Skip to main content
CalcPro

Cryogenic Tank Boil-Off Rate (BOR) & Heat Leak Calculator

Easily calculate and compute cryogenic tank boil-off rate (bor) & heat leak calculator with accurate equations, live formulas, and expert guidance.

Heat ingress through insulation and supports.

Total mass of stored cryogen.

LN2 = 199.1, LNG ~ 510, LH2 = 445.6 kJ/kg.

Calculated Result
0.65 %/day

Daily Boil-Off Rate (BOR)

Daily Boil-Off Rate (BOR)

0.65 %/day

Bor Percent Per Day

0.6509291813159217

Daily Boil Off Kg

781.1150175791059

Boil Off Kg Per Hour

32.54645906579608

0.65 — %/day

Calculation Breakdown

  1. Applied FormulaCalculates the daily percentage mass loss (Boil-Off Rate) of LNG, liquid hydrogen (LH2), or liquid nitrogen (LN2) storage tanks caused by ambient heat ingress.\text{BOR} = \frac{\dot{Q}_{\text{leak}} \cdot 86400}{M_{\text{liquid}} h_{fg}} \times 100\%

Cryogenic Boil-Off Rate Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0Daily Boil-Off Rate (BOR)

What Is the Cryogenic Tank Boil-Off Rate (BOR) & Heat Leak Calculator?

This tool computes cryogenic tank boil-off rate (bor) & heat leak calculator with high precision arithmetic.

How Does the Cryogenic Tank Boil-Off Rate (BOR) & Heat Leak Calculator Work?

Calculates the daily percentage mass loss (Boil-Off Rate) of LNG, liquid hydrogen (LH2), or liquid nitrogen (LN2) storage tanks caused by ambient heat ingress.

Cryogenic Tank Boil-Off Rate (BOR) & Heat Leak Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

BOR=Q˙leak⋅86400Mliquidhfg×100%\text{BOR} = \frac{\dot{Q}_{\text{leak}} \cdot 86400}{M_{\text{liquid}} h_{fg}} \times 100\%

Calculates the daily percentage mass loss (Boil-Off Rate) of LNG, liquid hydrogen (LH2), or liquid nitrogen (LN2) storage tanks caused by ambient heat ingress.

How to Use the Cryogenic Tank Boil-Off Rate (BOR) & Heat Leak Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Cryogenic Tank Boil-Off Rate (BOR) & Heat Leak Calculator Example

Input Values:

heatLeakWatts:1800
liquidMassTons:120
latentHeatKjPerKg:199.1
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required %/day.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

\n

Related Calculators

Explore more tools and calculators in Physics Calculators

Length Converter

Convert length and distance between metric and imperial units including meters, feet, inches, kilometers, miles, and yards with exact SI definitions.

Percentage Calculator

Calculate percentages: what % X is of Y, P% of X, % change, discount price, and percentage points.

Temperature Converter

Convert temperatures between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R) with step-by-step thermodynamic formulas.

Ohm's Law & Electrical Power Calculator

Calculate Voltage (V), Current (I), Resistance (R), and Electrical Power (P) across DC circuits.

Density, Mass & Volume Calculator

Calculate density (ρ = m/V), material mass, or physical volume for solids, liquids, and gases.

Steam Turbine Surface Condenser Cooling Water Duty Calculator

Calculates surface condenser thermal heat rejection (MWth), circulating cooling water pumping volume (m³/h), and steam condensation rate.