Сучасні проблеми холодильної техніки та технології (Modern problems of refrigeration technology and technology)
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Перегляд Сучасні проблеми холодильної техніки та технології (Modern problems of refrigeration technology and technology) за Ключові слова "cooling"
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- ДокументOperational efficiency improvements for refrigeration systems during summer period(2017) Nesterov, P. S.; Buyadgie, O. D.; Khmelniuk, M. G.; Yakovleva, O. Y.Nowadays Refrigeration Systems (RS) consume large amounts of electricity. That’s why RS pay significantly to the running costs of businesses with substantial cooling requirements. Improving simple operational practices with minimum cost can contribute to reduction energy costs by 20% or even more. It becomes more important as a price is placed on greenhouse gas emission in future years and as energy prices rise. Its importance also relates to an increased focus on reducing fugitive emissions from industrial systems such as refrigerant gas. It leads to a peak load on energy capacity in the summer, and has a disastrous effect on climate change, which in own turn leads to an increase in the maximum summer temperatures and their duration for the season. The latter factor causes an increased demand for cold, but at the same time an inevitable increase in the condensation temperature. Often it is accompanied by a destabilization of the refrigeration machine performance, up to an extreme fall in cooling capacity. As a result, the economy and the environment suffer.
- ДокументRadiative cooling method in the air conditioning system(2017) Tsoy, A. P.; Tsoy, D. A.In the modern world, refrigeration and air conditioning systems are rapidly developing industries with high energy consumption. In this regard, there is significant interest in improving energy efficiency.
- ДокументThe search of energy–efficient operation mode of ammonia-water-absorption refrigeration machines(2017) Osadchuk, E. A.; Kirilov, V. Kh.; Mazurenko, S. Yu.A basic volume of the market of equipment for the separation of water from the air, in our times, falls on the systems, having in its composition compression refrigeration unit electrically-driven. At the same time, the use of compression unit is perspective only for the performance to 3-4 liters per hour. There is substantial growth of sizes of setting at more high performance. The necessary condition of work of compression refrigerating machines is the availability of electrical energy. At the same time, the overwhelming number of countries experiencing water shortages are limited in energy resources. The sun is the only source of energy that they have. Thus, the problem of obtaining water from atmospheric air is an actual scientific and practical task which didn’t find the decision up till now and most of the technical proposals remain on the level of patents.