Gassberegninger

Gassberegninger is a Norwegian term for calculations related to gas. They are used to estimate quantities, properties and behavior of gas for design, operation and safety across energy systems, industrial processes and building services. They encompass both natural gas and manufactured gases and can apply to gas supply networks, process plants and combustion equipment.

Key elements include gas composition, state variables (pressure, temperature, volume), flow rates, and energy content (heating value, both gross and net). Calculations may also involve gas density, specific gravity, compressibility, moisture and impurities, as well as conversion factors between volume at standard conditions and on-site conditions.

Methods combine thermodynamics, fluid dynamics for compressible flow, and chemical stoichiometry for combustion. In network and process modeling, conservation of mass and energy, frictional losses, and pressure drop are computed with numerical methods and specialized software. Data inputs come from gas samples, meters and standard property tables.

Applications include sizing and operation of gas pipelines, storage and distribution systems, and heating or process plants. They support regulatory compliance, safety analyses, and economic planning, such as estimating energy costs and optimizing fuel use. Gas dispersion and leak-risk assessments may also be part of gassberegninger for safety purposes.

Quality depend on accurate gas composition data and reliable property correlations. Standards and industry guidelines govern acceptable methods, and regional differences may apply. See also: natural gas, thermodynamics, fluid dynamics, gas safety.