CAJ | 학술논문

为了调控猪舍地面的温度及降低舍内相对湿度，该文的太阳能猪舍采用了地道通风方式。猪只一天之中70%以上的时间以躺卧休息为主，躺卧区的温度环境，尤其是地面的温度调控极为重要。该文以长春地区的猪舍为研究对象，利用附加阳光间吸收太阳辐射为猪床和猪舍提供热量。在通风道内正压通风、负压通风和无风机的不同工况下，对采用地道通风方式的太阳能猪舍进行试验研究。结果表明：在寒冷季节室外温度大约是-13℃，试验猪舍比对照猪舍的温度平均高3.0℃，相对湿度RH（relative humidity）平均降4%；在试验猪舍中，距离地道进风口2 m的地面，白天通风道正压通风比通风道无风机温度平均高0.7℃，比通风道负压通风的温度平均高1.5℃，晚上正压通风比无风机温度平均高1.1℃，比负压通风的温度平均高2.9℃；距离进风口1 m的地面，白天正压通风比无风机温度平均高3.6℃，比负压通风的温度平均高3.8℃；晚上正压通风比无风机温度平均高6.4℃，比负压通风的温度平均高6.9℃。因此，在太阳能猪舍采用地道通风方式对提高猪舍的地面温度，降低舍内相对湿度具有重要意义。
위료조공저사지면적온도급강저사내상대습도，해문적태양능저사채용료지도통풍방식。저지일천지중70%이상적시간이당와휴식위주，당와구적온도배경，우기시지면적온도조공겁위중요。해문이장춘지구적저사위연구대상，이용부가양광간흡수태양복사위저상화저사제공열량。재통풍도내정압통풍、부압통풍화무풍궤적불동공황하，대채용지도통풍방식적태양능저사진행시험연구。결과표명：재한랭계절실외온도대약시-13℃，시험저사비대조저사적온도평균고3.0℃，상대습도RH（relative humidity）평균강4%；재시험저사중，거리지도진풍구2 m적지면，백천통풍도정압통풍비통풍도무풍궤온도평균고0.7℃，비통풍도부압통풍적온도평균고1.5℃，만상정압통풍비무풍궤온도평균고1.1℃，비부압통풍적온도평균고2.9℃；거리진풍구1 m적지면，백천정압통풍비무풍궤온도평균고3.6℃，비부압통풍적온도평균고3.8℃；만상정압통풍비무풍궤온도평균고6.4℃，비부압통풍적온도평균고6.9℃。인차，재태양능저사채용지도통풍방식대제고저사적지면온도，강저사내상대습도구유중요의의。
In order to control the ground temperature and relative humidity inside pigpens, the solar piggery with tunnel ventilation was adopted in this study. Pigs usually lay down for more than 70% of the time. The environmental control, especially the temperature control at where they lie down (e.g. floor, bed) is crucial in improving the pigs’ performance. This study took the piggery as the research object, using additional solar radiation for the pig beds between the sun and piggery in Changchun. Information on major structures of both the experimental piggery and the control is listed below. The dimensions are 61 m in length, 8.1 m in width, and 3.42 m in height, and the orientation is facing south. The difference between the experimental piggery and the control is that the experimental piggery is mainly divided into two parts, the extra sunspace and itself, which is separated by a common wall. The common wall is a solid wall with a ventilation window and it is covered with an insulating layer during cold seasons. The extra sunspace is arch-shaped, constructed with lightweight steel, and also is covered with an insulating layer during cold seasons. In the experimental piggery, there are 28 units under the pig beds. Each unit 3 500 mm long and 1 970 mm wide and also has its own independent air intake, outlet, and closed airflow tunnel. The positive pressure ventilation axial airflow fan is installed at the air intake in the experimental piggery. The negative pressure ventilation draught fan is fixed at the air outlet. The floor in the control piggery is composed of a cement mortar slope layer, soil compaction, and cement mortar layer. Both experimental barn and control barn housed 275 growing-finishing pigs with mean initial live weight of 28.7±2.2 kg. The pigs were in the growing and fattening stage. With respect to the manner of the tunnel ventilation in the solar piggery, the positive and negative pressure ventilations as well as the fan working at different conditions was applied in experiments. During winter, with temperature about -13℃, the average air temperature inside the piggery was 3.0℃, which was higher than that in the control pig house, while the relative humidity was reduced by 4%, on average. On the floor 2 m away from the air inlet of the experimental house, the average daytime temperature using axial fans was higher than that with natural ventilation and using induced draft fans by 0.7℃ and 1.5℃, respectively, while the corresponding nighttime temperature was higher by 1.1℃ and 2.9℃, on average. On the floor 1 m away from the air inlet of the experimental house, the average daytime temperature using axial fans was higher than with natural ventilation and using induced draft fans by 3.6℃and 3.8℃, respectively, while the corresponding nighttime temperature was higher by 6.4℃and 6.9℃, on average. It can be concluded that using a tunnel ventilation system combined with solar energy utilization can greatly increase the floor temperature and decrease the indoor relative humidity simultaneously in the pig house.