AJ Design Software provides programs, freeware applications, tools, solutions and online calculators for engineering, design, science and education problems.
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| Miscellaneous |
| Ohm's Law Calculator |
Solves for any variable in the Ohm's Law equation. Includes computations for electrical resistance (ohms), power (watts), current (amps) and voltage (volt). |
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Oil Recovery Factor Calculator |
Solves related to oil recovery factor,
recoverable oil estimate, in place oil estimate, gasoline,
petrol and petroleum. |
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Operating Expense Ratio Calculator |
Solves financial problems related to operating
expense ratio, operating expense and gross operating
income. |
| Orifice Flow Design Calculator |
Solves problems related to orifices, flow rate, discharge coefficient, orifice area, gravitational constant and center line head. |
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Overtime Pay Rate Calculator |
Calculate overtime hourly pay rates given
normal or standard pay rate. Calculates time and a half,
double, triple and quadruple overtime pay rates. Page
is related to work and career. |
| Parshall Flume Design Calculator |
Solves problems related to Parshall flumes, flow rate, upstream depth and throat section width. |
| Peclet Number Calculator |
Solves problems related to Peclet dimensionless value, velocity, density, heat capacity, heat transfer conduction and convection, characteristic length and thermal
conductivity. |
| Pendulum Formulas Calculator |
Solves problems related to simple and physical pendulums, period, time, center of mass, moment of inertia, distance, pivot, acceleration of gravity and length. |
| Permeameter Calculator |
Solve problems related to permeameters, permeability coefficient, porous material flow rate, cross sectional area, pressure head change and length change. |
| Pipe Hydrostatic Pressure Load Calculator |
Solves problems related to hydrostatic pressure loads, external hydrostatic pressure, water unit weight and height of water above pipe top. |
| Pipe Soil Pressure Load Calculator |
Solves problems related to soil pressure loads, soil weight pressure, soil unit weight, height of water above pipe top, water buoyancy factor, soil load per linear
length of pipe, soil prism load theory, groundwater, outside pipe diameter and height from pipe top to ground surface. |
| Pipe Vacuum Pressure Load Calculator |
Solves problems related to vacuum pressure loads, load per linear length of pipe, internal vacuum pressure, valve closures, shutoff pump, siphon and inside pipe diameter. |
| Pipe Wheel Loading Calculator |
Solves problems related to wheel or track load per linear length of pipe, underground pipes, vehicular loads, surface wheel load, impact factor, ground surface height
above pipe top, outside diameter, pressure distribution, metal pipe, pipe wall thickness, pressure on pipe and fill depth. |
| Plastic Pipe Design Calculator |
Solves problems related to plastic pipes, AWWA C900 pipe, surge pressure, instantaneous velocity change, pressure rating and class, hydrostatic design stress, outside
and inside diameter dimension ratio, short term pressure rating and strength, hoop strength, quick burst pressure and safety factor. |
| Potential Energy Calculator |
Solves problems related to potential energy, mass, acceleration of gravity and height. |
| Prandtl Design Calculator |
Solves problems related to Prandtl dimensionless value, heat transfer, fluid mechanics, diffusion of heat and momentum, kinematic viscosity and thermal diffusivity. |
| Present Worth Analysis Calculator |
Solves problems related to present worth or value, future worth or value, interest rate, number of years and annual payment or cost. |
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Profitability Index Calculator |
Solves financial problems related to profitability
index, present value of future cash flows, initial cash
investment, profit investment ratio and value investment
ratio, land, building and residential, industrial and
commercial investment property. |
| Relative Humidity Calculator |
Solves problems related to relative humidity, actual vapor pressure, dew point temperature and saturated vapor pressure. |
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Return on Equity Calculator |
Solves problems related to return on equity,
cash flow after taxes, initial cash investment, resale
value and mortgage balance. |
| Reynolds Number Calculator |
