Conversion Factors
To perform the conversion, you need the following conversion factors:
- 1 foot = 304.8 millimeters
- 1 hour = 3600 seconds
Converting Cubic Millimeters per Second to Cubic Feet per Hour
Here's how to convert 1 cubic millimeter per second () to cubic feet per hour ():
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Convert Cubic Millimeters to Cubic Feet:
Since 1 foot = 304.8 millimeters, then 1 cubic foot () is:
Therefore,
-
Convert Seconds to Hours:
Since 1 hour = 3600 seconds, then:
-
Combine the Conversion Factors:
Multiply by the seconds to hours conversion:
So, 1 cubic millimeter per second is approximately 0.00012713 cubic feet per hour.
Converting Cubic Feet per Hour to Cubic Millimeters per Second
To convert 1 cubic foot per hour () to cubic millimeters per second ():
-
Convert Cubic Feet to Cubic Millimeters:
-
Convert Hours to Seconds:
-
Combine the Conversion Factors:
Divide by the hours to seconds conversion:
So, 1 cubic foot per hour is approximately 7865.79 cubic millimeters per second.
Real-World Examples
While "cubic millimeters per second" and "cubic feet per hour" might not be the most commonly used units in everyday conversation, the concept of volume flow rate is critical in various fields:
- Medical Applications: Infusion pumps deliver medication at precise flow rates (often in mL/hour, which can be converted to ).
- HVAC Systems: Airflow in ventilation systems is often measured in cubic feet per minute (CFM), which can be related to .
- Industrial Processes: Chemical plants and manufacturing facilities carefully control the flow rates of liquids and gases. For example, flow meters measure how much fluid passes through a pipe per unit of time (Fluid Flowmeters - Comparing Types).
- Environmental Science: Measuring river discharge or water flow in streams (often in cubic meters per second or cubic feet per second) is vital for water resource management (USGS - How Streamflow is Measured).
Interesting Facts
The study of fluid dynamics, which governs volume flow rate, has a rich history. Key figures like:
- Archimedes: His principle relates buoyancy to fluid displacement.
- Daniel Bernoulli: His principle describes the relationship between fluid speed, pressure, and height. Bernoulli's principle is fundamental to understanding fluid flow in various applications. (NASA - Bernoulli’s Principle)
How to Convert Cubic Millimeters per second to Cubic feet per hour
To convert Cubic Millimeters per second to Cubic feet per hour, use the given volume flow rate conversion factor. Multiply the value in mm3/s by the factor that changes it into ft3/h.
-
Write the conversion factor:
Use the factor for this unit change: -
Set up the conversion:
Multiply the input value, , by the conversion factor: -
Calculate the numeric result:
-
Round to the verified output:
Express the result as given: -
Result:
A quick way to check your work is to confirm the units cancel correctly, leaving only . For similar conversions, always use the exact factor first and round only at the end.
Cubic Millimeters per second to Cubic feet per hour conversion table
| Cubic Millimeters per second (mm3/s) | Cubic feet per hour (ft3/h) |
|---|---|
| 0 | 0 |
| 1 | 0.0001271328 |
| 2 | 0.0002542656 |
| 3 | 0.0003813984 |
| 4 | 0.0005085312 |
| 5 | 0.000635664 |
| 6 | 0.0007627968 |
| 7 | 0.0008899296 |
| 8 | 0.001017062 |
| 9 | 0.001144195 |
| 10 | 0.001271328 |
| 15 | 0.001906992 |
| 20 | 0.002542656 |
| 25 | 0.00317832 |
| 30 | 0.003813984 |
| 40 | 0.005085312 |
| 50 | 0.00635664 |
| 60 | 0.007627968 |
| 70 | 0.008899296 |
| 80 | 0.01017062 |
| 90 | 0.01144195 |
| 100 | 0.01271328 |
| 150 | 0.01906992 |
| 200 | 0.02542656 |
| 250 | 0.0317832 |
| 300 | 0.03813984 |
| 400 | 0.05085312 |
| 500 | 0.0635664 |
| 600 | 0.07627968 |
| 700 | 0.08899296 |
| 800 | 0.1017062 |
| 900 | 0.1144195 |
| 1000 | 0.1271328 |
| 2000 | 0.2542656 |
| 3000 | 0.3813984 |
| 4000 | 0.5085312 |
| 5000 | 0.635664 |
| 10000 | 1.271328 |
| 25000 | 3.17832 |
| 50000 | 6.35664 |
| 100000 | 12.71328 |
| 250000 | 31.7832 |
| 500000 | 63.5664 |
| 1000000 | 127.1328 |
What is Cubic Millimeters per Second?
