Questions
How to make evaporator, types of evaporator, materials and formulas to find out its properties, please...

How to make evaporator, types of evaporator, materials and formulas to find out its properties, please elaborate everything about evaporator.

In: Mechanical Engineering

How to make fresh water generator more efficiently, how to start this project and complete, please...

How to make fresh water generator more efficiently, how to start this project and complete, please elaborate step by step.

In: Mechanical Engineering

a Explain circumstances in which it is responsible to improve maintainability to counteract poor reliability and...

  1. a Explain circumstances in which it is responsible to improve maintainability to counteract poor reliability and identify circumstances where this approach is unrewarding.

b the expression for steady-state availability of a single element is:

A(t) = µ/(λ+µ)

Explain what is meant by a steady state. State the meaning of meanings of the symbols µ and λ, and the assumptions inherent in the expression.

In: Mechanical Engineering

Steam at a pressure of 1.9 MN/m2 and with a temperature of 220oC is expanded to...

Steam at a pressure of 1.9 MN/m2 and with a temperature of 220oC is expanded to a pressure of 0.32 MN/m2 according to the law PV1.3 = constant. It is then further expanded to a pressure of 0.12 MN/m2. Determine

a. The final condition of the steam
b. The total work done

In: Mechanical Engineering

A 4-cylinder ammonia compressor with a bore 0.04 m & stroke 0.03 m running 2500. The...

A 4-cylinder ammonia compressor with a bore 0.04 m & stroke 0.03 m running 2500. The system operates in a simple VCC with evaporating & condensing temperatures zero C & 40 C, respectively generating cooling capacity 5 tons.
Determine:
a. Draw the PH diagram indicating all enthalpies & sp. vol.
b. Piston displacement, m3/sec
c. Suction Volume, m3/sec
d. Volumetric efficiency
e. Mass of refrigerant, kg/sec
f. Work of compressor, kW

In: Mechanical Engineering

Consider a space with a peak load of 18 kW with sensible heat factor, SHF, of...

Consider a space with a peak load of 18 kW with sensible heat factor, SHF, of the space is equal to 0.65. The space is maintained at 25 deg C and 50% RH. Find the appropriate condition (temperature and RH) of air entering the space. Also estimate the volumetric flow rate required in L/s.

Show your calculations for at least two iterations with assumed inlet temperature of the air, Ta,i.

In: Mechanical Engineering

a) How is 4 industrial revolution related to mechanical engineering? b) What are 4 industrial Revolution  technologies...

a) How is 4 industrial revolution related to mechanical engineering?

b) What are 4 industrial Revolution  technologies used in engineering?

In: Mechanical Engineering

this is fluid mechanics question a)sketch performance curve of a pump on a head against volumetric...

this is fluid mechanics question

a)sketch performance curve of a pump on a head against volumetric flow rate axis

b) label shutoff and delivery points.

c) on the same axis sketch a system curve and label operating point.

In: Mechanical Engineering

sketch label and describe of an agitated vessel include the impeller and suggest suitable impeller for...

sketch label and describe of an agitated vessel include the impeller and suggest suitable impeller for a high-viscosity liquid

In: Mechanical Engineering

Carbon dioxide gas [M = 44.01 kg/kmol, R = 0.1889 KJ/(kg.K) & Tcr = 304.2 K]...

Carbon dioxide gas [M = 44.01 kg/kmol, R = 0.1889 KJ/(kg.K) & Tcr = 304.2 K] is compressed steadily in a water-cooled compressor from PR1 = 0.15 and T1 = 365 K to PR2 = 2 and T2 = 580 K at a rate of 6 kg/s. The heat rejected to the cooling water is 1058 kW. Using the generalized charts and ideal gas tables, the required power input to the compressor in kW is:

In: Mechanical Engineering

this is fluid mechanics question a)sketch performance curve of a pump on a head against volumetric...

this is fluid mechanics question

a)sketch performance curve of a pump on a head against volumetric flow rate axis

b) label shutoff and delivery points.

c) on the same axis sketch a system curve and label operating point.

In: Mechanical Engineering

Discuss the issues related to flight stability and the use of passive and active control?

Discuss the issues related to flight stability and the use of passive and active control?

In: Mechanical Engineering

a) Describe the specific energy. b) In the rectangular duct, analyze the flow (Q) as a...

a) Describe the specific energy.

b) In the rectangular duct, analyze the flow (Q) as a function of depth (y) for constant specific energy (E = E0).

c) Define critical depth (yc) and critical speed (Vc) for this case.

d) Plot the flow (Q) - depth (y) graph and show the regimes of the flow.

In: Mechanical Engineering

A chilled-water heat-exchange unit is designed to cool 5 m3/s of air at 100 kPa and...

A chilled-water heat-exchange unit is designed to cool 5 m3/s of air at 100 kPa and 30°C to 100 kPa and 18°C by using water at 8°C. Determine (i) the maximum water outlet temperature and (ii) the total power consumed in KW-h, if the heat exchanger operated non-stop for 21 days. Assume the mass flow rate of the water is 2 kg/s.

In: Mechanical Engineering

Explain why bonding between carbon fibers and an epoxy matrix should be excellent, whereas bonding between...


Explain why bonding between carbon fibers and an epoxy matrix should be excellent, whereas bonding between silicon nitride fibers and a silicon carbide matrix should be poor? Q2- Explain briefly Ceramic-Matrix Composite?

In: Mechanical Engineering