Solves problems related to Reynolds Number, turbulent, laminar and transitional flow, density, pipe diameter, characteristic length, absolute dynamic viscosity and
flow velocity. |
| Risk Equations Calculator |
Solves problems related to relative risk, standard mortality ratio, carcinogen exposure, cancer probability, individuals, carcinogenic risk, chronic daily intake, carcinogen
slope factor, hazard index, reference dose, contact rate, duration, averaging time, retention rate, bloodstream absorption, administered, intake dose, fugitive dust and population. |
| Rule Of 72 Calculator |
Solves problems related to the Rule of 72, annual interest rate, years to double money and investments. |
| Schmidt Number Calculator |
Solve problems related to Schmidt number dimensionless values, fluid mechanics, mass transfer, kinematic viscosity and mass diffusivity. |
| Seismic Geophone Calculator |
Solve problems related to upper or overburden layer depth, lower or bedrock velocity and intersection point distance. |
| Sherwood Number Calculator |
Solve problems related to Sherwood number, mass transfer coefficient, characteristic length and diffusion coefficient. |
| Snow Calculator |
Solves problems related to melt depth, melt density, snowpack density, heat capacity and content, latent heat of fusion, liquid water density, cold snowpack water
depth equivalent, specific heat, temperature, heat storage change, short wave solar radiation, long wage radiation exchange, air convection, condensation or sublimation, ground
conduction, precipitation advection and snow pack depth. |
| Smooth Wall Steel Pipe Calculator |
Solve problems related to smooth wall steel pipes, pressure rating, allowable stress, yield strength, wall thickness and outside pipe diameter. |
| Solid Waste Calculator |
Solve problems related to solid waste moisture content, dry sample weight, landfill top soil layer percolation, precipitation, runoff coefficient, storage, evapotranspiration
and wet weight. |
| Soil Resistivity Calculator |
Solve problems involving soil resistivity, electrode spacing, voltage at inner electrodes and applied current at the outer electrodes. |
| Specific Gas Constant Calculator |
Solve problems involving specific gas constant, universal gas constant and molecular weight. |
| Specific Volume Calculator |
Solve problems involving specific volume and density. |
| Square Calculator |
Geometry calculator solving for square properties and characteristics. Properties include side and diagonal length, area and perimeter. |
| Statistics Calculator |
Solves problems related to standard deviation, variance, mean, binomial coefficient, median, samples, standard error parameter, sample size, mean value sample estimate,
probability theory, data analysis, variability coefficient and populations. |
| Suspension Coil Spring Rate Calculator |
Solves problems related to coil springs, spring rate constant, torsional or rigidity modulus, wire diameter, number of active coils and mean coil diameter. |
| Swimming Pool Water Maintenance Calculator |
Solves problems related to swimming and wading pool water balance, hot tubs, saturation index, temperature, calcium hardness, alkalinity, corrosive, turnover rate,
pump flow rate, pool volume and scale forming conditions. It determines if the water is balanced, over saturated or under saturated. |
| Temperature Conversion Calculator |
Solves problems related to thermometers , Fahrenheit, Celsius and Kelvin. |
| Thermal Conductivity Calculator |
Solves problems related to heat transfer rate, heat transport, flux, thermal conductivity constant, temperature differential, distance and length. |
| Thermal Diffusivity Calculator |
Solves problems related to thermal diffusivity, thermal conductivity, volumetric and specific heat capacity and density. |
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| Note: |
This online software site provides a resource for
solving math, algebra, chemistry, geometry, trigonometry,
physics and science problems. Covers problems and solutions
at the grade school, middle school, high school, university
and college course levels. Students, teachers, instructors,
professors, educators, and tutors feel free to use charts,
images, diagrams, formulas, answers, pictures, graphs,
plots, code, figures and equations in your school lesson
plans, assignments, tutorials, help or review sessions,
examples, class room presentations, lectures, research
trials, lab experiments, instruction manuals, jobs,
careers, work, papers, helper worksheets, tests, exams,
quizzes, projects, essays, how to guides and homework. |
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