For example, ΔS° refers to the change in entropy at STP. ![]() Standard state conditions, which include standard temperature and pressure, may be recognized in calculations by the superscript circle. STP commonly is used when standard state conditions are applied to calculations. Standard reference conditions are important for expressions of fluid flow rate and the volumes of liquids and gases, which are highly dependent on temperature and pressure. Because the standard varies by industry, it's good practice to state temperature and pressure conditions for measurements and not just say "STP.".Under these conditions, one mole of a gas occupies 22.4 L. One common definition of STP is a temperature of 273 K (0° Celsius or 32° Fahrenheit) and the standard pressure of 1 atm.STP values are most often cited for gases because their characteristics change dramatically with temperature and pressure.However, the "standard" is defined differently by various groups. STP is the abbreviation for Standard Temperature and Pressure.Selecting the Universal motor type will prompt a message taking you to the Universal product page. Note: Groschopp Universal motors are custom built to fit your application so no additional options are available to narrow the search. If you have any questions regarding your results or how to use the search tool, you can chat with us using the green tab on the left-hand side of your screen. Results will upload as your search criteria changes. The other sliders will automatically move to show available ranges based on the range of your selected variable. Use the slider corresponding to your dominant variable to further narrow your motor selection. The selected variable determines which slider bar you will be able to manually move. It uses molar volume of a gas at STP (standard temperature and pressure) This calculator finishes the topic started in Convert moles to liters and liters to moles calculator. Select a dominant variable: choose one of the three parameters to narrow your search. Study Chemistry Convert grams to liters and liters to grams This online calculator converts grams to liters and liters to grams given a gas formula. Light gray represents options not available with previously selected criteria.Dark gray represents available options.Narrow your search by selecting motor type, gearbox, voltage, and phase options for your desired motor. The selected kWh rate should be entered into the $/kWh data field for final calculation of annual operating cost.Ĭonversions used in the program are listed below (STP calculations are accurate to nine decimal places) Department of Energy website for electrical power rates by location. The button marked “Get KWh Rate” links to the U.S. STP uses this data to calculate total Hours/Year operation. ![]() To calculate the annual operating cost, it is first necessary to enter the following operational parameters: Based on the power requirements determined in the STP calculation, additional information can be entered in the Electrical Input and Loss calculator, to estimate electrical values based on the efficiency of the system. STP has an added feature to calculate estimated input power and losses. STPe can also be used simply as a tool to reliably and accurately convert units. There are a number of web sites that give additional information on the history of Horsepower and its calculation by searching the key word “horsepower”. The relationship between these variables follows the equation below. Rotational devices such as motors and gearmotors are given specifications in relationship to speed, torque and horsepower. STP reports are detailed and comprehensive, as well as customizable. Easily and Accurately Convert Units of Measurement.Calculate Estimated Electrical Current and Losses for Optimum Motor Selection. ![]() You can select conversions based on the most commonly used units and automatically generate results that can be printed out. The MOTORTEC™ STP conversion calculator provides a fast, easy way to calculate speed, torque, or power.
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