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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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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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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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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
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t
h
). In this paper, the influence of geometrical parameters of V-down ribs attached below the cor...
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Tabish Alam, Md Irfanul Haque Siddiqui, Hassan Alshehri, Masood Ashraf Ali, Paolo Blecich and Kushagra Saurabh
This paper presents the thermo-hydraulic performance of small conical ribs on the absorber plate of a solar energy air heater (SAH) using exergy analysis. Application of conical protrusion ribs on the absorber is an attractive solution for enhancing the ...
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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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Xin Li, Bilong Liu and Chong Qin
A perforated plate with stepwise apertures (PPSA) is proposed to improve sound absorption for low frequencies. In contrast with an ordinary perforated plate with insufficient acoustic resistance and small acoustic mass, the perforated plate with stepped ...
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Yaw-Shyan Tsay, Jui-Yen Lin and Faxin Ma
The bass ratio describes the relationship between the reverberation energy in the low frequency region and that of the middle frequency. An appropriate bass ratio can create a warm sound; however, too much bass can influence speech clarity (C50) and work...
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Peter Steininger, Matthias Gaderer, Oliver Steffens and Belal Dawoud
A newly-developed solar active thermal insulation system (SATIS) is introduced with the main objective to accomplish a highly-dependent total solar transmittance on the irradiation angle. SATIS is also designed to obtain the maximum transmittance at a pr...
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Juan José González Bayón,Rubén Borrajo Pérez,Amadou Koulibaly
Pág. 62 - 71
En este artículo se realizó la simulación numérica (utilizando Fluent 6.3) de un colector solar de aire operando en convección natural con el objetivo de determinar el comportamiento de los perfiles de velocidad y temperatura. Los resultados muestran que...
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