The 1370 diameter steam drum on a boiler is 2440 mm long has a 250 mm gauge glass at mid-drum level. Find the maximum steam generation that could be cared for by a blowdown of half a water gauge each 8 hr. shift. Pressure, 17.5 kg/cm2 gage. Sr = 150 PPM, Sb = 2000 PPM.

Given a horizontal conveyor, 46 m centers, 175 pounds per hr capacity of handling bituminous coal at 0.5 m/s with 800 kg per m³. Other data as follows: Flight width and depth 610 mm x 200 mm Quantity of material 0.108 m3/m Coefficient of friction elements 0.10 Material Coefficient of friction 0.59 Assume an engineering-type chain with sleeve bearing rollers weighing with flights, 89.3 kg/m. Calculate the chain pull in kg.

A 500 kw diesel has a heat rate of 12,000 kJ/kw-hr. The compression ratio is 16:1, cut of ratio of 2.3. Assume k = 1.32. Calculate the engine efficiency based on the output of 500 kW.

An ideal gas turbine operates with a pressure ratio of 10 and the energy input in the high temperature heat exchanger is 300 kW. Calculate the air flow rate for a temperature limits of 30°C and 1200°C.

A nuclear power plant is to have a capacity of 500 MW-electrical. How many pounds of U235 are needed to operate the plant continuously for 6 years if the plant capacity factor is 75% and thermal efficiency is 35%.

A 600 MWe PWR nuclear plant uses 4% enriched Uranium fuel has a thermal efficiency of 36%. The burn up allowed of the fissionable portion of the fuel is 20%. Calculate how many metric tons of natural Uranium is placed in the reactor vessel for one year continuous operation?

A 39.5 m high chimney of radial brick masonry is described by the following top and bottom dimensions. D2 = 1.9 m, d2 = 1.5 m, D1 = 3.2 m, d1 = 2.3 m. Determine the moment due to wind load. A.

A pump delivers 20 cfm of water having a density of 62 lb/ft'. The suction and discharge gage reads 5 in. Hg vacuum and 30 psl respectively. The discharge gage is 5 ft above the suction gage. If pump efficiency is 70%, what is the motor power?

Calculate the air power of a fan that delivers 1200 m3/min of alr through a 1 m by 1.5 m outlet. Static pressure is 120 mm WG and density of air is 1.18.

The fan has a total head of 190 m and a static pressure of 20 cm WG. If the air density is 1.2 kg/m3, what is the velocity of alr flowing?

A tank contains 3 ft of 120 psig air at 80°F. How many tires of volume 1.2 ft can be inflated to 28 psig at 80°F?

What is the root-mean-squared velocity of oxygen molecules at a temperature of 70°F ?

What is the rise in temperature of water dropping over a 200 ft waterfall and settling in a basin below? Neglect all friction and assume initial velocity is negligible.

The turbine of a jet engine operates adiabatically and receives a steady flow of gases at 114 psía, 1340°F and 540 ft/s. It discharges at 30.6 psia, 820°F 1000 ft/s. Find the work output per pound of gas.

One kilogram of air 1.2 kg/cm2 at 30°C is compressed according to the law of PV where: C = 1.36 until Its volume 0.5 m3 if its is compressed isothermally. What will be the percent saving work?

An electron strikes the screen of the cathode ray tube with a velocity of 10 to the 9th power cm/s. Compute its kinetic energy in ERGS. The mass of an electron is 9 x 10-31 kg ?

0.064 kg of octane vapor (MW = 114) is mixed with 0.91 kg of air (MW = 29.0) In the manifold is 86.1 kPa, and the temperature is 290 K. Assume octane behaves ideally, what is the total volume of this mixture?

Find the amount of electrical energy temperature of 45 liters of water by 75°C. Assume the efficiency of the heating equipment to be 90% ?

How long could a 2000 hp motor be operated on the heat energy liberated by 1 mi.3 of ocean water when the temperature of the water is lowered by 1°C and if all these heat were converted to mechanical energy?

A jet of water is discharge through a 1-inch diameter orifice under constant head of 2.1 ft the total discharge is 228 Ibm in 90 seconds. The jet is observed to pass through a point 2 ft downward and 4 ft away form vena contracta. Coefficient of velocity.

A jet of water is discharge through a 1-inch diameter orifice under constant head of 2.1 ft the total discharge is 228 Ibm in 90 seconds. The jet is observed to pass through a point 2 ft downward and 4 ft away form vena contracta. Coefficient of velocity.

If atmospheric air 14.7 psia and 60°F at sea level, what is the pressure at 12000 ft altitude If air is Incompressible. Note: @ 60°F; the density of air is 0.0763 lbm/ft; P1 = 14.7 psla

Ideal Oxygen is throttled at 140°F from 10 atm to 5 atm. What is the temperature change?

An empty polyethylene telemetry balloon and payload have a mass of 500 lbm. The balloon is charged with helium when the atmospheric conditions are 60°F and 14.8 psia. The specific gas constant of helium is 386.3 ft-lb / Ibm R. What is the volume of hellum is required?

