Research On The Comprehensive Application Of New Energy(Hydrogen) In The Energy Center Of A Park In Yulin City

China has clearly proposed the goal of reaching the peak of carbon dioxide emissions by 2030 and achieving carbon neutrality by 2060.As one of the driving forces to achieve the goal of "carbon peak and carbon neutrality",the energy revolution needs the coordinated promotion of various professional fields.The planning method for building energy in low-carbon urban areas includes five steps:setting emission reduction targets,quantifying and characterizing the available resources in the park,predicting the cooling and heating load of buildings in the park,optimizing the allocation and comprehensive utilization of energy systems in the park,and comprehensively evaluating the energy system in the park.This article mainly focuses on the comprehensive application of new energy in parks based on low-carbon urban area building energy planning methods.Using a certain park in Yulin as a personalized example.Finally,explore the technical path of using hydrogen energy systems for building energy to achieve zero carbon parks.Firstly,this article uses the energy resource model method to comprehensively analyze the endowment of renewable energy resources.In this paper,energy resources analysis models are established,including solar energy,wind energy,geothermal energy,biomass energy and hydrogen energy.Through a case study of a park in Yulin,based on the analysis results,a renewable energy mode of solar energy&geothermal energy&hydrogen energy is proposed as the project building energy supply scheme.Secondly,compared to individual buildings,the types of buildings in regional building clusters are more diverse,and the energy demand caused by different functional buildings also varies.By analyzing the energy consumption scenarios of different types of buildings in the park during the day,the characteristic curves of cold,heat,and electricity consumption for different types of buildings are obtained.Use DEST energy consumption simulation software and regional energy analysis software to predict building load in the park.The results show that compared to the traditional load simulation method of the former,the peak load and annual cumulative load of the latter are reduced by more than 30% based on the analysis of different types of building energy consumption scenarios.Then,by comparing and selecting various energy schemes with the lowest investment and operating costs,the system capacity configuration is determined.Then,the above results are verified by establishing a comprehensive energy cooling,heating,electricity,and gas model and using mathematical programming methods to solve the problem.Finally,an evaluation model for energy efficiency,economic benefits,and environmental benefits of the comprehensive energy system was established.The comprehensive evaluation of the park system shows that the annual carbon reduction of the energy supply system dominated by solar photovoltaic&fuel cell&geothermal heat pump in this project is 8.087 million kg,and the static investment recovery period of the project is 12.6 years.It is expected that in the future,as the cost of hydrogen production decreases and the carbon trading market gradually matures,the static investment payback period of this project is only 3.2 years,and the system economy will continue to improve.