THERMAL SCIENCE

International Scientific Journal

Seyyed Abdolreza Fazeli

,

Hossein Rezvantalab

,

Farshad Kowsary

THERMODYNAMIC ANALYSIS AND SIMULATION OF A NEW COMBINED POWER AND REFRIGERATION CYCLE USING ARTIFICIAL NEURAL NETWORK

ABSTRACT
In this study, a new combined power and refrigeration cycle is proposed, which combines the Rankine and absorption refrigeration cycles. Using a binary ammonia-water mixture as the working fluid, this combined cycle produces both power and refrigeration output simultaneously by employing only one external heat source. In order to achieve the highest possible exergy efficiency, a secondary turbine is inserted to expand the hot weak solution leaving the boiler. Moreover, an artificial neural network (ANN) is used to simulate the thermodynamic properties and the relationship between the input thermodynamic variables on the cycle performance. It is shown that turbine inlet pressure, as well as heat source and refrigeration temperatures have significant effects on the net power output, refrigeration output and exergy efficiency of the combined cycle. In addition, the results of ANN are in excellent agreement with the mathematical simulation and cover a wider range for evaluation of cycle performance.
KEYWORDS
combined cycle, Ammonia water, exergy efficiency, Artificial Neural Network
PAPER SUBMITTED: 2010-11-02
PAPER REVISED: 2010-12-18
PAPER ACCEPTED: 2010-12-23
DOI REFERENCE: https://doi.org/10.2298/TSCI101102009F
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2011, VOLUME 15, ISSUE Issue 1, PAGES [29 - 41]
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Thermodynamic analysis and simulation of a new combined power and refrigeration cycle using artificial neural network

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