Experimental study of a high pressure fogging system in naturally ventilated greenhouses

被引：22
|
作者：
Li, S. [1 ]
Willits, D. H. [1 ]
Yunker, C. A. [1 ]
机构：
[1] NC State Univ, Dept Biol & Agr Engn, Raleigh, NC 27695 USA
来源：
PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON GREENHOUSE COOLING | 2006年 / 719期
关键词：
greenhouses; natural ventilation; high pressure; fogging system;
D O I：
10.17660/ActaHortic.2006.719.44
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The effects of a high pressure (68 atm) fog system on air temperature, humidity, leaf temperature and transpiration rate as functions of spray rate, canopy density, vent configuration and outside weather conditions in naturally ventilated greenhouses were studied experimentally. Two canopy density and vent configuration treatments were investigated. The evaporation efficiency was derived from data and its dependence on environmental and fog operation conditions was studied. The revised cooling efficiency was shown to be a better index to characterize fogging systems, and its dependence on spray rate and ventilation rate was determined statistically.
引用
收藏
页码：393 / +
页数：3
相关论文
共 50 条
  • [1] Comparing low-pressure and high-pressure fogging systems in naturally ventilated greenhouses
    Li, S.
    Willits, D. H.
    BIOSYSTEMS ENGINEERING, 2008, 101 (01) : 69 - 77
  • [2] Effects of Natural Ventilation Rate on Temperature and Relative Humidity in a Naturally Ventilated Greenhouse with High Pressure Fogging System
    Ishii, M.
    Okushima, L.
    Moriyama, H.
    Sase, S.
    Takakura, T.
    Kacira, M.
    INTERNATIONAL SYMPOSIUM ON NEW TECHNOLOGIES FOR ENVIRONMENT CONTROL, ENERGY-SAVING AND CROP PRODUCTION IN GREENHOUSE AND PLANT FACTORY - GREENSYS 2013, 2014, 1037 : 1127 - 1132
  • [3] Analysis of Climate Uniformity in a Naturally Ventilated Greenhouse Equipped with High Pressure Fogging System Using Computational Fluid Dynamics
    Tamimi, E.
    Kacira, M.
    IST INTERNATIONAL SYMPOSIUM ON CFD APPLICATIONS IN AGRICULTURE, 2013, 1008 : 177 - 183
  • [4] Naturally ventilated greenhouses for Mediterranean climates
    Short, TH
    Van Duyne, G
    INTERNATIONAL SYMPOSIUM ON STRATEGIES FOR MARKET ORIENTED GREENHOUSE PRODUCTION, 1996, (434): : 229 - 235
  • [5] Experimental Study of High-Pressure Fogging Cooling System in World Expo Axis
    Lin Zhi-fen
    Zhao Hui-zhong
    Huang Chen
    Ye Da-fa
    Wu Ling-hong
    Liang Tao
    2010 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC), 2010,
  • [6] ANALYSIS OF MICROCLIMATE UNIFORMITY IN A NATURALLY VENTED GREENHOUSE WITH A HIGH-PRESSURE FOGGING SYSTEM
    Tamimi, E.
    Kacira, M.
    Choi, C. Y.
    An, L.
    TRANSACTIONS OF THE ASABE, 2013, 56 (03) : 1241 - 1254
  • [7] The cooling performance of naturally ventilated greenhouses in the southeastern US
    Willits, D. H.
    Li, S.
    Yunker, C. A.
    Proceedings of the International Symposium on Greenhouse Cooling, 2006, (719): : 73 - 80
  • [8] Study on ventilation efficiencies of naturally ventilated multi-span greenhouses in Korea
    Lee, I. B.
    Hong, S. -W.
    Hwang, H. -S.
    Seo, I. -H.
    PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON GREENHOUSE COOLING, 2006, (719): : 341 - +
  • [9] Experimental and numerical assessment of carbon sequestration in horticultural crops inside Mediterranean naturally ventilated greenhouses
    Molina-Aiz, F. D.
    Honore, M.
    Fatnassi, H.
    Valera, D. L.
    Lopez-Martinez, A.
    Moreno-Teruel, M. A.
    XXXI INTERNATIONAL HORTICULTURAL CONGRESS, IHC2022: INTERNATIONAL SYMPOSIUM ON INNOVATIVE TECHNOLOGIES AND PRODUCTION STRATEGIES FOR SUSTAINABLE CONTROLLED ENVIRONMENT HORTICULTURE, 2023, 1377 : 117 - 125
  • [10] Study on the discharge coefficient of wind-driven naturally ventilated Chinese solar greenhouses
    Zhang, Jingfu
    Zhao, Shumei
    Liu, Zhiwei
    Li, Yanfeng
    Li, Youyu
    Fan, Zilong
    Ding, Tao
    BUILDING SIMULATION, 2024, 17 (09) : 1541 - 1556
12345