Determine the Maximum Range for the Gulfstream G550 at 41,000 feet. The weight of the plane when full of fuel is 91,000 pounds, and it holds 6,165 gallons of fuel (6.67 pounds per gallon). The wingspan is 91.5 feet and the wing platform area is 1,137 square feet. The Oswald efficiency factor is 0.9 and the zero-lift drag coefficient is 0.0165. The Specific Fuel Consumption rate is 0.6414 pounds per pound-hour.

In: Mechanical Engineering

Find the latent heat value of the melting of the ice according
to the following information:

MCvessel = 23 cal / oC

Cw = 1 cal / g.oC

Mass of water = 163g

Ice block = 18g

Primary water temperature = 23oC

The temperature of the mixture (water and ice) = 14oC

In: Mechanical Engineering

Why air-cooled and furnace-cooled materials cooled for a duration of 1 hour or 60 minutes.

In: Mechanical Engineering

Using the Lumen Method to find out how many fittings are
required for a square conference room which requires 500 lux from
CIBSE Guide, of area 200 m2, using the T5 fluorescent fittings at
1.2 meter long each and at 2 m high measured from the light source
to the working surface.

The 1.2m T5 luminaire has 2700 lumens each.

Your answer should mention about all the light losses, say, due to
surface reflectance at ceiling, wall and floor, light loss factor,
maintenance factor, etc,.

In: Mechanical Engineering

Please refer to the article titled as “Sustainable Construction Excellence for a Better Future in Malaysia, published in The Ingenieur, Vol. 69 January – March 2017 by the Board of Engineers Malaysia. Identify the key challenges in sustainable construction and what should be undertaken to achieve sustainable cities?

In: Mechanical Engineering

A manufacturing process produces piston rings, with ID (inner diameter) dimension as shown above. Process variation causes the ID to be normally distributed, with a mean of 10.021 cm and a standard deviation of 0.040 cm. a. What percentage of piston rings will have ID exceeding 10.075 cm? What percentage of piston rings will have ID exceeding 10.080 cm? (4) b. What is the probability that a piston ring will have ID between 9.970 cm and 10.030 cm? (This is the customer’s specification that the supplier tries to provide .) (ie.) If the specification is “9.970cm < ID < 10.030cm”, what %’age of piston rings are “out of spec”? c. Half (50%) of all piston rings have ID below 10.021 cm. What is the dimension corresponding to the smallest 10%, and what is the dimension corresponding to the largest 10%? What is the dimension corresponding to the smallest 20%, and what is the dimension corresponding to the largest 20%

In: Mechanical Engineering

- (10 pts) Air (R = 0.287 kJ/kg.K) enters the compressor of a
simple Brayton cycle at 94 kPa and 7
^{o}C. The pressure ratio is 19.2, the compressor efficiency is 81%, the turbine inlet temperature is 1600 K and the turbine isentropic efficiency is 85%. The mass flow rate is 21 kg/s. Using variable specific heat analysis, determine:- (2 pts) The power input to the compressor, in kW.
- (2 pts) The rate of heat input in the combustion chamber, in kW.
- (3 pts) The net power produced by the engine, in kW.
- (1 pt) The overall efficiency
- (2 pts) The density of the air exiting the compressor, in
kg/m
^{3}.

In: Mechanical Engineering

**
What do we mean when we say “a preferred size”? Explain and give an
example.**

In: Mechanical Engineering

A cylindrical storage tank contains liquefied propane under a pressure of 1.5 MPa (gage pressure P=1.5 MPa) and is subjected to a torque T=5 kN-m. Knowing that the tank has an inner diameter of 320 mm and a wall thickness of 3 mm, find the principal stresses and determine the maximum shear stress.

In: Mechanical Engineering

Discuss the use of the RS-485 repeater.

In: Mechanical Engineering

how to produce a bolt using traditional methods ?

In: Mechanical Engineering

- A device used to expose fighter pilots to high g’s that they
might experience in action incorporates a small cockpit on the end
of a 50 ft. long radial shaft that is attached to the cg. of the
cockpit. The cockpit and pilot weigh 600 lb total. If there is a
motor that provides a torque of 1000*sqrt(t) ft-lb to the system,
calculate the following:
- How fast does the cockpit have to travel to produce 6 g’s?
- How long does the system take to get to that speed?

In: Mechanical Engineering

Assume you have a metal alloy - an aluminum alloy for example - that has been welded and then heat treated in a way that leaves you uncertain as to the microstructure. Since the component is to be used for a critical application, you want to be sure of both the structure and mechanical properties. You want to create a single phase structure so that you can "start over" with a new heat treat cycle to more exactly and carefully create the desired properties. What type of heat treatment would you use to create the single phase structure?

In: Mechanical Engineering

For
design of a car suspension system , what type of vibration system
you would choose and why ( bring 2 reasons for your sele reasons
for your selection ) ?

In: Mechanical Engineering

1. Write a report on advancement in wheel and tyre
technology.Also the report should be consest of 10-12
Page,Advantage disadvantage,Future scope.Plagarsim level should be
Zero.

Please don't answer if you don't know and write the report on 10-12
page minimum.

For small answer or for plagrism I will downrate your answer.So if
you know than only answer it

In: Mechanical Engineering