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2025 Vol.27, Issue 1 Preview Page

Research article

CFD-based optimization of sensor placement for accurate ventilation rate assessment in naturally ventilated cattle barns

자연환기식 우사의 환기량 산정을 위한 전산유체역학 시뮬레이션 기반 풍속 측정 위치 최적화

Ji-yeon Park12
,
Chae-rin Lee12
,
Se-yeon Lee12
,
Kehinde Favour Daniel12
,
Jinseon Park3
,
Se-woon Hong24*
,
Jun-Yeob Lee5
,
Junsu Park5
박 지연12
,
이 채린12
,
이 세연12
,
Daniel Kehinde Favour12
,
박 진선3
,
홍 세운24*
,
이 준엽5
,
박 준수5
1Graduate Student, Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
2Education and Research Unit for Climate-Smart Reclaimed-Tideland Agriculture (BK21 four), Chonnam National University, Gwangju 61186, Republic of Korea
3Research Professor, AgriBio Institute of Climate Change Management, Chonnam National University, Gwangju 61186, Republic of Korea
4Professor, Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
5Smart Livestock Environment Division, Department of Animal Biotechnology and Environment, National Institute of Animal Science, Wanju 55365, Republic of Korea
1전남대학교 지역․바이오시스템공학과 대학원생
2BK21 기후지능형간척지농업교육연구팀
3전남대학교 기후변화대응농생명연구소 연구교수
4전남대학교 지역․바이오시스템공학과 교수
5국립축산과학원 스마트축산환경과
*Corresponding Author
30 April 2025. pp. 17-28
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Abstract

This study aimed to improve the accuracy of ventilation rate estimation in a naturally ventilated (NV) cattle barn using computational fluid dynamics (CFD) simulations. A CFD model was developed based on an actual NV barn and validated using field measurements. The validated CFD model was used to evaluate the airflow characteristics in standard cattle barns with 90, 130, and 180 cows, as proposed by the Ministry of Agriculture, Food and Rural Affairs. The effects of anemometer location and number on ventilation rate estimation accuracy were analyzed. Simulation results showed that estimation errors decreased with an increasing number of sensors. In single-row array of sensors, eight sensors provided the highest accuracy, whereas four sensors were sufficient in double-row layouts. For entry/exit openings, installing only two sensors maintained estimation errors below 1%. These findings suggest that CFD-based sensor placement strategies can contribute to reliable ventilation rate assessment, providing a foundation for emission factor recalculation and enhanced environmental control in livestock facilities.

Keywords
Natural ventilation
Cattle barn
CFD simulation
Ventilation rate
Sensor Optimization
Emission factor
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Information
  • Publisher :The Korean Society of Animal Environmental Science & Technology
  • Publisher(Ko) :(사)한국축산환경학회
  • Journal Title :Journal of Animal Environmental Science
  • Journal Title(Ko) :축산시설환경학회지
  • Volume : 27
  • No :1
  • Pages :17-28
  • Received Date : 2025-04-18
  • Revised Date : 2025-04-25
  • Accepted Date : 2025-04-28
  • DOI :https://doi.org/10.11109/JAES.2025.27.1.017
Journal Informaiton Journal of Animal Environmental Science Journal of Animal Environmental Science
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