Answer Posted / ahmed

Dirty intercoolers—Increased air temperature reduces air
density into the compression stage, resulting in reduced
stage pressure ratio and reduced rise to surge.
Dirty inlet filter—Reduces the pressure into the first
stage, resulting in a lower natural surge point. A lower
natural surge point reduces the throttle range.
Hot coolant—Increased air temperature reduces air density
into the compression stage, resulting in reduced stage
pressure ratio and reduced rise to surge.
Hot inlet air—Increased air temperature to the first stage
reduces air density into that stage, resulting in reduced
stage pressure ratio. Since pressure is multiplied as air
moves through a multistage compressor, the first stage has
the most dramatic effect on rise to surge.
Driver input speed—Ability for a centrifugal compressor
stage to make pressure decreases as the square of the stage
speed. A reduction in driver input speed dramatically
affects the total machine pressure ratio and the rise to surge.

what is the job responsilties of Sr. engineer in QA/QC deptt.

2087

---

In which process fluid expands but does no work ?

1091

---

how to calculate cg of transformer

2341

---

what is the equvalent indian material code for EN10025/2- S75JR

2938

---

Define tons of refrigeration and cop.

1261

---

Explain important rules that must be kept in mind while designing castings?

1090

---

Draw L.O. system in diesel engine?

1954

---

What is "H7014C/HQ1P4 BEARING" means ???

1852

---

what is routh,s law in thermal engineering ?

2188

---

What are the causes of low compression in the main engine?

1920

---

i want to know what r the various job in government as well as central government, for mechanical engineers. can any one answer plz

2011

---

What is a machine shop?

1102

---

Name the safety devices of diesel engine?

2008

---

what is the three types of combustion-control system?

2421

---

What are the causes of positive and negative propeller slip?

4038

---