Method for measuring fan ventilation rates in livestock buildings - velocity pressure measurement

Yanyan Liu; Ronaldo G. Maghirang; Do Sup Chung

Method for measuring fan ventilation rates in livestock buildings - velocity pressure measurement

Yanyan Liu
, Ronaldo G. Maghirang
, Do Sup Chung

Research output: Contribution to journal › Conference article › peer-review

Abstract

This study was conducted to develop and evaluate a method that can be used to continuously measure fan ventilation rates in livestock buildings. The method involved measurement of velocity pressures using two tubes with holes. The holes in one tube faced directly upstream to sense total pressure, while those in the second tube faced directly downstream to sense static pressure. Positioning the measuring unit upstream of the test fan and using a 27 in.×27 in. (68 cm×68 cm) duct provided the best results. For this setup and at a static pressure of 0.10 in. water (25 Pa), the absolute deviations of predicted values from measured values ranged from 18 cfm (31 m³/h) to 52 cfm (88 m³/h) for the axial fans tested. Additionally, this setup had only slight effects on fan performance. This study demonstrated the potential of using the method for ventilation rate measurement in livestock buildings.

Original language	English (US)
Pages (from-to)	1679-1684
Number of pages	6
Journal	ASHRAE Transactions
Volume	104
Issue number	Pt 1B
State	Published - 1998
Externally published	Yes
Event	Proceedings of the 1998 ASHRAE Winter Meeting. Part 1 (of 2) - San Francisco, CA, USA Duration: Jan 18 1998 → Jan 21 1998

ASJC Scopus subject areas

Fluid Flow and Transfer Processes

Library availability

Discover UIUC Full Text

Cite this

@article{10f650ac85b54cdbab4a233849370eaa,

title = "Method for measuring fan ventilation rates in livestock buildings - velocity pressure measurement",

abstract = "This study was conducted to develop and evaluate a method that can be used to continuously measure fan ventilation rates in livestock buildings. The method involved measurement of velocity pressures using two tubes with holes. The holes in one tube faced directly upstream to sense total pressure, while those in the second tube faced directly downstream to sense static pressure. Positioning the measuring unit upstream of the test fan and using a 27 in.×27 in. (68 cm×68 cm) duct provided the best results. For this setup and at a static pressure of 0.10 in. water (25 Pa), the absolute deviations of predicted values from measured values ranged from 18 cfm (31 m3/h) to 52 cfm (88 m3/h) for the axial fans tested. Additionally, this setup had only slight effects on fan performance. This study demonstrated the potential of using the method for ventilation rate measurement in livestock buildings.",

author = "Yanyan Liu and Maghirang, \{Ronaldo G.\} and Chung, \{Do Sup\}",

year = "1998",

language = "English (US)",

volume = "104",

pages = "1679--1684",

journal = "ASHRAE Transactions",

issn = "0001-2505",

publisher = "American Society of Heating Refrigerating and Air-Conditioning Engineers",

number = "Pt 1B",

note = "Proceedings of the 1998 ASHRAE Winter Meeting. Part 1 (of 2) ; Conference date: 18-01-1998 Through 21-01-1998",

}

TY - JOUR

T1 - Method for measuring fan ventilation rates in livestock buildings - velocity pressure measurement

AU - Liu, Yanyan

AU - Maghirang, Ronaldo G.

AU - Chung, Do Sup

PY - 1998

Y1 - 1998

N2 - This study was conducted to develop and evaluate a method that can be used to continuously measure fan ventilation rates in livestock buildings. The method involved measurement of velocity pressures using two tubes with holes. The holes in one tube faced directly upstream to sense total pressure, while those in the second tube faced directly downstream to sense static pressure. Positioning the measuring unit upstream of the test fan and using a 27 in.×27 in. (68 cm×68 cm) duct provided the best results. For this setup and at a static pressure of 0.10 in. water (25 Pa), the absolute deviations of predicted values from measured values ranged from 18 cfm (31 m3/h) to 52 cfm (88 m3/h) for the axial fans tested. Additionally, this setup had only slight effects on fan performance. This study demonstrated the potential of using the method for ventilation rate measurement in livestock buildings.

AB - This study was conducted to develop and evaluate a method that can be used to continuously measure fan ventilation rates in livestock buildings. The method involved measurement of velocity pressures using two tubes with holes. The holes in one tube faced directly upstream to sense total pressure, while those in the second tube faced directly downstream to sense static pressure. Positioning the measuring unit upstream of the test fan and using a 27 in.×27 in. (68 cm×68 cm) duct provided the best results. For this setup and at a static pressure of 0.10 in. water (25 Pa), the absolute deviations of predicted values from measured values ranged from 18 cfm (31 m3/h) to 52 cfm (88 m3/h) for the axial fans tested. Additionally, this setup had only slight effects on fan performance. This study demonstrated the potential of using the method for ventilation rate measurement in livestock buildings.

UR - https://www.scopus.com/pages/publications/0031622944

UR - https://www.scopus.com/pages/publications/0031622944#tab=citedBy

M3 - Conference article

AN - SCOPUS:0031622944

SN - 0001-2505

VL - 104

SP - 1679

EP - 1684

JO - ASHRAE Transactions

JF - ASHRAE Transactions

IS - Pt 1B

T2 - Proceedings of the 1998 ASHRAE Winter Meeting. Part 1 (of 2)

Y2 - 18 January 1998 through 21 January 1998

ER -

Method for measuring fan ventilation rates in livestock buildings - velocity pressure measurement

Abstract

ASJC Scopus subject areas

Library availability

Related links

Fingerprint

Cite this