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The three-stage sulfur condenser produces a total of 2388kg/h of 0.12MPa steam. After condensation, the energy of deoxygenated water is 920MJ, h. The power consumption of the air cooler is 213MJ/h. That is, after using steam condensate water instead of deoxygenated water, the annual energy saving is 593.7×104MJ. Equivalent to a ton of sulfur, the energy consumption is reduced by 66MJ. How are the energy equivalent to deoxygenated water, electricity consumption, and annual energy savings calculated?
Is this a problem you have in actual production? Why do I look a little confused. Don’t all types of consumption have energy consumption coefficients? For a set of devices or a system, what is supplied to the system is a positive value, and what is supplied to the system is a negative value.
This is a formal question. It’s hard to calculate.
The amount of deoxygenated water saved is the amount of steam condensate recovered, and the electricity consumption is the power consumption of the air cooler. The annual saving is the amount of steam condensate recovered multiplied by the unit's cost of desalted and deoxygenated water minus the electricity consumption minus equipment investment and maintenance fees.
The equivalent deoxygenated water energy is 920MJ/h minus the air cooler power consumption of 213MJ/h. That is, after using steam condensate water instead of deoxygenated water, the energy consumption saved per hour is multiplied by the annual production time, which is 8,000 hours, to get the annual energy saved.