A pipe of internal diameter 6 units carries water with a depth of 3 unit under in influence of gravity. Calculate the Hydrauic radius.

A pump driven by an electrical motor moves 25 gal/min of water from reservoir A to reservoir B, lifting the water a total head of 245 feet. The efficiencies of the pump and motor are 64% and 84% respectively. What is the size of motor required?

Water ( p = 1000 kg/m3, E = 2 x 109 Pa) is flowing at 4 m/s through a long length of 4 -in schedule - 40 steel pipe ( D= 0.102 m, t = 0.0062 m, E = 2 x 1011Pa) when a valve suddenly closes completely. What is the theoretical increase in pressure?

A cetrifugal pump powered by a direct-drive Induction motor is needed to discharge 150 gal/min against a 300-ft total head when turning at the fully loaded speed of 3500 rpm. What type of pump must be selected?

Determine the hydraulic the diameter and the hydraulic radius for the open trapezoidal channel whose above and bottom lengths are 7 and 5 units respectively. The depth of the water is 3 units.

Water at 60°F has a specific gravity of 0.999 gm/cm3 and a kinematic viscosity of 1.12 centistoke (cs). What is the absolute viscosity in lbs/ft2?

A steam engine operating between a boiler temperature of 220 deg. C and a condenser temperature of 35 deg.C delivers 8 Hp. If its efficiency is 30 percent of the for a Carnot engine operating between this temperature limits, how many calories are absorbed each second by the boiler?

How many kilograms of water at 0 deg. C can a freezer with a coefficient of performance 5 make into ice cubes at 0 deg. C with a work input of 3.6 MJ (one kilowatt-hour)?

What is the change in entropy of 2 kg water molecules when transformed at constant pressure of 1 atmosphere from water at 100 deg. C to steam at the same temperature ?

In a gaseous mixture of 20 deg. C the partial pressures of the components are as follows: Hydrogen, 200 mmHg; Carbon dioxide, 150 mm Hg, methane, 320 mmHg; ethelyne, 105 mmHg. What is the mass fraction of hydrogen (m(H2) = 2, m(CO2) = 44, m(meth) = 16 and m(eth) = 30 kg/mol)?

A copper can of negligible heat capacity contains 1 kg of water just above the freezing point. A similar can contains 1 kg of water just below the bolling point. Two cans are brought to into thermal contact. Find the change in entropy of the system ?

Assume the total heat of vaporization (per gram) of water can be used to supply the energy needed to tear 1 g of water molecules apart from each other. How much energy is needed per molecule for this purpose?

Assume the total heat of vaporization (per gram) of water can be used to supply the energy needed to tear 1 g of water molecules apart from each other. What is the ratio of energy needed per molecule to KT where k = 1.38 x 10-²³ J/K?

Cool water at 9 deg. C enters hot-water heater from which warm water at a room temperature of 80 deg.C is drawn at an average rate of 300 g/min. How much average electric power does the heater consume in order to provide hot water at this rate?

A hose shoots water straight up a distance of 2.5 m. The end opening on the hose has an area of 0.075 cm2. How much water comes out in 1 min ?

Compute is the percent rating of a water tube boiler if the heating surface area is 500 m2 and the developed boller horsepower is 750 ?

A waste heat recovery boiler produces 4.8 MPa ( dry saturated) steam from 104°C feed water. The boiler receives energy from 7 kg/s of 954°C dry alr. After passing through the waste heat boiler, the temperature of the air has been reduced to 343°C. Compute the volume flow rate of the steam in kg produced per second ? Note: At 4.8 MPa dry and saturated, h = 2796.0 kJ/kg.

What is the power which a 3.5 MW natural gas engine can developed at an altitude of 1981.2 m assuming that the pressure change alone.

A four stroke, direct injection diesel engine of 4 in. bore x 4.5 in. stroke develops 45 Hp at full load and 8 Hp when running at idling load. Engine speed is 2,200 rpm. Compute the mechanical efficiency.

The ultimate analysis of coal is given below: C = 68.5 % S = 1.5 % Ash = 12.0% H = 2.5 % 0 = 3.5% What is the higher heating value of coal.

In a boiler design, it is desirable to have the flue gas exit temperature above the dewpoint. What is the dew point temperature of the flue gas produced by combustion having the gravimetric analysis of: N2 = 71.84% O2= 3.61 % CO2 = 20.35% H2O 4.20 % Assume that alr infiltration and leakage are negligible.

Water (p = 62.4 lbm/ft) is flowing through a pipe. A pitot-static gage registers 3.0 inches of mercury. What is the velocity of the water in the pipe?

A refrigeration system produces 20 kg/hr of Ice from water at 20 deg. C. Find the tonnage of the unit.

The individual buckets of a vertical elevator carry 3.6 kg of coal and are spaced 30.5 cm apart on the chain. Sprocket wheels 61 cm diameter, chain speed 79.92 m/min. Height between sprockets, 9.1 m. Drive: 1750-rpm motor through sprockets and steel roller chain. What is the motor horsepower requured to drive the conveyor drive shaft?