074 Effect of pad cooling on summer barn environment and finishing pig temperature

Wiegert, J. G.; Knauer, Mark; Shah, Sanjay B.

doi:10.2527/asasmw.2017.074

Cited by 3 publications

(3 citation statements)

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“…In the other study [ 71 ] the authors evaluated the performance of growing-finishing pigs keeping in buildings with natural ventilation, tunnel ventilation alone and tunnel ventilation combined with evaporative pads (two, cool, cell-pads of a large surface and extractor fans in the opposite wall). All the facilities were curtain-sided buildings.…”

Section: Cooling Technologiesmentioning

confidence: 99%

Use of Different Cooling Methods in Pig Facilities to Alleviate the Effects of Heat Stress—A Review

Godyń

Herbut

Angrecka

et al. 2020

Animals

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An increase in the frequency of hot periods, which has been observed over the past decades, determines the novel approach to livestock facilities improvement. The effects of heat stress are revealed in disorders in physiological processes, impaired immunity, changes in behaviour and decreases in animal production, thus implementation of cooling technologies is a key factor for alleviating these negative consequences. In pig facilities, various cooling methods have been implemented. Air temperature may be decreased by using adiabatic cooling technology such as a high-pressure fogging system or evaporative pads. In modern-type buildings large-surface evaporative pads may support a tunnel ventilation system. Currently a lot of attention has also been paid to developing energy- and water-saving cooling methods, using for example an earth-air or earth-to-water heat exchanger. The pigs’ skin surface may be cooled by using sprinkling nozzles, high-velocity air stream or conductive cooling pads. The effectiveness of these technologies is discussed in this article, taking into consideration the indicators of animal welfare such as respiratory rate, skin surface and body core temperature, performance parameters and behavioural changes.

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Section: Cooling Technologiesmentioning

confidence: 99%

Use of Different Cooling Methods in Pig Facilities to Alleviate the Effects of Heat Stress—A Review

Godyń

Herbut

Angrecka

et al. 2020

Animals

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“…The tested pregnant sow piggery is arranged in the second production line of the breeding farm, which is located at an altitude of 2040 m. The overall size of the piggery is 164.5 m in length, 30.1 m in width, and 4 m in height. During the testing period, the cohort consisted of 2054 pregnant sows (556 in units 1-7, 560 in units 8-14, 394 in units 15-21, and 544 in units [22][23][24][25][26][27][28] from the first trimester to day 112 of the pregnancy. As shown in Figure 1a, there are a total of 28 units in the piggery, and each unit has two columns of limit bars, totaling 80 units.…”

Section: Test Piggerymentioning

confidence: 99%

“…In tropical and subtropical areas, a wet curtain fan is the first choice for ventilation and cooling in piggeries, achieving satisfactory results [17][18][19][20][21]. Scholars at home and abroad have made important contributions to optimizing the ventilation process in piggeries in terms of longitudinal ventilation, air intake position, and velocity [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Airflow Distribution in a Pregnant Sow Piggery with Centralized Ventilation

Wei

et al. 2022

Applied Sciences

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(1) Background: The thermal environment in a pregnant sow piggery is affected by physical parameters such as air temperature, relative humidity, and airflow velocity. However, it is challenging to conduct experimental studies due to the high cost. (2) Methods: Computational fluid dynamics (CFD) was used to study the distribution characteristics of airflow in a pregnant sow piggery with centralized ventilation. (3) Results: The results show that the maximum difference between the simulated and experimental temperature was less than 1.54 °C, and the simulated and tested relative humidity difference was less than 10% RH. Incorporation of a middle air outlet is beneficial for increasing the uniformity of temperature distribution, as studied by comparing the temperature and humidity uniformity coefficient of the two air outlet locations, but the uniformity of humidity distribution will be reduced. With an increase in velocity, the temperature shows a downward trend and the relative humidity shows an upward trend. (4) Conclusions: The most suitable position for the outlet is the middle, with an associated airflow velocity of 0.5 m/s. This study revealed the variation in flow field distribution and air distribution in the pregnant sow piggery as a consequence of changes in ventilation structure, which has certain significance as a reference for the optimization of airflow in intensive pregnant sow piggeries.

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Performance and economic comparison of three annual air-conditioning systems in sow houses

Xie,

Min,

et al. 2024

Applied Thermal Engineering

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074 Effect of pad cooling on summer barn environment and finishing pig temperature

Cited by 3 publications

References 0 publications

Use of Different Cooling Methods in Pig Facilities to Alleviate the Effects of Heat Stress—A Review

Use of Different Cooling Methods in Pig Facilities to Alleviate the Effects of Heat Stress—A Review

Numerical Simulation of Airflow Distribution in a Pregnant Sow Piggery with Centralized Ventilation

Performance and economic comparison of three annual air-conditioning systems in sow houses

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