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+{
+"cells": [
+ {
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "# Chapter 16: Wind Turbines"
+ ]
+ },
+{
+ "cell_type": "markdown",
+ "metadata": {},
+ "source": [
+ "## Example 16.1: Wind_turbine_output_100_kW.sce"
+ ]
+ },
+ {
+"cell_type": "code",
+ "execution_count": null,
+ "metadata": {
+ "collapsed": true
+ },
+ "outputs": [],
+"source": [
+"// scilab Code Exa 16.1 Wind turbine output 100 kW\n",
+"\n",
+"c_u=48*5/18; // wind upstream velocity in m/s\n",
+"n=0.95; // overall Efficiency of the drive\n",
+"P=100; // aerogenerator power output in kW\n",
+"n_m=0.9; // mechanical Efficiency of the drive\n",
+"n_a=0.7; // aerodynamic Efficiency\n",
+"ro=1.125; // density of air in kg/m3\n",
+"cp_max=0.593; // power coefficient for the windmill(Pi/Pu)\n",
+"\n",
+"// part(a) propeller diameter of the windmill\n",
+"A=2*P*1e3/(ro*(c_u^3)*n*n_m*n_a*cp_max);\n",
+"d=sqrt(4*A/%pi);\n",
+"disp('m',d,'(a)the propeller diameter of the windmill is')\n",
+"\n",
+"// part(b)\n",
+"disp('(b)corresponding to maximum power')\n",
+"c=2*c_u/3;\n",
+"disp('m/s',c,'the wind velocity through the propeller disc is')\n",
+"delp1_a=5*ro*(c^2)/8;\n",
+"disp('mm W.G.',delp1_a/9.81,'the gauge pressure just before the disc is')\n",
+"delp2_a=-3*ro*(c^2)/8;\n",
+"disp('mm W.G.',delp2_a/9.81,'the gauge pressure just after the disc is')\n",
+"Fx=(delp1_a-delp2_a)*A;\n",
+"disp('kN',Fx*1e-3,'and the axial thrust is')"
+ ]
+ }
+],
+"metadata": {
+ "kernelspec": {
+ "display_name": "Scilab",
+ "language": "scilab",
+ "name": "scilab"
+ },
+ "language_info": {
+ "file_extension": ".sce",
+ "help_links": [
+ {
+ "text": "MetaKernel Magics",
+ "url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
+ }
+ ],
+ "mimetype": "text/x-octave",
+ "name": "scilab",
+ "version": "0.7.1"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}