Converter Lab

 Compressor Lab Essay

School of Trinidad & Tobago

S. Farrenheit. T. I actually Campus

Laboratory: Chemical Kinetics

Name:

Captain christopher Boodram

Aketta Wylie

Simeon Mohammed#110004795

Salomon Samaroo #111006223

Program: Chemical Engineering Technology

* Cohort: 11

* Course: Physical Chemistry and Thermodynamics

2. Course Code: PCTH210D

5. Instructor:

Title: Centrifugal Compressor

Introduction:

The equipment comprises of a 7-stage centrifugal compressor driven by an electric electric motor mounted on an assistance plinth. Crystal clear acrylic inlet and outlet ducts they covered the air compressor to allow air passing through the unit to be monitored. Appropriate detectors are integrated on the device to facilitate analysis from the compressor overall performance when connected to a suitable microcomputer via an IFD User interface Console. Besides the tappings required by the pressure sensors, additional tappings are included in the system to allow ideal calibration devices to be linked. The stream of air through the compressor is controlled by a accelerator control device set up at the quit of the discharge duct. Rotation of the back of the shirt opens and closes a variable aperture which allows the head/flow made by the compressor to be various.

NOMENCLATURE

Factors

Symbol| Term| Units

dpo| Pressure drop across the orifice plate| N/m2 (Newtons per rectangular meter) viewed as Pa (Pascals) (1Pa = 1N/m2)| Dps| Pressure drop across the compressor| N/m2 (Newtons per square meter) displayed because Pa (Pascals)| N| Revolving speed of the compressor| Hz (Hertz)

Ta| Air temperature at converter inlet| Вє C (Celsius)| Pe| Input power to the motor| Watts (Watts)

Constants

Symbol| Term| Units

Pa| Ambient barometric pressure| Pa (Pascals)

Pi| Physical constant| Dimensionless number

d| Hole plate diameter| m (meter)

Cd| Orifice launch coefficient| Dimensionless number| g| Gravitational acceleration| m/s2 (meters per second per second)| A1| Mix sectional part of the fan inlet| m2 (square meters)| A2| Cross sectional area of the enthusiast outlet| m2 (square meters)

Calculated variables

Symbol| Term| Units

Rho| Density of air| kgm3 (kilograms per cubic meter)

Qv| Quantity flow rate| m3/s (cubic meters every second)

V1| Velocity in the duct by fan inlet | m/s (meters per second)| V2| Velocity inside the duct in fan outlet | m/s (meters every second)| ptF| Fan total pressure produced| Pa (Pascals)

Pu| Supporter power output| W (Watts)

Egr| Overall efficiency| Percentage

Formulae Utilized

Rho=3. 468Г—pa1000Г—(273+Ta)

Qv=CdГ—PiГ—d2Г—2Г—RhoГ—dpo4Г—Rho

V1=QvA1

V2=QvA2

ptF=V22-V12Г—Rho2+dps

Pu=QvГ—ptF

Egr=PuPeГ—100

Objective:

To assure users completely understand the change of tested units of quantity to people of the variables necessary to calculate compressor performance.

Theoretical History:

The basic terms used to define, and therefore evaluate, compressor functionality include (i) Discharge,

(ii) Compressor pressure,

(iii) Electrical power input and efficiencies.

Every single of those is considered in becomes.

(i) Relieve Qv

The discharge, or perhaps flow rate or capacity, of a compressor is the volume of fluid circulated per product time. In SI units, this is expressed in cubic meters per second, m3/s. The Armfield FM doze unit uses an spray hole plate inside the compressor outlet duct to measure Qv, according to the conventional relationship between your measured pressure drop dpo across the spray hole and the flow rate: --

Qv=Cd×Pi×d2×2×Rho×dPo4×Rho ……….. (4)

Exactly where Cd is the orifice discharge coefficient

The correct constants required to use this formula for deducing discharge Qv from dPo are given in the software. Likewise is the tuned of the hole necessary to verify these principles of parameters from the software program.

(ii) Air compressor Pressure

The term ‘compressor pressure' refers to the sum from the...