scholarly journals Evaluation of ammonia emission characteristics according to outside temperature variation from swine finishing barn installed with ground channel ventilation system

2021 ◽  
Vol 23 (2) ◽  
pp. 75-80
Author(s):  
Jinho Shin ◽  
Hee-Cheol Roh ◽  
Daehun Kim ◽  
Jisoo Wi ◽  
Woohee Chung ◽  
...  
Keyword(s):  
Temperature Variation ◽  
Ventilation System ◽  
Ammonia Emission ◽  
Emission Characteristics

Ammonia Emission Characteristics during the Finishing Periods of Pigs Housed with Mechanical Ventilation System

2020 ◽  
Vol 54 (3) ◽  
pp. 63-71
Author(s):  
Gwang-Gon Jo ◽  
Yu-Na Jang ◽  
Tae-Hwan Ha ◽  
Saem-Ee Woo ◽  
Min-Woong Jung
Keyword(s):  
Mechanical Ventilation ◽  
Ventilation System ◽  
Ammonia Emission ◽  
Emission Characteristics

A study on ammonia emission characteristics during growing period of pigs in facility with mechanical ventilation system

2020 ◽  
Vol 19 (1) ◽  
pp. 29-38
Author(s):  
Gwang-Gon Jo ◽  
Tae-Hwan Ha ◽  
Yu-Na Jang ◽  
Si-Young Seo ◽  
Min-Woong Jung
Keyword(s):  
Mechanical Ventilation ◽  
Ventilation System ◽  
Ammonia Emission ◽  
Emission Characteristics ◽  
Growing Period

scholarly journals Ammonia emissions from a naturally and a mechanically ventilated broiler house in Brazil

2014 ◽  
Vol 18 (11) ◽  
pp. 1179-1185 ◽  
Author(s):  
Luciano B. Mendes ◽  
Ilda F. F. Tinoco ◽  
Nico W. M. Ogink ◽  
Keller S. O. Rocha ◽  
Jairo A. Osorio S. ◽  
...  
Keyword(s):  
Ventilation System ◽  
Stocking Density ◽  
Emission Factors ◽  
Ammonia Emission ◽  
Mechanically Ventilated ◽  
Nh3 Emission ◽  
Modeling Process ◽  
Tropical Conditions ◽  
Ventilation Rates ◽  
Broiler House

This study was conducted with the aim of monitoring NH3 emissions from a mechanically and a naturally ventilated broiler house (MVB and NVB, respectively) and calculate their ammonia emission factors (fNH3). Bird stocking density was 13.5 and 11.1 birds m-2 for the MVB and NVB, respectively. The marketing age was 43 days and bedding consisted of dried coffee husks in its first time of use. Ventilation rates were calculated with the metabolic carbon dioxide mass balance method. Values of fNH3 were 0.32 ± 0.10 and 0.27 ± 0.07 g bird-1 d-1 for the MVB and NVB, respectively, and are in agreement to what was presented in other studies performed under similar conditions. The fNH3 estimated on yearly basis was 58 g bird-place-1 year-1. It was concluded that the different types of ventilation system between the studied broiler barns did not significantly affect emissions in the modeling process. The results obtained help providing reliable methodology for the determination of a solid database on NH3 emission factors for tropical conditions that can be used for future inventories, when performed in a sufficient number of barns that is representative for the Brazilian scenario.

Study on the ammonia emission characteristics in an ammonia-based WFGD system

2020 ◽  
Vol 379 ◽  
pp. 122257 ◽  
Author(s):  
Rongting Huang ◽  
Hao Wu ◽  
Linjun Yang
Keyword(s):  
Ammonia Emission ◽  
Emission Characteristics

scholarly journals Ammonia Emission Characteristics of a Mechanically Ventilated Swine Finishing Facility in Korea

Atmosphere ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1088
Author(s):  
Gwanggon Jo ◽  
Taehwan Ha ◽  
Yu Jang ◽  
Okhwa Hwang ◽  
Siyoung Seo ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Ammonia Concentration ◽  
Ventilation Rate ◽  
Ammonia Emission ◽  
Emission Characteristics ◽  
Ammonia Emissions ◽  
Mechanically Ventilated ◽  
Weak Negative Correlation ◽  
The Mean ◽  
Ventilation Rates

In this study, we aimed to determine the ammonia emission characteristics through analysis of ammonia concentration, ventilation rate, temperature, and relative humidity pattern in a mechanically ventilated swine finishing facility in Korea. Three pig rooms with similar environmental conditions were selected for repeated experimentation (Rooms A–C). Ammonia concentrations were measured using a photoacoustic gas monitor, and ventilation volume was estimated by applying the least error statistical model to supplement the missing data after measurement at several operation rates using a wind tunnel-based method. The mean ammonia concentrations were 4.19 ppm, and the ventilation rates were 24.9 m3 h−1 pig−1. Ammonia emissions were calculated within the range of 0.40–5.01, 0.25–4.16, and 0.37–5.68 g d−1 pig−1 for Room A, Room B, and Room C, respectively. Ammonia concentration and ventilation rate showed a weak negative correlation (r = −0.13). Ammonia emissions were more markedly affected by ammonia concentration (r = 0.88) than ventilation rate (r = 0.31). This indicates that ammonia concentration reduction can be effective in reducing ammonia emissions. The mean daily ammonia emissions, which increased exponentially over the finishing periods, were calculated as 1.78, 1.57, and 1.70 g d−1 pig−1 for Room A, Room B, and Room C, respectively (average 1.68 g d−1 pig−1).

Investigation on the ammonia emission characteristics in coal-fired power plants of China

Fuel ◽  
2022 ◽  
Vol 314 ◽  
pp. 123046
Author(s):  
Chengqiang Zheng ◽  
Xiaolong Li ◽  
Junzhuang Li ◽  
Jiuxiang Duan ◽  
Hao Wu ◽  
...  
Keyword(s):  
Power Plants ◽  
Ammonia Emission ◽  
Emission Characteristics

Effects of a partial pit ventilation system on indoor air quality and ammonia emission from a fattening pig room

2010 ◽  
Vol 105 (3) ◽  
pp. 279-287 ◽  
Author(s):  
Chayan Kumer Saha ◽  
Guoqiang Zhang ◽  
Peter Kai ◽  
Bjarne Bjerg
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Ventilation System ◽  
Ammonia Emission
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