Evaluate the exit velocity

Assignment Help Mechanical Engineering
Reference no: EM131931

A pressurized water tank is used as a source of water for a fire hose. The pressure of the air in the top of the tank is 20 atm gauge. To be effective, the minimum exit velocity of the water from the hose has to be at least 20 m/s. The water supply pipe and hose consist of 10 metres of 50 mm inside-diameter pipe and hose. The average roughness height inside the pipe and hose is 0.05 mm. The system contains one 90° elbow and one flow control valve. The valve's K vs Closure % calibration curve is provided in Figure.

(a) State any assumptions related with this problem.

(b) Evaluate the valve closure (in %) to achieve a water exit velocity of 20 m/s.

(c) Evaluate the exit velocity when the valve is fully open.

The properties of water are: ρ = 1000 kg/m3 and µ = 1.00 x 10-3 N.s/m2.

Questions Cloud

 Determine the weighted average cost of capital : Determine the weighted average cost of capital and the weighted marginal cost (WMCC) for each range of total financin The marie simulator : Depending on how comfortable you are with using the MARIE simulator after reading Finds the value of a using a numerical method : Finds the value of a using a numerical method Online vs. face-to-face classes : Communication A significant distinction between online and face-to-face classes lies in the area of communication. Evaluate the exit velocity : Evaluate the valve closure to achieve a water exit velocity Create a consumer price index : Create a Consumer Price Index Create a database from scratch : Create a database from scratch that contains, at a minimum, the elements listed below Display contrasting approaches : This assessment task needs that groups examine two firms from the one industry that display contrasting (e.g. insurgent/defensive) approaches. Dihybrid two plants is done and seed pod shape is examined : A dihybrid cross of two plants is done and the seed pod shape is examined

Write a Review

Solve for the dynamics of the resulting system

Solve for the dynamics of the resulting system for 20 seconds of real time using midpoint method.

Write a paper on boyle''s law

Write a paper on Boyle's law and describe Compression and Combustion stroke . Also explain Charles's law and illustrate SI engine and CI engine.

Find the transfer function for the impulse response

Find the transfer function for the following impulse response

Find reciprocal lattice of the body-centred cubic structure

What is the minimum energy in the conduction band, and where can it be found in the Brillouin zone?

Package design

Package Design Brief: Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group.

Capabilities of solidworks motion manager

Prepare a power point presentation and a short report relating to the capabilities of Solidworks Motion Manager.

Prepare a journal paper on renewable energy

Prepare a Journal paper on Renewable Energy

Ways to ensure relevant base and safety loads

All calculations and assumptions must be provided together with a full explanation of all the terms

The Case for Global Accounting Standards

The role of IFRS in both developing and developed capital markets.

Level process control lab

Determination of the open-loop system

Calculate the value of forces

Calculate the value of forces P and Q for each test using the method of sections technique.

Unidirectional reinforced composites

Calculating the mechanical properties of unidirectionally reinforced composites