alternative transients program atp rule book

With this digital program, complex networks and control systems of arbitrary structure can be simulated. Two days later, your Editor sent E-mail to provide a reference to ATP cooperation, however: 'I mentioned the new ATP Web site, which is operated by the European user. About Alternative Transients Program (ATP-EMTP) Alternative Transients Program Features Introduction ATP is a universal program system for digital simulation of transient phenomena of electromagnetic as well as electromechanical nature. When handling CPU's with higher power (> 80 W), jet impingement cooling along with proper heat sink design and PC chassis design offers another possible choice. For the record, your Editor downplayed ATP as a model for development of the other programs (e.g., load flow and transient stability), which seem to involve different challenges. It was found that the cooling effect was further enhanced. Moreover, by changing the design of the PC chassis, we were able to increase the fin height and z/D from 32.75 mm to 38.05 mm and from 4 to 8, respectively. Specifically, the cooling performance by jet impingement for Re = 15000 and fin width 5.3 mm surpasses that by using fan-heat sink coolers. When the fin width was increased to 5.3 mm, the performance by jet impingement was improved significantly. CPU, it was found that the cooling effect by using air impingement on a heat sink with z/D = 4 and fin width 4.13 mm for the jet Reynolds number (Re) between 20000 to 25000 is comparable with the cooling effect achieved by using traditional coolers. The effects of fin height, fin width, base plate thickness of the heat sink, and ratio of the vertical spacing between the nozzle and the heat sink to jet diameter (z/D) were discussed in detail. The feasibility and effectiveness of air impingement cooling on pin-fin heat sinks applied in personal computers (PC) were investi-gated numerically in this study.

Alternative transients program atp rule book