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王美芝,薛晓柳,刘继军,易路,陈昭辉,吴中红.不同节能改造方式猪舍的供暖能耗和经济性比较[J].农业工程学报,2018,34(13):218-224.DOI:10.11975/j.issn.1002-6819.2018.13.026
不同节能改造方式猪舍的供暖能耗和经济性比较
投稿时间:2018-04-13  修订日期:2018-06-01
中文关键词:  保温  设施  通风  围护结构  猪舍  节能改造  供暖能耗  成本
基金项目:生猪产业技术体系北京市创新团队项目,项目编号:BAIC02-2018;重点专项:畜禽重大疫病防控与高效安全养殖综合技术研发-畜禽养殖智能装备与信息化技术研发,项目编号:2018YFD0500700
作者单位
王美芝 1. 中国农业大学动物科技学院北京 100193
2. 动物营养学国家重点实验室北京 100193
 
薛晓柳 1. 中国农业大学动物科技学院北京 100193
 
刘继军 1. 中国农业大学动物科技学院北京 100193
2. 动物营养学国家重点实验室北京 100193
 
易路 1. 中国农业大学动物科技学院北京 100193
 
陈昭辉 1. 中国农业大学动物科技学院北京 100193
2. 动物营养学国家重点实验室北京 100193
 
吴中红 1. 中国农业大学动物科技学院北京 100193
2. 动物营养学国家重点实验室北京 100193
 
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中文摘要:为降低猪舍冬季供暖能耗,以12头母猪的分娩猪舍常见围护结构为基础,理论与试验相结合分析了不同节能改造方式的供暖能耗和经济指标。结果表明:未保温猪舍、外墙保温猪舍、外墙天棚保温门窗进风猪舍和外墙天棚保温天棚进风猪舍1个供暖季总能耗分别为118.2、45.2、35.3和0.2 kW·h/m2。4种猪舍不需要供暖的时长占供暖期总时长的比例分别为10%、28%、33%和96%。外墙保温猪舍与未保温猪舍相比、外墙天棚保温门窗进风猪舍与外墙保温猪舍相比、外墙天棚保温天棚进风猪舍与外墙天棚保温门窗进风猪舍相比、外墙天棚保温天棚进风猪舍与外墙保温猪舍相比,节约的单位能耗的改造成本分别为1.2、40.4、0.2和9.0 Yuan/(kW·h)。以节约单位能耗所需投资最小目标选择猪舍节能改造方式,以墙体保温节能改造最好;以猪舍总能耗最低为目标,则猪舍墙体和天棚均需节能改造并进行天棚预热新风通风。
Wang Meizhi,Xue Xiaoliu,Liu Jijun,Yi Lu,Chen Zhaohui,Wu Zhonghong.Comparison of heating energy consumption and economy of pig house with different energy saving renovation measures[J].Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE),2018,34(13):218-224.DOI:10.11975/j.issn.1002-6819.2018.13.026
Comparison of heating energy consumption and economy of pig house with different energy saving renovation measures
Author NameAffiliation
Wang Meizhi 1. College of Animal Science, China Agricultural University, Beijing 100193, China
2. State Key Laboratory of Animal Nutrition, Beijing 100193, China
 
Xue Xiaoliu 1. College of Animal Science, China Agricultural University, Beijing 100193, China
 
Liu Jijun 1. College of Animal Science, China Agricultural University, Beijing 100193, China
2. State Key Laboratory of Animal Nutrition, Beijing 100193, China
 
Yi Lu 1. College of Animal Science, China Agricultural University, Beijing 100193, China
 
Chen Zhaohui 1. College of Animal Science, China Agricultural University, Beijing 100193, China
2. State Key Laboratory of Animal Nutrition, Beijing 100193, China
 
Wu Zhonghong 1. College of Animal Science, China Agricultural University, Beijing 100193, China
2. State Key Laboratory of Animal Nutrition, Beijing 100193, China
 
Key words:insulation  facilities  ventilation  envelope  farrowing house  energy efficiency renovation  energy consumption  cost
Abstract:It is forbidden to use coal to heat pig house in "2+26" cities in Northern China at present, and the cost of alternative energy sources like electricity and gas used to heat pig house will increase. The aim of this paper is to evaluate and analyze the effect of different pig house envelope insulation renovation measures and ventilation modes in winter on energy consumption of space heating and cost. This paper covers theoretical and experimental methods. A natural ventilated and natural lighted farrowing house with 12 farrowing sows was selected to be an experimental pig house and the wall was made of bricks with the thickness of 240 mm and had no ceiling. In this experiment, the weight of sow was 238 kg, ventilation rate of the farrowing house was set to be 600 m3/h, and indoor temperature was set to be 18 ℃. The CO2 concentration indoors was less than 2 414 ppm when the ventilation rate was 600 m3/h, and it was thought the ventilation rate was enough in heating periods to save ventilation energy. The renovation measures were divided into 4 types or stages: uninsulated (the original farrowing house), wall insulated (Step 1, renovated in 2015), wall and ceiling insulated with ventilation inlet on the windows and doors (Step 2, renovated in 2017), wall and ceiling insulated with ventilation inlet on the ceiling (Step 3, renovated in 2017). Temperatures at the inlet on the ceiling, outdoors and indoors were measured and analyzed. Energy consumption of space heating and cost of different renovation types were calculated and compared. The results indicated that temperature at the inlet on the ceiling was 13.2 ℃ when the temperature outdoors was 0.1 ℃ and the temperature indoors was 18 ℃. Which part of the envelopes of the farrowing house used to be renovated would be more effective in energy saving depended on the values of heat transfer coefficients, air temperature at the inlet of ventilation, ventilation rate, and so on. Energy consumption in environmental control of farrowing house was divided into spacing heating and ventilation and localized heating in Beijing, China. Energy consumption of space heating in winter for uninsulated, wall insulated, wall and ceiling insulated with ventilation inlet on the windows and doors and wall and ceiling insulated with ventilation inlet on the ceiling was 118.2, 45.2, 35.3 and 0.2 kW·h/m2, respectively. Renovation cost of unit energy saving for Step 1, Step 2 and Step 3 was 1.2, 40.4 and 9.0 Yuan/(kW·h), respectively. Payback period of Step 1, Step 2 and Step 3 was 2.0, 67.3 and 15.0 a, respectively. For space heating of uninsulated, wall insulated, wall and ceiling insulated with ventilation inlet on the windows and doors, wall and ceiling insulated with ventilation inlet on the ceiling of the farrowing house, the time with no need for heating in winter was 284, 811, 952 and 2 785 h, respectively, the percentage of the time with no need for heating in 2 904 h was 10%, 28%, 33% and 96%, respectively. Ventilation and localized heating of farrowing house was calculated to be 43.7 kW·h/m2 in the whole year for the 4 types of energy efficiency renovation farrowing houses. Wall insulation was the best renovation measure on basis of least renovation cost of saving unit energy consumption, whereas wall and ceiling insulated with ventilation inlet on the ceiling was the best renovation measure on basis of least total energy consumption.
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