docsnsa.blogg.se - Buy ashrae psychrometric

Enter data using buttons for small and large value increments Change other values using a slider.No need for a keyboard.

No need for a keyboard: move point over a diagram to change its air properties.

Select two air properties to define a point: dry bulb temperature, wet bulb temperature, humidity ratio, relative humidity, enthalpy, specific volume and moist air density.

Interestingly, the straight lines in the other two diagrams become curved lines in this one and vice versa. However, this diagram shows the same constant lines as for the other two. It is easy to read important weather data, such as temperature, dew point and relative humidity. This diagram is meant for meteorologists and pilots. The Mollier diagram is heavily used in Eastern Europe and Germany and shows the same lines as in the psychrometrics diagram.

To get a psychrometrics diagram from a Mollier diagram, swap it along the vertical axis and rotate it 90°. This is probably the oldest diagram to represent air properties and named after its inventor Richard Mollier (1863-1935). This diagram shows lines of constant temperature, humidity ratio, relative humidity, enthalpy and specific volume. You find detailed descriptions in standard books about air treatment, such as ASHRAE. This is the classic diagram representing different kinds of air properties into a single diagram. You can choose between three different diagrams: These four calculations show the results in a pane, but also graphically in a diagram. Graphically shows the danger zones on a diagram.

Given a temperature and a dew point temperature, calculates the probability of icing in an airplane carburetor.

When the ambient air would be too cold, this calculation dimensions an electric heater to prevent condensate. While heating up the ambient air, the heat exchanger cools down the room air, which may result in condensate. air in your room).Ĭalculates how warm room air heats up cool ambient air before supplying it as fresh air to the room. Depending on the given and required air conditions, some of these steps may not be needed.Ĭalculates the required capacity to cool down or heat up a given amount of air (e.g. The steps involved are cooling with a given sensible heat factor, dehumidifying, heating and humidifying (adiabatic or steam). This app offers four different calculations and shows the results both in a pane and on a psychrometric diagram:Ĭalculates how to convert a given ambient air to a required design air.