Energy and exergy analyses of various typical solar energy applications: A comprehensive review

Sansaniwal, Sunil Kumar; Sharma, Vashimant; Mathur, Jyotirmay

doi:10.1016/j.rser.2017.07.003

Cited by 236 publications

(73 citation statements)

References 151 publications

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“…A theoretical analysis was performed to investigate the exergetic efficiency of single pass SAHs with fins and baffles by Sabzpooshani et al, 16 and it was concluded that the exergetic efficiency was directly proportional to the air flow rate and the irradiance intensity. Review papers of numerical and experimental studies of the energy and exergy efficiencies of SAHs have been presented by Oztop et al, 17 Kalogirou et al, 18 and Sansaniwal et al 19 The thermal performance of different SAH systems was investigated in term of the first and second laws of thermodynamics by Bahrehmand and Ameri, 20 and they reported that the absorber plate temperature for a double glass cover was greater than that of an absorber plate with a single glass cover. An experimental test was carried out by Edalatpour et al 21 to evaluate the energetic and exergetic performance of an SAH with a double glass cover.…”

Section: Introductionmentioning

confidence: 99%

Analysis of exergetic performance for a solar air heater with metal foam fins

2020

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In this experimental study, an exergetic analysis is presented for solar air heaters (SAHs) that have absorber plates equipped with different fin arrangements. The following two types of fins were used: solid fins (conventional) and metal foam fins. Longitudinal, staggered, and corrugated fin arrangements in SAHs were investigated under the weather conditions experienced in Baghdad, Iraq in February to April 2018. The exergy efficiency and exergy loss of the SAHs were evaluated for five air mass flow rates ranging from 0.011 to 0.059 kg/s. Based on the exergy analysis, SAHs with metal foam fins are more efficient than those with solid fins. In addition, corrugated metal foam fins introduce more turbulent flow than the other fin configurations. It was found that the exergy loss and the exergy efficiency were directly proportional to the values of solar irradiance and air mass flow rates. At solar noon, the maximum values for exergy change were 127 and 89 W/m2 for air mass flow rates of 0.011 and 0.059 kg/s, respectively.

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Section: Introductionmentioning

confidence: 99%

Analysis of exergetic performance for a solar air heater with metal foam fins

2020

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“…For that, the utilization of renewable energy becomes a political duty and not a strategic choice to solve energy problems. Among these renewable resources used is the solar energy: Sunil Kumar [11] published a review as a synthetic fruit of studies done on energy analysis. He presented the various solar energy systems used in solar drying [12,13], solar air conditioning [14,15], solar refrigeration [16], solar water heating [17], and solar cooking [18].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a New Combined Organic Rankine Cycle and Vapor Compression Cogeneration and Tri-Generation and Water Desalination

Toujani¹,

Bouaziz²,

Kairouani³

2020

Electrodialysis

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The new ORC-VCC combined system is analyzed. It is a new system that can be operated in four modes depending on the type of energy. The novelty of the system appears essentially in the development of new ORC-VCC combination architecture, the lowering of the condensation temperature, the possibility of cold production by the ORC cycle affected by the pumping phase, preheating of fluid cycle using the VCC cycle fluid, and new configurations based on the integration of heat recovery systems to improve overall system performance. In addition, each installation mode has several configurations depending on the recovery points that will be integrated later, besides its adaptation to any energy source, where we can use biomass, solar, and heat rejects of industry at low temperatures (60-130°C). This system can produce under and above zero temperature. Although, due to its architecture, it is also characterized by many combination of selection fluid for the ORC and VCC cycles, it is not necessary to have the same working fluid as in the classic systems. In this study, three configurations are examined and studied in terms of energy efficiency mainly the performance of each configuration including net power, refrigeration capacity and overall efficiency, the thermal efficiency for ORC.

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“…Solar energy is a renewable source that is clean, inexhaustible, and allows for local energy independence [9]. The total energy production from the sun is 3.8 × 1020 MW, equivalent to 63 MW/m2 of solar surface; only a small fraction, 1.7 × 1014 kW, of the total emitted radiation is captured by the Earth [10]. Although it is estimated that even with this tiny portion, 30 min of solar radiation reaching the Earth is equal to the worldwide energy requirement for a year [11].…”

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confidence: 99%

A Simplified Method to Avoid Shadows at Parabolic-Trough Solar Collectors Facilities

2020

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Renewable energy today is no longer just an affordable alternative, but a requirement for mitigating global environmental problems such as climate change. Among renewable energies, the use of solar energy is one of the most widespread. Concentrating Solar Power (CSP) systems, however, is not yet fully widespread despite having demonstrated great efficiency, mainly thanks to parabolic-trough collector (PTC) technology, both on a large scale and on a small scale for heating water in industry. One of the main drawbacks to this energy solution is the large size of the facilities. For this purpose, several models have been developed to avoid shadowing between the PTC lines as much as possible. In this study, the classic shadowing models between the PTC rows are reviewed. One of the major challenges is that they are studied geometrically as a fixed installation, while they are moving facilities, as they have a tracking movement of the sun. In this work, a new model is proposed to avoid shadowing by taking into account the movement of the facilities depending on their latitude. Secondly, the model is tested to an existing facility as a real case study located in southern Spain. The model is applied to the main existing installations in the northern hemisphere, thus showing the usefulness of the model for any PTC installation in the world. The shadow projected by a standard, the PTC (S) has been obtained by means of a polynomial approximation as a function of the latitude (Lat) given by S = 0.001 − Lat2 + 0.0121 − Lat + 10.9 with R2 of 99.8%. Finally, the model has been simplified to obtain in the standard case the shadows in the running time of a PTC facility.

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Energy and exergy analyses of various typical solar energy applications: A comprehensive review

Cited by 236 publications

References 151 publications

Analysis of exergetic performance for a solar air heater with metal foam fins

Analysis of exergetic performance for a solar air heater with metal foam fins

Performance Analysis of a New Combined Organic Rankine Cycle and Vapor Compression Cogeneration and Tri-Generation and Water Desalination

A Simplified Method to Avoid Shadows at Parabolic-Trough Solar Collectors Facilities

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