Civil Engineering Pack 对比 Boiler Efficiency 的使用情况和统计数据

Civil Engineering Pack contains 12 Modules with 484 Calculators. Structural Engineering -58 Calculators & Formulas. Concrete Engineering -56 Calculators. Beam Engineering -56 Calculators. Column Construction Calc. -56 Calculators. Concrete Engineering -56 Calculators. Piles & Piling Calculators. Engineering Survey - 33 Calculators. Soil and Earthwork - 60 Calculators. Hydraulics and Waterworks - 94 Calculators. Highways and Roadwork - 37 Calculators. Timber Engineering - 55 Calculators. Bridge Engineering 58 -Calculations Unit Converters for 32 Civil Engg Parameters. STRUCTURAL : • Shear Capacity of Flexural Members • Critical Ratio • Effective Length Factor • Slenderness Ratio • Allowable Compressive Stress of Columns (Slenderness Ratio (lesser) Critical Ratio) • Allowable Compressive Stress of Columns (Slenderness Ratio greater than Critical Ratio) • Safety Factor 8.Maximum load - Axially Loaded Members • Allowable Bending Stress (Compact Members) • Allowable Bending Stress (NonCompact Members) and more... up to 58 Calculators. CONCRETE : • Water/Cementitious Materials Ratio • Job Mix Concrete Volume • Modulus of Elasticity • Tensile Strength • Compressive Stress - Beam • Stress in Reinforcement - Beam • Cross-sectional Area of Tensile Reinforcing - Beam • Cross-sectional Area of Compressive Reinforcing - Beam • Stress - Extreme Fiber of Concrete • Stress - Compressive Reinforcing Steel • Stress - Tensile Reinforcing Steel and more... up to 56 Calculators. HYDRAULICS : • Capillary Rise • Viscosity • Kinematic Viscosity • Hydrostatic Pressure - Submerged Curved Surface • Pressure Head • Velocity Head • True Velocity Head • Specific Energy Head • Head Loss (Bernoulli Equation) • Total Energy - Elemental Volume of Fluid • Total Head of Flowing Fluid • Average Velocity of Flow and more up to 94 Calculators. SOIL & EARTHWORK : • Water Content of a Soil Sample (Volumetric) • Water Content of a Soil Sample (Gravimetric) • Void Ratio • Degree of Saturation • Degree of Saturation (Based on Void Ratio • Porosity • Dry Unit Weight of a Soil Specimen • Relative Density of Cohensionless Soils (Based on Void Ratio) • Relative Density of Cohensionless Soils (Based on Dry Unit Weight of Soil) • Plasticity Index • Liquidity Index • Shrinkage Index and more up to 60 Calculators. ENGINEERING SURVEY: • Standard Deviation (Series of Observations) • Probable Error (Single Observation) • Probable Error (Combined Effects of Accidental Errors) • Error of the Mean (Based on Combined Effects of Accidental Errors) • Error of the Mean (Based on Specific Error of a Single Measurement) • Specified Error of a Single Measurement • Probable Error of the Mean • Temperature Correction • Measurement Correction on a Slope and more up to 33 Calculators. TIMBER :• Area of Section (Rectangular and Square Beam) • Moment of Inertia (Rectangular and Square Beam) • Distance from Axis to Extremities of Section (Rectangular and Square Beam) • Radius of Gyration (Rectangular and Square Beam) • Section Modulus (Rectangular and Square Beam) • Maximum Fiber Stress (Rectangular Timber Beam) • Maximum Fiber Stress using Section Modulus (Rectangular Timber Beam) • Horizontal Shearing Stress (Rectangular Timber Beam) • Modified Total End Shear (Concentrated Loads) and more up to 55 Calculators. HIGHWAY & ROAD : • Radius of Curve - Arc Definition (Circular Curves) • Radius of Curve - Chord Definition (Circular Curves) • Degree of Curve - Arc Definition (Circular Curves) • Degree of Curve - Chord Definition (Circular Curves) • Tangent Distance (Circular Curves) • External Distance (Circular Curves) • Midordinate (Circular Curves) • Length of Curve (Circular Curves) and more up to 37 Calculators. and 32 Unit Converters such as • Pressure Converter • OMG we ran out of space. find rest in App. 36

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Boiler Efficiency

BoilerFE can run a quick preliminary audit on boiler efficiency and various losses associated in generation of pressurized steam. Users can create their specific boiler application including CHP (Brayton) cycle by editing default generic boiler and save it in a file for time to time performance review. Thus it would also enable users to compare different grade of fuels used in the same boiler under similar conditions. Therefore, this app can be very helpful to energy engineers and auditors in assessing the potential savings as well as to identify areas for improvement. App covers different types of boilers including CHP with option to select fuels such as coal, oil and gases with specific compositions. Following is the list of fuels under each category one can select from the picker. Each fuel has a default calorific value (HHV) based on certain composition. Users can edit this default value for accuracy. For fuels that are not in the list, users can create a custom fuel with composition and calorific value. Coal: Coal-Illinois, Coal-Pennsylvania, Coal-Ohio, Coal-W.VA, Coal- Kentucky, Coal, Custom. Fuel Oil: Furnace Oil#1, Furnace Oil#2, Furnace Oil#3, Furnace Oil#4, Furnace Oil#5, Furnace Oil#6, LSHS, Methanol, Ethanol, LPG, Kerosene, HSD, Custom. Gas: Methane, Ethane, Propane, Butane, Natural gas, Custom. By default, App uses a generic Coal fired in an industrial boiler that can be edited for more specific applications. The screen shots displays this example with results on heat balance sheet, flue gas analysis and stoichiometry. A brief description of the combustion model used in this app is also provided in App notes for reference. Type of boilers and inputs: App covers packaged, industrial and utility boilers with specific design data for efficiency and heat balance calculations. Users can conveniently choose the different unit standards for data input. Input such as airflow, fuel type and feed rate can be edited for more specific application using the respective editable tool bar buttons. There is a separate section on CHP (Brayton) cycle that is activated from Boiler info screen. All CHP data can be saved as well with unique titles and reloaded as and when required. Foot notes are provided to help edit different input parameters. Result: Besides computation of boiler efficiency using direct method, app provides the following results as shown in the screen shots. 1.Heat balance sheet 2.Flue gas analysis 3.Stoichiometric analysis of the combustion process. In this version, the app notes has the link for a complete documentation of implementation and validation of math-model used in individual apps. Also in addition this document includes guidelines to plan periodic maintenance activities required for a satisfactory performance of different energy intensive equipment such as boiler, pump, heat exchangers etc. commonly used in process industries.