Litres per hour (l/h) to Cubic feet per minute (ft3/min) conversion

Litres per hour to Cubic feet per minute conversion table

Litres per hour (l/h)Cubic feet per minute (ft3/min)
00
10.0005885780820172
20.001177156164034
30.001765734246052
40.002354312328069
50.002942890410086
60.003531468492103
70.004120046574121
80.004708624656138
90.005297202738155
100.005885780820172
200.01177156164034
300.01765734246052
400.02354312328069
500.02942890410086
600.03531468492103
700.04120046574121
800.04708624656138
900.05297202738155
1000.05885780820172
10000.5885780820172

How to convert litres per hour to cubic feet per minute?

Let's explore how to convert between Litres per hour (L/h) and Cubic feet per minute (CFM). Understanding these conversions is useful in various fields such as engineering, HVAC, and fluid dynamics.

Understanding the Conversion

Converting between L/h and CFM involves understanding the relationship between metric and imperial units of volume and time. There is a fixed conversion factor because both units measure volume flow rate.

Conversion Factors

The key conversion factors are:

  • 1 Liter (L) = 0.0353147 cubic feet (ft3ft^3)
  • 1 hour = 60 minutes

Converting Litres per Hour (L/h) to Cubic Feet per Minute (CFM)

To convert from L/h to CFM, use the following formula:

CFM=Litres per hour×0.035314760CFM = \frac{Litres \text{ per hour} \times 0.0353147}{60}

Step-by-Step Conversion:

  1. Start with L/h value: You have 1 L/h.

  2. Convert Litres to Cubic Feet: Multiply by the conversion factor 0.0353147.

    1L/h×0.0353147ft3L=0.0353147ft3/hour1 \, \text{L/h} \times 0.0353147 \, \frac{ft^3}{L} = 0.0353147 \, ft^3/\text{hour}

  3. Convert Hours to Minutes: Divide by 60 to convert hours to minutes.

    0.0353147ft3/hour60minutes/hour=0.000588578CFM\frac{0.0353147 \, ft^3/\text{hour}}{60 \, \text{minutes/hour}} = 0.000588578 \, \text{CFM}

Therefore, 1 L/h is approximately equal to 0.000588578 CFM.

Converting Cubic Feet per Minute (CFM) to Litres per Hour (L/h)

To convert from CFM to L/h, use the following formula:

L/h=CFM×600.0353147L/h = \frac{CFM \times 60}{0.0353147}

Step-by-Step Conversion:

  1. Start with CFM value: You have 1 CFM.

  2. Convert Minutes to Hours: Multiply by 60 to convert minutes to hours.

    1CFM×60minutes/hour=60ft3/hour1 \, \text{CFM} \times 60 \, \text{minutes/hour} = 60 \, ft^3/\text{hour}

  3. Convert Cubic Feet to Litres: Divide by the conversion factor 0.0353147.

    60ft3/hour0.0353147ft3L=1699.01L/h\frac{60 \, ft^3/\text{hour}}{0.0353147 \, \frac{ft^3}{L}} = 1699.01 \, \text{L/h}

Therefore, 1 CFM is approximately equal to 1699.01 L/h.

Real-World Examples

Here are a few examples where you might need to convert between L/h and CFM:

  • HVAC Systems: Determining the airflow needed for ventilation or air conditioning. For example, calculating the CFM required for a room based on its volume and the desired air changes per hour (which might be given in L/h initially).
  • Industrial Processes: Calculating the flow rate of liquids or gases in manufacturing or chemical plants. Knowing the flow rate of a coolant in L/h and needing to convert it to CFM for compatibility with equipment specifications.
  • Automotive Engineering: Measuring fuel consumption rates. Fuel consumption is often measured in litres per hour at idle, while airflow into the engine might be measured in CFM.
  • Environmental Monitoring: Measuring air or water flow rates in environmental studies, such as measuring the flow of a river (which may involve converting between different flow rate units for analysis).
  • Aquarium and Pond Maintenance: Water pump flow rates may be given in either L/h or CFM, and conversions are necessary to select the correct pump size.

Notable Figures and Laws

While there isn't a specific law or famous person directly associated with L/h to CFM conversions, the principles behind fluid dynamics are foundational. Figures like:

  • Daniel Bernoulli: Known for Bernoulli's principle, which relates fluid speed to pressure.
  • Osborne Reynolds: Known for the Reynolds number, which helps predict flow patterns in fluids.

Understanding fluid dynamics helps to conceptualize and apply flow rate conversions accurately in relevant fields.

See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a list of all the Cubic feet per minute to other unit conversions.

