Compressor Definition and 186 Threads

Air Compressor: What would "twin-cylinder" mean? I'm figuring out details about an old compressor and it's made by a Greek Company. I can't find too many details but one part that confuses me is it says "twin cylinder". Picture below. Specs say: Oil lubricated twin-cylinder...

Is this gas turbine engine compressor discharge air temperature calculation relatively accurate? Problem: Calculate the compressor discharge air temperature in ºF of the following gas turbine engine compressor core specifications. Gas Turbine Engine Compressor Core Specifications...

Homework Statement Air enters a compressor operating at steady state with a pressure of 14.7 lbf/in2, a temperature of 80°F and a volumetric flow rate of 18 ft3/s. The air exits the compressor at a pressure of 90 lbf/in2. Heat transfer from the compressor to its surroundings occurs at a rate...

Hi all, I'm planning to drive the automobile ac compressor via a BLDC motor instead of IC engine. This is only when the vehicle is parked. Now, I'm trying to determine torque requirement. Is my calculation correct? Power consumption: 1.46 kW compressor speed : 1000rpm...

compressor -- one-stage versus two-stage? whats the difference between a one stage compressor and a two stage compressor? And why do we sometimes use a two stage compressor and not a one stage compressor ?

Hey guys, I don't post here often but I like to come here when I have a problem that really rattles my brain. I am an 'overclocker' by hobby (I tune computers), a big part of the overclocking scene is cooling the processor of the computer as far as possible. For years now the 'best' way of...

Hello I have been trying to calculate the theoretical power required for compression of a small portable 2 stage compressor with the following spec. Volume flow rate Q = 2x10-5 m3/s Inlet pressure P1 = 1 Bar (105Pa) Outlet pressure = 200 Bar interstage pressure Px = 14 Bar k = 1.4 N...

A compressor is being used to adiabatically pressurize three moles of ideal gas from 5 bar and 150 C to 50 bar. Determine the minimum work that must be supplied to the compressor and the outlet temperature of the ideal gas. Assume the ideal gas has a constant pressure heat capacity of 29...

Let's say I have a precisely designed axial compressor, comprising of stages of rotor and stator wheels, that resembles something like this: Such a compressor, driven by a certain torque at a certain RPM, will deliver a certain air mass per time at a certain pressure. Now, what happens...

Respected Gentelmens please advice regarding to my queries. What would be required range of cfm of air compressor to lift a weight about 100 kg. and advice regarding small but effective air compressor available.

i have a 2001 chevy 3500 pickup i can't get the a/c compressor to kick on i replace everything and checked fuse i can jump it and it wil works, but i need it done right does anyone know what it might be

Hi, I have a weather balloon and I would filled it with He and attach some weight and I would release He as balloon climbs and it will eventually stops at some altitude. So now I wanted compressor to acts like an engine because air is thin at 20-30km and I would put solar panels to provide...

If anyone Have a Process Of Design Or any Designed Axial compressor can help me in my project ...cuz I have a Graduation project Of Design Axial compressor and I need Your Help pleasezzzzzzzzzzzzzzzzzz :)

Hello, I`m working on a mathematical model of a gas turbine and I need good compressor maps, especially function of efficiency vs. pressure ratio, inlet temperature, mass flow etc I`ve been looking for this for few days, but can`t find anything interesting. Do you know where I can...

the Dyson bladless fan relies on forcing air out along one side of the rim of a ring, so drawing air from the other side of the ring to create more airflow the household implementation of the fan uses an ordinary air compressor at the base to pump the air into the ring, and this creates a...

Hi, i'm comparing differents types of compressor to find out which one I'm going to convert into a turbine for my rankine cycle projet. And I'm wondering : are centrifugal compressors only for big power because the smallest i can find is 50 hp (which is the smallest turbo of garrett). I'm...

Hi there, after hours of frustration I've given in and come for help! I hope this isn't too long of a question, I really would appreciate any help I can get. :) I'm trying to work out the flow rate of gas down a pipe. My setup is simply an air compressor with a pipe coming out of it, with a...

Is it possible for a person to function as a human ZIP/RAR data compressor? Memorize a small amount of data and then use an algorithm to extract it? Ok so I had a friend who stole the answer-key to a huge multiple-choice final exam, which took 3 hours to complete, and must have had hundreds...

1.Hey friends I Want to Compress the image in order upload them in my website. I have scanned them now what i need to do is to reduce their size. For that i need open source software to compress them. so, will anybody help me for finding it. 2. Next problem is i have made graph using...

I have recently some research about Siemens turbine, specially SGT400 model. this type of turbine can be used as a generator and also as a compressor. Both of them has a core "core engine " http://www.energy.siemens.com/hq/en/power-generation/gas-turbines/sgt-400.htm I need to know is...

I have an electric compressor with a delivery rate of 17 SCFM. I would like to calculate the volume of the air tanks that are being charged by keeping track of how long the compressor runs while building air from pressure 1 to pressure 2. I believe that the following calculation is correct...

Air at 1 bar and 25°C continuously flows through a rigid compressor at a low velocity of 1 m/s. The air exits the compressor at 3 bar, and then enters a nozzle in which it expands adiabatically to a final velocity of 600 m/s at the initial conditions of temperate and pressure. Assume no change...

given the same volume and rate of air flow, which would be more efficient compressor between a rotary vane compressor and a bellow?

why convergent rather than divergent? is this to maintain the constant air velocity. Can someone explain this better to me. Would be helpfull

Hi, First time user here. I was hoping someone could help me calculate the CFM of air needed for an Air Compressor to air-clean 16 tubes. The Compressor is connected to a header that has 116 PSI of Pressure. The header is connected to 16 thin pipes that have nozzle tips with a 1.5 inch...

