An investigation of a top-mounted domestic refrigerator

Yang, Kai; Chang, Wen-Ruey; Chen, Ing Young; Wang, Chi-Chuan

doi:10.1016/j.enconman.2010.01.016

Cited by 35 publications

(3 citation statements)

References 10 publications

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“…In this study, we examined the thermal properties of the PCM charged in a functional duct unit (FDU) to improve the constant-temperature operation effect of a refrigerator with a top-mounted freezer (TMF), which is shown in Figure 1. The air temperature measured at the outlet of the FDU (which connects the freezer to the refrigerator) ranges from −3 • C to −5 • C depending on the refrigerator temperature setting [25]. Therefore, pure water, which is most widely used as a low-temperature PCM, is not a good option for our application because it has a supercooling temperature of around −7 • C.…”

Section: Introductionmentioning

confidence: 99%

Effects of Superabsorbent Polymer Addition on the Thermal Properties of Eutectic Phase Change Material

Lee,

Park

2024

Processes

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In this study, the influence of a super absorbent polymer (SAP) addition on the thermal properties of phase change material (PCM) was investigated. It was found that adding SAP reduced the melting temperature of PCM and improved phase separation properties. While the addition of 1.0 wt% of SAP to PCMs decreased latent heat by 3 J/g to 24.4 J/g, the addition was determined to be necessary to prevent leaks from a functional duct unit (FDU) and assure product stability. The results obtained from a series of brine refrigeration tests indicate that the supercooling temperature decreased by 0.3 °C to 1.7 °C when 1.0 wt% of SAP was added to PCM. The addition of SAP to PCM appears to promote supercooling by encouraging condensation during phase change. As a result of applying SAP-added PCM to the FDU, the isothermal operation performance was improved compared to existing refrigerators.

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Section: Introductionmentioning

confidence: 99%

Effects of Superabsorbent Polymer Addition on the Thermal Properties of Eutectic Phase Change Material

Lee,

Park

2024

Processes

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“…They found that when radiation was taken into consideration in simulation, the predicted air temperatures were in good agreement with the experimental data. Yang et al [12] performed a numerical simulation of the performance of the household refrigerator. The simulations showed that the design of air duct and its locations may impose a detrimental role on the temperature uniformity within the refrigerator.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Bottom Cabinet of a Household Refrigerator

Yilmaz¹,

Erbay²,

Doğan³

2016

Journal of Thermal Engineering

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In this study, the bottom cabinet of a commercial household refrigerator is investigated numerically. The numerical model is formed in two stages. The first stage includes the fan motion, and the second stage includes the heat rejection process at the condenser. The compressor is included in the numerical model to get the accurate simulation of the real conditions. A protective lid covering the condenser and the fan is taken into consideration for both stages of the numerical solution. In the numerical analysis, the total amount of heat transfer, temperature, pressure and velocity gradients and streamlines are studied in detail. Due to the location and the design of the fan, a static fluid region occurs at the mid-section of the condenser. Therefore, the number of wires on the mid-section of the condenser tubes and the cost can be decreased. It is observed that the compressor is also cooled by the discharged air from the condenser.

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“…Additionally, they proposed some modifications in the design to improve the performance of the refrigerator. Yang et al [8], through simulations, proposed a new design of the shelves in the air outlets, achieving a better thermal profile with a reduction of temperature from 7.17 to 3.57 • C in the refrigerating compartment. Torabi et al [9] worked particularly in the freezer of a natural convection refrigerator, by means of experimentation and the use of CFD.…”

Section: Introductionmentioning

confidence: 99%

Thermal Simulation of the Fresh Food Compartment in a Domestic Refrigerator

et al. 2017

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Abstract:In the field of domestic refrigeration, it is important to look for methods that can be used to simulate, and, thus, improve the thermal behavior of the fresh food compartment. In this sense, this study proposes some methods to model the thermal behavior of this compartment when the shelves' positions are changed. Temperature measurements at specific locations in this compartment were obtained. Several shelf position combinations were performed to use three 2D interpolation methods in order to simulate the temperature mean and the temperature variance. The methods used were: Lagrange's interpolation, cubic spline interpolation and bilinear interpolation. Two validation points were chosen to verify the proposed methods. By comparing the experimental results with the computer simulations, it was possible to conclude that the method of Lagrange's interpolation provided values that were not close to the real measured values. On the other hand, it was observed that the method of bilinear interpolation offered the best results, estimating values which were very close to the actual experimental measurements. These interpolation methods were used to build color thermal graphs that can be used to find some of the most appropriate shelf position combinations in this type of refrigerator. By inspection of these thermal graphs, it can be seen that the lowest average temperature was obtained when one shelf was located at 24.5 cm while the second shelf was located at 29.5 cm measured from the top of the compartment. In the same way, it can be seen that the minimum temperature variance was obtained when only one shelf was inside the compartment and this shelf was located at 29.5 cm.

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An investigation of a top-mounted domestic refrigerator

Cited by 35 publications

References 10 publications

Effects of Superabsorbent Polymer Addition on the Thermal Properties of Eutectic Phase Change Material

Effects of Superabsorbent Polymer Addition on the Thermal Properties of Eutectic Phase Change Material

Numerical Investigation of the Bottom Cabinet of a Household Refrigerator

Thermal Simulation of the Fresh Food Compartment in a Domestic Refrigerator

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