A refined protocol for calculating air flow rate of naturally ventilated broiler barns based on CO2 mass balance

Luciano Barreto Mendes; Ilda de Fatima Ferreira Tinoco; Nico Ogink; Robinson Osorio Hernandez; Jairo Alexander Osorio Saraz

A refined protocol for calculating air flow rate of naturally ventilated broiler barns based on CO2 mass balance

Luciano Barreto Mendes, Ilda de Fatima Ferreira Tinoco, Nico Ogink, Robinson Osorio Hernandez, Jairo Alexander Osorio Saraz

Onderzoeksoutput: Bijdrage aan tijdschrift › A4: Artikel in een tijdschrift niet inbegrepen in A1, A2 of A3 › peer review

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This study was conducted to evaluate relatively simple protocols for monitoring ventilation rate (VR) in naturally-ventilated barns (NVB). The test protocols were first applied to a mechanically-ventilated broiler barn (MVB), where VR was estimated more accurately and then were used to calculate VR in the NVB. CO2 concentrations were measured with two different sampling schemes: (S1) the average of indoor measurements along the length of the building at two heights of 0.5 m and 1.5 m from the litter floor; and (S2) same as previous but with concentration measurements taken only at 0.5 m from litter. The dynamic metabolic CO2 production rate of the birds was predicted with two different algorithms: (A1) remaining constant throughout the dark and light periods, and (A2) varying with animal activity on an hourly basis. The results demonstrated that the combination of S2 with A1 or A2 yielded the best estimate of building VR in the NVB.

Oorspronkelijke taal	Engels
Tijdschrift	DYNA
Aantal pagina’s	7
ISSN	0012-7353
Publicatiestatus	Gepubliceerd - 31-mei-2014

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Mendes et al, 2014 DYNA!!Submitted manuscript, 586 KB

NATVENT: Ontwikkeling van een praktijkmeettechniek voor het luchtdebiet en emissies van natuurlijk geventileerde stalsystemen
Demeyer, P., De Vogeleer, G. & Van Overbeke, P.
1/01/11 → 31/12/14
Project: Onderzoek

Dit citeren

@article{af30b44560f840e4b6e70b292841b5dd,

title = "A refined protocol for calculating air flow rate of naturally ventilated broiler barns based on CO2 mass balance",

abstract = "This study was conducted to evaluate relatively simple protocols for monitoring ventilation rate (VR) in naturally-ventilated barns (NVB). The test protocols were first applied to a mechanically-ventilated broiler barn (MVB), where VR was estimated more accurately and then were used to calculate VR in the NVB. CO2 concentrations were measured with two different sampling schemes: (S1) the average of indoor measurements along the length of the building at two heights of 0.5 m and 1.5 m from the litter floor; and (S2) same as previous but with concentration measurements taken only at 0.5 m from litter. The dynamic metabolic CO2 production rate of the birds was predicted with two different algorithms: (A1) remaining constant throughout the dark and light periods, and (A2) varying with animal activity on an hourly basis. The results demonstrated that the combination of S2 with A1 or A2 yielded the best estimate of building VR in the NVB. ",

author = "{Barreto Mendes}, Luciano and {Ferreira Tinoco}, {Ilda de Fatima} and Nico Ogink and {Osorio Hernandez}, Robinson and {Osorio Saraz}, {Jairo Alexander}",

year = "2014",

month = may,

day = "31",

language = "English",

journal = "DYNA",

issn = "0012-7353",

publisher = "Universidad Nacional de Colombia",

}

TY - JOUR

T1 - A refined protocol for calculating air flow rate of naturally ventilated broiler barns based on CO2 mass balance

AU - Barreto Mendes, Luciano

AU - Ferreira Tinoco, Ilda de Fatima

AU - Ogink, Nico

AU - Osorio Hernandez, Robinson

AU - Osorio Saraz, Jairo Alexander

PY - 2014/5/31

Y1 - 2014/5/31

N2 - This study was conducted to evaluate relatively simple protocols for monitoring ventilation rate (VR) in naturally-ventilated barns (NVB). The test protocols were first applied to a mechanically-ventilated broiler barn (MVB), where VR was estimated more accurately and then were used to calculate VR in the NVB. CO2 concentrations were measured with two different sampling schemes: (S1) the average of indoor measurements along the length of the building at two heights of 0.5 m and 1.5 m from the litter floor; and (S2) same as previous but with concentration measurements taken only at 0.5 m from litter. The dynamic metabolic CO2 production rate of the birds was predicted with two different algorithms: (A1) remaining constant throughout the dark and light periods, and (A2) varying with animal activity on an hourly basis. The results demonstrated that the combination of S2 with A1 or A2 yielded the best estimate of building VR in the NVB.

AB - This study was conducted to evaluate relatively simple protocols for monitoring ventilation rate (VR) in naturally-ventilated barns (NVB). The test protocols were first applied to a mechanically-ventilated broiler barn (MVB), where VR was estimated more accurately and then were used to calculate VR in the NVB. CO2 concentrations were measured with two different sampling schemes: (S1) the average of indoor measurements along the length of the building at two heights of 0.5 m and 1.5 m from the litter floor; and (S2) same as previous but with concentration measurements taken only at 0.5 m from litter. The dynamic metabolic CO2 production rate of the birds was predicted with two different algorithms: (A1) remaining constant throughout the dark and light periods, and (A2) varying with animal activity on an hourly basis. The results demonstrated that the combination of S2 with A1 or A2 yielded the best estimate of building VR in the NVB.

M3 - A4: Article in journal not included in A1, A2 or A3

SN - 0012-7353

JO - DYNA

JF - DYNA

ER -

A refined protocol for calculating air flow rate of naturally ventilated broiler barns based on CO2 mass balance

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Projecten

NATVENT: Ontwikkeling van een praktijkmeettechniek voor het luchtdebiet en emissies van natuurlijk geventileerde stalsystemen

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