Listar por autor "Arrieta Mondragón, Leonardo"

Refrigeration systems are of great importance in industry and are widely used in food preservation or air conditioning. Studies have been carried out in recent years in search of parameters to optimise the cycle by ...

The Rankine cycle is a thermodynamic cycle widely used in power plants, specifically in steam power plants, due to its great importance in the industry. It has also been studied in recent years in search of parameters that ...

Computer-aided simulation of the energetic and exergetic efficiency of a two-stage cascade cooling cycle
...
Arrieta Mondragón, Leonardo | 2018

Refrigeration systems are of great importance in industry and are widely used in food preservation or air conditioning. Studies have been carried out in recent years in search of parameters to optimise the cycle by reducing losses, both to increase the COP and to reduce energy consumption, so that process improvements have been made from which different cycles are derived, such as the gas cooling cycle with regeneration, absorption cooling, gas liquefaction or multistage compression cooling systems. This document presents a combined refrigeration system consisting of two vapour compression refrigeration cycles linked by a heat exchanger that not only reduces the work of the compressor but also increases the amount of heat absorbed by the refrigerated space as a result of the cascade stages and improves the COP of a refrigeration system. The study was carried out under the assumption of a stationary flow, and without significant changes in the kinetic and potential energy, i.e. assuming an ideal process, carrying out several case studies with the help of UNISIM, evaluating the effect of varying the low temperature on the exergetic efficiency, the destroyed exergy of the condenser, the net input work and the COP, as well as the influence of the input pressure in the upper cycle compressor on the net input work and the COP.

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Exergetic Evaluation of a Rankine Cycle with Regeneration: Effect of Turbine Inlet Temperature and Source Temperature
...
Arrieta Mondragón, Leonardo | 2018

The Rankine cycle is a thermodynamic cycle widely used in power plants, specifically in steam power plants, due to its great importance in the industry. It has also been studied in recent years in search of parameters that can optimize the cycle by reducing losses and thus increase efficiency, so that improvements have been made in the process such as overheating of steam at the turbine inlet, and even regeneration of water at the boiler inlet. In this work a process of optimization of a Rankine cycle was presented by complementing it with an open feed water heater which not only improves the efficiency of the cycle, but also provides a convenient means of de-aeration of the feed water to prevent corrosion in the boiler, in which it was carried out under the assumption of a stationary flow, and without significant changes in the kinetic and potential energy, that is, assuming an ideal process, all this with the aim of obtaining the highest thermal efficiency and the lowest exergetic losses in the cycle, carrying out several case studies with the assistance of Unisim with temperature variations at the turbine inlet and at the source to observe how this affects the exergetic efficiency and exergy destroyed in the turbine and it was concluded that this is reflected in the production of mechanical energy useful for creating electrical energy because a variation in these parameters could cause job losses in the turbine and decrease in the exergetic efficiency of the system which in turn would lead to a decrease in the network of the system.

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Listar por autor "Arrieta Mondragón, Leonardo"

Computer-aided simulation of the energetic and exergetic efficiency of a two-stage cascade cooling cycle

Exergetic Evaluation of a Rankine Cycle with Regeneration: Effect of Turbine Inlet Temperature and Source Temperature

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Computer-aided simulation of the energetic and exergetic efficiency of a two-stage cascade cooling cycle

Exergetic Evaluation of a Rankine Cycle with Regeneration: Effect of Turbine Inlet Temperature and Source Temperature

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Listar por autor "Arrieta Mondragón, Leonardo"

Computer-aided simulation of the energetic and exergetic efficiency of a two-stage cascade cooling cycle ﻿

Exergetic Evaluation of a Rankine Cycle with Regeneration: Effect of Turbine Inlet Temperature and Source Temperature ﻿

Envíos recientes

Computer-aided simulation of the energetic and exergetic efficiency of a two-stage cascade cooling cycle

Exergetic Evaluation of a Rankine Cycle with Regeneration: Effect of Turbine Inlet Temperature and Source Temperature

Portales Institucionales

Computer-aided simulation of the energetic and exergetic efficiency of a two-stage cascade cooling cycle

Exergetic Evaluation of a Rankine Cycle with Regeneration: Effect of Turbine Inlet Temperature and Source Temperature