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Azeotropic mixture in the refrigerator instead the prospect of CFC-12


sferatpoolhoiKugofmixture $ withR224ndRq15, P ∞ cItitCentHeatMa3sTransfer24Gropp, Uetal, Theiafluenceliquid'sidemas8transferoilheattransferandsel ~-etivityduritigsurfaceandnucleateboilingofliquidminturesafoilingfilm, ChemEngProcess, (1988) 20. Rosen, Setal, Behavior0frefrigerantoilsandGenetron141, RefrigEng, (1957) 65Bennett. Reta1. Lubricationofl ~ efrigenant22refrigerationplant, JRefrig (1966) Enjo. N. . Fujiwara, H. . Rz2/a115/R290mixturerefrigerant. Reito, (197B) 50Enjo. N. , Noguehi. M. tRefrigerantandlub-rieatingoil, Reito, (1985) 60Biveas,[link widoczny dla zalogowanych], D. et1,[link widoczny dla zalogowanych], Alterm. nYetefrigeraatblendsseminarpresentationqtASHRAEAmn-ua1MeetingandTechnicalConferenceIVaneo-vver, BritishColumbia, June. 1989. Sanders, P. . HandbookofAerosolTechnology, RobertE. Krieger. M ~ abar, FL (1987) Hua Sha Deng, home soo box instead of R12, fluid engineering, 199L. B. Xi'an Jiaotong University, Engineering Thermal Physics Proceedings, 1990.11. Enhanced absorption of lithium bromide absorption chiller measures the thermal mass transfer of Mechanical Engineering Shanghai Zhou Qijin I. Introduction II surface, including the mechanism of absorption enhancement agent as rubidium refrigerant HCFC ozone layer in the atmosphere since the signing of the Montreal Protocol Aite Crafts Ⅱ Since the world is vigorously carrying out research on alternative refrigerants,[link widoczny dla zalogowanych], which promote the use of lithium bromide absorption chiller is a force direction. Rubidium lithium bromide absorption cooler big drawback is that the metal consumption, in particular, is one of the absorber, due to their low heat transfer coefficient (70O a 8OOw / m ・ K),[link widoczny dla zalogowanych], heat transfer temperature difference is small, so its huge size. Therefore, we must strengthen the absorber heat exchanger to reduce the entire force of lithium bromide absorption chiller metal consumption. Japan, the United States and the Soviet Union, some of the absorption chiller manufacturer in order to strengthen the absorber heat exchanger, usually in the lithium bromide solution, add the surfactant Tuo agent, so that cooling can increase about 20 to 40. However, due to the surface of living his Jing (such as octanol, etc.) of the density and solubility of small and easily accumulate in the free surface of lithium bromide solution, thus greatly reducing the spray solution absorption. Is now widely used method of free surface heating liquid, evaporation of the surface active agent, but that they would decrease the amount of refrigerator cold, the effect is not very satisfactory. In the surface, then adding lithium bromide solution of Jing, due to the additive surface tension surrounding the droplet increased significantly, created a great imbalance of power, which triggered a fierce Mana convection of the Niger. LiBr solution increases when the surface of words of Jing force balance on the surface, as shown in Figure 1 (a) shows, the formula below. I;: 2COS mouth +-COS formula - the surface tension of LiBr Aqueous Solution: - activation of the surface tension of Jing - Jing He lithium bromide solution and live on the interface when the interfacial tension of lithium bromide solution absorbs the steam, the>,[link widoczny dla zalogowanych],, M in the solution due to the evil of the Nigerian convection (see Figure l (b)) is too large for the absorptive capacity of the solution. Wait surfactant solution interfacial tension and the mouth. Xiaogang more police more prone to Mana convection of the Niger Ebara of Japan had a variety of octanol (cH,, oa) and decanol (c. H. On) the surface tension and interfacial tension 50LiBr solution were determined , the measured results in Table 1. j] _J]] ... Three Three Qiu m women who stare [uuu [
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