The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper deals with the influence of R12 working fluid replacements on energy efficiency and global warming expressed by values of Coefficient of Performance (COP) and Total Equivalent Warming Impact (TEWI). Experimental investigations are presented which relate the use of refrigerants R134a, R401A, R409A, R22 and the mixture of R134a with R12 to the values of COP and TEWI of refrigerating system...
Opisano szczególnie interesujący czynnik chłodniczy R 134a o bardzo zblizonych właściwościach termodynamicznych, nie wymagających zmian lub przeróbek podzespołów w istniejących instalacjach chłodniczych.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.