What does foot pound/minute/square foot measure?

It measures the rate of energy transfer per unit area, specifically one foot-pound transferred each minute across one square foot of surface.

In which industries is Btu (th)/second/square inch commonly used?

It is commonly applied in fire testing, fire-protection engineering, welding experiments, and furnace testing involving high, localized heat fluxes.

Why is the conversion factor so small between these units?

Because the units differ significantly in area and time scales, with foot pound/minute/square foot representing larger surfaces and slower timing than Btu (th)/second/square inch, which targets very high heat fluxes on small areas instantaneously.

Convert Foot pound/minute/square foot to Btu (th)/second/square inch

Easily convert heat flux density values from foot pound per minute per square foot to Btu (th) per second per square inch using this precise and straightforward online converter.

Foot pound/minute/square foot

Btu (th)/second/square inch

Please check your input. It must be a valid numeric value.

Foot pound/minute/square foot to Btu (th)/second/square inch Conversion Table

Foot pound/minute/square foot	Btu (th)/second/square inch

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

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Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Foot pound/minute/square foot to Btu (th)/second/square inch Conversion Table
Foot pound/minute/square foot	Btu (th)/second/square inch

Explore More Heat Flux Density Units Converter

What Is This Tool?

This online converter transforms heat flux density measurements from foot pound per minute per square foot into Btu (th) per second per square inch, facilitating conversions between legacy imperial units and those used in specialized high-intensity heat flux applications.

How to Use This Tool?

Enter the heat flux density value measured in foot pound/minute/square foot.
Choose or confirm the source unit as foot pound/minute/square foot.
Select the target unit as Btu (th)/second/square inch.
Click the convert button to see the equivalent value.
Use the results for engineering, fire protection, or industrial heat flux analysis.

Key Features

Converts heat flux density values between two specific imperial units.
Uses a precise conversion rate to ensure accurate transformations.
Supports applications in HVAC, fire testing, welding, and industrial furnace analysis.
Browser-based tool with an easy-to-use interface suitable for professionals and students.

Examples

10 foot pound/minute/square foot equals 1.4883419572419e-6 Btu (th)/second/square inch.
1,000 foot pound/minute/square foot equals 0.00014883419572419 Btu (th)/second/square inch.

Common Use Cases

Describing heat loss or gain in older U.S. HVAC and building envelope documents.
Quantifying radiant heat flux during fire testing and fire protection engineering.
Analyzing localized high heat loads in welding, plasma torch, and propulsion plume experiments.
Evaluating heat input in industrial furnace and burner performance using imperial units.

Tips & Best Practices

Always double-check unit selection to ensure accurate conversion results.
Consider the difference in area and time scales between units before comparing values.
Use scientific notation to handle very small decimal conversion outcomes effectively.
Apply this conversion thoughtfully when transitioning between legacy and specialized heat flux measurements.

Limitations

The extremely small conversion factor requires attention to numerical precision.
Units differ in area and time dimensions, complicating direct comparisons.
Btu (th)/second/square inch is designed for high-intensity, localized heat flux scenarios.
Conversions from larger area/slower time units may produce very small results needing scientific notation.

Frequently Asked Questions

What does foot pound/minute/square foot measure?: It measures the rate of energy transfer per unit area, specifically one foot-pound transferred each minute across one square foot of surface.
In which industries is Btu (th)/second/square inch commonly used?: It is commonly applied in fire testing, fire-protection engineering, welding experiments, and furnace testing involving high, localized heat fluxes.
Why is the conversion factor so small between these units?: Because the units differ significantly in area and time scales, with foot pound/minute/square foot representing larger surfaces and slower timing than Btu (th)/second/square inch, which targets very high heat fluxes on small areas instantaneously.

Key Terminology

Foot pound/minute/square foot: A heat flux density unit expressing energy transfer per minute per square foot using imperial units.
Btu (th)/second/square inch: A unit measuring heat flux density as one British thermal unit transferred each second through one square inch.
Heat flux density: The rate of heat energy transfer through a given area.

Quick Knowledge Check

What type of quantity do both foot pound/minute/square foot and Btu (th)/second/square inch measure?

Energy

Heat flux density

Temperature

Which unit is typically used for very high, localized heat fluxes?

foot pound/minute/square foot

Btu (th)/second/square inch

Watt per meter

What is an important consideration when converting these heat flux units?

Precision due to small conversion rate

They measure exactly the same area and time units

No need to consider scientific notation

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