Techno-economic assessment of a rotary kiln shell radiation waste heat recovery system
نویسندگان
چکیده
In this work, the feasibility of implementing a waste heat recovery system based on capture radiation emitted from surface rotary kiln is evaluated by coupling CFD analysis and process modelling including mass, energy, exergy balances. It found potential up to 4980 kW with an annulus absorber panel which extends 30 m length reaches average temperature 240 °C. Such could be used generate 864.25 kWe electricity through Recuperated ORC thermal efficiency ?th = 17.35% exergetic ?exg 48.62% for total saving 16.6 MJe per tonne clinker. An economic alternative highly dependent price in cement plant location. observed markets prices exceeding 0.1 $/kWh, return investment reach values 5% corresponding NPV close 0.06 MUSD.
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ژورنال
عنوان ژورنال: Thermal science and engineering progress
سال: 2021
ISSN: ['2451-9057', '2451-9049']
DOI: https://doi.org/10.1016/j.tsep.2021.100858