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And as one other comment stated, I would expect a little more from ASHRAE.
#Ashrae psychrometric chart app software
In 2020 I expect software that is a bit more polished and more user friendly. The point properties form is not visible after zooming, appears to be off screen.Ĭreate state points based on process loads.īottom Line: The app feels like a beta version for a psychometric chart program that had a very limited budget. Occasionally, when pinching to zoom one of the state points will move even though my fingers were not near the point something similar to this happens a couple of times on the training video from Carmel. Mixed air points are static individual points that are not tied to the air streams that created the mixed air point, such that if the conditions change then the mixed air point must be recreated. Connecting points with a process line will not carry forward the airflow rate must be entered by hand for each point. Does not work well with Apple Pencil selecting a state point causes the point to move must use finger to select points. Display psych process line as curved along 100% RH line. Display sensible heat ratio (SHR) line 9.
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Zoom in or out of the chart by "pinching" the iPad screen so as to view items in more detail. Also, you can create templates that you can reuse over and over again. Create an unlimited number of psychrometric chart projects.
#Ashrae psychrometric chart app pdf
After you have completed creating the chart, you can email a list of all the points and their properties along with a PDF of the chart, itself. Also, create custom labels anywhere on the chart. Create psychrometric processes by plotting points then connecting them with process lines. In addition, you can double-tap a point to display the point properties and then edit them. As you move your finger around the graph, the psychrometric properties at the top of the screen dynamically update. Using your finger, you can plot as many points as you want on the screen. Allows you to customize the graph in many different ways including specifying the psychrometric chart line colors, chart background color, hide/display status of chart lines, point colors, process line colors, units of graph values, and the min/max limits of the chart. Displays a fully customizable psychrometric chart in both landscape and portrait modes.
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The HVAC Psych Chart app includes the following features and functionality: 1. 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 then email the graph and results to yourself or clients. You show a 'Virtual' Temperature under Thermodynamic properties.The HVAC Psychrometric Chart app is the first truly interactive graphical psychrometric chart for the iPad, and it includes both IP and SI units. 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