LoadGeni gas calculator

The following liquefied gas calculations are freely accessible. The methods are based on the latest international liquefied gas calculation standards and are tested thoroughly by the LoadGeni team. These liquefied gas calculation tools can be used to make various LNG calculations or to review the calculations of other parties. LoadGeni offers free LNG density calculations, LNG gross heating value and wobbe index calculations, LNG methane number calculations and LNG Energy unit conversions. Just fill in the data and get solutions on your LNG calculations.

Liquefied natural gas (LNG) calculations

LNG density calculation

From composition and liquid temperature
Liquefied natural gas can be kept in different conditions, what makes that the density of the liquefied natural gas can change. There are two types of influences on the density of liquefied natural gas (LNG), these are the LNG composition and the liquid temperature of the LNG. The composition is measured during the loading or bunkering operation and is shared as a composition report. The liquid temperature can change over time and is measured via temperature measurement devices.

Calculate the LNG density with your own composition and liquid temperatures below.

LNG gross heating value and wobbe index

From composition
Liquefied natural gas has different compositions depending on the production process and location on the earth where the LNG is produced. This makes that LNG has a mixture of impurities and heavier hydrocarbons mixed with the methane gas. The energy contained in the LNG changes for each composition as each product has its own energy values. The following calculation calculates the gross heating values and wobbe index from the LNG composition.

Calculate the gross heating value and wobbe index from your own composition below.

LNG methane number calculation

From composition
Liquefied natural gas (LNG) has different qualities and compositions depending on the place of production and production process. A duel fuel engine might react on this change in composition if the LNG is used as a fuel on board. A poor quality of fuel might result in knocking of the engines. This is why all types of LNG are specified with a Methane number. This Methane number, indicating from 0 to 100, is affected by the different components in the composition of the LNG. Most engines are able to run with a minimum methane number between 70 and 80.

Calculate your own methane number for your own composition below.

LNG Energy unit conversion

Convert MJ, KWH and MMBTU between each other
The amount of liquefied natural gas (LNG) is commonly given in an energy value. This energy value is depending on contracts and place in the world given in mega joule (MJ), kilo watt hour (KWH) or million British thermal unit (MMBTU). These values might be a bit confusing but can easily be recalculated to each other.

Calculate your own conversion between MJ, KWH and MMBTU below.

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