Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts

K. A. Janni; L. D. Jacobson; R. E. Nicolai; B. Hetchler; V. J. Johnson

Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts

K. A. Janni, L. D. Jacobson, R. E. Nicolai, B. Hetchler, V. J. Johnson

Bioproducts and Biosystems Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Scopus citations

Abstract

Two tunnel ventilated sow gestation buildings (78 m × 15 m), each holding approximately 645 sows, were monitored for emissions of ammonia (NH ₃), carbon dioxide (CO ₂), hydrogen sulfide (H ₂S), odor, and particulate matter 10 μ or less (PM ₁₀) for a large multi-state research project that collected data for 15 months. In order to measure emissions, ventilation rates from each barn were periodically measured using a portable Fan Assessment Numeration System (FANS) unit, that measured airflow capacity of the six (5 - 122 cm and 1 - 91 cm diameter blade fans) exhaust fans at one end of each barn. During the first routine airflow measurements of the large (122 cm diameter) belt-driven fans it was determined that when the fan drive belts were slightly loose that belt slippage occurred and the fan airflow delivery was reduced by 30 to 60% of the fan airflow delivery when the belts were properly tightened. This large reduction in airflow delivery represents a significant reduction in the total ventilation rate for these sow facilities since a large majority of the airflow capacity was provided by these belt-driven fans. Belt-driven fans are commonly used to provide most of the airflow capacity in tunnel ventilated buildings in the U.S. and elsewhere in the world. Belt slippage and dirty shutters can result in serious under ventilation of the barns, providing inadequate environmental control for the animals housed in these buildings.

Original language	English (US)
Title of host publication	Livestock Environment VII - Proceedings of the Seventh International Symposium
Editors	M.J. Briggs, M.E. McCormick
Pages	245-251
Number of pages	7
State	Published - 2005
Event	Livestock Environment VII - 7th International Symposium - Baltimore, MD, United States Duration: Oct 20 2004 → Oct 22 2004

Publication series

Name	Livestock Environment VII - Proceedings of the Seventh International Symposium

Other

Other	Livestock Environment VII - 7th International Symposium
Country/Territory	United States
City	Baltimore, MD
Period	10/20/04 → 10/22/04

Keywords

Fan performance
Fans
Ventilation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

OpenUrl availability

Full text

Cite this

Janni, K. A., Jacobson, L. D., Nicolai, R. E., Hetchler, B., & Johnson, V. J. (2005). Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts. In M. J. Briggs, & M. E. McCormick (Eds.), Livestock Environment VII - Proceedings of the Seventh International Symposium (pp. 245-251). (Livestock Environment VII - Proceedings of the Seventh International Symposium).

Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts. / Janni, K. A.; Jacobson, L. D.; Nicolai, R. E. et al.
Livestock Environment VII - Proceedings of the Seventh International Symposium. ed. / M.J. Briggs; M.E. McCormick. 2005. p. 245-251 (Livestock Environment VII - Proceedings of the Seventh International Symposium).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Janni, KA, Jacobson, LD, Nicolai, RE, Hetchler, B & Johnson, VJ 2005, Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts. in MJ Briggs & ME McCormick (eds), Livestock Environment VII - Proceedings of the Seventh International Symposium. Livestock Environment VII - Proceedings of the Seventh International Symposium, pp. 245-251, Livestock Environment VII - 7th International Symposium, Baltimore, MD, United States, 10/20/04.

Janni KA, Jacobson LD, Nicolai RE, Hetchler B, Johnson VJ. Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts. In Briggs MJ, McCormick ME, editors, Livestock Environment VII - Proceedings of the Seventh International Symposium. 2005. p. 245-251. (Livestock Environment VII - Proceedings of the Seventh International Symposium).

Janni, K. A. ; Jacobson, L. D. ; Nicolai, R. E. et al. / Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts. Livestock Environment VII - Proceedings of the Seventh International Symposium. editor / M.J. Briggs ; M.E. McCormick. 2005. pp. 245-251 (Livestock Environment VII - Proceedings of the Seventh International Symposium).

@inproceedings{f04e7e15a8244635b06f99b4377deaad,

title = "Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts",

abstract = "Two tunnel ventilated sow gestation buildings (78 m × 15 m), each holding approximately 645 sows, were monitored for emissions of ammonia (NH 3), carbon dioxide (CO 2), hydrogen sulfide (H 2S), odor, and particulate matter 10 μ or less (PM 10) for a large multi-state research project that collected data for 15 months. In order to measure emissions, ventilation rates from each barn were periodically measured using a portable Fan Assessment Numeration System (FANS) unit, that measured airflow capacity of the six (5 - 122 cm and 1 - 91 cm diameter blade fans) exhaust fans at one end of each barn. During the first routine airflow measurements of the large (122 cm diameter) belt-driven fans it was determined that when the fan drive belts were slightly loose that belt slippage occurred and the fan airflow delivery was reduced by 30 to 60% of the fan airflow delivery when the belts were properly tightened. This large reduction in airflow delivery represents a significant reduction in the total ventilation rate for these sow facilities since a large majority of the airflow capacity was provided by these belt-driven fans. Belt-driven fans are commonly used to provide most of the airflow capacity in tunnel ventilated buildings in the U.S. and elsewhere in the world. Belt slippage and dirty shutters can result in serious under ventilation of the barns, providing inadequate environmental control for the animals housed in these buildings.",

