Experimental Analysis of the Plate-on-Tube Evaporator on a Domestic Refrigerator’s Performance
The evaporator is the utmost important component in the refrigeration system, since it enables the refrigerant to draw heat from the desired environment, i.e. the refrigerated space. Studies are being conducted on this component which generally affects the performance of the system, where energy efficient products are important. This study was designed to enhance the effectiveness of the evaporator in the refrigeration cycle of a domestic refrigerator by adjusting the capillary tube length, refrigerant amount, and the evaporator pipe diameter to reduce energy consumption. The experiments were conducted under identical thermal and ambient conditions. Experiment data were analysed using the Design of Experiment (DOE) technique which is a six-sigma method to determine effects of parameters. As a result, it has been determined that the most important parameters affecting the evaporator performance among the selected parameters are found to be the refrigerant amount and pipe diameter. It has been determined that the minimum energy consumption is 6-mm pipe diameter and 16-g refrigerant. It has also been noted that the overall consumption of the experiment sample decreased by 16.6% with respect to the reference system, which has 7-mm pipe diameter and 18-g refrigerant.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.3300504Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 484
 G. Todorov, K. Kamberov and M. Semkov, “Thermal CFD study and improvement of table top fridge evaporator by virtual prototyping,” Case Studies in Thermal Engineering vol: 10, 2017, pp:434–442.
 S. Jin, X. Wang, X. Ma and Q. Wang, “Study on the performance of small tube diameter R290 fin-tube evaporator, Procedia Engineering vol: 205, 2017, pp:1578–1583.
 J. D. M. Jayakody, P. D. C. Kumara, H. H. E. Jayaweera, A.M. Muzathik and T. R. Ariyaratne, “The effect of tube diameter and number of tubes in a cross-flow steam condenser on performance”, 5th International Symposium 2015.
 V. Gorobets, Y. Bohdan, V. Тrokhaniak and I. Antypov, “Investigations of heat transfer and hydrodynamics in heat exchangers with compact arrangements of tubes, Applied Thermal Engineering, vol: 151, 2019, pp:46-54.
 M. Rahimi, M.J. Hosseini and M. Gorzin, “Effect of Helical Diameter on the Performance of Shell and Helical Tube Heat Exchanger: An Experimental Approach”, Sustainable Cities and Society, vol:44, 2018, pp: 691-701.