Outdoor air conditioning

Modeling of hydrodynamic and heat and mass transfer processes in absorption of the drying air emissions

“…Dehydration port (absorption apparatus) differ in the way the absorbent is supplied. A number of authors [5,6,13,14] carried out a comparison of different types of absorption devices for a number of regime parameters, which showed that the fi lm contact heat and mass exchanger, having the highest energy index, has the best characteristics for the entrainment, which is especially important when working on a solution of lithium chloride, the cost of which is higher than the cost of water. Less risk of breakdown and entrainment of drops of lithium chloride solution is one of the most signifi cant advantages of fi lmtype dehumidifi cation chambers.…”

Development of technology for reducing the technogenic impact of sugar factories on the environment of localities

“…One of the focal points of the environmental policy of the country is production ecologization, i.e. development and implementation of technologies providing ecological balance in nature, circulation of substances and energy, preventing environment pollution [1,10,11,12]. Sugar industry is one of large agribusiness industries processing plant raw materials.…”

“…Based on the study it can be concluded that sugar industry enterprises signifi cantly affect the environment in the areas nearby, therefore, some environmental protection measures to reduce the impact on the environment shall be taken The main ones among them are: • introduction of a maximum possible number of recirculation water systems (at least 7) with minimum water discharge into waste water systems which enables reduction of fresh water consumption and waste water amount by half; fl ume -washing sludge in a settling tank which allows 85% reduction of waste water discharge in relation to beet weight; • application of methods of not natural biological treatment which will result in the reduction of areas for waste treatment facilities (fi lter fi elds) and release of 50-80 ha of fertile soils; • implementation of saturation machines of a new design to increase the saturation gas disposal which will provide 30% reduction of gas consumption in the process line; • application of membrane technology of defecation which will reduce saturation gas consumption twice; • application of sugar refi nery technology using polyelectrolyte without saturation gas application which annually reduces CO 2 consumption by 5 mln m 3 for 1 sugar refi nery mill [9]. It is also necessary to arrange an ecological control system designed to prevent negative impact on the environment [7,9,10,11]. Therefore, to reduce technological impact of sugar industry on water and air, it is necessary to implement new technologies for core production and for waste water treatment, introduce industrial environmental control and implementation of the environmental management system taking into consideration modern requirements.…”

To the question of improving energy-saving and environmental characteristics of urban buildings

“…261 "On Energy Saving and Energy Effi ciency Improvement" of 23 November 2009 aims to create a legal, economic and institutional framework to promote energy saving and energy effi ciency in buildings and structures. Therefore, the issues of energy saving are relevant in all sections of the urban economy, including the creation and reconstruction of buildings, which should have high environmental and energy saving characteristics [1,2,13]. Facades of buildings are one of the most technologically complex, multifaceted and universal components of the building.…”