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Modeling of future refrigerants in vapour compression cycle
Citation
Menzies, JJ and Garaniya, V and Abbassi, R, Modeling of future refrigerants in vapour compression cycle, Proceedings of the 16th Annual General Assembly of the International Association of Maritime universities, 7-10 October, Opatija, Croatia, pp. 253-262. ISBN 978-953-165-116-5 (2015) [Refereed Conference Paper]
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Official URL: http://www.iamuaga2015.com/
Abstract
The refrigeration plant on a fishing vessel is one of the main contributors of
the overall energy usage of the vessel. Any increase in efficiency of the refrigeration
system will reduce the fuel consumption and can improve the overall efficiency of the
vessel. The Montreal Protocol states that all environmental impacting refrigerants must
be phased out. Therefore there is a need to find an environmentally friendly refrigerants
that meets the global legislation requirements as well as high refrigeration efficiency. The
present study investigates different refrigerants in a vapour compression refrigeration
plant for efficiency and operational cost with special consideration on environmental
impact. With the aid of simulations, the Coefficient of Performance (COP) for different
refrigerants were determined. The results showed that carbon dioxide (R-744) and
ammonia (R-717) have the highest calculated performances and therefore carbon dioxide
can be recommended as a future refrigerant. On the other side, the hydrocarbons have
the lowest COPs of 2.67, 3.01 and 2.98 for methane (R-50), ethane (R-170) and propane
(R-290) respectively. Overall, the hydrocarbons have 24.72%, 10.63% and 11.74% less
performance compared to R-134a. The safety consideration for the use of ammonia
(R-717) and carbon dioxide (R-744) showed that carbon dioxide is the preferred future
refrigerant. For new built refrigeration systems, carbon dioxide is recommended for its
low global warming potential.
Item Details
| Item Type: | Refereed Conference Paper |
|---|---|
| Keywords: | Refrigeration System, PRO\II, Future Refrigerant, Vapour Compression Cycle |
| Research Division: | Engineering |
| Research Group: | Maritime engineering |
| Research Field: | Maritime engineering not elsewhere classified |
| Objective Division: | Transport |
| Objective Group: | Environmentally sustainable transport activities |
| Objective Field: | Environmentally sustainable transport activities not elsewhere classified |
| UTAS Author: | Menzies, JJ (Mr Jacob Menzies) |
| UTAS Author: | Garaniya, V (Associate Professor Vikram Garaniya) |
| UTAS Author: | Abbassi, R (Dr Rouzbeh Abbassi) |
| ID Code: | 103595 |
| Year Published: | 2015 |
| Deposited By: | NC Maritime Engineering and Hydrodynamics |
| Deposited On: | 2015-10-19 |
| Last Modified: | 2018-04-05 |
| Downloads: | 1 View Download Statistics |
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