using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IStation.Formula
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{
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/// <summary>
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/// 计算辅助类
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/// </summary>
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public class CalcuHelper
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{
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#region 计算效率
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/// <summary>
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/// 计算效率
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/// </summary>
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/// <param name="q"> 瞬时流量 m³/h</param>
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/// <param name="h"> 扬程 m</param>
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/// <param name="p"> 功率 kw</param>
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/// <param name="ρ"> 密度 kg/m^3</param>
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/// <param name="g"> 重力加速度 m/s^2</param>
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/// <returns>百分数</returns>
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public static double CalculateE(double q, double h, double p, double ρ, double g)
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{
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q = q / 3600;
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p = p * 1000;
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double e = 0;
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if (p < 0.1)
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return e;
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e = ρ * g * q * h / p;
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return Math.Round(e * 100, 2);
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}
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/// <summary>
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/// 计算效率
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/// </summary>
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/// <param name="q"> 瞬时流量 m³/h</param>
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/// <param name="h"> 扬程 m</param>
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/// <param name="p"> 功率 kw</param>
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/// <returns>百分数</returns>
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public static double CalculateE(double q, double h, double p)
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{
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return CalculateE(q, h, p, ConstantParas.WaterDensity, ConstantParas.g);
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}
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/// <summary>
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/// 计算效率
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/// </summary>
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/// <param name="q"> 瞬时流量 m³/h</param>
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/// <param name="h"> 扬程 m</param>
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/// <param name="p"> 功率 kw</param>
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/// <param name="ρ"> 密度 kg/m^3</param>
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/// <returns>百分数</returns>
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public static double CalculateE(double q, double h, double p, double ρ)
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{
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return CalculateE(q, h, p, ρ, ConstantParas.g);
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}
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#endregion
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#region 计算功率
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/// <summary>
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/// 计算功率
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/// </summary>
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/// <param name="q">瞬时流量 m³/h</param>
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/// <param name="h">扬程 m</param>
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/// <param name="e">效率 百分数</param>
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/// <param name="ρ">密度kg/m³</param>
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/// <param name="g">重力加速度 m/s²</param>
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/// <returns>kw</returns>
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public static double CalculateP(double q, double h, double e, double ρ, double g)
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{
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q = q / 3600;
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e = e / 100;
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double p = 0;
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if (e < 0.01)
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return p;
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p = ρ * g * q * h / e;
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p = p / 1000;//换算成kw
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if (p < 2)
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return Math.Round(p, 4);
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if (p < 30)
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return Math.Round(p, 3);
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if (p < 100)
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return Math.Round(p, 2);
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return Math.Round(p, 1);
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}
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/// <summary>
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/// 计算功率
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/// </summary>
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/// <param name="q">瞬时流量 m³/h</param>
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/// <param name="h">扬程 m</param>
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/// <param name="e">效率 百分数</param>
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/// <param name="ρ">密度kg/m³</param>
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/// <returns>kw</returns>
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public static double CalculateP(double q, double h, double e, double ρ)
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{
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return CalculateP(q, h, e, ρ, ConstantParas.g);
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}
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/// <summary>
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/// 计算功率
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/// </summary>
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/// <param name="q">瞬时流量 m³/h</param>
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/// <param name="h">扬程 m</param>
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/// <param name="e">效率 百分数</param>
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/// <returns>kw</returns>
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public static double CalculateP(double q, double h, double e)
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{
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return CalculateP(q, h, e, ConstantParas.WaterDensity, ConstantParas.g);
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}
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#endregion
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#region Mpa<=>m
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/// <summary>
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/// Mpa=>m
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/// </summary>
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public static double Mpa2M(double mpa)
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{
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return mpa * ConstantParas.WaterDensity / ConstantParas.g;
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}
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/// <summary>
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/// m=>Mpa
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/// </summary>
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public static double M2Mpa(double m)
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{
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return m * ConstantParas.g / ConstantParas.WaterDensity;
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}
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#endregion
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#region 计算用电量
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/// <summary>
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/// 计算用电量
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/// </summary>
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/// <param name="p">功率kw</param>
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/// <param name="t">时间h</param>
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/// <returns>kw*h</returns>
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public static double CalculateD(double p, double t)
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{
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return p * t;
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}
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#endregion
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#region 计算累积流量
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/// <summary>
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/// 计算累积流量
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/// </summary>
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/// <param name="q">瞬时流量m³/h</param>
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/// <param name="t">时间h</param>
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/// <returns>m³</returns>
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public static double CalculateQt(double q, double t)
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{
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return q * t;
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}
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#endregion
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#region 计算能耗
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/// <summary>
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/// 计算千吨能耗
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/// </summary>
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/// <param name="p">功率kW</param>
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/// <param name="q">瞬时流量m³/h</param>
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/// <returns>kW·h/km³</returns>
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public static double CalculateWP(double p, double q)
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{
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if (q < 0.1)
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return 0;
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return p / q * 1000;
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}
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/// <summary>
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/// 计算单位能耗
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/// </summary>
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/// <param name="p">功率kW</param>
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/// <param name="q">瞬时流量m³/h</param>
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/// <param name="h">扬程m</param>
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/// <returns>kW·h/km³</returns>
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public static double CalculateUWP(double p, double q, double h)
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{
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if (q < 0.1)
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return default;
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if (h < 0.1)
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return default;
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return p / q / h * 1000;
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}
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#endregion
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}
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}
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