Determine the flow area and the hub and tip radii

Assignment Help Mechanical Engineering

Reference no: EM131057353

A single-stage axial-flow gas turbine stage with a hub/tip ratio of 0.85 is to be designed to give a free-vortex flow after the rotor row and is required to develop 2.6 MW from a gas flow of 30 kg/s. The gas admitted is at a stagnation temperature and pressure of 1100 K and 430 kPa (abs) and the relevant gas properties are Cp = 1:15 kJ=kg and γ = 1:333. At the mean radius the blade speed is to be 250 m/s, the flow coefficient φ = 0:5, the absolute flow angle α2 = 67° , and the reaction is 0.5. The static pressure at exit is 1.02 kPa.

Sketch an appropriate velocity diagram for the stage and determine

a. the blade loading coefficient, ψ 5 ΔW=U2

b. the flow area and the hub and tip radii

c. the absolute tangential velocity components, cθ2 and cθ3, following the expansion through the nozzle

d. the reaction at the hub and tip.

Reference no: EM131057353

Questions Cloud

Summarize notable theories and previous research on topic : Describe your topic and illustrate its significance in relation to contemporary issues. Summarize notable theories and previous research on this topic, including at least three peer-reviewed studies.

Conduct market research for your target market : Conduct market research for your target market and document its demographic description. Gather the necessary demographic information you need to create a solid marketing mix for the next exercise

Conduct an industry analysis using porter five forces : Focusing on the company you are using for your final project, conduct an industry analysis using Porter's Five Forces and a SWOT analysis

What is a neurotransmitter and what is its function : What is a neurotransmitter and what is its function? What neurotransmitter is mentioned in the article, "How does the brain handle long-term stress?" How is short-term stress described in this article?

Determine the flow area and the hub and tip radii : A single-stage axial-flow gas turbine stage with a hub/tip ratio of 0.85 is to be designed to give a free-vortex flow after the rotor row and is required to develop 2.6 MW from a gas flow of 30 kg/s.

What contribution biotechnology brings to society : Select an example of an advancement made in biotechnology (e.g. pharmacogenetics, stem cells, GMOs, de-extinction, etc.). Describe the specific advancement and what contribution it brings to society.

Question regarding the prewriting techniques : Many of us have already had experiences with some or all of the prewriting techniques that we've reviewed in this lesson. We've also probably had varying degrees of success utilizing particular techniques.

Information technology security : Based upon your acadeic opinion, what else could be done to increase information technology security?

What standards are used by courts to determine : What standards are used by courts to determine who is an expert witness? What standards are used by courts to determine the admissibility of expert testimony?

User Account

All Pages