Applicability of Ammonia Sensors for Controlling Environmental Parameters in Accommodations for Lamb Fattening

García Ramos, Francisco Javier and Aguirre, A. Javier and Barreiro Elorza, Pilar and Horcas, Esperanza and Boné Garasa, Antonio and Vidal, Mariano (2018). Applicability of Ammonia Sensors for Controlling Environmental Parameters in Accommodations for Lamb Fattening. "Journal of Sensors", v. 2018 ; pp. 1-8. ISSN 1687-7268. https://doi.org/10.1155/2018/4032043.

Description

Title: Applicability of Ammonia Sensors for Controlling Environmental Parameters in Accommodations for Lamb Fattening
Author/s:
  • García Ramos, Francisco Javier
  • Aguirre, A. Javier
  • Barreiro Elorza, Pilar
  • Horcas, Esperanza
  • Boné Garasa, Antonio
  • Vidal, Mariano
Item Type: Article
Título de Revista/Publicación: Journal of Sensors
Date: March 2018
ISSN: 1687-7268
Volume: 2018
Subjects:
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Ingeniería Agroforestal
UPM's Research Group: Técnicas Avanzadas en Agroalimentación LPF-TAGRALIA
Creative Commons Licenses: Recognition

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Abstract

Electrochemical ammonia sensors were used to analyse the existing relationship between the ammonia concentration and ambient levels of both temperature and relative humidity in commercial lamb fattening housing equipped with mechanical ventilation and straw-bedded pens. In the first stage of the experiment, sensors were placed over straw beds covered in lamb urine and analysed under laboratory conditions in order to determine ammonia emission evolution over time; three control temperatures (25, 35, and 50°C) were used. A HOBO H8 temperature and relative humidity logger and a Dräger NH3LC-6809680 electrochemical ammonia sensor placed in a Dräger Polytron 7000 gas detector were utilized as sensors. A positive correlation was established between both ammonia emission time and emitted amount with temperature. Additionally, tests were performed in a commercial lamb housing to determine ammonia concentration variation with respect to height from the ground; three ammonia sensors placed at 50, 90, and 135 cm above the ground were used simultaneously. The ammonia concentration significantly decreased as height increased. A 90 cm height was selected, and three ammonia probes were placed in three different pens inside the livestock housing, along with temperature and relative humidity sensors; four different housing ventilation rates were then tested under real conditions over a time period of 4 months. An adjustment polynomial equation between the housing ambient temperature and the ammonia concentration was obtained with R2 = 0.632. In conclusion, a relationship can be established between temperature and ammonia concentration in commercial lamb housing under certain handling conditions, which in turn allows for estimating the ammonia concentration adequately based on the ambient internal temperature.

More information

Item ID: 55833
DC Identifier: http://oa.upm.es/55833/
OAI Identifier: oai:oa.upm.es:55833
DOI: 10.1155/2018/4032043
Official URL: https://www.hindawi.com/journals/js/2018/4032043/
Deposited by: Catedrática Pilar Barreiro
Deposited on: 17 Jul 2019 06:30
Last Modified: 17 Jul 2019 06:30
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