To delete a project, either click the "Edit" button located on the Project List form or swipe the project name, and the Delete button will appear next to the project name. The Project List form will disappear, and the newly added After you are done, click the "Add" button to add the new project. To do this, click the "Copy from existing" button to display a list of all existing projects, and select the project You can also copy an existing project to a new project. A new form will appear allowing you to type in the new project name. To select a project from the Project List, just select the project name using yor finger, and the project will appear on the iPad screen. This displays the entire list of projects.
To select, create, or delete a psychrometric project,Ĭlick the "Project List" button located in the lower left-hand portion of the screen. Another project may represent a complex HVAC cooling process, and all psychrometric chart lines are gray with red text. Psychrometric chart lines is black and the text as green. In addition, this project could display all the You can create one project that includes points and a line representing a simple sensible heat process. Each project has its own set of points, process lines, and chart characteristics. The HVAC Psych Chart app allows you to create psychrometric projects. Will display all screenshots in landscape: The graph fits best in landscape orientation, so this tutorial You can use the app in either the landscape or portrait orientation. When you first open the app, the main psychrometric chart appears. Then email the graph and results to yourself or clients. Using your finger, you can easily plot HVAC and other psychrometric processes on the iPad screen while you are out in the field, save the graphs, and It is the first truly interactive graphical psychrometric chart for the iPad, and it includes both IP and SI units.
You show a 'Virtual' Temperature under Thermodynamic properties.This online help applies to all versions of the HVAC Psychrometric Chart iPad app including the ASHRAE- and Carmel-branded versions. What is the difference between the six different humidity metrics shown? Why does this program show two different values of specific volume? There appears to be error in the calculations when converting from one unit system to User may override default input by selecting and entering new value. Site elevation for Dayton, OH - 997 ft amsl (306 m) based on the ASHRAE HOF. Sea Level Pressure - 14.7 psia / 101.3 kPa / 29.92 in Hg / 760 mm Hg (Default when 'ActualĪverage Barometric Pressure in Dayton, OH - 14.18 psia / 97.7 kPa / 28.86 in Hg / 733 mm Hg At the end of the calculation, the user has the option to convert from the English to the SI (or vice versa) unit system. The user then enters a desiredĭry Bulb temperature and one of three humiditymetrics:ĭew Point temperature. To calculate properties, the user must enter either a site elevation (from which an average barometric pressure is calculated) or an actual barometric pressure. It will also provide a number of other thermodynamic properties not found on a typical psychrometric chart. This on-line program calculates typical psychrometric state point properties. Instructions for the Psychrometric Calculator
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