/square foot/%b0F as the output unit.
- Click the convert button to see the equivalent value in Btu (th)/hour/square foot/%b0F.
Key Features
- Converts heat transfer coefficients between metric and Imperial units.
- Supports calculations for building envelopes, heat exchangers, and HVAC systems.
- Browser-based and easy to use with quick results.
- Uses the precise conversion rate of 1 joule/second/square meter/K = 0.1762280394 Btu (th)/hour/square foot/%b0F.
Examples
- 5 joule/second/square meter/K converts to 0.881140197 Btu (th)/hour/square foot/%b0F.
- 10 joule/second/square meter/K converts to 1.762280394 Btu (th)/hour/square foot/%b0F.
Common Use Cases
- Calculating U-values and heat loss through building components such as walls, windows, and roofs.
- Specifying convective heat transfer coefficients for fluid flow in HVAC and aerodynamic cooling applications.
- Designing and rating heat exchangers and assessing insulation or coating thermal performance.
- Performing energy and thermal envelope calculations in building construction.
- Sizing and evaluating the performance of HVAC heat exchangers, radiators, and surface heat transfer in Imperial units.
- Comparing insulation performance and calculating steady-state heat loss or gain through assemblies.
Tips & Best Practices
- Ensure consistent use of temperature and area units during conversion.
- Apply this tool mainly under steady-state heat transfer conditions.
- Verify material and fluid properties separately as they affect heat transfer beyond unit conversion.
- Double-check units when switching between Kelvin and Fahrenheit temperature scales.
Limitations
- Assumes steady-state heat transfer and linear temperature differences.
- Requires consistent application of temperature scales and area units to avoid errors.
- Does not account for material or fluid thermal property variations.
Frequently Asked Questions
- What does joule/second/square meter/K measure?
- It measures the heat transfer coefficient representing the rate of heat flow per unit area per unit temperature difference in SI units.
- Why convert to Btu (th)/hour/square foot/%b0F?
- This unit is commonly used in Imperial system engineering to specify heat transfer rates for building energy analysis and HVAC applications.
- Can this converter be used for non-steady-state conditions?
- No, the conversion is designed assuming steady-state heat transfer with linear temperature differences.
Key Terminology
- joule/second/square meter/K
- A unit measuring heat transfer coefficient indicating the heat flow per unit area per degree Kelvin temperature difference in SI units.
- Btu (th)/hour/square foot/%b0F
- An Imperial unit quantifying heat transfer rate through a unit area per degree Fahrenheit temperature difference per hour.
- Heat Transfer Coefficient
- A measure of the rate of heat transfer between a surface and its environment per unit area and per temperature difference.