What is litres per hour?

Litres per hour (L/h) is a common unit for measuring the rate at which a volume of liquid flows. Understanding its meaning and applications can be helpful in various fields.

Understanding Litres per Hour (L/h)

Litres per hour (L/h) is a unit of volume flow rate. It indicates the volume of liquid, measured in litres, that passes a specific point in one hour. In simpler terms, it tells you how many litres of a substance are moving per hour.

Formation of the Unit

The unit is formed by combining two fundamental units:

  • Litre (L): A metric unit of volume, defined as the volume of one kilogram of pure water at its maximum density (approximately 4°C).
  • Hour (h): A unit of time, equal to 60 minutes or 3600 seconds.

Therefore, 1 L/h means that one litre of a substance flows past a point in one hour.

Formula and Calculation

The flow rate (QQ) in litres per hour can be calculated using the following formula:

Q=VtQ = \frac{V}{t}

Where:

  • QQ = Flow rate (L/h)
  • VV = Volume (L)
  • tt = Time (h)

Real-World Examples

Litres per hour are used in many practical applications.

  • Water Usage: A household might use 500 L/h when all taps, showers, and appliances are running at once.
  • Medical Infusion: An IV drip might deliver medication at a rate of 0.1 L/h.
  • Fuel Consumption: A car might consume 5 L/h of fuel while idling.
  • Industrial Processes: A chemical plant might pump reactants at a rate of 2000 L/h into a reactor.
  • HVAC System: Condensate from a home air conditioner might drain at a rate of 1 L/h on a humid day.

Interesting Facts and Connections

While there isn't a specific "law" directly associated with litres per hour, the concept of flow rate is central to fluid dynamics, which is governed by laws like the Navier-Stokes equations. These equations describe the motion of viscous fluids and are fundamental in engineering and physics.

Conversion

Often, you might need to convert between L/h and other flow rate units. Here are some common conversions:

  • 1 L/h = 0.001 m3m^3/h (cubic meters per hour)
  • 1 L/h ≈ 0.264 US gallons per hour

What is cubic feet per minute?

What is Cubic feet per minute?

Cubic feet per minute (CFM) is a unit of measurement that expresses the volume of a substance (usually air or gas) flowing per minute. It's commonly used to measure airflow in ventilation, HVAC systems, and other industrial processes. Understanding CFM helps in selecting appropriate equipment and ensuring efficient system performance.

Understanding Cubic Feet per Minute (CFM)

Definition

CFM defines the amount of cubic feet that passes through a specific area in one minute. It is a standard unit for measuring volume flow rate in the United States.

How it is formed?

CFM is derived from the units of volume (cubic feet, ft3ft^3) and time (minutes, min). Therefore, 1 CFM means one cubic foot of a substance passes a specific point every minute.

Formula

The relationship between volume, time, and CFM can be expressed as:

CFM=Volume(ft3)Time(minutes)CFM = \frac{Volume (ft^3)}{Time (minutes)}

Real-World Applications and Examples

HVAC Systems

  • Home Ventilation: A typical bathroom exhaust fan might have a CFM rating of 50-100, depending on the bathroom's size. This ensures adequate removal of moisture and odors.
  • Air Conditioners: The CFM rating of a central air conditioning system is crucial for proper cooling. For instance, a 2.5-ton AC unit might require around 1000 CFM to effectively cool a space.
  • Furnaces: Furnaces use CFM to ensure proper airflow across the heat exchanger, maintaining efficiency and preventing overheating.

Industrial Applications

  • Pneumatic Tools: Air compressors powering pneumatic tools (like nail guns or impact wrenches) are often rated by CFM delivered at a certain pressure (PSI). For example, a heavy-duty impact wrench might require 5 CFM at 90 PSI.
  • Spray Painting: Air compressors used for spray painting need a specific CFM to atomize the paint properly. An automotive paint job may require a compressor delivering 10-15 CFM at 40 PSI.
  • Dust Collection: Dust collection systems in woodworking shops use CFM to extract sawdust and debris from the air, maintaining a clean and safe working environment. A small shop might use a system with 600-800 CFM.

Other Examples

  • Computer Cooling: Fans used to cool computer components (CPUs, GPUs) are rated in CFM to indicate how much air they can move across the heat sink.
  • Leaf Blowers: Leaf blowers are often specified by CFM, indicating their ability to move leaves and debris.

Interesting Facts

Standard Conditions

When comparing CFM values, it's important to note the conditions under which they were measured. Standard conditions for airflow are typically at a specific temperature and pressure (e.g., Standard Temperature and Pressure, or STP).

