-
Find Us
Zhengzhou, China
-
Online Us
24-hour service
The formula for the electric power is P 2 r v one watt is calculated as 1 W 1 kg m s Example an offshore wind turbine with a radius of 80 meters at a wind speed of 15 meters per second has a power of 163 megawatts if air density and efficiency factor have the given values
Formula to calculate hydropower How to calculate output power of a hydroelectric turbine The simplest formula is Where P Mechnical power in kW Q flow rate in the pipe m3s density kgm3 g Acceleration of gravity ms H waterfall height m global efficiency ratio usually between 07 and 09 Calculator
Aug 22 2015 sfg 68234 kJkgK s 68826 kJkgK sf x sfg where x is the quality of the vapor doing the algebra and solving for x 0870 or a vapor quality of 87 The enthalpy of this mixture can be calculated using the saturated liquid properties hf 28927 kJkg hfg 23353 kJkg
May 10 2020 Vacuum efficiency Actual vacuum in condenser X 100Max Obtainable vacuum 089 X 100095 936 Example3 The volume of condenser which contains 0162 kg of air with steam is 42 m3Temperature in the condenser is 42 deg C and there is some water in the condenser Determine the pressure in the condenser
how to calculate charge in ball mill Description Calculations for mill motor power mill speed and media charge L Internal length of the mill in cms after lining how to calculate sag mill ball charge BINQ Mining Jan 01 2013 TechnoMine Services LLC mill charge and speed
Jul 01 2015 To evaluate the performance of an existing compressor the objective is to calculate the compressor efficiency and power requirement Known and measured properties are a Standard condition gas volume flow rate q S or gas mass rate b Gas composition z i c Suction pressure P 1 and temperature T 1 d
Power Coefficient Its an Efficiency I would like to call it and some people do overall turbine system efficiency The wind power industry often calls it the Power Coefficient and gives it the symbol Cp The technical and product literature is now full of it the term Cp I mean so Power Coefficient it shall be for the rest of this page
Silesian University of Technology Institute of Power Engineering and Turbomachinery Konarskiego 18 44100 Gliwice Poland Abstract In the paper a calculation methodology of isentropic eciency of a compressor and turbine in a gas turbine installation on the basis of polytropic eciency characteristics is presented A gas turbine model is
mill test the calculation method of the mill energy specific cumulative grinding rates is shown by the following example Using plant data the value of E is the specific energy input to the solid material as it passes through the plant mill the mill power draw divided by the mill
The actual available power from a wind mill with diameter 1 m efficiency 02 20 with wind velocity 10 ms can be calculated as Pa 02 12 kgm3 1 m2 10 ms3 8 942 W Related Mobile Apps from The Engineering ToolBox
May 22 2019 Thermal Efficiency of Steam Turbine In modern nuclear power plants the overall thermal efficiency is about onethird 33 so 3000 MWth of thermal power from the fission reaction is needed to generate 1000 MWe of electrical power The reason lies
Jan 24 2009 Efficiency in Extracting Wind Power Betz Limit amp Power Coefficient Power Coefficient Cp is the ratio of power extracted by the turbine to the total contained in the wind resource Cp Pto the total contained in the wind resource Cp P TP W Turbine power output P T A v 3 Cp The Betz Limit is the maximal possible
Mar 17 2015 Step 4 Calculate Steam Turbine Energy Out and Generation Power Out Energy Out Inlet Specific Enthalpy Outlet Specific Enthalpy Mass Flow Power Out Energy Out Generator Efficiency
Now that we have expressions for the power extracted at the turbine and the total power available from the wind we can now create an expression for the efficiency of the of the ideal wind turbine Using the results from equations 10 and 13 the efficiency factor is
May 15 2015 In general therefore the required mill power is calculated using the following equation where n is the number of efficiency factors EFi used and fo is the feed rate of new ore to the mill The power calculated from equation 2 can be looked up in published tables Rowland and Kjos 1978 and the correct mill size and type can be selected
energy in the generator The calculation of efficiency in this paper is based on the mechanical torque generated by the wind turbine and the analysis is based on the efficiency of the generator Note that several forms of loss occur in the power generation process in a wind generator and a portion of the energy is lost as heat
May 26 2015 Calculation of Turbine Efficiency 1 Calculation of Turbine Efficiency Data Available Inlet steam flow 675 Tehr Inlet steam pressure 1085 Kgcm2 g Inlet steam temperature 501 C Extraction steam flow 49 Tehr Extraction steam pressure 25 Kgcm2 g Extraction steam temperature 334 C Condensed steam flow 185 Tehr
Calculation of the power draw of dry multicompartment ball mills 225 The mill load that is the volume of charge in the mill is the principal determinant of power draw Estimation of the ball load that is mixed with the cement charge is difficult and can be highly erroneous So direct measurement must be taken for calculation of mill load
Turbine SteamConsumption Calculator v24 This free program will calculate the steam consumption for a turbine of known power and efficiency The required data are the inlet steam pressure and temperature and the exhaust pressure The program will determine the specific and actual steam consumption and the outlet steam enthalpy entropy temperature and quality
Mar 26 2021 The power coefficient of each turbine type is unique and will be unique in the wind speed the turbine is operating in The true maximum power efficiency is usually lower than the Betz Limit at 035045 even in premium wind turbines Once other factors of the wind turbine system such as the gearbox bearings and generator are taken into
Dec 12 2016 If P is less than 80 passing 70 microns power consumption will be Ball Mill Power Calculation Example A wet grinding ball mill in closed circuit is
In this article we seek to define gas turbine efficiency calculation and review how to reduce fuel consumption Expression of Gas Turbine Efficiency Unlike the steam turbine calculating the efficiency of a gas turbine is a bit complicated A GT presents
Jan 26 2010 Calculate the energy of wind per unit mass if the power available at the rotor of a wind turbine is 699 kW diameter of the rotor D 88 m Air density 123 kgm3 and Power
Mar 17 2015 Calculation Details Step 1 Determine Inlet Properties Using the Steam Property Calculator properties are determined using Inlet Pressure and the selected second parameter Temperature Specific Enthalpy Specific Entropy or Quality The Specific Enthalpy is then multiplied by the Mass Flow to get the Energy Flow
To provide you with quality products.