Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Jan Søberg Strøm"'
Publikováno v:
Zhang, G, Strøm, J S, Ravn, P & Kristensen, E F 2011, ' Performance testing of a large, free-blowing propeller and a method for measuring flow rate ', Biosystems Engineering, vol. 110, no. 4, pp. 458-464 . https://doi.org/10.1016/j.biosystemseng.2011.09.012
Performance of a large, free-blowing propeller of 4.3 m in diameter, known as a breeze ventilator, was evaluated in a test hall using air velocity field measurements under the ventilator, including velocity distributions in the near floor region. A f
Publikováno v:
Ye, Z, Zhang, G-Q, Li, B, Strøm, J S, Tong, G & Dahl, P J 2008, ' Influence of airflow and liquid properties on the masstransfer coefficient of ammonia in aqueous solutions ', Biosystems Engineering, vol. 100, no. 3, pp. 422-434 . https://doi.org/10.1016/j.biosystemseng.2008.04.016
The influences of airflow and liquid properties on the mass transfer coefficient of ammonia from aqueous solutions were investigated. In the laboratory experiments using a small-scale model, four ventilation rates with three ventilation control strat
Publikováno v:
Morsing, S, Strøm, J S, Zhang, G & Kai, P 2008, ' Scale model experiments to determine the effects of internal airflow and floor design on gaseous emissions from animal houses ', Biosystems Engineering, vol. 99, no. 1, pp. 99-104 . https://doi.org/10.1016/j.biosystemseng.2007.09.028
Odours and gases emitted from animal houses are strongly related to airflows. Knowledge of the exchange mechanisms between air and the manure surface in the slurry pit, and between air and the soiled surfaces and animals within the building may lead
Autor:
Guoqiang Zhang, Baoming Li, S. Morsing, Jan Søberg Strøm, Preben Jensen Dahl, Chaoyuan Wang, Hans Benny Rom
Publikováno v:
Zhang, G-Q, Strøm, J S, Li, B, Rom, H B, Morsing, S, Dahl, P J & Wang, C 2005, ' Emission of ammonia and other contaminant gases from naturally ventilated dairy cattle buildings ', Biosystems Engineering, vol. 92, no. 3 .
Emission of contaminant gases from livestock buildings is a major source of pollution within agriculture. Much research has been performed to find technical solutions that may be used to reduce these emissions. However, information and data on emissi
Autor:
Peter Ravn, Peter Kai, Guoqiang Zhang, Jan Søberg Strøm, Guohong Tong, Bjarne Bjerg, S. Morsing
Publikováno v:
Zhang, G, Bjerg, B, Strøm, J S, Morsing, S, Kai, P, Tong, G & Ravn, P 2008, ' Emission effects of three different ventilation control strategies-A scale model study ', Biosystems Engineering, vol. 100, no. 1, pp. 96-104 . https://doi.org/10.1016/j.biosystemseng.2008.01.012
The objectives of this paper are to determine the effects of varying the ventilation rates on ammonia emission using three different control strategies: constant inlet opening area, constant inlet air velocity and constant inlet air jet momentum. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33b1250f189dcab9c478f4bd4f3bc28b
https://pure.au.dk/portal/da/publications/emission-effects-of-three-different-ventilation-control-strategies--a-scale-model-study(f13d64d0-0b98-11dd-ac47-000ea68e967b).html
https://pure.au.dk/portal/da/publications/emission-effects-of-three-different-ventilation-control-strategies--a-scale-model-study(f13d64d0-0b98-11dd-ac47-000ea68e967b).html
Publikováno v:
Zhang, G-Q, Strøm, J S, Blanke, M & Braithwaite, I 2006, ' Spectral signatures of surface materials in pig buildings ', Biosystems Engineering, vol. 94, no. 4, pp. 495-504 .
Manual cleaning of pig production buildings based on high-pressure water cleaners is unappealing to workers, because it is tedious and health threatening. To replace manual cleaning, a few cleaning robots have been commercialised. With no cleanliness
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56b846c76ca4c84fa13cfe5bf53a5bb0
https://pure.au.dk/ws/files/236463/GQZ_et_al_06_Spectral_signatures.pdf
https://pure.au.dk/ws/files/236463/GQZ_et_al_06_Spectral_signatures.pdf
Publikováno v:
Morsing, S, Zhang, G, Strøm, J S, Bennetsen, J C & Ravn, P 2004, ' Air velocity and temperature distribution in a covered creep for piglets ', American Society of Agricultural and Biological Engineers. Transactions, vol. 47, no. 5, pp. 1747-1755 . < https://agris.fao.org/agris-search/search.do?recordID=US201300959693 >
A covered creep is primarily used to protect temperature-sensitive piglets. Knowledge of the air motion and the temperature distribution in a covered creep space is important for the optimization of the creep configuration. Experiments were carried o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e260c0605941cf3427478d8ab812aee
https://pure.au.dk/portal/da/publications/air-velocity-and-temperature-distribution-in-a-covered-creep-for-piglets(b8d64190-d618-11db-8e26-000ea68e967b).html
https://pure.au.dk/portal/da/publications/air-velocity-and-temperature-distribution-in-a-covered-creep-for-piglets(b8d64190-d618-11db-8e26-000ea68e967b).html
Publikováno v:
Transactions of the ASAE. 45
Air velocities near the floor of slot–ventilated buildings are the result of interaction between the supply air jet and the geometry of the confined space. To predict air velocity, the effect of the inlet air jet momentum and the room geometry has
Publikováno v:
Zhang, G, Bjerg, B, Morsing, S, Svidt, K & Strøm, J S 2000, ' Test Room for Validation of Airflow Patterns Estimated by Computational Fluid Dynamics ', Biosystems Engineering, vol. 76, no. 2, pp. 141-148 .
Zhang, G-Q, Morsing, S, Bjerg, B, Svidt, K & Strøm, J S 2000, ' Test room for validation of airflow patterns estimated by computational fluid dynamics ', Journal of Agricultural Engineering Research, vol. 76, pp. 141-148 .
University of Copenhagen
Aalborg University
Zhang, G-Q, Morsing, S, Bjerg, B, Svidt, K & Strøm, J S 2000, ' Test room for validation of airflow patterns estimated by computational fluid dynamics ', Journal of Agricultural Engineering Research, vol. 76, pp. 141-148 .
University of Copenhagen
Aalborg University
Symmetrical room geometry is not a sufficient condition for the design of a ventilated room where two-dimensional airflows are to be generated. Three-dimensional effects were observed in a symmetrically designed 3 m high by 5 m wide by 8·5 m long te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0514e31b0ac4e12693c9ae1177bba614
https://vbn.aau.dk/da/publications/4fe21a00-8092-11db-8b97-000ea68e967b
https://vbn.aau.dk/da/publications/4fe21a00-8092-11db-8b97-000ea68e967b
Publikováno v:
Zhang, G-Q, Morsing, S & Strøm, J S 1996, ' Modeling jet drop distances for control of a nonisothermal, flap-adjusted ventilation jet ', American Society of Agricultural and Biological Engineers. Transactions, vol. 39, no. 4, pp. 1421-1431 .
In order to find criteria which can be used to control the trajectory of the air jet into a ventilated airspace, modeling the drop distance using the Archimedes number is proposed. The term “jet drop distance”, defined as the horizontal distance