Here's a guide to converting between Litres per hour (L/h) and Cubic inches per second (in³/s)
Understanding the Conversion
Converting Litres per hour to Cubic inches per second involves understanding the relationship between these units of volume and time. The key is using the appropriate conversion factors
Conversion Factors
- 1 Litre (L) = 61.0237 Cubic inches (in³)
- 1 hour = 3600 seconds
Converting Litres per hour to Cubic inches per second
To convert from L/h to in³/s, use the following formula:
Step-by-step conversion of 1 L/h to in³/s:
-
Multiply 1 L/h by the conversion factor:
-
Calculate the result:
Therefore, 1 L/h is approximately equal to 0.01695 in³/s.
Converting Cubic inches per second to Litres per hour
To convert from in³/s to L/h, use the reciprocal of the conversion factor:
Step-by-step conversion of 1 in³/s to L/h:
-
Multiply 1 in³/s by the conversion factor:
-
Calculate the result:
Therefore, 1 in³/s is approximately equal to 59.0 L/h.
Real-world examples
Here are some examples where converting between L/h and in³/s might be useful:
- Automotive Engineering: Fuel injector flow rates are often specified in L/h, while engine displacement and cylinder volumes might be calculated in cubic inches. Converting between these units helps engineers match fuel delivery to engine requirements.
- HVAC Systems: Condensate drainage from air conditioning units can be measured in L/h. Plumbing specifications might use cubic inches for drain pipe sizing.
- Manufacturing Processes: Dispensing systems for adhesives, coatings, or chemicals may need precise flow control. Litres per hour can be converted to in³/s to match the requirements of smaller-scale equipment or processes.
- Medical Equipment: Infusion pumps deliver fluids at very low rates. While often measured in mL/h, converting to in³/s can be useful for very precise calculations or when interfacing with equipment from different regions.
- 3D Printing: Flow rates of resin in resin-based 3D printers can be modeled using either L/h or in³/s.
How to Convert Litres per hour to Cubic inches per second
To convert Litres per hour to Cubic inches per second, multiply the flow rate by the conversion factor between these two units. For this conversion, use .
-
Write down the given value:
Start with the flow rate in Litres per hour: -
Use the conversion factor:
Apply the factor that converts Litres per hour to Cubic inches per second: -
Set up the multiplication:
Multiply the given value by the conversion factor: -
Calculate the result:
Perform the multiplication: -
Result:
For quick conversions, keep the factor handy whenever converting from l/h to in$^3$/s. If you need to convert many values, multiplying each one by the same factor will save time.
Litres per hour to Cubic inches per second conversion table
| Litres per hour (l/h) | Cubic inches per second (in3/s) |
|---|---|
| 0 | 0 |
| 1 | 0.01695111815945 |
| 2 | 0.0339022363189 |
| 3 | 0.05085335447835 |
| 4 | 0.0678044726378 |
| 5 | 0.08475559079725 |
| 6 | 0.1017067089567 |
| 7 | 0.1186578271162 |
| 8 | 0.1356089452756 |
| 9 | 0.1525600634351 |
| 10 | 0.1695111815945 |
| 15 | 0.2542667723918 |
| 20 | 0.339022363189 |
| 25 | 0.4237779539863 |
| 30 | 0.5085335447835 |
| 40 | 0.678044726378 |
| 50 | 0.8475559079725 |
| 60 | 1.0170670895671 |
| 70 | 1.1865782711616 |
| 80 | 1.3560894527561 |
| 90 | 1.5256006343506 |
| 100 | 1.6951118159451 |
| 150 | 2.5426677239176 |
| 200 | 3.3902236318902 |
| 250 | 4.2377795398627 |
| 300 | 5.0853354478353 |
| 400 | 6.7804472637804 |
| 500 | 8.4755590797254 |
| 600 | 10.170670895671 |
| 700 | 11.865782711616 |
| 800 | 13.560894527561 |
| 900 | 15.256006343506 |
| 1000 | 16.951118159451 |
| 2000 | 33.902236318902 |
| 3000 | 50.853354478353 |
| 4000 | 67.804472637804 |
| 5000 | 84.755590797254 |
| 10000 | 169.51118159451 |
| 25000 | 423.77795398627 |
| 50000 | 847.55590797254 |
| 100000 | 1695.1118159451 |
| 250000 | 4237.7795398627 |
| 500000 | 8475.5590797254 |
| 1000000 | 16951.118159451 |
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 () in litres per hour can be calculated using the following formula:
Where:
- = Flow rate (L/h)
- = Volume (L)
- = 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 /h (cubic meters per hour)
- 1 L/h ≈ 0.264 US gallons per hour
What is Cubic Inches per Second?