Cubic millimeters per second () is a unit of volumetric flow rate, indicating the volume of a substance passing through a specific area each second. It's a measure of how much volume flows within a given time frame. This unit is particularly useful when dealing with very small flow rates.
Formation of Cubic Millimeters per Second
The unit is derived from the base units of volume (cubic millimeters) and time (seconds).
-
Cubic Millimeter (): A cubic millimeter is a unit of volume, representing a cube with sides that are each one millimeter in length.
-
Second (s): The second is the base unit of time in the International System of Units (SI).
Combining these, expresses the volume in cubic millimeters that flows or passes through a point in one second.
Flow Rate Formula
The flow rate () can be defined mathematically as:
Where:
- is the flow rate ().
- is the volume ().
- is the time (s).
This formula indicates that the flow rate is the volume of fluid passing through a cross-sectional area per unit time.
Applications and Examples
While might seem like a very small unit, it's applicable in several fields:
-
Medical Devices: Infusion pumps deliver medication at precisely controlled, often very slow, flow rates. For example, a pump might deliver insulin at a rate of 5 .
-
Microfluidics: In microfluidic devices, used for lab-on-a-chip applications, reagents flow at very low rates. Reactions can be studied using flow rates of 1 .
-
3D Printing: Some high resolution 3D printers using resin operate by very slowly dispensing material. The printer can be said to be pushing out material at 2 .
Relevance to Fluid Dynamics
Cubic millimeters per second relates directly to fluid dynamics, particularly in scenarios involving low Reynolds numbers, where flow is laminar and highly controlled. This is essential in applications requiring precision and minimal turbulence. You can learn more about fluid dynamics at Khan Academy's Fluid Mechanics Section.
What is Cubic feet per hour?
Cubic feet per hour (CFH) is a unit used to measure the volumetric flow rate. It represents the volume of a substance (gas or liquid) that passes through a specific area per hour, measured in cubic feet. It's a common unit in various fields, especially when dealing with gas and air flow.
Definition of Cubic Feet per Hour
Cubic feet per hour (CFH) is defined as the volume of a substance, measured in cubic feet, that flows past a point in one hour.
How CFH is Formed
CFH is derived from the basic units of volume (cubic feet) and time (hour). It directly expresses how many cubic feet of a substance move within one hour. No special law or constant is specifically tied to the definition of CFH itself. It is a direct measure of flow rate, useful in practical applications.
Calculating Volume Flow Rate
The volume flow rate (Q) in cubic feet per hour can be determined using the following formula:
Where:
- = Volume flow rate (ft³/hour)
- = Cross-sectional area of the flow (ft²)
- = Average velocity of the flow (ft/hour)
Another way to calculate it is:
Where:
- = Volume flow rate (ft³/hour)
- = Volume (ft³)
- = Time (hours)
Real-World Examples of CFH
- Natural Gas Consumption: Home appliances like furnaces, water heaters, and stoves are rated in terms of CFH to indicate their natural gas consumption. A typical furnace might consume 80-120 CFH of natural gas.
- HVAC Systems: Air conditioning and ventilation systems use CFH to measure the airflow rate in ductwork. A residential HVAC system might require airflow rates between 400 and 1600 CFH, depending on the size of the home.
- Compressed Air Systems: Pneumatic tools and equipment in factories use compressed air. The compressor output is often rated in CFH or cubic feet per minute (CFM, which can easily be converted to CFH by multiplying by 60) to indicate the volume of air it can supply.
- Industrial Processes: Many industrial processes, such as chemical manufacturing or food processing, involve controlling the flow rate of liquids or gases. CFH can be used to specify the desired flow rate of a particular fluid. For example, a chemical reactor might require a flow of 50 CFH of nitrogen gas.
- Ventilation Systems: Exhaust fans in bathrooms or kitchens are often rated in CFM (cubic feet per minute), which can be converted to CFH. A typical bathroom exhaust fan might be rated at 50-100 CFM, which equals 3000-6000 CFH.
Frequently Asked Questions
What is the formula to convert Cubic Millimeters per second to Cubic feet per hour?
To convert Cubic Millimeters per second to Cubic feet per hour, multiply the flow rate in by the factor . The formula is: . This gives the equivalent volumetric flow in Cubic feet per hour.
How many Cubic feet per hour are in 1 Cubic Millimeter per second?
There are in . This is the conversion factor used for all calculations on the page. It is useful for converting very small flow rates into a larger hourly unit.
Why is the converted value so small?
A Cubic Millimeter is an extremely small unit of volume, so even per second it represents a very low flow rate. When converted, equals only . This is normal when moving from a tiny metric volume unit to a larger imperial volume unit.
