Parametric modeling and simulation of photovoltaic panels with earth water heat exchanger cooling

Jakhar, Sanjeev; Soni, Manoj Kumar; Gakkhar, Nikhil

doi:10.1186/s40517-016-0054-8

Cited by 14 publications

(10 citation statements)

References 26 publications

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“…The chamber combustion efficiency ( η ) is set as 0.99, the calculation method of flue gas flow rate ( G f ) is shown in Equation (), and the air flow rate ( G a ) required for fuel combustion is listed in Equation () 15–17

{G}_{f}=\frac{{W}_{{net}}\times {\rho }_{{LHV}}}{\eta \times {Q}_{{LHV}}}\times 3600,

{G}_{a}=\alpha {L}_{0}{G}_{f},

where W net represents the net power.…”

Section: Methodsmentioning

confidence: 99%

“…The chamber combustion efficiency (η) is set as 0.99, the calculation method of flue gas flow rate (G f ) is shown in Equation ( 4), and the air flow rate (G a ) required for fuel combustion is listed in Equation ( 5). [15][16][17]…”

Section: Biomass Combustion Power Generation Efficiencymentioning

confidence: 99%

“…The calculation formula of power generation efficiency (η t ) of the biomass combustion power generation system is shown in Equation ( 8). [15][16][17] F I G U R E 3 Schematic diagram of equipment for water electrolysis experiment. DC, direct current; PEM, proton exchange membrane.…”

Section: Biomass Combustion Power Generation Efficiencymentioning

confidence: 99%

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Research on low‐carbon system of biomass combustion and solar‐energy power generation based on MP‐PIC simulation

Cui,

Wang

2024

Energy Science & Engineering

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To vigorously reduce CO2 emission in the energy sector is an inevitable choice to achieve world's carbon emission reduction and to accelerate the construction of a modern energy system. The development of CO2 capture, utilization, and storage technology (CCUS) is of great significance for promoting low carbon utilization of traditional energy and realizing the low carbon transformation of coal power industry. The joint development of biomass combustion integrated with new energy technology and consideration of fuel conversion CO2 capture from the source is a technical solution with high efficiency and low energy consumption in coordination, which will bring new development opportunities for conventional thermal power industry. In this study, a low carbon system of collaborative renewable energy CO2 source capture is constructed. Numerical simulation method of multiphase flow coupled with thermal mass transfer and chemical reaction of the combustion mathematical model is employed to study the combustion characteristics in the biomass combustion system. The combustion efficiency, carbon conversion, and pollutant emissions are calculated compared with the conventional coal combustion system. Hydrogen production and CO2 emissions are analyzed based on life cycle assessment method. The energy integration full‐chain system of geological storage and CCUS is optimized, which is committed to achieving nearly zero carbon emission in the thermal power industry, contributing to the global low CO2 emission work.

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{G}_{f}=\frac{{W}_{{net}}\times {\rho }_{{LHV}}}{\eta \times {Q}_{{LHV}}}\times 3600,

{G}_{a}=\alpha {L}_{0}{G}_{f},

where W net represents the net power.…”

Section: Methodsmentioning

confidence: 99%

Section: Biomass Combustion Power Generation Efficiencymentioning

confidence: 99%

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Research on low‐carbon system of biomass combustion and solar‐energy power generation based on MP‐PIC simulation

Cui,

Wang

2024

Energy Science & Engineering

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“…Two types of cooling methods are used to increase the efficiency of PV modules. Energy consuming (active) cooling is natural energy consuming (passive) cooling [18]. PCM (phase changing material) can be used on the surface to keep the PV module temperature at 25°C.…”

Section: Introductionmentioning

confidence: 99%

Effect of module operating temperature on module efficiency in photovoltaic modules and recovery of photovoltaic module heat by thermoelectric effect

KAYABAŞI1

Kaya

2023

Journal of Thermal Engineering

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One of the parameters affecting the efficiency of photovoltaic (PV) modules and PV systems is the temperature. The factors that increase the temperature in PV modules cause loss of efficiency. In this study, experiments have been conducted with the aim of re ducing the module temperature. For this purpose, four polycrystalline and four monocrystalline PV modules, all with the same features, were used. A pair of polycrystalline and monocrystalline modules were used as reference modules. The aim of this study is to reduce the operating temperature of the modules, while also decreasing the transient temperature fluctuations in the system, in order to prevent the loss of efficiency. For this reason, current, voltage and power values of PV modules have been examined and the relationship between these values and module temperature has been explained. As a result, temperature values were measured at 30-80°C in reference modules, 30-50°C in heat pipe modules, 30-37°C in modules using heat pipes and phase-changing material, and 30-66°C in modules using phase-changing material with flexible surfaces. If the PV module operating temperature is increased by 35°C, the module efficiency decreases by 10%. Heat pipe and PCM balance the temperature in PV/T/PCM monocrystalline and polycrystalline modules. In PV/T/PCM modules, efficiency loss caused by temperature increase is 1%. In addition, electrical energy is produced from the heat accumulated on the surface of the PV module by means of Thermoelectric Generator (TEG). When the temperature difference between the surfaces is 15°C, the naturally cooled TE provides 0.45V energy output, while the forced-cooled TEG provides 0.97V energy output. As the temperature gap between the surfaces increases, the voltage and current values of the TEG also increase. Briefly, TEG’s power values increase up to 5W depending on the temperature gap between surfaces.

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“…Generally, there are two types of cooling: active cooling, which consumes energy (pump, fan, etc.) and passive cooling, which uses natural convection/conduction to enable heat extraction [3]. Most cooling methods are based on active water and air cooling, as these are the simplest techniques.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of efficiency of solar panel by phase change material cooling

Wei

Nan

Cheng

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The dependence of efficiency of photovoltaic panels on their temperature during operation is a major concern for developers and users. In this paper, a phase change material (PCM) cooling system was designed for a 60W mono-crystalline solar panel. Tealights candle was selected as the cooling medium. The solar irradiance was recorded using Kipp & Zonen CMP3 pyranometer and Meteon data logger. Temperature distribution on the surface of solar panel, output voltage and output current of solar panel were measured. The average irradiance throughout data collection was found to be 705W/m 2 and highest irradiance was 1100 W/m 2 . The average solar panel temperature was 43.6º C and a maximum temperature of 53º C was at the center of solar panel. Results showed that average power output and efficiency of the solar panel were 44.4W and 15%, respectively. It was found that the higher the solar irradiance, the lower the efficiency of solar panel and the higher the temperature and power output of solar panel. This is due to the fact that high irradiance results in high power input and high solar panel temperature. But high PV panel temperature reduces its power output. Therefore, the increase of power input outweighs that of power output, which leads to the decrease of efficiency of solar panel with the increase of solar irradiance. Compared with solar panel without cooling, the power output and efficiency of solar panel did not increase with PCM cooling. It indicates that Tealights candle as PCM cooling is not efficient in improving the efficiency of solar panel in this study.

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Parametric modeling and simulation of photovoltaic panels with earth water heat exchanger cooling

Cited by 14 publications

References 26 publications

Research on low‐carbon system of biomass combustion and solar‐energy power generation based on MP‐PIC simulation

Research on low‐carbon system of biomass combustion and solar‐energy power generation based on MP‐PIC simulation

Effect of module operating temperature on module efficiency in photovoltaic modules and recovery of photovoltaic module heat by thermoelectric effect

Experimental study of efficiency of solar panel by phase change material cooling

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