Experimental investigation of full solar spectrum utilization based on nanofluid spectral splitter for greenhouse applications

2022 ◽  
Vol 254 ◽  
pp. 115215
Author(s):  
Yu Yuan ◽  
Hui Fang ◽  
Gang Wu ◽  
Qichang Yang ◽  
Qianlei Ma ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Solar Spectrum ◽  
Spectrum Utilization

Design and experimental investigation of a novel full solar spectrum utilization system

2020 ◽  
Vol 260 ◽  
pp. 114258 ◽  
Author(s):  
Yi-Peng Zhou ◽  
Ming-Jia Li ◽  
Yi-Huang Hu ◽  
Teng Ma
Keyword(s):  
Experimental Investigation ◽  
Solar Spectrum ◽  
Spectrum Utilization

Experimental Investigation on Photothermal Properties of MWCNT-H2O Nanofluids for Direct Absorption Solar Collectors

2014 ◽  
Vol 521 ◽  
pp. 19-22
Author(s):  
Qin Bo He
Keyword(s):  
Experimental Investigation ◽  
Solar Radiation ◽  
Mass Fraction ◽  
Solar Spectrum ◽  
Energy Systems ◽  
Deionized Water ◽  
Integrating Sphere ◽  
Direct Absorption ◽  
Solar Thermal Energy ◽  
Heat Gain

Optical and photothermal properties of MWCNT-H2O nanofluids were investigated in the present work. The transmittance of nanofluids over solar spectrum (250 to 2500nm) was measured by the UV-Vis-NIR spectrophotometer based on integrating sphere principle. The photothermal properties of nanofluids were studied expose to the solar radiation. The experimental results show that the transmittance of MWCNT-H2O nanofluids is much less than that of deionized water, and decreases with increasing nanoparticle mass fraction. The highest temperature and heat gain of MWCNT-H2O nanofluids (0.02wt%) can increased up to 31.87% and 54.14% compared with deionized water, respectively. From the results it can be concluded that MWCNT-H2O nanofluids is suitable for direct absorption solar thermal energy systems.

Increased Spectrum Utilization with GaAsP/SiGe Solar Cells Grown on Silicon Substrates

MRS Advances ◽  
2016 ◽  
Vol 1 (43) ◽  
pp. 2901-2906
Author(s):  
Anastasia H. Soeriyadi ◽  
Brianna Conrad ◽  
Xin Zhao ◽  
Dun Li ◽  
Li Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Solar Spectrum ◽  
Energy Conversion Efficiency ◽  
Open Circuit ◽  
Commercial Application ◽  
Material Structure ◽  
Threading Dislocation ◽  
Spectrum Utilization ◽  
Tandem Solar Cells

ABSTRACTWorld-record solar-to-electricity energy conversion efficiency has been previously achieved by photovoltaic devices that maximize the use of the solar spectrum, such as multi-junction tandem solar cells. These cells are made of III-V materials whose high cost is a strong limitation on their widespread commercial application. One solution to suppress the cost of these types of devices is to grow III-V solar cells on low-cost carrier materials such as silicon. We will discuss the material, structure and analysis of GaAsP/SiGe-on-silicon multi-junction tandem solar cells. A low threading dislocation density is realized by effective lattice-matching of the top and bottom cells which demonstrate a device that achieves high open-circuit voltage in the top solar cell. The GaAsP/SiGe solar cells have reached a measured efficiency of 20.6% under one sun concentration. Analysis of these results based on the product of the best parameters shows efficiency potential of 26% under one sun, 30.8% at 20× and 35.1% at 400×.

Do moods and expectancies have unique or interactive effects?: An experimental investigation

2014 ◽  
Author(s):  
Shane Close ◽  
Victoria Adkins ◽  
Kandice Perry ◽  
Katheryn Eckles ◽  
Jill Brown ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Interactive Effects
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