基于Ecotect的不同地区肉鸡舍能耗分析OA

To analyze the differences in the thermal environment and energy-use characteristics of livestock and poultry housing in different climate zones,an Ecotect model was established for a typical broiler house located in Yuncheng District,Yunfu,Guangdong Province.Outdoor meteorological conditions,indoor sensible heat gains,and envelope thermophysical properties were incorporated as inputs.Monthly energy simulations were then performed for five representative Chinese climate zones(severe cold,cold,hot summer-cold winter,hot summer-warm winter,and mild),using Harbin,Beijing,Wuhan,Guangzhou,and Kunming as representative cities.The results show that:1)There are significant differences in the annual energy consumption distribution and trend of chickens coops in different climate zones.Heating is mainly used in cold regions during winter,with Harbin having a heating period of up to seven months and a peak heating demand of 168 279.1 kWh in January,while Beijing still has cooling demand in winter;the other regions are dominated by cooling throughout the year.2)The peak energy consumption for cooling throughout the year is ranked as follows:Guangzhou,Wuhan,Beijing,Harbin,and Kunming.Among them,Kunming has relatively stable annual energy consumption with the lowest peak value,whereas Harbin and Beijing exhibit larger energy consumption fluctuations,especially with higher cooling energy consumption in July.3)In terms of total annual energy consumption,Guangzhou has the highest total energy consumption,reaching 2 701 703.2 kWh.The reductions relative to Guangzhou are 61.2％(Harbin),40.5％(Beijing),24.8％(Wuhan),and 29.2％(Kunming),respectively.4)In addition,there are differences in the timing of peak cooling energy consumption among regions:Kunming in June,Guangzhou in July,and Wuhan in August,reflecting the temporal characteristics of climate conditions on control strategy requirements.5)Model validation results show that the average relative error between simulated values and measured values is 5.65％,indicating good model reliability.In summary,regions with mild climates exhibit significant advantages in livestock and poultry production,whereas other climatic zones should take their energy consumption characteristics into account and focus on optimizing the performance of building envelopes and the operational strategies of environmental control systems.This study can provide a theoretical basis and data support for energy-saving design of livestock and poultry housing buildings,optimization of environmental control systems,and regional breeding planning in different climate zones.