PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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A 6305 ball bearing is subjected to a steady 5000-N radial load and a 2000-N thrust load and uses a very clean lubricant throughout its life. If the inner race angular velocity is 500rpm find (a) The equivalent radial load (b) The L10 life (c) The L50 life
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Determine the Mean Effective Pressure (MEP) in [bar] for a 4-cylinder, 2-Stroke engine with a bore of 85.7 mm, and a stroke of 65.8 mm, that produces 85 hP at 5000 rpm. (Hint: Be careful with units). Note: 1 hP = 0.7457 kW; 100 kPa = 1 bar
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- Ibraheem Super Q3: A boiler as shown in the figure below is producing 2 kg/s saturated steam at 240C. The water enters the boiler at 24C. The boiler efficiency is 80%. Patm=1.05 bar .Determine: (10 Marks) 1- The inlet pressure of the turbine. 2- If a gauge pressure connected to the outlet pipe, what is the reading of this gauge? 3- Calculate the required diesel in [kg/s]. Assume the calorific value of the diesel is 45000 kJ/kgf 4- Calculate the equivalent evaporation of the boiler 5- Keeping the same inlet conditions and fuel consumption, determine the turbine efficiency if the produced steam was saturated at 300C. Steam Cut Hot Gasses Out Ts=240C Boiler FURNACE A Water In C 24 Examiner Head of Department Ahmad. A. M. Alsak laniarrow_forward##2# Superheated steam powers a steam turbine for the production of electrical energy. The steam expands in the turbine and at an intermediate expansion pressure (0.1 Mpa) a fraction is extracted for a regeneration process in a surface regenerator. The turbine has an isentropic efficiency of 90% Design the simplified power plant schematic Analyze it on the basis of the attached figure Determine the power generated and the thermal efficiency of the plant ### Dados in the attached imagesarrow_forward### To make a conclusion for a report of an experiment on rockets, in which the openrocket software was used for the construction and modeling of two rockets: one one-stage and one two-stage. First rocket (single-stage) reached a maximum vertical speed of 100 m/s and a maximum height of 500 m The second rocket (two-stage) reached a maximum vertical speed of 50 m/s and a maximum height of 250 m To make a simplified conclusion, taking into account the efficiency of the software in the study of rocketsarrow_forward
- Determine the coefficients of polynomial for the polynomial function of Cam profile based on the boundary conditions shown in the figure. S a 3 4 5 C₁ (+) Ꮎ В s = q + q { + c f * + q € * + q ( +c+c+c 6 Ꮎ +C5 +C β В В 0 cam angle 0 B 7 (arrow_forward### Superheated steam powers a steam turbine for the production of electrical energy. The steam expands in the turbine and at an intermediate expansion pressure (0.1 Mpa) a fraction is extracted for a regeneration process in a surface regenerator. The turbine has an isentropic efficiency of 90% Design the simplified power plant schematic Analyze it on the basis of the attached figure Determine the power generated and the thermal efficiency of the plant ### Dados in the attached imagesarrow_forwardThe machine below forms metal plates through the application of force. Two toggles (ABC and DEF) transfer forces from the central hydraulic cylinder (H) to the plates that will be formed. The toggles then push bar G to the right, which then presses a plate (p) into the cavity, thus shaping it. In this case, the plate becomes a section of a sphere. If the hydraulic cylinder can produce a maximum force of F = 10 kN, then what is the maximum P value (i.e. Pmax) that can be applied to the plate when θ = 35°? Also, what are the compressive forces in the toggle rods in that situation? Finally, what happens to Pmax and the forces in the rods as θ decreases in magnitude?arrow_forward
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