Exergy analysis of a solar PV driven DC refrigerator for different ambient conditions

Sidney, Shaji; Lal, D. Mohan

doi:10.1109/iceets.2016.7582941

Cited by 10 publications

(5 citation statements)

References 6 publications

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“…The ARIMA model's biggest strengths are its elegance and simplicity. It is only possible to employ stationary time series [14,18,19]. In order to test the ARIMA model's applicability, we employ data from seasonal time series as well as non-stationary data that become fixed data.…”

Section: Figure 12 Forecasting Methodologiesmentioning

confidence: 99%

Design Simulation and Review of Solar PV Power Forecasting Using Computing Techniques

Kumar¹

2022

IJRMEE

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The field of renewable energies provides solutions to the sustainable energy challenges of developing countries. Various renewable energy options are used to solve the power shortage in India. In recent years, power generation has increased significantly, but the market is promising for domestic organisations, distribution networks and transmission networks, and the financial situation is sluggish and influential. India has 450,000 kilowatts of hydroelectric power, has an installed wind power capacity of 230,000 kilowatts, but has almost no great potential for renewable energy. However, India is currently very high in this region, 2022 (not including large hydropower), the target is to raise the current installed capacity from 37 GW of renewable energy to 1.75 million kilowatts. Solar energy is a key part of the government’s extension policy. The demonstration of solar PV Systems is highly advantageous for geography and structure. For efficient structure, we need effective design and forecasting tools. PV system is a popular tool to optimise and schedule the design and construction of independent photovoltaic solar systems connected to the grid. The objective of this research is to introduce the equivalent design model of the photo voltaic solar power plant and to analyses the impact of power forecasting on performance assessment of solar photo voltaic system. Mathematical model of solar photovoltaic system has been implemented using and performance is analysed using PV and IV characteristics of solar photovoltaic system. Modified prediction technique was implemented for optimum forecasting in the specified scenario of complex operating condition.

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Section: Figure 12 Forecasting Methodologiesmentioning

confidence: 99%

Design Simulation and Review of Solar PV Power Forecasting Using Computing Techniques

Kumar¹

2022

IJRMEE

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“…Thus, DC compressors consume less power and eliminate the need for DC-AC converters. Previous studies have also recommended the use of DC compressors for solar PV refrigeration systems (Torres-Toledo et al 2016;Sidney and Mohan 2016;Daffallaha 2018;Li et al 2021) A major drawback of solar PV systems is the frequent failure of batteries used to store energy. The experimental results of Fezai et al (2021) elucidated that the battery bank of these systems plays a major role in their reliability and life cycle cost.…”

Section: Introductionmentioning

confidence: 99%

A novel solar-powered milk cooling refrigeration unit with cold thermal energy storage for rural application

Sidney¹,

Prabakaran

Kim

et al. 2021

Environ Sci Pollut Res

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This experimental study analyzed the use of solar photovoltaic energy for operating a novel twin-circuit DC milk chiller without batteries using water-based cold thermal energy storage for different seasons in Chennai, India. HFC-134a and HC-600a were used as refrigerants in the two individual circuits. For each season, the test was conducted continuously for 18 days to analyze the quantity of generated ice that could be utilized to chill 10 L of milk in the morning and in the evening. The average quantity of ice formed per day in the ice bank during monsoon, winter, and summer seasons was found to be 3.61, 19.75, and 27.97 kg, respectively. Thus, it is evident that the use of solar energy with thermal energy storage is effective for operating the milk chilling unit for two seasons, namely winter and summer. However, the system requires an additional power source for continuous operation during the monsoon season. In this study, solar photovoltaic power was observed to be a good choice for chilling milk in the context of global warming and energy consumption. The use of thermal energy storage also allows the initial cost to be reduced.

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“…The introduction of DC compressors facilitates the direct utilization of green energy without inverters. 5–10 The operation of solar photovoltaic refrigerators with battery backup has been a hindrance for large scale usage due to bulky array of batteries, frequent battery failure resulting in replacement and disposal related problems. Axaopoulos et al.…”

Section: Introductionmentioning

confidence: 99%

“…20 Sidney et al. 10 performed exergy analysis on a bottle cooler run by a DC compressor with HC-600a refrigerant for different ambient temperatures. The maximum exergetic destruction was observed in the compressor followed by the evaporator, then the condenser and finally the expansion device.…”

Section: Introductionmentioning

confidence: 99%

Charge optimisation of a solar milk chiller with direct current compressors

Sidney

Prabakaran

Lal

2020

Proceedings of the Institution of Mechanical Engineers, Part E:

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In view of promoting the utilization of solar photo-voltaic energy for milk chilling application a custom designed milk chiller with DC compressors was fabricated. Two different DC compressors were used operating with HFC-134a and HC-600a refrigerants to ascertain the performance of HFC and HC refrigerants when used in solar powered application. In view of optimizing the performance of both refrigerants, charge optimization was experimentally carried out for both refrigerant circuits. The optimum charge was obtained based on the maximum coefficient of performance and exergy efficiency. When comparing ice formation and coefficient of performance, the HC-600a refrigerant circuit was lower than that of HFC-134a circuit. It was also observed that the total exergy destruction experienced was maximum in the HFC-134a circuit than that of the HC-600a circuit. The magnitude of exergy destruction was found to be maximum in the compressor and then followed by the condenser, evaporator and finally the capillary for both refrigeration circuits. This study showed an efficient way for using the solar power for operating a milk chiller with DC compressors and with ice bank tank to avoid the dependency on batteries.

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Exergy analysis of a solar PV driven DC refrigerator for different ambient conditions

Cited by 10 publications

References 6 publications

Design Simulation and Review of Solar PV Power Forecasting Using Computing Techniques

Design Simulation and Review of Solar PV Power Forecasting Using Computing Techniques

A novel solar-powered milk cooling refrigeration unit with cold thermal energy storage for rural application

Charge optimisation of a solar milk chiller with direct current compressors

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