Energy-Saving Electrical Installations for Heat Supply of Agricultural Objects

Abstract

Electrical energy in the thermal processes of agricultural production has a number of technical and technological advantages in comparison with other energy carriers. At the same time, electricity is the most high-quality but expensive type of energy. The effective use of electrical energy in thermal processes is possible with the implementation of all its advantages over fuel energy. This requires a system of technical, economic, and energy analysis and the selection justification of the most effective systems and technical means of heat supply of stationary agricultural technological processes. The chapter presents functional and technological schemes, physical models, the experimentally obtained dependencies, parameters, and operating regimes of the developed energy-saving electrical equipment and systems for the main thermal technological processes.

Study of Potential Application Air Curtains in Livestock Premises at Cattle Management Farms

“…(1) p in < p out -outdoor pressure exceeds that inside the premises, over the entire aperture height; (2) p in > p out -indoor pressure exceeds that outside the premises, over the entire aperture height.…”

“…Maintaining the necessary microclimate parameters in cattle management premises of farms normally requires up to 60% of the total thermal energy consumed for heat supply purposes. The efficiency enhancement of the heat supply and ventilation systems aimed at the reduction of energy consumed for providing and maintaining normative microclimate parameters, in cattle management premises of livestock farms, is an essential objective [1,2]. For regions with a winter design temperature below −20 • C, either the availability of an entrance hall at the gate of cattle management premises or the application of air curtains with air heating is a mandatory requirement [3].…”

Energy-saving Heating System Using Electric Heat Accumulators and Ceiling Fans

“…Длина лопасти -620 мм, число лопастей -3.Применение электрической теплоаккумулирующей установки для нагрева воздуха комбинированного типа обеспечивает снижение текущих годовых затрат у потребителя на оплату электроэнергии до 30 % за счет работы по дифференцированному тарифу в течение суток (рис. 2)[10, 11].Установка состоит из двух независимых нагревателей -аккумулирующего сердечника и конвектора. Аккумулирующий тепловую энергию сердечник заряжается в период действия минимального тарифа на электроэнергию, а отдает теплоРис.1.…”