I need some help in understanding a few things about air compressors & in particular Centifugal Compressors, could someone help me out with this please. This is not homework, just me trying to understand. If a Centrifugal compressor is rated at "just for example only" 10bar pressure @ 100...

Could someone help me with getting an understanding of the equations for the power required to compress air please. I found this Calculator on the internet: http://www.engineeringtoolbox.com/horsepower-compressed-air-d_1363.html I am unsure if it is suitable or accurate enough etc. I see...

Hi, I have a fluid dynamic question. I need to know the volume airflow rate (cfm) for head loss calculations in my CTIS (central tire inflation system). My goal is to use this info to come up with an analytical model of the system. Our facility has an air compressor that is set to 72 psi...

Hi all, I am involve in a group assignment where a water compressor will be used to produce high pressured water. I would like to know if there a formula to calculate the amount of power needed to operate the water compressor. Thanks bluemoon2188

hello, i want the configuration of a compressor having capability of producing 1000 pound pressure in a min. is it possible to store that high pressure of compressed air in a cylinder having 2"(inches) diameter and 12"(inches) height? thank you.

OK race fans, I bought a pancake air cylinder from Mcmaster carr. Rated at 670 lbs at 100 psi and it fits under the rear wing mount and when compressed air is applied , the cylinder lifts the rear half of the race car. Problem is at the garage at the race course. The air compressor in the...

Hello, this is my first post, and it's not for any kind of homework, but rather for a work of fiction. From what I understand the Voitenko Compressor is a shaped charge which rapidly deforms a metal plate to accelerate the test gas. From reading a bit, it seems that this lead to a...

Hi everyone! I have a question and I would be so thankful if you could help me! For a Centrifugal Gas Compressor, if I have the flow rate, the input and output temperatures and pressures in specified rpm, then could I calculate its needed work, isentropic head and efficiency? how? Thanks! Sara

I am an engineer but have a rather dumb question regarding superchargers for engines and probably compressors in general. Most specifications are give as XXcfm at XX psi. I am trying to understand if this truly means we are moving that amount of air at the rated psi or if that means that...

Hello I am struggling with how a compressor's efficiency is calculated. This is the set up: I have a Garrett T3 compressor housing being spun by an electric motor. I can measure the airflow in, the airflow out, the pressure and temperature on both sides of the compressor, the power...

]Hi Guys Can you help me with this : If a compressor with a displacement of 10 meter cube hour is displacing gas with a pressure of 10 bar, it is displacing 100 meter cube hour ?? (10 meter cube x 10 bar) rgds Marco

Hi Guys I m thinking of making a Solar air compressor ie heating air in a closed vessel ( constant volume heat addition) using parabolic reflectors etc till reaches an optimum pressure At this point a check value opens, and the the pressurised air is made to pass through a heat exchanger (...

How to plot actual compressor performance on manufacturer" performance chart? Hi all, I have problem on plotting the actual compressor performance on manufacturer" performance chart. Can someone guide me? Please see the attached figure for detailed information. Thanks, EP

I need to replace an air conditioner compressor unit that sits on the 2nd floor walk way on my stilt home in the Florida Keys. The walk way is 24" deep and the original AC unit fit that dimension, however, the new unit is 31" square. When I install the new unit I would like to leave a 18" space...

I have a 2 stage reciprocating compressor that is set at a suction pressure of 120 psi and discharging at the second stage of 1160 psi. currently I have gas going in at intermediate pressure at 400 psi compressing about 15 mmscfd. My questions are this: 1. Will the compressor handle it if...

Hi all, does anyone knows of any good website that teaches you how to read turbine or compressor maps? And possibly teaches you how to select the best turbine / compressor for your particular application? Thank you!

hey guys besides solving the condensation problem what is the purpose of an aftercooler in a reciprocating air compressor??

Machine and compressor (how to solve this??) Okay all, my first post I am from Australia so not sure which unit you guys preferred in this forum. :smile: Got this project to swap our plant compressor to smaller unit. My compressor details: pressure: 7.5 Bar / 110 psi power: 30 KW / 40...

I would like sources for centrifugal compressor design. Anything, such as books, e-books, journals, websites, etc. will do.

I have to design a compressor that can compress air from atmosheric pressure to 4 atmosphere, with a mass flow rate of 50898.62 kg/h of compressed air. I am stuck between the choice of two types of compressors. They are: Centrifugal Compressor Axial Compressor I have looked at...

What's the general temperature of reciprocating compressors which are applied in Refrigerators and ACs? It will be good if you give me the temperature of the air which gets compressed...just need a rough idea. Thanks.

i recently went to a air compressor workshop. so i want to know what the core differences are in gas compressors and air compressors as the workshop didnt really explain that. cheers

Hi I was wondering if a simple 2 stage air compressor can be used as an air motor? And how can I go about transforming it? cheers

Hallo friends, I am doing simulation of compressor process. I have used the following equation to calculate compressor outlet Temperature and mass flow rate. mass flow rate (m) : flow from compressor map(m3/h)*compressor pressure/(R*Inlet temp*z) T_outlet :T1+ (head*(kappa-1)/...

hi in jet engine power generated for two purpose one is to drive the turbine, compressor and other accosseries Second is for the forward jet thrust take an example A engine generates 15000 lb thrsut. how to calculate the following power and mass flow how much amount of...