Abstract
Plasmonic materials are the artificially manufactured materials (metamaterials) typically composed of nanostructure noble metals which give the unique optical properties superior to naturally occurring materials. Such plasmonic material has ability to give surface plasmon when electromagnetic light wave interact with free electrons in conduction band of the noble metals. Entirely absorption of light wave is the one of the major property of such plasmonicmetamaterials. Recently, these metamaterials has drawn the attention of scientists because of its wide range of applications in harvesting energy and sensors. These applications are strongly dependent on adjusting the absorption band-width, peak position and absorption intensity. In this work we show that using ultra-thin multicomponent (i.e. Au NPs incorporated in mixture of SiO2 and TiO2 matrix) nanocomposite deposited on optically thick gold film through subsequent magnetron sputtering. Experimental results show that one can broaden the bandwidth and peak position to span Ultraviolet up to near infrared wavelength range.
Highlights
Energy resources must be utilized in the most effective way to cope up with the increasing energy demands
The effects of condenser pressure on the cooling capacity and overall performance of the combined system at different evaporator pressures are exhibited in Figs. 3-4, respectively
In the case when evaporator pressure increases, the cooling capacity increases due to increase in the latent heat of vaporization of the refrigerant, which can be quantified by referring Fig
Summary
Energy resources must be utilized in the most effective way to cope up with the increasing energy demands. With cooling effect as a product for human comfort and industrial processes, different types of refrigeration cycles are used, requiring various forms of energy inputs. The VC cycle that needs a high grade of energy to operate offers high COP (Coefficient of Performance). The VA system is commonly used, where there is the availability of low-grade energy, this system can utilize energy from exhaust heat sources or steam. These systems require less maintenance and are noiseless in comparison to power-driven systems, proven to be environmentally-friendly as compared to other systems [1]. Energy management of HVAC (Heating, Ventilating and Air Conditioning) systems is the chief concern for Mehran University Research Journal of Engineering & Technology, Volume 36, No 3, July, 2017 [p-ISSN: 0254-7821, e-ISSN: 2413-7219] 733
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