Analysis of Energy Efficiency of Air Conditioning in Li-brary under Contract Energy Management Model
Taking a newly-built green library as an example,this article introduces the application of energy management contract(EMC)in the central air conditioning system of the project.Using energy consumption simulation software EnergyPlus,the influence degree of indoor temperature,library num-ber,per capita fresh air volume,natural ventilation,etc.on the annual cooling/heating consumption of air conditioning is analyzed.The results show that the indoor design temperature has the greatest im-pact on the load,followed by the number of visitors.On this basis,it proposes an operation strategy of floor-by-floor control of indoor temperature based on the maximum number of visitors and intermittent control of some floors based on personnel schedules.It also simulates and calculates the natural room temperature of reading rooms under the floor-by-floor control mode.The results show that both control strategies have certain energy saving potential,and the lower the number of visitors,the more obvious the energy saving effect.
Green LibraryCentral Air ConditioningCooling LoadHierarchical ControlIntermittent Operation