Share

IIR document

Comparing absorption characteristics of R134a into DMAC and DMF for a falling film horizontal tube absorber.

Number: pap. ID: 364

Author(s) : YADA K. K., HARIKRISHNAN L., TIWARI S., et al.

Summary

The present work is a comparative study of heat and mass transfer behaviour during the absorption of R134a (1, 1, 1, 2 tetrafluroethane) vapour into absorbents, DMAC (N, N-Dimethylacetamide) and DMF (N, N-Dimethylformamide). Initially, the authors have investigated the heat and mass transfer characteristics for absorption of R134a into DMF for a falling film horizontal tubular absorber by employing a two-dimensional numerical technique. The related governing equations are solved using a developed computer code in MATLAB. Then, a comparison of absorption characteristics of R134a-DMAC and R134a-DMF is made. For the mean value of operating condition considered, the R134a-DMF solution absorbs more due to higher diffusion coefficient value of DMF than DMAC. The mass transfer coefficient is observed to decrease at a steeper rate at the entrance of the first tube for both working fluids, after which gradual decrease in the mass transfer coefficient is observed further downstream.

Available documents

Format PDF

Pages: 8 p.

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Comparing absorption characteristics of R134a into DMAC and DMF for a falling film horizontal tube absorber.
  • Record ID : 30002726
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

Links


See other articles from the proceedings (569)
See the conference proceedings

Indexing