Determine for the cycle the thermal efficiency

Assignment Help Mechanical Engineering

Reference no: EM131137139

8.56 Water is the working fluid in a regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 lbf/in.2 and 10008F and expands to 120 lbf/ in.2, where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 2 lbf/in.2 Each turbine stage and the pump have isentropic efficiencies of 85%. Flow through the condenser, closed feedwater heater, and steam generator is at constant pressure. Condensate exiting the feedwater heater as saturated liquid at 120 lbf/in.2 undergoes a throttling process as it passes through a trap into the condenser. The feedwater leaves the heater at 1400 lbf/in.2 and a temperature equal to the saturation temperature at 120 lbf/in.2 The net power output of the cycle is 1 3 109 Btu/h. Determine for the cycle

(a) the mass flow rate of steam entering the first stage of the turbine, in lb/h.

(b) the rate of heat transfer, in Btu/h, to the working fluid passing through the steam generator.

Reference no: EM131137139

Questions Cloud

Using the bar codes in handling passengers baggage : An airport has been using the bar codes in handling passengers’ baggage. If the airport adopts the RFID technology in the baggage handling system, What benefits can we expect from the new technology? To reduce the operational disruptions by the new s..

How health behaviors within population contribute to risks : Explain how health behaviors within your population contribute to the risks observed and what factors perpetuate certain risk-related behaviors.

Choose one or two of these contemporary operations themes : Choose one or two of these contemporary operations themes that you believe are affecting a workplace (or an organization with which you are familiar). Explain how your organization is being affected by these trends in operations management?

Plan a dramatic play center : Plan a dramatic play center of your own. Begin by stating the theme of the center. - Give a summary of how the center would be designed.

Determine for the cycle the thermal efficiency : Water is the working fluid in a regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 lbf/in.2 and 10008F and expands to 120 lbf/ in.2, where some of the steam is extracted and diverted to the closed feedwat..

Conduct plan contrast for baseball versus football players : Make a graph for the data set. Use the five steps of hypothesis testing (report results in APA format). Figure the effect size of this study. Conduct a planned contrast for Baseball versus Football players (using Tukey's HSD).

Research project requires expensive specialized laboratory : Determine the interest rate at which the laboratory would be indifferent between Equipment B and Equipment C.

Find the adjusted misclassification rate : Produce the classification matrix for the sample as it stands and find the adjusted misclassification rate (adjusting for the oversampling).

Steps to keep america safe from terrorism : What are some of the most important steps you would advocate to keep America safe from terrorism? Explain why?

User Account

All Pages