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Enhancing the efficiency of evaporative cooling pads for livestock barns and greenhouses by moisture adsorption CIGR Journal
Samer, Mohamed.
High levels of relative humidity negatively affect the efficiency of the evaporative cooling pads installed in livestock barns and greenhouses. Consequently, the productivity decreases causing economic losses. Therefore, this project aims at prototyping innovative dehumidifying/desiccant segments to be installed on the conventional cooling pads enabling them to provide suitable microclimate conditions, especially temperature and relative humidity, for animals and plants. The hypothesis is that desiccant segments adsorb air moisture before introducing the air into the pads; consequently, the treated air is then able to absorb more moisture from the cooling pads, i.e. the cooling pads evaporate more water in the treated air, where water evaporation requires...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Farm Buildings and Construction cooling pads; Livestock housing; Heat stress; Indoor air quality; Greenhouses.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3450
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Studies on fungal and bacterial population of air-conditioned environments BABT
Ross,Claudia; Menezes,Jose Roberto de; Svidzinski,Terezinha Inez Estivalet; Albino,Ulisses; Andrade,Galdino.
In tropical countries such as Brazil, there is not enough information about microbial contaminants in indoor environments with air conditioning systems. Microbial monitoring of such environments is important for the quality of human life. The aim of this work was to assess the fungal genera and bacterial morphotypes occurring in such environments. Air samples were taken indoors and outdoors from a public auditorium, a hospital, a company and a shopping center during the 2001 winter by using a six-stage impactor Millipore M air T® . Twenty-one fungal genera were identified. Bacterial morphological groups found were Gram positive and negative rods and Gram positive coccus.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sick building syndrome; Fungi; Bacteria; Air conditioner; Indoor air quality; Air ecology.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500020
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Indoor Air quality related to occupancy at an air-conditioned public building BABT
Ponsoni,Karina; Raddi,Maria Stella Gonçalves.
To characterize the influence of occupancy on the indoor air quality, a public office building with air-conditioning system was selected for this study. The indoor parameters included total bacteria count, total fungal count, temperature, relative humidity, and carbon dioxide concentration. The number of occupants, which varied throughout the day, was recorded in each sample. The samples were taken before the beginning of the working day and during 3 h, at an interval of 30 min between each sampling, and continued for five working days during a week. Correlation analysis demonstrated that occupancy rates were positively correlated with airborne bacteria, CO2, and temperature. No significant association between the number of occupants and fungus was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Indoor air quality; Air-conditioned; Occupancy; Office building.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000100013
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Indoor Air Quality in the Hospital: The Influence of Heating, Ventilating and Conditioning Systems BABT
Božić,Jelena; Ilić,Predrag; ilić,Svetlana.
Abstract Clean, fresh air is the most important requirement for good indoor air quality (IAQ) in all buildings, but it is especially important with regard to the environments within hospitals and other healthcare facilities. The literature indicates that buildings with heating, ventilating and air conditioning (HVAC) systems may have an increased risk of sick building syndrome (SBS) and building-related illness (BRI) if they are not well maintained. Microorganisms are brought into hospitals by people, air currents, water, construction materials and equipment. The main objective of this study was to assess the degree of fungal and bacterial contamination in the University Clinical Centre in Banja Luka, which is directly connected to the HVAC system....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Indoor air quality; Hospital; HVAC system; Bacteria; Fungi.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100607
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