EFFECT OF DIRT, LOUVERS AND OTHER ATTACHMENTS ON FAN PERFORMANCE.

H. L. Person, L. D. Jacobson, K. A. Jordan

Research output: Contribution to journalConference article

Abstract

The paper reports on a study in which factors influencing the performance of used livestock ventilating fans were evaluated. Such factors as the effect of louvers, guards, corrosion of louver joints, and dust and moisture accumulation were studied. The louvers and their maintenance had the largest effect on fan performance. The effect of guards depends upon how much they constrict airflow. Of the two fans tested the total efficiency reduction ranged fromn 0 to 15 percent. Dust and moisture accumulation on guards may cause further reduction in fan performance. Corrosion of louver joints can have a large effect upon fan performance. The extent of performance reduction depends upon the moment that must be applied to the louvers to open them. Proper lubrication of louvers is probably the most important factor in maintaining fan performance. Dust and moisture accumulation on louvers can have a substantial effect upon fan performance. This depends upon the mass of material that accumulates on the louver surface, thus requiring a greater moment to open the louver. Fan discharge was reduced up to 24 percent on a fan with wet caked louvers.

Original languageEnglish (US)
JournalPaper - American Society of Agricultural Engineers
StatePublished - Jan 1 1978
EventPap ASAE for Winter Meet - Chicago, IL, USA
Duration: Dec 13 1977Dec 16 1977

Fingerprint

Dust
dust
Corrosion
corrosion
joints (animal)
Joints
Lubrication
Livestock
air flow
livestock
Maintenance

Cite this

EFFECT OF DIRT, LOUVERS AND OTHER ATTACHMENTS ON FAN PERFORMANCE. / Person, H. L.; Jacobson, L. D.; Jordan, K. A.

In: Paper - American Society of Agricultural Engineers, 01.01.1978.

Research output: Contribution to journalConference article

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abstract = "The paper reports on a study in which factors influencing the performance of used livestock ventilating fans were evaluated. Such factors as the effect of louvers, guards, corrosion of louver joints, and dust and moisture accumulation were studied. The louvers and their maintenance had the largest effect on fan performance. The effect of guards depends upon how much they constrict airflow. Of the two fans tested the total efficiency reduction ranged fromn 0 to 15 percent. Dust and moisture accumulation on guards may cause further reduction in fan performance. Corrosion of louver joints can have a large effect upon fan performance. The extent of performance reduction depends upon the moment that must be applied to the louvers to open them. Proper lubrication of louvers is probably the most important factor in maintaining fan performance. Dust and moisture accumulation on louvers can have a substantial effect upon fan performance. This depends upon the mass of material that accumulates on the louver surface, thus requiring a greater moment to open the louver. Fan discharge was reduced up to 24 percent on a fan with wet caked louvers.",
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