Calculate the optimal values of area and flow rate of water, Physics

The heat-rejection system for a condenser of a steam power plant is to be designed for minimum first plus pumping cost. The heat-rejection rate from the condenser is 14MW. The following costs in dollars must be included:

First cost of cooling tower, 800A^0.6, where A =area,m2

Lifetime pumping cost, 0.0005w^3, where w=flow rate of water, kg/s

Lifetime penalty in power production due to elevation of temperature of cooling water, 270t, where t=temperature of water entering the condenser, C

The rate of heat transfer from the cooling tower can be represented adequately by expression q, W=3.7(w^1.2)tA

(a)    determine the minimum lifetime cost

(b)   calculate the optimal values of A and w

Posted Date: 2/28/2013 5:27:11 AM | Location : United States







Related Discussions:- Calculate the optimal values of area and flow rate of water, Assignment Help, Ask Question on Calculate the optimal values of area and flow rate of water, Get Answer, Expert's Help, Calculate the optimal values of area and flow rate of water Discussions

Write discussion on Calculate the optimal values of area and flow rate of water
Your posts are moderated
Related Questions
moment of inertia theory and easy diagrams

What is an alloy? An alloy is a homogeneous hybrid of two or more elements, at least one of which is a metal, and where the resulting material has metallic properties. The resu

Radiography and depletion of Ozone layer: What is Radiography?  A. The method in which soft X-rays are used in medical diagnosis is called radiography. What are the uses

What does gravitational force depend on? Gravitational force depends on mass and distance. Therefore, the formula for calculating gravitational force among two objects with

If we have to strain a ferromagnetic crystal along certain direction, we would change the inter atomic spacing not only along this direction but also in other direction. And hence

Derive the mathematical relation connecting n,u,v and R for refraction at a spherical surface concave towards a point object in a denser medium.

what type of charge carriers are involved in conduction?

A ray of light is incident on one of the faces of a parallel sided glass slab at an angle of incidence 510 31' of thickness 0.12 m . Evaluate the lateral shift produced given refra

A solar cell or photo voltaic cell is a semiconductor device that converts photons from the sun into electricity. It can also be defined as a semiconductor electrical junction appa

A ball dropped from a balloon at rest clears a tower  81m high during the last quater second of its journey. Find the height of the balloon and the velocity of the body when it rea