need within 1 and half hrs i will upvote A full-load test was conducted on a two-stroke, 2-cylinder engine and the following results wereobtained:Speed = 1000 rpmBrake load = 25O NIndicated mean effective pressure = 300 kPaJacket water temperature rise = 35 KJacket water flow rate = 7 kg/minFuel consumption = 5 kg/hA/F ratio by mass = 30Exhaust gas temperature = 623 KRoom temperature = 298 KCylinder diameter = 0.22 mStroke = 28 cmBrake diameter = 160 cmCalorific value of fuel = 42 MJ/kgSpecific heat of exhaust gas = 1.0 kJ/kgKSpecific heat of water = 4.2 kJ/kgKDetermine the following.(a) indicated thermal efficiency (b) Specific fuel consumptionDraw up a heat balance sheet for test on an hourly basis.

The entire power created within the cylinder in one complete cycle, excluding any losses, is the…

Answered: A full-load test was conducted on a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A single – stage air compressor has a cylinder bore of 0.1m, a stroke of 0.075m and a clearance factor of 0.05. The conditions within the cylinder during suction which are identical to those of the environment are 0.1 Mpa and 300K . The compression and expansion index is 1.3. Calculate; a) The mass delivery rate b) The power required c) The volumetric efficiency d) The isothermal efficiency
2.5-L bench scale bioreactor is used for the production of recombinant P64K protein from Neisseria meningitides. The dimensions for the bioreactor are Dt 12.9 cm, ratio Di/Dt = 1/3 and N = 700 rpm. With the scale up factor of 2.24, determine the impeller tip speed (m/s) for the pilot scale bioreactor based on constant impeller tip speed and constant power consumption per volume. Predict which scale up method might give a higher concentration of P64K, if the demand of dissolved oxygen plays an important role.
The nominal power of the wind turbine is 3MW at wind speed 11.5m/s, generator efficiency is 94%, gear box efficiency is 0.75, power coefficient of blades is 0.59. What would be the diameter of the rotor
HANDWRITTEN AND FINAL ANSWER MUST BE IN ENGLISH UNITS. Show solution. An experimental gas turbine engine is under development to increase its mechanical efficiency. It has a turbine efficiency of 95% and compressor efficiency of 85%. The following parameters are provided: P1 = 550 kPa, T1 = 25 deg C, rp = 5.5, T3 = 1450 deg C, Wnet = 5500 kW. Compute for the (a) flow rate and (b) mean effective pressure. Consider Ethane as your working fluid.
A single stage, double acting air compressor delivers 15 m^3 of air per minute measured at 1.013 barand temperature 300 K and delivers at 7 bar. The conditions at the end of suction stroke are pressure 0.98 barand temperature 313 K. The clearance volume is 4 percent of the swept volume and the stroke/bore ratio is 1.3/1.The compressor runs at 300 r.p.m. Calculate I. volumetric efficiency; 2. cylinder dimensions; 3. indicated powerand 4. isothermal efficiency of this compressor. Take the index of compression and expansion as 1.3.
2. A centrifugal pump installation has been designed to discharge 0.126 m^3/s of brine (sp.gr. = 1.2). The suction pipe is 305 mm and is at the same level as the discharge pipe which is 203 mm in diameter. At the centerline of suction flange, the vacuum is 154.2 mm Hg. The discharge pressure gauge reads 0.1379 MPa and is connected 1.22 m above the discharge flange centerline. The pump is driven by a 35 KW electric motor that will not carry overload and has an efficiency of 82%. There is no significant head loss. The design conditions have changed, and is now desired to increase the capacity of the pump by increasing the speed. The motor is so designed that its speed maybe increased but its power cannot exceed its design rating. Assuming the pump efficiency to remain constant, how much can the pump capacity be increased without overloading the motor?
Provide solutions A penstock with a diameter of 4 ft and length of 225 ft carries water (γ = 62.4 lbf/ft3) through a 200 ft drop from a reservoir to a turbine. The penstock entrance is 10 ft below the water surface. The ﬂow rate through the system is 500 cfs and water exits the turbine in a free jet with a velocity of 9 ft/s. The Darcy-Weisbach friction factor for the penstock is 0.01. Flow is turbulent and head losses at the entrances and exits of the penstock and turbine are negligible. (a) Draw the hydraulic grade line and energy grade line. Label transitions points with the height change using symbols (e.g. hL for pipe head loss) (b) Determine the head delivered to the turbine by the water in ft.(c) If the turbine and generator have a combined eﬃciency of 80%, determine the power in hp generated by the system.
A single-stage, single-acting air compressor with runs at speed 600 rpm. It has a polytropic index of 1.26. The induced volume flow rate is 0.94 cubic meters per min and the air must be delivered at a pressure of 660 kPa. The free air conditions are 101.3 kPa and 15°C. The clearance volume is 6% of the stroke volume and the stroke/bore ratio is 1.6/1. 1. Calculate the delivery air temperature (in °C) 2. The volume of air induced into the compressor is ____ m3
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When viscous dissipation is appreciable, the energy balance of a convective system must include the viscous effects of the fluid, so a third term is added to the energy balance: A slide bearing (pillow block) can be idealized as a static plate and a plane that moves parallel to it. The rotary axis of such a system has a diameter of 100 mm and rotates at 3600 rpm inside the bearing, which has a gap between the plates of 0.5 mm. The system is lubricated by oil, with a density of 800 kg / m, a viscosity of 0 01 kg / ms and a thermal conductivity of 0:14 W / mk. The top and bottom surfaces of the bearing are at 60 ° C. Considering the viscous effects of the oil, determine a) The maximum temperature of the oil. FC b) Bottom plate heat flux per unit length W / m Write down all assumptions made

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