engineeringtoolbox.comThe Engineering ToolBox

Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Free tools and information for engineering and design of technical applications. Steel Pipes - Thermal Expansion Loops Calculating and sizing steel pipe thermal expansion loops. Air - Thermophysical Properties Thermal properties of air at different temperatures - density, viscosity, critical temperature and pressure, triple point, enthalpi and entropi, thermal conductivity and diffusivity and more. Thermal Expansion - Linear Expansion Coefficients Linear temperature expansion coefficients for common materials like aluminum, copper, glass, iron and many more. Hot Air Balloons - Calculate Lifting Weights Calculate hot air ballons lifting forces. Poisson’s Ratio When a material is stretched in one direction it tends to get thinner in the other two directions. Air - Psychrometric Chart for Standard Atmospheric Conditions - Imperial Units Psychrometric chart for air at barometric pressure 29.921 inches of Mercury and temperature ranging 20 o F to 120 o F. UTM to Latitude and Longitude Converter Free online UTM to Latitude and Longitude coordinates converter. Water - Thermophysical Properties Thermal properties of water at different temperatures like density, freezing temperature, boiling temperature, latent heat of melting, latent heat of evaporation, critical temperature and more. Radians vs. Degrees Radian is the SI unit of angle. Convert between degrees and radians. Calculate angular velocity. Miter Saw - Calculate Sawing Angle Calculate miter saw protractor angles for skirting and decorative mouldings work. Friction - Friction Coefficients and Calculator Friction theory with calculator and friction coefficients for combinations of materials like ice, aluminum, steel, graphite and many more. Young’s Modulus, Tensile Strength and Yield Strength Values for some Materials Young’s Modulus (or Tensile Modulus alt. Modulus of Elasticity) and Ultimate Tensile Strength and Yield Strength for materials like steel, glass, wood and many more. Solids, Liquids and Gases - Thermal Conductivities Thermal conductivity coefficients for insulation materials, aluminum, asphalt, brass, copper, steel, gases and more. Water - Density, Specific Weight and Thermal Expansion Coefficients Definitions, online calculator and figures and tables with water properties like density, specific weight and thermal expansion coefficient of liquid water at temperatures ranging 0 to 360°C (32 to 680°F). Numbers - Square, Cube, Square Root and Cubic Root Calculator Calculate square, cube, square root and cubic root. Values tabulated for numbers ranging 1 to 100. W-Beams - American Wide Flange Beams Dimensions of American Wide Flange Beams ASTM A6 (or W-Beams) - Imperial units. Viscosity - Absolute (Dynamic) vs. Kinematic Vicosity is a fluid’s resistance to flow and can be valued as dynamic (absolute) or kinematic. AWG - American Wire Gauge Converting Chart American Wire Gauge (AWG) vs. cross sectional area converter. Density vs. Specific Weight and Specific Gravity An introduction to density, specific weight and specific gravity. Hot Water Heating Systems - Online Design Application Free online design tool for designing hot water heating systems - metric units. Water - Dynamic (Absolute) and Kinematic Viscosity vs. Temperature and Pressure Free online calculator - figures and tables with viscosity of water at temperatures ranging 0 to 360°C (32 to 675°F) - Imperial and SI Units. Flanges - ASME/ANSI B16.5 Flanges and Bolt Dimensions - Class 150 to 2500 Diameters and bolt circles for standard ASME B16.5 flanges - 1/4 to 24 inches - Class 150 to 2500. Inches vs. mm - Conversion Chart Convert fractional and/or decimal inches to metric mm - and vice versa. Wrench Spanners - Inches vs. mm Convert between US Inches and metric mm wrench and spanner sizes. Area Moment of Inertia - Typical Cross Sections I Typical cross sections and their Area Moment of Inertia. Dry Air - Thermodynamic and Physical Properties Thermodynamic properties of dry air - specific heat, ratio of specific heats, dynamic viscosity, thermal conductivity, Prandtl number, density and kinematic viscosity at temperatures ranging 175 - 1900 K . Cars - New vs. Old Car Cost Calculator Calculate and compare the costs between owning a new vs. an old car. • Acoustics Room acoustics and acoustic properties. decibel A, B and C calculations. Noise Rating (NR) curves. Sound transmission through walls. Calculate sound pressure, sound intensity and sound attenuation. • Air Psychrometrics Moist and humid air calculations. Psychrometric charts and Mollier diagrams. Air-condition systems temperatures, absolute and relative humidities and moisture content in air. • Basics Basic engineering data. SI-system, unit converters, physical constants, drawing scales and more. • Combustion Combustion processes and their efficiency. Boiler house and chimney topics. Properties of fuels like oil, gas, coal and wood and more. Safety valves and tanks. • Drawing Tools 2D and 3D engineering drawing tools. • Dynamics Motion of bodies and the action of forces in producing or changing their motion - velocity and acceleration, forces and torque. • Economics Engineering economics - cash flow diagrams, present value, discount rates, internal rates of return - IRR, income taxes, inflation. • Electrical Electrical engineering with units, amps and electrical wiring. Wire gauges, electrical formulas, motors and more. • Environment Climate, meteorology, solar, wind, emissions and environmental related engineering resources. • Fluid Mechanics The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time. • Gases and Compressed Air Properties of air, LNG, LPG and other common gases. Pipeline capacities and sizing of relief valves. • HVAC Systems Design and sizing of Heating, Ventilation and Air Conditioning systems. • Hydraulics and Pneumatics Hydraulic and pneumatic systems - fluids, forces, pumps and pistons. • Insulation Calculate heat transfer and heat loss from buildings and technical applications. Heat transfer coefficients and insulation methods available for reduction of energy consumption. • Material Properties Properties of gases, fluids and solids. Densities, specific heats, viscosities and more. • Mathematics Mathematical rules and laws - numbers, areas, volumes, exponents, trigonometric functions and more. • Mechanics The relationships between forces, acceleration, displacement, vectors, motion, momentum, energy of objects and more. • Miscellaneous Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more. • Physiology Human physiology vs. air quality, comfort temperatures, activity and metabolic rates. Health effects of gases adn polutions like carbon monoxide and more. • Piping Systems Calculate dimensions of pipes and tubes. Pressure drop calculations and head loss charts. Use of different piping materials. Insulation of pipes and tubes and heat loss diagrams. • Process Control Systems Instrumentation, design and documentation of process control systems. • Pumps Design of pumping systems and pipelines. With centrifugal pumps, displacement pumps, cavitation, fluid viscosity, head and pressure, power consumption and more. • Sanitary Drainage Systems The purpose of the sanitary drainage system is to remove effluent discharged from plumbing fixtures and other equipment. • Standard Organizations National and International organizations producing codes and standards - ANSI, ISO, DIN, BSi and more. • Statics Forces acting on bodies at rest under equilibrium conditions - loads, forces and torque, beams and columns. • Steam and Condensate Design of steam & condensate systems with properties, capacities, sizing of pipe lines, system configuration and more. • Thermodynamics Work, heat and energy systems. • Water Systems Design of hot and cold water service and...