Performance study of a domestic refrigerator powered by a photovoltaic generator

Alshqirate, Abed Alrzaq; Tarawneh, Mohammad; Hammad, M.

doi:10.3103/s0003701x15010041

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…A small refrigerator's performances were investigated by Alshqirate et al [3]. The results were satisfying and gave acceptable performance results when deep discharge batteries were used.…”

Section: Previous Workmentioning

confidence: 99%

Photovoltaic-Thermoelectric Hybrid Module for Continuously Powering a Vaccine Cooler in Niger

Adam

YESİLATA

2023

JISE

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In areas where the access to an off-grid electricity is not possible or not reliable, the transport and conservation of vaccine and medicines is not possible. Nevertheless, these areas need and have right to access medical. This need is much more critical nowadays since preservation of COVID-19 vaccines require cold-chain at some level of degree. Solar energy can be used to power the refrigerator destined to keep the medicines and vaccines cool. Even tough stand-alone PV is already used to power theses coolers, the use of a PV-TE hybrid generators could allow the improvement of the autonomy. The output power of the PV alone and the hybrid are investigated under Niger meteorological conditions. The two systems coupled with a medical cooler are investigated. The results show that the hybrid system produces considerably more power to be stored in the battery, indicating much longer autonomy.

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“…A small refrigerator's performances were investigated by Alshqirate et al [3]. The results were satisfying and gave acceptable performance results when deep discharge batteries were used.…”

Section: Previous Workmentioning

confidence: 99%

Photovoltaic-Thermoelectric Hybrid Module for Continuously Powering a Vaccine Cooler in Niger

Adam

YESİLATA

2023

JISE

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“…The maximum COP in the morning had a value of about 2.1. Alshqirate et al [ 76 ] showed that, by changing some parameters like the evaporating and condensing temperature in a domestic refrigerator, the COP was changed. By increasing the evaporating temperature, while keeping constant the condensing temperature, the COP was increased.…”

Section: Refrigeration Cycles Powered By Photovoltaicmentioning

confidence: 99%

Photovoltaic and Photovoltaic Thermal Technologies for Refrigeration Purposes: An Overview

Alsagri

2022

Arab J Sci Eng

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Refrigeration systems have a broad range of applications, playing a critical role in human life. Especially, vaccine preservation in rural regions has become more critical than in the past during the COVID19 era. In this sense, meeting the cooling process's energy need with renewable energy is critical, as the grid cannot support it. Thus, solar energy has been extensively studied for use in refrigeration cycles. Compression, absorption, adsorption, desiccant, and ejector refrigeration cycles are frequently used in this configuration. This article discusses multiple studies showing various attributes' impact on a system's overall efficiency. Most previous reviews did not cover PV with refrigeration cycles. So, this paper surveys the literature on PV-powered cooling cycles. For better classification, PV technologies are categorized into three types: PV, PVT, and CPVT. With this regard, CPVTs still have a way to progress due to a lack of studies compared to PV. The works are divided into three main sections as Exergy Studies, Experimental Studies, and Simulation and Numerical Studies. This review paper categorizes and rates refrigeration-assisted solar systems based on exergy destruction, exergy efficiency, and COP of cooling cycles. The results showed that PV panels have the highest exergy destruction in most of the systems. It is concluded that using PV technologies has a great potential to supply cooling demand, especially in a hot climate condition. Moreover, the study's findings are anticipated to aid designers in scaling up photovoltaic-based cooling systems, resulting in more efficient and sustainable designs.

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“…Although an amount of effort has been made to discuss energy expression model for complex energy-using electromechanical products, the relationship and quantitative characterization among design variables, energy and performance are still inadequate. A large number of engineering tests have to be designed to model the relationship between design variables and product performance when designing new products [35,36]. In order to ascertain how design variables impact the response of energy efficiency and performance to instantly support performance matching, energy flow element was redefined and an energy flow model based on functional basis was built.…”

Section: Introductionmentioning

confidence: 99%

Energy Flow Modelling Method of Energy Efficiency Improvement for Power-Using Electromechanical Products

Wang

Dong

2022

Energies

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As a crucial factor in the improvement of energy efficiency for power-using electromechanical products, the flow, conversion and distribution of energy are closely related to design variables of products. Simultaneously, performance is the constraint of energy efficiency and is strongly affected by design variables. In order to improve a product’s energy efficiency without compromising performance, an energy flow model with a basic energy flow element (EFE) was built on a functional basis and its modelling procedure is presented in this paper. Containing function, design variable and characteristic energy in EFEs, as well as the interface parameters between EFEs and environment, the model contributes to logically clarifying the relationship between design variables and performance. With the refrigerator as an example, the effectiveness of the energy flow model is verified by a comparison between simulation, based on an energy flow model, and experimentation. Furthermore, five critical design variables of a 265 L refrigerator were screened with the model. Test results of the improved prototype meet the requirements of operating rate and temperature uniformity, and the daily electricity consumption was reduced by about 9%. Comparison between the design results of the energy flow model and the testing results of the prototype demonstrates that the energy efficiency improvement method based on energy flow model is effective.

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Performance study of a domestic refrigerator powered by a photovoltaic generator

Cited by 8 publications

References 2 publications

Photovoltaic-Thermoelectric Hybrid Module for Continuously Powering a Vaccine Cooler in Niger

Photovoltaic-Thermoelectric Hybrid Module for Continuously Powering a Vaccine Cooler in Niger

Photovoltaic and Photovoltaic Thermal Technologies for Refrigeration Purposes: An Overview

Energy Flow Modelling Method of Energy Efficiency Improvement for Power-Using Electromechanical Products

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