The basic formula for determining the of a Pelton turbine is Eq. (2.40). This equation has been taken over directly from the equation of frictionless flow in a linearly translating bucket. It only takes into consideration the exit swirling loss. Since the efficiency is calculated there for a ...
Evidently, due to friction during rotation, some energy is dissipated in the form of heat. Moreover, turbines usually do not capture all mechanical energy of the flow which also negatively contributes to the overall process efficiency. Next, rotation of the turbine can then be used in multiple...
One such sustainable method is to transfer out grinding heat with high efficiency by passive thermal devices, such as heat pipes [22]. The grinding heat can be dissipated in time with the help of thermal devices instead of gathering in the grinding zone. Therefore, the grinding temperature can...
Professor Zhou28 found through experiments that for the original data with d dimension characteristics, when using d/16, d/8 and d/4 windows for scanning, it can not only ensure the diversity of samples, but also maximize the computational efficiency. Therefore, we also use this window size ...
of pistons; however, it has rarely been analyzed from the perspective of the piston number. To improve the performance and efficiency of the axial piston pump, a computational fluid dynamics (CFD) simulation model of the churning loss was established, and the effect of piston number on the ...
can further enhance performance. Triboelectricity’s most advanced surface charge density can reach ~8.8 mC/m2, with average power reaching the mW scale8. There have been generous cases of using TENG to support wearable sensors23,45. Lastly, ongoing optimization of efficiency, circuit standardization...
The legitimate possession of a certificate of competency in this particular class of work issued by the Electrical Licensing Board under the Electricity Act 1994 shall be recognised as proof of efficiency. Submerged fill pipe means any fill pipe the discharge opening of which is entirely submerged ...
Ceramic thermal barrier coatings (TBCs) are used extensively to protect the Ni- or Co-based alloy components of gas-turbine engine from temperature extremes and to further increase their operating temperatures, thus achieving the goal of increasing turbine efficiency. The most practical TBCs currently...
From the standpoint of model efficiency, the complexity 6 equation guarantees a lower complexity while considering the accuracy and is the optimum solution for SR. However, the equation contained only one characteristic variable x2, without x0 and x1. This study aimed at building an FCG rate ...
TiAl alloys have attracted extensive interest among industrial companies for aeroengine applications due to the stringent requirements for higher thrust-to-weight ratios and greatly enhanced fuel efficiency1,4,9. TiAl are being used in the compressor part of aerospace gas turbine engines and the low...