Improving performance of household refrigerators by incorporating phase change materials

Yusufoğlu, Yusuf; Apaydin, T.; Yılmaz, Seda Nur; Paksoy, Halime

doi:10.1016/j.ijrefrig.2015.04.020

Cited by 76 publications

(21 citation statements)

References 8 publications

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“…where PCMs are placed on the evaporator, the freezer internal wall surface and the condenser heat dissipation tubes. [30][31][32] A condenser in a domestic refrigerator is a heat exchanger which is utilised to reject heat of compression to the ambient air and the more heat removed from the condenser, the better refrigeration cycle achieved. Incorporation of PCM into the condenser enhances the heat transfer by the extending of the heat rejection process to the compressor off time, resulting in a lower temperature in the condenser.…”

Section: Domestic Refrigeratorsmentioning

confidence: 99%

“…The energy saving effect of PCMs integrated in the evaporator was investigated by Yusufoglu et al [31], by testing three alternative PCMs with melting points of -2.5°C, -3.6°C, and -4.4°C, respectively, on two types of conventional refrigerators. It was found that the best energy saving effects were 8.8% and 9.4%, respectively.…”

Section: Domestic Refrigeratorsmentioning

confidence: 99%

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A review of the applications of phase change materials in cooling, heating and power generation in different temperature ranges

et al. 2018

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Latent heat thermal energy storage is an attractive technique as it can provide higher energy storage density than conventional heat energy storage systems and has the capability to store heat of fusion at a constant (or a near constant) temperature corresponding to the phase transition temperature of the phase change material (PCM). This paper provides a state-of-theart review on phase change materials (PCMs) and their applications for heating, cooling and electricity generation according to their working temperature ranges from (-20℃ to +200℃). Four working temperature ranges are considered in this review: 1) the low temperature range from (-20℃ to +5℃) where the PCMs are typically used for domestic and commercial refrigeration; 2) the medium low temperature range from (+5℃ to +40℃) where the PCMs are typically applied for heating and cooling applications in buildings; 3) the medium temperature range for solar based heating, hot water and electronic applications from (+40℃ to +80℃); and 4) the high temperature range from (+80℃ to +200℃) for absorption cooling, waste heat recovery and electricity generation. Different types of phase change materials applied to each temperature range are reviewed and discussed, in terms of the performance, heat transfer enhancement technique, environmental impact and economic analysis. The review shows that, energy saving of up to 12% can be achieved and a reduction of cooling load of up to 80% can be obtained by PCMs in the low to medium-low temperature range. PCM storage for heating applications can improve operation efficiency from 26% to 66%, depending on specific applications. Solar thermal direct steam generation (DSG) is the most common electricity generation application coupled with PCM storage systems in the high temperature range, due to the capability of PCMs to store and deliver energy at a given constant temperature. The recommendations for future research are also presented which provide insights about where the current research is heading and highlights the challenges that remain to be resolved.

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Section: Domestic Refrigeratorsmentioning

confidence: 99%

Section: Domestic Refrigeratorsmentioning

confidence: 99%

A review of the applications of phase change materials in cooling, heating and power generation in different temperature ranges

et al. 2018

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“…In our previous review (James and others ), we found that few studies have been published on the temperature performance of domestic refrigerators under controlled conditions, a few more studies have been published since our review in 2008. More data measured under controlled conditions can be found on energy consumption (Dlugoszewski and Minczewski ; Hermes and Melo ; Hermes and others ), evaporator coil design (Karpinski ), improving performance by incorporating phase change materials (Khan and Afroz ; Yusufoglu and others ), and the shelf‐life advantages to be gained with product stored in a special refrigerator containing a 0 °C chamber with fan air circulation (Olsson ). The standard for domestic refrigerators (EN 62552:2013) contains some temperature tests that are carried out under controlled conditions on empty, closed refrigerators.…”

Section: Temperatures In Domestic Refrigeratorsmentioning

confidence: 99%

The Use and Performance of Household Refrigerators: A Review

James

Onarinde

James

2016

Comp Rev Food Sci Food Safe

115

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The domestic refrigerator is now a common household device with very few households in the developed world not possessing 1, or more, for the storage of chilled foods. Domestic storage is the last, and in many respects the most important, link in the food chill chain. Inadequate domestic refrigeration or cooling is frequently cited as a factor in incidents of food poisoning. The authors reviewed the temperature performance of refrigerators in 2008. This new review builds on that review, covering studies that have been published since (and those that were unfortunately missed in the first review), and also seeks to put this important stage of the food cold chain in its context. It is clear from the published data that many refrigerators throughout the world are running at higher than recommended temperatures. It is also clear that, despite improvements in energy use, the temperature performance and use of refrigerators have not changed significantly in the last 40 or so years. Many householders still remain unaware of the recommended refrigeration temperature range, how to ensure that the correct refrigeration temperature range is achieved, the importance of monitoring that it is being maintained, and the potential hazards of temperature abuse.

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“…The cold air is passed outside the bundle of tubes which contain coolant in which energy transfer takes place so the air is cooled and evaporating the refrigerant by gaining latent heat. The refrigerant vapour is sucked by compressor and it is condensed while passing through condenser, where it is cooled [1,2]. Then the refrigerant is passed through expansion valve and the pressure drop occursand the refrigerant temperature is further dropped.…”

Section: Introductionmentioning

confidence: 99%

Design of Thermal Storage using Phase Change Material (PCM) for Agro Products Preservation

2019

IJRTE

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Storage and preservation of agro products are receiving significance to reduce the wastage of agricultural commodities and demand of low cost and less energy intensive sustainable methods. An efficient technique is proposed to preserve farm fresh vegetables through Phase Change Materials (PCM), with lesser electrical energy consumption. In this proposed work, atmospheric air is inducted in to chamber where it is cooled by sensible cooling by passing it through PCM. The PCM changes its phase by absorbing latent heat from the outdoor hot air.. The alternate melting and freezing cycles of typical PCM is exploited for cooling the air which is further circulated into cold storage cabinet. In order to achieve the desired cold storage cabinet temperature and humidity, the amount of air circulated and mass of PCM required is estimated through cooling load and heating load calculations. Based on these load estimates, an appropriate size of equipment’s such as fan, storage cabinet, PCM chamber and heat pipes are designed. Further, performance of the cold storage may be improved by enhancing thermal conductivity of PCM and design improvement of cold storage by the various improvements.

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Improving performance of household refrigerators by incorporating phase change materials

Cited by 76 publications

References 8 publications

A review of the applications of phase change materials in cooling, heating and power generation in different temperature ranges

A review of the applications of phase change materials in cooling, heating and power generation in different temperature ranges

The Use and Performance of Household Refrigerators: A Review

Design of Thermal Storage using Phase Change Material (PCM) for Agro Products Preservation

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