Nanofluid ammonia water absorption refrigeration cycle device

Abstract

The invention discloses a nanofluid ammonia water absorption refrigeration cycle device which comprises an absorber, a solution pump, a rectifier, a generator, a solution heat exchanger, a self-dispersal device, a fractional condenser, a condenser, a super-cooler and an evaporator. A concentrated solution output end of the absorber is connected with a concentrated solution input end of the rectifier through a first pipeline, a dilute solution output end of the generator is connected with a dilute solution input end of the absorber through a second pipeline, an ammonia gas output end of the fractional condenser is connected with an ammonia gas input end of the condenser, an ammonia liquor output end of the condenser is connected with an ammonia liquor input end of the evaporator through a fourth pipeline, an ammonia gas output end of the evaporator is connected with an ammonia gas input end of the super-cooler, and an ammonia gas output end of the super-cooler is connected with an ammonia gas input end of the absorber. By the aid of the refrigeration cycle device, dispersion stability of nanofluid can be effectively maintained, and agglomerated particles are selectively dispersed, so that stability and reliability of an ammonia water absorption refrigeration system with the nanofluid can be improved.

Description

technical field [0001] The invention relates to an absorption refrigeration cycle device, in particular to a nanofluid ammonia water absorption refrigeration cycle device. Background technique [0002] With the rapid development of nanomaterials science, more and more studies have shown that nanofluids not only have the advantages of improving fluid thermal conductivity, convective heat transfer and boiling heat transfer, but also have the advantages of reducing wall friction resistance and improving optical properties. The enhancement of nanofluids in heat transfer and mass transfer can be used to enhance the absorption and generation of ammonia in ammonia-water refrigeration systems. At present, there have been studies at home and abroad to apply nano-materials such as alumina, ferrous oxide, iron oxide, ferric oxide, monomeric silver, zinc ferrite, and carbon nanotubes to the ammonia water absorption system. and other methods have been carried out, and achieved relativel...

AI Technical Summary

Problems solved by technology

The existence of this part of nanoparticle aggregates will not only weaken the excellent characteristics of nanofluids, such as micro-convection, high heat and mass transfer performance, low viscosity (compared to microparticle suspensions), etc., but also during the use of nanofluids, this Part of the agglomerates may become the agglomerated adsorption core to allow more nanoparticles to be adsorbed on it, resulting in a further decrease in the dispersion stability of the nanofluid.

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