They argued that since heat energy always flows from the area of high temperature to the area of low temperature, there would be the development of two phases of thermal resistance.The first one is the conductive resistance that was provided by the pipe material. The second resistance is the convective resistance that was supplied by the atmospheric air. Therefore, they concluded that the direction of heat flow depends on the magnitude of these resistances. Since thermal transfer is mono-directional, heat will always migrate to the side with less resistance. However, they termed a situation where there is an equal resistance between the two phases as isotropic. Furthermore, they assumed that all the ducts were made of aluminum material with known density and thermal conductivity. In addition, they also assumed that the ambiance that surrounded the ducts had a constant temperature together with a coefficient of heat transfer. They obtained different features of the duct through variation of the duct material. In conclusion, they obtained their results by concentrating on hyperview, which is a variable of the temperature gradient, grid temperatures together with the heat flux.In this article, the authors explored another way of enhancing the bending stress on making helical gears. Their method involved the use of asymmetric involute teeth profile. According to their method, the process of achieving bending stress specifically for symmetric gears requires incorporation and modification of the Lewis equation. After modification, they called it Abdullah equation. They specialized in helical gears with. Innovation System Design and Engineering.
Kottala Kumar and Dinesh Kiran. "Analysis of Power System Relaying Operations Using
Wavelet Transforms." Innovative Systems Design and Engineering Vol 5.No 11 (2012):
22-31. Print.Top of FormBottom of Form
Kumar, Sanjeev, Satyendra Singh, and Ravi Kumar. "Thermal Analysis of Various Duct Cross
Sections Usi Ng Altair Hyperworks Software." Innovative Systems Design and
Engineering Vol 5.No 11 (2011): 30-39. Print. Top of FormBottom of Form
Sabah Abdulwahhab, Omar, and Mohammad Qasim Abdullah. "Enhancement of Bending
Strength of Helical Gears by Using Asymmetric Involute Teeth Profiles." Innovative
Systems Design and Engineering Vol 5.No 11 (2011): 8-21. Print.
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