62 476
Assignments Done
98,9%
Successfully Done
In June 2018

Mechanical Engineering Answers

Questions: 68

Free Answers by our Experts: 42

Ask Your question

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Search & Filtering

Q1
Analyse the suitability of the technology of Allen Bradley in industrial PLC systems.
Q2
Analyse the suitability of the technology of siemens in industrial PLC systems.
Q3
Evaluate, the suitability of the technology of Allen Bradley in industrial PLC systems, suggesting possible improvements.
Q4
Evaluate, the suitability of the technology of Siemens in industrial PLC systems, suggesting possible improvements.
Describe an experimental procedure that the student could use to measure the force F that the air experts on the fan-block system when the fan is turned on. Assume that the magnitude of this force is the same for l angles 0
A four-Cylinder, four-stroke diesel engine develops 83.5 kW at 1800 rev/min ands a specific fuel consumption of 0.231 141W h, and air-fuel ratio of 23/1. The analysis of the fuel is 87% carbon and 13% hydrogen. and the is 43 500 kl/kg. The jacket cooling water flows at 0.246 kegs and its temperature rise is 50 K. The exhaust temperature is 316'C. Draw up an energy balance for the engine. Take R sa0.302 klike K and e, = 1.09 kl/kg K for the dry exhaust gas, and c, - 126 kJ/kg K for superheated steam. The temperature in the tat house is 17.8° C. and the exhaust gas pressure is 1.013 bar
Natural gas combustion is being used for steam generation and 5% excess air is incorporated into the combustion. Estimate the composition of the flue gas and compute the % thermal energy loss if the flue gas temperature is 20°C.
A pudding mix is being formulated to achieve a total solids content of 20% in the final product. The initial product has a temperature of 60°C and is preheated at 90°C by direct steam injection using saturated steam at 105°C. If there is no additional gain or loss of moisture from the product, what is the total solid content of the initial product?
Steam with 80% quality is being used to heat a 40% total solids tomato puree as it flows through a steam injection heater at a rate of 400 kg/hr. The steam is generated at 169.06 kPa and is flowing to the heater at a rate of 50 kg/hr. Assume that the heat exchanger efficiency is 80%. If the specific heat of the product is 3.2 kJ/kg. K, determine the temperature of the product leaving the heater when the initial temperature is 50°C. Determine the total solids content of the product after heating. Assume the specific heat of the puree is not influenced by the heating process.
manufacturing is a basic subject which related to basic need of people as well as standard of a country discuss why it is necessary for all engineers to know about manufactruing processes
Lubricating oil enters the tubes of a heat exchanger at 74C and leaves at 34 C. The diameter of the tube is 50 mm and the oil flow through the tube at 2.5 m/s.
Input power to the system is 30 kW.
The specific heat capacity of the oil is 2.28 kJ/kgK and the density is 900 kg/m3. Determine;
a. The mass flow rate of the oil.
b. The thermal efficiency of this heat transfer process.
For a reversed heat engine the evaporator and condenser temperature at -5 and 50 degree Celsius respectively. The specific heat capacity at constant pressure is 0.956kJ/KgK if the mass flow rate of the refrigerant is 0.012kg determine the evaporator heat loads, C.O.P Of the refrigerator and heat pump and power
The thermal resistance of the pipe wall can be ignored due to the pipe's relatively low wall thickness. Based on the below worked example we can see accounting for the mean pipe wall thickness the difference between the above and below answer's is 2.60pc.

If the wall thickness was to increase it would be prudent to use the logarithmic expression as this accounts for the change in area which becomes more important the thicker the pipe wall.

However, as no dimensions have been provided for the pipe wall thickness we can assume that the pipe wall is this and thus have a negligible effect impact.

Determining the width of the plate:

W=2πr_(mean )
Submit
Privacy policy Terms and Conditions