Browsing by Author "Sarria B."

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Exergy study of air-conditioned space of a prototype scale of a river vessel room
(American Society of Mechanical Engineers (ASME), 2016) Fajardo Cuadro, Juan Gabriel; Guerra M.A.; Sarria B.; Cruz O.
The study was conducted on a scale prototype, which simulates one of the rooms in the real vessel air conditioning system. The main results are as follows: the higher the thermal load, the higher the exergy destruction, and increasing the average temperature in the room increases the exergetic efficiency and reduces the exergy destruction. There is an optimal thermal load per unit area of 214.074 W/m2. The highest exergetic efficiencies and lowest values of the exergy destruction indices occur when the average temperature of the room is in the comfort range recommended by ASHRAE, from 22 to 24°C. Copyright © 2016 by ASME.
Thermoeconomic analysis of pvc production plant reactors cooling system
(American Society of Mechanical Engineers (ASME), 2017) Fajardo Cuadro, Juan Gabriel; Sarria B.; Padron J.; Barreto D.
In this work the results of the research made to PVC production plant reactors cooling system are included. The heat generated in the reactor must be removed to maintain its temperature at an optimal range between 50 and 70 °C. To assess the cooling system exergetic and Thermoeconomic indicators were used and it was observed that: (i) The greatest exergetic efficiencies arise in compressors. (ii) The greatest destruction of exergy and reasons of destruction of exergy cost and lower exergoeconomic factors are presented in the evaporative condenser. (iii) The heat exchange equipment has highest relative cost differences. © 2018 ASME.
Thermoeconomic analysis of wheat flour agroindustrial plant
(American Society of Mechanical Engineers (ASME), 2015) Fajardo Cuadro, Juan Gabriel; Castellon L.; Sarria B.; Barreto D.
This paper presents the development of an exergy and thermoeconomic analysis of a wheat flour agro-industrial plant, which was aimed to evaluate the energy use and establish the operation cost of its components, and to understand the cost formation process and the cost flow. It was found that throughout the production process exists an exergy destruction ratio of 95,08 %. It identified improvement opportunities in relation to cost, has recommended alterations with regard matter flows or an economic investment for change some components with low exergoeconomic factors: 2% planer of wheat bran, 3% knurled roller grinding benches and 5% smooth roller grinding benches. Copyright © 2015 by ASME.
Thermoeconomic indicators ofair conditioning in a river ship to change the configuration of their thermal insulation
(American Society of Mechanical Engineers (ASME), 2014) Fajardo Cuadro, Juan Gabriel; Sarria B.; Alvarez Guerra M.
This work has as object of study the energy of a river ship air conditioning system performance, using fiberglass, polyurethane or rockwool as insulation. Thermoeconomics Indicators based on second law of thermodynamics which take into account the quality of the energy and the cost of the exergy were used for research. It was observed that: (i) by increasing the thickness of the insulation the irreversibilities decreased, (ii) increases in the destroyed exergy increased generation of cooling load costs and (iii) costs per unit of exergy of heat load and area for the generation of cooling load and for investment in exergetic insulation, were minors for polyurethane. Copyright © 2014 by ASME.