The control system of the ecological hybrid two stages refrigerating cycle / Piotr Cyklis, Roman Duda // E3S Web of Conferences [Dokument elektroniczny]. – 2016, Vol. 10, 6 s. : rys., schem., wykr. – ... więcej

The control system of the ecological hybrid two stages refrigerating cycle / Piotr Cyklis, Roman Duda // E3S Web of Conferences [Dokument elektroniczny]. – 2016, Vol. 10, 6 s. : rys., schem., wykr. – Tryb dostępu: http://www.e3s-conferences.org/articles/e3sconf/pdf/2016/05/e3sconf_seed2016_00018.pdf. – Bibliogr. 6 poz., Abstr. – Mat. konf.: 1st International Conference on the Sustainable Energy and Environment Development, AGH UST in Krakow, 17-19.05.2016. – doi: 10.1051/e3sconf/20161000018. – ISSN 2267-1242

The compression anticlockwise cycle is mostly used for refrigeration. However due to the environmental regulations, the use of classic refrigerants: F-gases is limited by international agreements. Therefore ... więcej

The compression anticlockwise cycle is mostly used for refrigeration. However due to the environmental regulations, the use of classic refrigerants: F-gases is limited by international agreements. Therefore the combined compression-adsorption hybrid cycle with natural liquids: water/carbon dioxide working as the energy carriers is a promising solution. This allows to utilize the solar or waste energy for the refrigeration purpose. In this paper application of the solar collectors as the energy source for the adsorption cycle, coupled with the low temperature (LT) refrigerating carbon dioxide compression cycle is shown. The control of the system is an essential issue to reduce the electric power consumption. The control of the solar heat supply and water sprayed cooling tower, for the adsorption cycle re-cooling, is presented in this paper. The designed control system and algorithm is related to the LT compression cycle, which operates according to the need of cold for the refrigeration chamber. The results of the laboratory investigations of the full system, showing the reduction of the energy consumption and maximum utilization of the solar heat for different control methods are presented.