When would I use a mm3/s to ft3/h conversion in real life?
This conversion is useful in engineering, lab testing, microfluidics, and precision manufacturing where very small flow rates are measured in . If reports, equipment specs, or industry documents require imperial units, converting to helps standardize the data. It can also be helpful when comparing metric sensor output with U.S. system airflow or fluid flow documentation.
Can I convert larger values by using the same factor?
Yes, the same factor applies to any value in . For example, you convert by multiplying the given value by to get . The relationship is linear, so the formula works consistently for small and large measurements alike.
Is this conversion for volume flow rate or plain volume?
This conversion is for volumetric flow rate because both units include time: and . It does not convert static volume values such as only to . The time component must stay part of the measurement for the factor to apply.
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Complete Cubic Millimeters per second conversion table
| Unit | Result |
|---|---|
| Cubic Centimeters per second (cm3/s) | 0.001 cm3/s |
| Cubic Decimeters per second (dm3/s) | 0.000001 dm3/s |
| Cubic Decimeters per minute (dm3/min) | 0.00006 dm3/min |
| Cubic Decimeters per hour (dm3/h) | 0.0036 dm3/h |
| Cubic Decimeters per day (dm3/d) | 0.0864 dm3/d |
| Cubic Decimeters per year (dm3/a) | 31.5576 dm3/a |
| Millilitres per second (ml/s) | 0.001 ml/s |
| Centilitres per second (cl/s) | 0.0001 cl/s |
| Decilitres per second (dl/s) | 0.00001 dl/s |
| Litres per second (l/s) | 0.000001 l/s |
| Litres per minute (l/min) | 0.00006 l/min |
| Litres per hour (l/h) | 0.0036 l/h |
| Litres per day (l/d) | 0.0864 l/d |
| Litres per year (l/a) | 31.5576 l/a |
| Kilolitres per second (kl/s) | 1e-9 kl/s |
| Kilolitres per minute (kl/min) | 6e-8 kl/min |
| Kilolitres per hour (kl/h) | 0.0000036 kl/h |
| Cubic meters per second (m3/s) | 1e-9 m3/s |
| Cubic meters per minute (m3/min) | 6e-8 m3/min |
| Cubic meters per hour (m3/h) | 0.0000036 m3/h |
| Cubic meters per day (m3/d) | 0.0000864 m3/d |
| Cubic meters per year (m3/a) | 0.0315576 m3/a |
| Cubic kilometers per second (km3/s) | 1e-18 km3/s |
| Imperial Gallons per Second (imp-gal/s) | 2.199692e-7 imp-gal/s |
| Imperial Gallons per Minute (imp-gal/min) | 0.00001319815 imp-gal/min |
| Imperial Gallons per Hour (imp-gal/h) | 0.0007918893 imp-gal/h |
| Imperial Gallons per Day (imp-gal/d) | 0.01900534 imp-gal/d |
| Teaspoons per second (tsp/s) | 0.0002028841 tsp/s |
| Tablespoons per second (Tbs/s) | 0.00006762805 Tbs/s |
| Cubic inches per second (in3/s) | 0.00006102374 in3/s |
| Cubic inches per minute (in3/min) | 0.003661425 in3/min |
| Cubic inches per hour (in3/h) | 0.2196855 in3/h |
| Fluid Ounces per second (fl-oz/s) | 0.00003381402 fl-oz/s |
| Fluid Ounces per minute (fl-oz/min) | 0.002028841 fl-oz/min |
| Fluid Ounces per hour (fl-oz/h) | 0.1217305 fl-oz/h |
| Cups per second (cup/s) | 0.000004226753 cup/s |
| Pints per second (pnt/s) | 0.000002113376 pnt/s |
| Pints per minute (pnt/min) | 0.0001268026 pnt/min |
| Pints per hour (pnt/h) | 0.007608155 pnt/h |
| Quarts per second (qt/s) | 0.000001056688 qt/s |
| Gallons per second (gal/s) | 2.641721e-7 gal/s |
| Gallons per minute (gal/min) | 0.00001585032 gal/min |
| Gallons per hour (gal/h) | 0.0009510194 gal/h |
| Cubic feet per second (ft3/s) | 3.531467e-8 ft3/s |
| Cubic feet per minute (ft3/min) | 0.00000211888 ft3/min |
| Cubic feet per hour (ft3/h) | 0.0001271328 ft3/h |
| Cubic yards per second (yd3/s) | 1.307951e-9 yd3/s |
| Cubic yards per minute (yd3/min) | 7.847704e-8 yd3/min |
| Cubic yards per hour (yd3/h) | 0.000004708622 yd3/h |