Taking a star rated hotel in Fujian Province as an example,a renovation so-lution for its air-conditioning system is proposed.Through comparison of operation data before and after the renovation,it is found that the air-conditioning system after the reno-vation in the cooling season can save 146700 kW·h of electricity,reduce 85.23 tons of carbon dioxide emissions,and its payback period is about 9 years.
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