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Omer Faruk Can, Nevin Celik, Filiz Ozgen, Celal Kistak and Ali Taskiran
In this study, a numerical and experimental analysis of a solar collector with roughness elements in the form of stainless-steel scourers on the absorber surface is presented. According to the location type and number of the stainless steel scourers, the...
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Mustafa Alaskari, Arwa M. Kadhim, Ammar A. Farhan, Moustafa Al-Damook and Mansour Al Qubeissi
Artificial roughness applied to a Solar Air Heater (SAH) absorber plate is a popular technique for increasing its total thermal efficiency (????-??h
?
t
-
t
h
). In this paper, the influence of geometrical parameters of V-down ribs attached below the cor...
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Miao Pan, Huazhu Huang, Wenzhi Chen, Shuai Li, Qinglai Xie, Feng Xu, Dongwei Wei, Jun Fang, Baodian Fan and Lihan Cai
In this paper, using the surface plasmon and Fabry?Pérot (FP) cavity, the design of a symmetric silicon grating absorber is proposed. The time-domain finite difference method is used for simulation calculations. The basic unit structure is a dielectric g...
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Muhammad Shakeel Ahmad, Shwe Sin Han, Amad Zafar, Usman Ghafoor, Nasrudin Abd Rahim, Muhammad Umair Ali and You Seung Rim
In this study, the effects of metallic zinc (Zn) particles were studied to increase surface temperature on a solar-still absorber, which is a major component of increased production. Various concentrations of Zn particles were mixed in black paint and ap...
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Ahmed Ahmed, Gamal A. El-Hiti, Angham G. Hadi, Dina S. Ahmed, Mohammed A. Baashen, Hassan Hashim and Emad Yousif
This study develops a process for enhancing the photostabilization of PVC films blended with a low concentration of mefenamate?tin complex. One tri-substituted and three di-substituted organotin complexes containing mefenamate unit are synthesized, and t...
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Mohamed E. Zayed, Abdallah Kamal, Mohamed Ragab Diab, Fadl A. Essa, Otto L. Muskens, Manabu Fujii and Ammar H. Elsheikh
Increasing the evaporation zone inside the solar distiller (SD) is a pivotal method for augmenting its freshwater production. Hence, in this work, a newly designed prismatic absorber basin covered by linen wicks was utilized instead of the conventional f...
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Javier E. Barrón-Díaz, Emmanuel A. Flores-Johnson, Danny G. Chan-Colli, J. Francisco Koh-Dzul, Ali Bassam, Luis D. Patiño-Lopez and Jose G. Carrillo
Compound parabolic concentrator (CPC) solar collectors are widely used for solar energy systems in industry; however, CPC collectors for residential applications have not been fully investigated. In this work, the thermal performance of non-tracking, sma...
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Yi Ding, Peizhuan Chen, Qi Hua Fan and Guofu Hou
One of the foremost challenges in designing thin-film silicon solar cells (TFSC) is devising efficient light-trapping schemes due to the short optical path length imposed by the thin absorber thickness. The strategy relies on a combination of a high-perf...
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Valeria Castellucci, Johan Abrahamsson, Tobias Kamf and Rafael Waters
The power production of the linear generator wave energy converter developed at Uppsala University is affected by variations of mean sea level. The reason is that these variations change the distance between the point absorber located on the surface and ...
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Michele Tonan, Alberto Pasetto and Alberto Doria
In this paper, the possibility of harvesting energy from the vibrations of a plate is analyzed. The harvester takes the form of a cantilever dynamic vibration absorber equipped with a piezoelectric layer and tuned by means of a tip mass to the first mode...
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Jinming Wu
The objective of this work is to identify the maximum absorbed power and optimal buoy geometry of a heaving axisymmetric point absorber for a given cost in different sea states. The cost of the wave energy converter is estimated as proportional to the di...
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Jinho Lee and Ju Han Lee
This study reports a Q-switching-based, 2058-nm holmium (Ho) fiber laser incorporating a saturable absorber (SA) based on graphene oxide (GO). The SA was prepared with a side-polished fiber, while GO particles were deposited onto the fiber-polished surfa...
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Saiaf Bin Rayhan and Xue Pu
Over the past two decades, aircraft crashworthiness has seen major developments, mainly with modern computing systems and commercial finite element (FE) codes. The structure and the material have been designed to absorb more kinetic energy to ensure enou...
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M. I. Rodríguez-Tapiador, J. M. Asensi, M. Roldán, J. Merino, J. Bertomeu and S. Fernández
Copper nitride (Cu3N) has gained significant attention recently due to its potential in several scientific and technological applications. This study focuses on using Cu3N as a solar absorber in photovoltaic technology. Cu3N thin films were deposited on ...
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Seiki Chiba and Mikio Waki
Using a sample coated with three types of carbon-based paints, namely single-wall carbon nanotube (SWCNTs), carbon black, and graphite, the amount of radio wave absorption for each was measured. SWCNTs proved to have the superior radio wave absorption ef...
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Jian Yan, Youduo Peng and Duzhong Nie
The mirror unit installation error of the solar parabolic dish concentrator can adversely affect its optical performance causing optical intercept losses and hot spots on the absorber surface, which in turn affect safety. Thus, minimizing mirror installa...
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Olga Semeshko,Yulia Saribyekova,Tatyana Asaulyuk,Nataliia Skalozubova,Sergey Myasnikov
Pág. 20 - 32
Mathematical planning of the experiment was used to develop a formulation for light stabilizers to improve the lightfastness of cotton knitwear coloration, dyed with active dyes, in order to produce comfortable and high-quality knitted clothes. The varia...
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Asrori Asrori,Sudjito Suparman,Slamet Wahyudi,Denny Widhiyanuriyawan
Pág. 31 - 41
The study to investigate the thermal performance of solar cooker using a spot Fresnel lens for concentrators of solar thermal energy is conducted.The main objectives of the present work are:a) to develop a new design of the cooking pot of solar cook...
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In this communication, the sound absorption characteristics of rectangular-shaped plane space sound absorbers without any backing structure using permeable membranes (PMs) are measured by reverberation room method. First, three types of PMs, in this stud...
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Imam Kusyairi,Moch. Agus Choiron,Yudy Surya Irawan,Helmy Mukti Himawan
Pág. 61 - 68
Crash box serves as a kinetic energy absorber during collision. It has a tube shape, which is located between bumper and chasis. The crash box design requires development in order to reduce buckling mode and obtain symmetry folding mechanism, so it...
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