keywords = "Fan performance, Fans, Ventilation",

author = "Janni, {K. A.} and Jacobson, {L. D.} and Nicolai, {R. E.} and B. Hetchler and Johnson, {V. J.}",

year = "2005",

language = "English (US)",

isbn = "1892769484",

series = "Livestock Environment VII - Proceedings of the Seventh International Symposium",

pages = "245--251",

editor = "M.J. Briggs and M.E. McCormick",

booktitle = "Livestock Environment VII - Proceedings of the Seventh International Symposium",

note = "Livestock Environment VII - 7th International Symposium ; Conference date: 20-10-2004 Through 22-10-2004",

}

TY - GEN

T1 - Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts

AU - Janni, K. A.

AU - Jacobson, L. D.

AU - Nicolai, R. E.

AU - Hetchler, B.

AU - Johnson, V. J.

PY - 2005

Y1 - 2005

N2 - Two tunnel ventilated sow gestation buildings (78 m × 15 m), each holding approximately 645 sows, were monitored for emissions of ammonia (NH 3), carbon dioxide (CO 2), hydrogen sulfide (H 2S), odor, and particulate matter 10 μ or less (PM 10) for a large multi-state research project that collected data for 15 months. In order to measure emissions, ventilation rates from each barn were periodically measured using a portable Fan Assessment Numeration System (FANS) unit, that measured airflow capacity of the six (5 - 122 cm and 1 - 91 cm diameter blade fans) exhaust fans at one end of each barn. During the first routine airflow measurements of the large (122 cm diameter) belt-driven fans it was determined that when the fan drive belts were slightly loose that belt slippage occurred and the fan airflow delivery was reduced by 30 to 60% of the fan airflow delivery when the belts were properly tightened. This large reduction in airflow delivery represents a significant reduction in the total ventilation rate for these sow facilities since a large majority of the airflow capacity was provided by these belt-driven fans. Belt-driven fans are commonly used to provide most of the airflow capacity in tunnel ventilated buildings in the U.S. and elsewhere in the world. Belt slippage and dirty shutters can result in serious under ventilation of the barns, providing inadequate environmental control for the animals housed in these buildings.

AB - Two tunnel ventilated sow gestation buildings (78 m × 15 m), each holding approximately 645 sows, were monitored for emissions of ammonia (NH 3), carbon dioxide (CO 2), hydrogen sulfide (H 2S), odor, and particulate matter 10 μ or less (PM 10) for a large multi-state research project that collected data for 15 months. In order to measure emissions, ventilation rates from each barn were periodically measured using a portable Fan Assessment Numeration System (FANS) unit, that measured airflow capacity of the six (5 - 122 cm and 1 - 91 cm diameter blade fans) exhaust fans at one end of each barn. During the first routine airflow measurements of the large (122 cm diameter) belt-driven fans it was determined that when the fan drive belts were slightly loose that belt slippage occurred and the fan airflow delivery was reduced by 30 to 60% of the fan airflow delivery when the belts were properly tightened. This large reduction in airflow delivery represents a significant reduction in the total ventilation rate for these sow facilities since a large majority of the airflow capacity was provided by these belt-driven fans. Belt-driven fans are commonly used to provide most of the airflow capacity in tunnel ventilated buildings in the U.S. and elsewhere in the world. Belt slippage and dirty shutters can result in serious under ventilation of the barns, providing inadequate environmental control for the animals housed in these buildings.

KW - Fan performance

KW - Fans

KW - Ventilation

UR - http://www.scopus.com/inward/record.url?scp=33645036872&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645036872&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33645036872

SN - 1892769484

SN - 9781892769480

T3 - Livestock Environment VII - Proceedings of the Seventh International Symposium

SP - 245

EP - 251

BT - Livestock Environment VII - Proceedings of the Seventh International Symposium

A2 - Briggs, M.J.

A2 - McCormick, M.E.

T2 - Livestock Environment VII - 7th International Symposium

Y2 - 20 October 2004 through 22 October 2004

ER -

Airflow reduction of large belt-driven exhaust ventilation fans with shutters and loose belts

Abstract

Publication series

Other

Keywords

UN SDGs

OpenUrl availability

Other files and links

Fingerprint

Cite this