Open AccessFeatures of calculation of refrigerating machines with combined cooling of condensers taking into account climatic and economic factors
Author(s) -
A. N. Fot,
D. K. Melnikov
Publication year - 2021
Publication title -
omskij naučnyj vestnik. seriâ "aviacionno-raketnoe i ènergetičeskoe mašinostroenie"
Language(s) - English
Resource type - Journals
eISSN - 2588-0373
pISSN - 2587-764X
DOI - 10.25206/2588-0373-2021-5-4-17-23
Subject(s) - refrigeration , condensation , environmental science , range (aeronautics) , unit (ring theory) , water cooling , computer science , process engineering , mechanical engineering , meteorology , engineering , mathematics , geography , mathematics education , aerospace engineering
A method for calculating refrigerating machines with a condensation unit implementing water and air cooling methods is proposed taking into account the economic and climatic features of the calculated region. Since economic and climatic factors have different degrees of influence on the energy efficiency and efficiency of refrigerating machines over the entire range of changing temperatures of cooling media, the results of calculating refrigerating machines according to the proposed methodology allow making informed decisions about the layout of the condensation unit both at the design stage and at the stage of developing a program for managing the refrigeration unit throughout the year. A comparative analysis of refrigerating machines with combined cooling of condensers for the regions of Omsk and Berlin is carried out. The most significant influence of the climatic factor at low temperatures of the cooling air and the influence of the cost of cooling water at high air temperatures were revealed.