@inproceedings{4c2fdff070ad444da3a2d14709d5c152,
title = "Design and performance evaluation of upgraded portable monitoring units for barn air quality",
abstract = "The Portable Monitoring Unit (PMU) was originally developed and used for measuring ammonia (NH3) and carbon dioxide (C02) concentrations and emissions from poultiy facilities, Its use entailed a substantial degree of manual setup and data processing, making deployment of multiple PMUs in field measurements a logistic challenge. The original commercial electrochemical (EC) sensor for NH3 is obsolete and no longer available. Thus, an effort to upgrade the PMU design was undertaken. A substantial redesign of the PMU system is reported in this paper, and includes an upgraded data acquisition and control system (DACS), wireless data transfer capability, and a new commercial NH3 EC sensor. An evaluation of existing EC sensors was performed, a sample of potential sensors was evaluated, and the selected sensor was further tested to characterize its accuracy and limitations. The performance of the upgraded PMU during field measurement in a commercial laying hen house and subsequent laboratory reassessment was evaluated and is reported here. Results demonstrate the feasibility of new system, termed the 1PMU (Intelligent Portable Monitoring Unit).",
keywords = "Air quality, Ammonia, Carbon dioxide, Concentration, Emission",
author = "B. Ji and Gates, {R. S.} and W. Zheng and Grift, {T. E.} and Green, {A. R.} and Koelkebeck, {K. W.}",
note = "Publisher Copyright: Copyright {\textcopyright} (2015) by the American Society of Agricultural & Biological Engineers.; American Society of Agricultural and Biological Engineers Annual International Meeting 2015 ; Conference date: 26-07-2015 Through 29-07-2015",
year = "2015",
language = "English (US)",
series = "American Society of Agricultural and Biological Engineers Annual International Meeting 2015",
publisher = "American Society of Agricultural and Biological Engineers",
pages = "774--787",
booktitle = "American Society of Agricultural and Biological Engineers Annual International Meeting 2015",
}