Gas Cryogenic Tank Boil-Off Rate Estimator for LN2/LNG Storage Calculator

Quick Answer

Calculate Industrial Gas Cryogenic Tank Boil-Off Rate Estimator for LN2/LNG Storage

Result Interpretation

Gas Cryogenic Tank Boil-Off Rate Estimator for LN2/LNG Storage Calculator computes Heat transfer rate in W using the defined engineering formula and the input values provided.

Worked Example

Verified calculation

Given:

Saturation temperature at tank pressure = 77.36
Solar radiative heat gain = 720
Overall heat transfer coefficient = 0.12
External surface area = 85
Ambient temperature = 298.15

Expected Result:

Heat transfer rate = 2972.058

Engineering Interpretation:

Under the given input conditions, the calculated result is: Heat transfer rate = 2972.058 W.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

heat transfer rate = overall heat transfer coefficient * external surface area * (ambient temperature - saturation temperature at tank pressure) + solar radiative heat gain

Formula family: formula_industrialgas_cryogenic_tank_boil_off_rate_estimator_for_ln2lng_storage

Variables

Symbol	Label	Role	Description
U_total	Overall heat transfer coefficient	INPUT	Overall heat transfer coefficient
A_surface	External surface area	INPUT	External surface area
T_ambient	Ambient temperature	INPUT	Ambient temperature
T_boil	Saturation temperature at tank pressure	INPUT	Saturation temperature at tank pressure
Q_solar	Solar radiative heat gain	INPUT	Solar radiative heat gain
heat_transfer_rate	Heat transfer rate	OUTPUT	Heat transfer rate

Calculation Steps

Enter the overall heat transfer coefficient in W/(m^2*K).
Enter the external surface area in m^2.
Enter the ambient temperature in K.
Enter the saturation temperature at tank pressure in K.
Enter the solar radiative heat gain in W.
Step 1: Compute heat transfer rate.
Read the heat transfer rate (W) from the results.

Engineering Summary

Calculate Industrial Gas Cryogenic Tank Boil-Off Rate Estimator for LN2/LNG Storage

Frequently Asked Questions

What does this calculator calculate?

The Gas Cryogenic Tank Boil-Off Rate Estimator for LN2/LNG Storage Calculator estimates Heat transfer rate based on the input parameters you provide

Why is overall heat transfer coefficient important in this calculation?

overall heat transfer coefficient is directly proportional to heat transfer rate. When you enter overall heat transfer coefficient in W/(m^2*K), the calculator uses it in the engineering formula to compute the output

How should I interpret the result heat transfer rate?

The calculator outputs heat transfer rate in W. For larger power values, divide by 1000 to express the result in kW, or by 745.7 for horsepower. The result is computed directly from the input values using the defined engineering formula

What units should I use for the inputs?

Enter each value in the units shown next to the input field: Overall heat transfer coefficient (W/(m^2*K)), External surface area (m^2), Ambient temperature (K), Saturation temperature at tank pressure (K), Solar radiative heat gain (W). Make sure all inputs use the specified units for consistent results

What assumptions does this calculator use?

This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment