Overall energy, exergy and carbon credit analysis of N partially covered Photovoltaic Thermal (PVT) concentrating collector connected in series

A new hybrid solar dryer was designed and constructed in this study, which consisted of a flat-plate solar collector with dual-function (DF-FPSC), drying chamber with glass, fan etc. The DF-FPSC was firstly applied in drying agricultural products. The innovative application of hybrid solar dryer can control the drying chamber air temperature within a suitable range by different operation strategies. Drying experiments for lemon slices in the hybrid solar dryer were conducted by comparing open sun drying (OSD). Eight mathematical models of drying characteristics were employed to select the most suitable model for describing the drying curves of lemon slices. Furthermore, energy, exergy economic and environment (4E) analysis were also adopted to analyze the drying process of lemon slices. The results show that under the same experimental condition, the drying capability of the hybrid solar dryer was stronger than that of OSD. Meanwhile, it was found that the Two term and Wang and Singh models were the most suitable for fitting the lemon slices’ drying characteristics inside the hybrid solar dryer. The drying chamber air temperature can be controlled under about 60 °C during the process of lemon slices’ drying. The experimental results show the feasibility and validity of the proposed hybrid solar dryer.

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“…In the drying process, the CO 2 reductions per batch based on results of this experiment can be calculated as follows [43]:…”

Section: Environmental Analysismentioning

confidence: 99%

Mathematical Modeling and Performance Analysis of a New Hybrid Solar Dryer of Lemon Slices for Controlling Drying Temperature

Hao

Liu

et al. 2020

Energies

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“…In another study, the average CO2 equivalent density for electricity production from coal was stated as 960 g CO2/kWh [31]. Indeed, this rate will be 2.08 kg CO2/kWh, considering 40% transmission and distribution losses and 20% losses due to insufficient electrical appliances used [32]. Therefore, CO2 reduction for refrigerant system is given in Eq.…”

Section: Environmental Analysismentioning

confidence: 99%

Experimental Assessment of Comparative R290vs. R449a Refrigerants by Using 3e (Energy, Exergy and Environment) Analysis: A Supermarket Application

Arslan

Koşan

Aktaş

et al. 2021

Journal of Thermal Engineering

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Efficiency is becoming an increasingly important issue in cooling systems. It is important to use micro channel heat exchangers in order to increase the cooling system efficiency. In this study, performance analysis of refrigerants used in supermarkets was tested experimentally. Thermodynamic analyses of the refrigerants were examined. The compatibility of R290 and R449A refrigerants with the environment has been experimentally observed. Energy, exergy, and environmental analyses were performed using R290 and R449a refrigerants based on the test results for 24 hours using double inlet and double outlet evaporator. Accordingly, in the experiments using R290, the exergy efficiency and COP value are 43.52 % and 2.09, respectively. In experiments using R449A, these values were found to be 22.28 % and 1.59. Exergy efficiency was increased by 48.81 % in experiments using propane. In addition, an increase of 24.12% was observed in the Coefficient of Performance (COP) value. Considering the environmental analysis results, the amount of CO2 emitted by the R290 refrigerant to the atmosphere during the test period was 3.14 kg/h and R449A was calculated as 3.97 kg/h. It was seen in this study that the R290 refrigerant emits 26.22 % less CO2 to the atmosphere.

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“…Thus, it is vital for India to obtain energy security by switching from the non-renewable energy, i.e. coal and crude oil to renewable energy without affecting the growing economy (Tripathi et al , 2016). According to IEA, India requires 600–1,200 GW new electricity capacity by 2050 (Khare et al , 2013), necessitating at least 135 billion US dollars for providing universal electricity access to its every citizen.…”

Section: Green Energy Sector In Indiamentioning

confidence: 99%

Green energy management in India for environmental benchmarking: from concept to practice

Sangroya

Kabra

Joshi

et al. 2020

MEQ

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PurposeThis study examines various aspects of green energy management operations in India and reports the current state, potential avenues and barriers for green energy management.Design/methodology/approachThis study performs an extensive literature review and covers the several aspects of green energy management operations.FindingsThe findings report the current state of various aspects of green energy management operations such as: procurement, manufacturing and distribution and provides the viable business models. It further explains the various facilitators and barriers of green energy management and reports the opportunities and challenges that exist in developing and managing green energy supply chain.Originality/valueThe study is pioneer in providing a comprehensive view of developing and managing green energy operations in India. The study is useful to various organisations on drafting strategies to effectively adopt and manage green energy. The study is also useful in policy formulation for promoting green energy use. This article also set as a base for future researchers working in the area of green energy.

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Overall energy, exergy and carbon credit analysis of N partially covered Photovoltaic Thermal (PVT) concentrating collector connected in series

Cited by 134 publications

References 24 publications

Mathematical Modeling and Performance Analysis of a New Hybrid Solar Dryer of Lemon Slices for Controlling Drying Temperature

Mathematical Modeling and Performance Analysis of a New Hybrid Solar Dryer of Lemon Slices for Controlling Drying Temperature

Experimental Assessment of Comparative R290vs. R449a Refrigerants by Using 3e (Energy, Exergy and Environment) Analysis: A Supermarket Application

Green energy management in India for environmental benchmarking: from concept to practice

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