Whilst obviously important in the design of air-conditioning systems, these concepts are also fundamental to the understanding of many aspects of thermal comfort in buildings and the principles of climate-responsive design. The terms psychrometry and psychrometrics refer to the study of moist air and its thermodynamic properties. You can add or remove lines for a range of different metrics or highlight them individually to assist with dynamic explanations or presentations. Display units in both English and Metricġ3.The aim of this web app is to create an interactive psychrometric chart on which you can project a range of comfort metrics as well as mapping weather data or room air conditions calculated using EnergyPlus. Email the full pressure/temperature list for the selected refrigerantġ2. Email project inputs and properties for the selected refrigerantġ1. Display common properties for the selected refrigerant (oil type, GWP, composition, critical temp, boiling temp, and more.)ġ0. Includes a database of 1000+ cities world-wide with elevation data that is used to derive atmospheric pressureĩ. Allows you to select the atmospheric pressure so as to show the true pressure-temperature relationship even for high elevationsĨ. Displays a list of pressure/temperature values in 1 degree incrementsħ. Allows you to also use a slider control to specify the exact pressure or temperature to see the corresponding temperature or pressureĦ. Allows you to input the temperature and then the corresponding pressure will display and vice versa.ĥ. Works on both the Apple iPhone and iPad (and adjusts its screen according to the mobile device screen size, whether you are running it on the iPhone 6 or the iPad)Ĥ. This is a unique PT Chart app for the following reasons:ġ.
This is the only PT Chart app that allows you to email complete PT chart lists, refrigerant properties, and your inputted values/results. THE MOST COMPREHENSIVE P/T CHART ON THE MARKET IS NOW A UNIVERSAL APP: IT WORKS ON BOTH THE iPAD and iPHONE.ĪSHRAE HVAC PT Chart is an electronic pressure temperature calculator that allows HVAC technicians and contractors to quickly look up the temperature and corresponding pressure for 100+ common HVAC refrigerants including both bubble and dew versions of azeotropic (mixture) refrigerants.
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