Steam delivery settlement: 3 GJ = 1 ton
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As indicated in the title, our factory supplies steam to power plants; it is delivered through a pipeline system with a capacity of 10 kilograms, and the normal steam pressure ranges between 0.6 and 0.8 MPa； The flow meter installed at the power plant shows the unit in gigajoules. At settlement, 3 gigajoules = 1 ton of steam. I’m not quite sure; I’d like to ask whether it’s appropriate to consider 3 gigajoules as equal to 1 ton of steam
In terms of settlement, whether 3 gigajoules is equivalent to 1 ton of steam depends on the calorific value of the steam and the specific conditions of use. The energy of steam is usually expressed in kilojoules or gigajoules. In the situation you described, if we calculate using the ratio of 3 gigajoules per ton of steam, it is necessary to determine whether this conversion ratio accurately reflects the actual thermal energy of the steam. This is usually related to the pressure, temperature, and quality of the steam. It is recommended to consult a professional energy engineer or negotiate with the power plant to ensure that both parties reach an agreement on the conversion ratio and the settlement method. It is also necessary to ensure that the readings of the flow meter are accurate, in order to avoid measurement errors. .
Simple calculation for boiler design: 1 t/h of steam ≈ 0.7 MW; 0.7 MW * 3600 = 2520 MJ = 2.52 GJ. In other words, 2.52 GJ ≈ 1 ton of steam