Abstract
Waste heat utilisation and its reclamation is important for increasing the efficiency of the electric power production and for decreased consumption of primary energy. Waste heat can be utilised for the electric power production or for manufacturing and processing purposes. According to long-term forecasts, the consumption of electric power with current consumption of about 150 TWh, can be increased to about 230 TWh in around 2040, what may lead to the increased energy consumption from fuels and the increased emission of harmful contaminants to the atmosphere. The cement subsector, next to the glass industry, is among the most power-consuming industries, and it consumes about 12-15% of total energy consumed by industry in total, whereas the CO2 emission from such industry exceeds about 5% in worldwide scale. In the cement sector, there is an increasing need for useful reclamation of waste energy, in order to obtain high energy-saving factors, and hence the financial and environmental benefits. In this paper the chances for waste energy reclamation from a rotary kiln are presented, with means of the used adsorption chillers.
Highlights
The efficiency of energy utilised in the business is the important factor influencing on the level of manufacturing costs, company’s profits, competitiveness of products, on social upkeep and on standards of living of citizens
The problem of energy efficiency is treated as priority, because the advancement in such field is very important for the execution of all energy policy goals and for the majority of ecological and climatic policy goals
A basic goal in the area of effectiveness, next to the goals stipulated in the directive, is currently energy consumption decreased with 20%, in comparison to forecasts for 2020, from the energy efficiency increase [1,2]
Summary
The efficiency of energy utilised in the business is the important factor influencing on the level of manufacturing costs, company’s profits, competitiveness of products, on social upkeep and on standards of living of citizens. A basic goal in the area of effectiveness, next to the goals stipulated in the directive, is currently energy consumption decreased with 20%, in comparison to forecasts for 2020, from the energy efficiency increase [1,2]. As it was mentioned, the cement sub-sector is among the most power-consuming industries, that consumes about 12–15% of total energy consumed by whole industry. According to long-term forecasts, the amount of cement sold may increase, what obviously generates the increased electric power consumption and the emission of gases, all works in search for the decreased cement plant’s impact or the increased exploitation level for primary energy are advisable
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