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Research on a new optimization method for airflow organization in breeding air conditioning with perforated ceiling ventilation

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  • Hou, Falin
  • Shen, Chenhui
  • Cheng, Qing

Abstract

Modern agricultural production puts forward higher requirement for environmental control. Uniform air distribution can form the stable temperature, humidity and velocity of indoor air, which is particularly important for agricultural production. In this paper, theoretical research is conducted on a nursery piggery and the velocity uniformity is defined to evaluate the performance of perforated ceiling ventilation. A new optimization method for airflow organization is developed, which improves the airflow organization based on the suitable air supply angle. It shows that the velocity uniformity is increased and then decreased with the increase of air supply angle, and the best air supply angle is around 35°. The optimal air supply angle changes with the plenum height, and there is a threshold for the plenum height. The best velocity uniformity can be achieved when the height of plenum is 0.5 m. Besides, the air supply velocity has almost no effect on the velocity uniformity. The optimization model for airflow organization based on the air supply angle is established and its accuracy is verified. Finally, a specific case is selected to compare and analyze the air distribution under different air supply methods, which verifies the feasibility of the optimization method proposed in this paper.

Suggested Citation

  • Hou, Falin & Shen, Chenhui & Cheng, Qing, 2022. "Research on a new optimization method for airflow organization in breeding air conditioning with perforated ceiling ventilation," Energy, Elsevier, vol. 254(PB).
    • Handle: RePEc:eee:energy:v:254:y:2022:i:pb:s0360544222011823
    DOI: 10.1016/j.energy.2022.124279
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    References listed on IDEAS

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    1. Pasut, Wilmer & Bauman, Fred & De Carli, Michele, 2014. "The use of ducts to improve the control of supply air temperature rise in UFAD systems: CFD and lab study," Applied Energy, Elsevier, vol. 134(C), pages 490-498.
    2. Chandrakanta Mahanty & Raghvendra Kumar & Brojo Kishore Mishra, 2021. "Analyses the effects of COVID-19 outbreak on human sexual behaviour using ordinary least-squares based multivariate logistic regression," Quality & Quantity: International Journal of Methodology, Springer, vol. 55(4), pages 1239-1259, August.
    3. Tradat, Mohammad I. & Manaserh, Yaman “Mohammad Ali” & Sammakia, Bahgat G. & Hoang, Cong Hiep & Alissa, Husam A., 2021. "An experimental and numerical investigation of novel solution for energy management enhancement in data centers using underfloor plenum porous obstructions," Applied Energy, Elsevier, vol. 289(C).
    4. Alessandro Nocente & Tufan Arslan & Steinar Grynning & Francesco Goia, 2020. "CFD Study of Diffuse Ceiling Ventilation through Perforated Ceiling Panels," Energies, MDPI, vol. 13(8), pages 1-14, April.
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    1. Ma, Hongqiang & Xie, Yue & Min, Kai & Chen, Yufei & Liu, Yu & Wang, Shengxun & Ding, Ruixiang & Cai, Weihua, 2023. "Investigation on the control strategy of new spray cooling system based on PV/T and heat recovery in sow houses: As a case study in Nanchang, China," Renewable Energy, Elsevier, vol. 219(P1).

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