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Boil Off Rate Formula:
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Boil Off Rate (BOR) is a measure of the rate at which liquid evaporates or boils off from a system. It is commonly used in industrial processes, chemical engineering, and cryogenic applications to calculate the volume of liquid lost over time due to evaporation.
The calculator uses the Boil Off Rate formula:
Where:
Explanation: The formula calculates the actual volume of liquid that evaporates per unit time based on the total volume and the percentage rate of evaporation.
Details: Accurate BOR calculation is crucial for process optimization, inventory management, safety assessments, and environmental compliance in various industrial applications including LNG storage, chemical processing, and refrigeration systems.
Tips: Enter volume in liters and rate as a percentage per time unit. Both values must be positive numbers. The result will be in liters per time unit.
Q1: What industries commonly use BOR calculations?
A: BOR calculations are essential in LNG (Liquefied Natural Gas) industry, chemical processing, cryogenics, and any industry dealing with volatile liquids or cryogenic storage.
Q2: How does temperature affect boil off rate?
A: Higher temperatures generally increase boil off rates due to increased molecular activity and vapor pressure. Insulation and pressure control are used to minimize BOR.
Q3: What factors influence the evaporation rate?
A: Key factors include temperature, pressure, surface area, liquid composition, ambient conditions, and insulation quality of the storage system.
Q4: Can BOR be reduced?
A: Yes, through better insulation, pressure management, temperature control, and using more efficient storage designs and materials.
Q5: What are typical BOR values for LNG storage?
A: Modern LNG storage tanks typically have BOR values between 0.05% to 0.15% per day, depending on tank design and insulation quality.