Heat Recovery and Energy Saving Analysis of Screw Air Compressors
Abstract：Taking a 250 kW screw air compressor as the research object, this study carried out heat recovery modification. By adding a heat recovery system, the waste heat from the air compressor was used to heat softened water to 50°C, which was then used for water supplementation in a gas boiler, improving the temperature of the feed water and the thermal efficiency of the boiler operation, thus reducing natural gas consumption. The results show that after the renovation, an annual saving of 52.67 tons of standard coal can be achieved, with a reduction of 82.25 tons of carbon dioxide emissions, and an annual economic benefit of 200,100 yuan.
Keywords：Screw air compressorWaste heat recoveryEnergy saving and carbon reductionEconomic benefitsDual carbon goals
Publication Date：2025-12-25
Online Publishing Date：2026-01-26(First online date of this platform, not the publication date of the document)
Pages：3( 123-125 )