138 posts
Re: Waste Heat Recovery system
See also there:
http://www.jetro.go.jp/mexico/topics/20071017878-topics/Kawasaki_Waste_Heat_Recovery_Cement_Plant.pdf
http://www.energymanagertraining.com/Presentations/3L_CHP/05NewDelhi/01Cogenerationofpower-NCCBM.pdf
To evaluate the power, simple thermodynamics can be used assuming a cold source at 100°C (boiling water at 1 atm). However, the actual efficiency is much lower than the Carnot efficiency, between 30% and 40% of the Carbot efficiency. This gives typically:
P = G Cg (T-To) * (1-To/T) * 35%
where G is the gas flowrate, Cg its specific heat, T the absolute temperature, To the cold source temperature.
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57 posts
Re: Waste Heat Recovery system
Waste Heat Power Generation in the cement industry started in Japan in the 70's. In the 90's, the Chinese government heavily promoted this technology. As a result, th Chinese suppliers now have a mature technology (more than 100 units intalled) and are the cheapest in the world.
You can find a lot of interesting info from Chines suppliers here:
http://www.china-power-contractor.cn/china-waste-heat-recovery-power-plant-cement.html
Best regards