CAPACITY OPTIMIZATION OF COMBINED POWER-HEATING-OXYGEN SYSTEM FOR PLATEAU HOTEL BUILDING
Taking a hotel in Qilian County,Qinghai Province as an example,this study established an optimal capacity configuration model of the combined power-heating-oxygen system for plateau hotel building with the aim of minimum total annual cost.The genetic algorithm was used to solve the optimization model to determine the optimal capacity configuration of the system.Results show that:Compared with the conventional combined power-heating system,the combined power-heating-oxygen system reduces the power supply ratio of the power grid from 76.9%to 29.8%.Compared with the conventional combined power-heating system,the combined power-heating-oxygen system saw reductions of 1.2%in its total annual cost,in which the annual investment cost of the system increases by 4.1%and the annual operation cost of the system decreases by 5.3%.The total annual cost of the combined power-heating-oxygen system is affected significantly by the oxygen purchase price;When the oxygen purchase price is higher than 8 yuan/(Nm3),the combined power-heating-oxygen system has more economica advantages than the conventional combined power-heating system.
solar energyhydrogen storageoptimal designcombined power-heating-oxygen systemplateau hotel
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