Conversion to Other Units

CFM can be converted to other volume flow rate units, such as cubic meters per hour (m3/hm^3/h) or liters per second (L/s), using appropriate conversion factors.

  • 1 CFM ≈ 1.699 m3/hm^3/h
  • 1 CFM ≈ 0.472 L/s

Relationship to Velocity

CFM is related to air velocity and the cross-sectional area of the flow. The formula linking these is:

CFM=Area(ft2)×Velocity(ft/min)CFM = Area (ft^2) \times Velocity (ft/min)

This relationship is crucial in designing ductwork and ventilation systems to ensure proper airflow. You can find more about this relationship on engineering websites such as How to measure air volume flow or air velocity?

Complete Litres per hour conversion table

Enter # of Litres per hour
Convert 1 l/h to other unitsResult
Litres per hour to Cubic Millimeters per second (l/h to mm3/s)277.77777777778
Litres per hour to Cubic Centimeters per second (l/h to cm3/s)0.2777777777778
Litres per hour to Cubic Decimeters per second (l/h to dm3/s)0.0002777777777778
Litres per hour to Cubic Decimeters per minute (l/h to dm3/min)0.01666666666667
Litres per hour to Cubic Decimeters per hour (l/h to dm3/h)1
Litres per hour to Cubic Decimeters per day (l/h to dm3/d)24
Litres per hour to Cubic Decimeters per year (l/h to dm3/a)8766
Litres per hour to Millilitres per second (l/h to ml/s)0.2777777777778
Litres per hour to Centilitres per second (l/h to cl/s)0.02777777777778
Litres per hour to Decilitres per second (l/h to dl/s)0.002777777777778
Litres per hour to Litres per second (l/h to l/s)0.0002777777777778
Litres per hour to Litres per minute (l/h to l/min)0.01666666666667
Litres per hour to Litres per day (l/h to l/d)24
Litres per hour to Litres per year (l/h to l/a)8766
Litres per hour to Kilolitres per second (l/h to kl/s)2.7777777777778e-7
Litres per hour to Kilolitres per minute (l/h to kl/min)0.00001666666666667
Litres per hour to Kilolitres per hour (l/h to kl/h)0.001
Litres per hour to Cubic meters per second (l/h to m3/s)2.7777777777778e-7
Litres per hour to Cubic meters per minute (l/h to m3/min)0.00001666666666667
Litres per hour to Cubic meters per hour (l/h to m3/h)0.001
Litres per hour to Cubic meters per day (l/h to m3/d)0.024
Litres per hour to Cubic meters per year (l/h to m3/a)8.766
Litres per hour to Cubic kilometers per second (l/h to km3/s)2.7777777777778e-16
Litres per hour to Teaspoons per second (l/h to tsp/s)0.0563567045
Litres per hour to Tablespoons per second (l/h to Tbs/s)0.01878556816667
Litres per hour to Cubic inches per second (l/h to in3/s)0.01695111815945
Litres per hour to Cubic inches per minute (l/h to in3/min)1.0170670895671
Litres per hour to Cubic inches per hour (l/h to in3/h)61.024025374023
Litres per hour to Fluid Ounces per second (l/h to fl-oz/s)0.009392784083333
Litres per hour to Fluid Ounces per minute (l/h to fl-oz/min)0.563567045
Litres per hour to Fluid Ounces per hour (l/h to fl-oz/h)33.8140227
Litres per hour to Cups per second (l/h to cup/s)0.001174098010417
Litres per hour to Pints per second (l/h to pnt/s)0.0005870490052083
Litres per hour to Pints per minute (l/h to pnt/min)0.0352229403125
Litres per hour to Pints per hour (l/h to pnt/h)2.11337641875
Litres per hour to Quarts per second (l/h to qt/s)0.0002935245026042
Litres per hour to Gallons per second (l/h to gal/s)0.00007338112565104
Litres per hour to Gallons per minute (l/h to gal/min)0.004402867539063
Litres per hour to Gallons per hour (l/h to gal/h)0.2641720523438
Litres per hour to Cubic feet per second (l/h to ft3/s)0.000009809634700287
Litres per hour to Cubic feet per minute (l/h to ft3/min)0.0005885780820172
Litres per hour to Cubic feet per hour (l/h to ft3/h)0.03531468492103
Litres per hour to Cubic yards per second (l/h to yd3/s)3.6331926968299e-7
Litres per hour to Cubic yards per minute (l/h to yd3/min)0.00002179915618098
Litres per hour to Cubic yards per hour (l/h to yd3/h)0.001307949370859

Volume flow rate conversions