Stamping Effect on Oil Canning and Dent Resistance Performances of an Automotive Roof Panel

2007 ◽  
Author(s):  
S.-D. Liu ◽  
X. Xiao ◽  
L. Zhang ◽  
F. J. Landeros
Keyword(s):  
Oil Canning ◽  
Roof Panel

scholarly journals Calculation Of Pressure Rise And Energy Of Hot Gases Due To High Energy Arcing Faults In The Metal-clad Switchgear

2017 ◽  
Vol 4 (2) ◽  
pp. 116-119
Author(s):  
M. Iwata ◽  
T. Miyagi ◽  
Y. Goda ◽  
K. Shirai
Keyword(s):  
Thermal Effect ◽  
Pressure Rise ◽  
High Energy ◽  
Arcing Faults ◽  
Pressure Development ◽  
Calculation Results ◽  
Roof Panel

This paper presents the 3-D CFD calculation results of the pressure rise due to the High Energy Arcing Faults (HEAFs) in the metal-clad switchgears. The calculations were performed considering the came-off of the roof panel that was observed in the arc tests. The calculated pressure development approximately agreed with the measured one. Furthermore, the energy of hot gases exhausted from the broken roof panel was calculated to investigate the thermal effect of hot gases.

scholarly journals Computational Fluid Dynamics of Roof Top using PCM for Efficient Thermal Management

2019 ◽  
Vol 9 (2) ◽  
pp. 4926-4929
Keyword(s):  
Fluid Dynamics ◽  
Energy Storage ◽  
Thermal Management ◽  
Double Layer ◽  
Phase Change Materials ◽  
Concrete Slab ◽  
Single Layer ◽  
Heat Energy ◽  
Relative Temperature ◽  
Roof Panel

This paper presents a simulated parametric study to investigate the thermal management of the roof panel using phase change materials (PCM). The warmth engrossing and expelling ability of PCM is utilized to regulate the warmth produced in the room. A single and double layer of the PCM was kept between the roof and concrete. The energy saving level has noted on particular time without PCM materials, the same method as performed with single layer PCM and double layer PCM. Along these lines, it's exceedingly important to improve the warm presentation, so as to accomplish the objective of vitality sparing. So the Thermal Energy Storage (TES) is perhaps the most ideal approaches to improve thermal execution of building. The major classifications of the heat energy storage are practical and dormant. This paper is focused on one point such as PCM materials with to reduce the heat generated inside the room. CFD is seen as a superior substitute in present day ventures and has the capacity of taking care of such difficult issues. From the assistance of CFD, relative examinations are produced to consider the accompanying cases, for example, Case 1: Concrete piece with rooftop top section off without PCM. Case 2: Concrete slab with roof top slab off with single layer PCM. Case 3: Concrete slab with roof top slab off with Double layer PCM. The relative temperature design inside the room is utilized to comprehend the warm solace in the room and the upsides of utilizing PCM.

Modular Green Roofs and their Usage in the World

2020 ◽  
Vol 47 ◽  
pp. 103-108
Author(s):  
M. Hejl ◽  
Martin Mohapl ◽  
Lukáš Bříza
Keyword(s):  
Czech Republic ◽  
Green Roof ◽  
Optimal Solution ◽  
Green Roofs ◽  
Modular System ◽  
Layer System ◽  
Construction Time ◽  
The Czech Republic ◽  
The World ◽  
Roof Panel

This article wants to introduce modular green roof systems and their usage in the world as well as in the Czech Republic, because green roofs are now used more than they have been constructed in any era in the history. Their construction is almost same as it was in previous centuries, so the obvious solution for their improvement is in the construction of themselves. Especially in the improvement of their construction time which should be lower with usage of modular system than at classical layer system of the green roofs. This research also wants to speak about construction system for individual types of green roof. Where the purpose of this article is to set optimal solution for modular green roof panel which will be economical and environmentally friendly.

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