무창돈사 내 무창기공형 집열기 제어 시스템 개발을 위한 기초적 연구
A Fundamental Study for Development of Unglazed Transpired Collector Control System in Windowless Pig House
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초록
본 연구에서는 UTC 시스템을 대표적인 농업시설인 돈사에 적용하기에 앞서, UTC 제어 시스템 및 프로그램 개발에 따른 돈사 내 적정 사육 환경 유지 및 난방에너지 저감을 위한 기초자료로 활용하고자, 2동의 실험돈사를 제작, UTC 제어 시스템 적용에 따른 실험돈사 내부 온도 변화 및 에너지를 비교, 분석하였다. 제어 시스템은 T1∼T4, 총 4점의 온도를 측정 후 프로그램 내 알고리즘에 의해 O1∼O5, 총 5개의 출력 신호를 ON/OFF 방식으로 각각 제어하도록 구성하였다. 온도 설정은 실험돈사 내부 온도 28. 0℃, UTC 내부 온도 34.0℃로 설정하였고, 측정된 온도와 비교를 통해 출력 신호를 제어하였다. 3일간, 제어 시스템을 가동한 돈사의 경우 최고 온도는 평균 31.8℃로 측정되었다. 같은 시간, 비교돈사의최고 온도는 평균 36.6℃로 제어 시스템을 가동한 돈사의 내부 온도가 약 4.8℃ 낮은 것으로 나타났다. 또한 제어 프로그램의 가동에 따라 UTC 플레넘 최고 온도는 평균 50.5℃까지 상승한 것으로 나타났다.
Abstract
In this study, manufactured experimental pig house (two pig house) and compared thechanges in internal temperature and energy depending on the application of UTC control systemfor their utilizing of them as basic data for maintaining proper conditions for feedingenvironment and reducing heating energy depending on the UTC control system and programdevelopment, prior to applying the UTC system into pig house, representative agriculturalfacility. The control system ranges T1∼T4 which is made to control a total of five outputsignals O1∼O5 in the way of On/Off by using the algorithms of the program after measuringtemperature scored 4 of total. Temperature setting was controlled with 28.0℃ in experimentalpig house and 34.0℃ in UTC plenum, and output signal was controlled by comparing it withthe measured temperature. During 3 days, the maximum temperature were measured at anaverage 31.8℃ when operated the control system in pig house. At the same time, the maximumtemperature were measured 36.6℃ in comparison pig house, it was low temperature at 4.8℃ inexperimental pig house than comparison pig house. Also, UTC plenum temperature was showedthat rose at an average 50.5℃ by operation of the control program.
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