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Journal of Industrial Mathematics
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  This is an Open Access Journal Open Access journal
   ISSN (Print) 2314-8853 - ISSN (Online) 2314-6117
   Published by Hindawi Homepage  [292 journals]
  • Automatic and Noninvasive Indoor Air Quality Control in HVAC Systems

    • Abstract: This paper presents a methodology for assessing and monitoring the cleaning state of a heating, ventilation, and air conditioning (HVAC) system of a building. It consists of a noninvasive method for measuring the amount of dust in the whole ventilation system, that is, the set of filters and air ducts. Specifically, it defines the minimum amount of measurements, their time table, locations, and acquisition conditions. The proposed method promotes early intervention on the system and it guarantees high indoor air quality and proper HVAC working conditions. The effectiveness of the method is proved by some experimental results on different study cases.
      PubDate: Thu, 30 Jun 2016 12:44:07 +000
  • Entropy Analysis for MHD Generalised Couette Flow in a Composite Duct

    • Abstract: This paper presents entropy analysis of electrically conducting Newtonian fluid flow inside a horizontal composite duct. The upper impermeable wall of the duct moves with a uniform velocity while the lower wall is porous strata of finite thickness with impermeable bottom. The upper wall and the impermeable bottom are at constant temperature but at different temperatures. The duct is divided into two regions: Region I of clear fluid and Region II of fluid saturated porous layer. Momentum and thermal regimes for clear and porous regions are matched at clear fluid-porous interface by employing suitable matching conditions. The governing equations are solved analytically. Analytical solutions obtained for velocity and temperature are utilized to compute entropy generation. The effects of pertinent parameter on temperature distribution, entropy generation, and Bejan number are portrayed graphically and discussed.
      PubDate: Wed, 04 Mar 2015 14:02:20 +000
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