Cubic inches per second (in$^3$/s) is a unit of flow rate that expresses the volume of a substance passing through a cross-sectional area per unit time. Specifically, it measures how many cubic inches of a substance flow past a point in one second.
Formation of Cubic Inches per Second
This unit is derived from the fundamental units of volume (cubic inches) and time (seconds). It's a volumetric flow rate, calculated as:
In this case:
- Volume is measured in cubic inches (in$^3$). 1 cubic inch is equal to .
- Time is measured in seconds (s).
Therefore, 1 in$^3$/s means that one cubic inch of a substance flows past a specific point in one second.
Real-World Applications and Examples
Understanding the scale of cubic inches per second is easier with real-world examples:
-
Small Engine Displacement: The displacement of small engines, like those in lawnmowers or motorcycles, can be expressed in cubic inches. While not directly a flow rate, it represents the total volume displaced by the pistons during one engine cycle, influencing performance. A larger displacement generally means more power.
-
Hydraulic Systems: In hydraulic systems, such as those used in heavy machinery or braking systems, flow rates are crucial. The rate at which hydraulic fluid flows through valves and cylinders, often measured in gallons per minute (GPM), can be converted to cubic inches per second to ensure precise control and operation. One GPM equals 0.0631 in$^3$/s
-
Fuel Injectors: Fuel injectors in internal combustion engines control the flow of fuel into the cylinders. The flow rate of fuel injectors is critical for engine performance and emissions. While often measured in other units, these rates can be converted to cubic inches per second for comparison.
-
HVAC Systems: Airflow in heating, ventilation, and air conditioning (HVAC) systems is often measured in cubic feet per minute (CFM). CFM can be converted to cubic inches per second to quantify the amount of air being circulated. One CFM equals 1.728 in$^3$/s
Interesting Facts and Related Concepts
-
Dimensional Analysis: When working with flow rates, dimensional analysis is crucial to ensure consistent units. Converting between different units of volume and time (e.g., gallons per minute to cubic inches per second) requires careful attention to conversion factors.
-
Fluid Dynamics: The study of fluid dynamics relies heavily on the concept of flow rate. Principles like the conservation of mass and Bernoulli's equation are used to analyze and predict fluid behavior in various systems. Bernoulli's principle is a statement about conservation of energy for fluids.
Frequently Asked Questions
What is the formula to convert Litres per hour to Cubic inches per second?
To convert Litres per hour to Cubic inches per second, multiply the flow value in by the verified factor . The formula is . This gives the equivalent flow rate in Cubic inches per second.
How many Cubic inches per second are in 1 Litre per hour?
There are in . This is the verified one-to-one conversion factor for the page. You can use it directly for quick conversions.
Why would I convert Litres per hour to Cubic inches per second?
This conversion is useful when comparing metric flow rates with equipment or specifications that use U.S. customary units. It often appears in automotive systems, fluid testing, pumps, and small-engine applications. Converting to helps match the unit format used in technical documents and component datasheets.
Can I use the same conversion factor for any flow rate value?
Yes, the same factor applies to any value measured in Litres per hour. Multiply the given value by to get . Because this is a linear unit conversion, the factor does not change with the size of the flow rate.
Is Cubic inches per second a unit of volumetric flow rate?
Yes, measures volumetric flow rate, which describes how much volume passes per unit of time. Litres per hour is also a volumetric flow rate unit, so the two units are directly convertible. The conversion simply changes the volume and time units to a different measurement system.
How do I convert a larger Litres per hour value to Cubic inches per second?
Use the formula . For example, if you have a flow rate in , multiply that number by the verified factor to get the result in . This method works the same for small and large values.