SciELO - Scientific Electronic Library Online

 
vol.27 issue47Thermal transfer analysis of tubes with extended surface with fractal designSimulation of o biogas cleaning process using different amines author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista Facultad de Ingeniería

Print version ISSN 0121-1129

Abstract

CELY-NINO, Víctor Hugo; CIFUENTES-AYA, Héctor  and  TORRE-MARIN, Gemma Cervantes. Rational efficiency in agro-industrial process with cold chain: Thermodynamic and exergoeconomic measurement. Rev. Fac. ing. [online]. 2018, vol.27, n.47, pp.39-49. ISSN 0121-1129.  http://dx.doi.org/10.19053/01211129.v27.n47.2018.7750.

The cold chain is the succession of links such as pre-cooling, refrigeration, freezing, and refrigerated transport. The physical variables of the heat transfer process are temperature control, relative humidity, dew point, and cooling surface. This paper aims at highlighting the use of thermodynamic tools such as exergy, anergy and entropy to measure rational efficiency in the different equipment and flows of a thermal process, through a transversal methodology that quantifies efficiencies in a relative, absolute, and comparative way. This study focused on the production structure of the agro-industrial cold chain by steam compression (refrigerant R404A), for the meat processing in channel, in the "Rastro Frigorífico Servicios Integrales del Bajío-TIF 333" in the city of Leon-Guanajuato, central region of Mexico. The results from the literature allowed to classify the critical points of greater exergy destruction, and the unproductive teams responsible for inefficiencies and residues production, which impact the hidden cost structure of the process, and affect negatively the process sustainability. This work integrates the thermoeconomic and productivity concepts that direct the nonlinear learning of thermodynamic science, relevant in the formation of an engineer.

Keywords : cold chain; hidden costs; productivity efficiency; thermal irreversibility.

        · abstract in Spanish | Portuguese     · text in English     · English ( pdf )