This chart is the quick-and-easy answer: Humidity is actually a measure of how much water vapor is being “held” in the air. There are different ways to measure humidity, including “absolute,”“specific,” or “relative” humidity. Most growers are talking about Relative Humidity or RH ...
When cold humid outdoor air is supplied and heated in a building - the relative humidity of the air is decreased. This heating process can be visualized in a psychrometric chart or in a Mollier diagram - as below: . Example - Indoor Relative Humidity of Heated Outdoor Air Outdoor air ...
Diehlprovided this chartto demonstrate the effectiveness of filter grades at mitigating specific sizes of airborne particles. A key to mitigating airborne particles is to verify that enough dilutive air is being brought into the facility, which can be accomplished by having a reliable system to measu...
no wiring needed.Revision 1 of the project is here. It also adds a hPa plot, time and date and a chart button to display the last 36 hrs of temperature, RH and hPa. (Code is also included to update the previous BLE-WiFi hardware) This project usespfodAppto display the ...
thermal comfort chartThis paper proposed to discuss some issues about indoor microclimate parameters design in radiant cooled residential buildings. Based on the thermal comfort model, the relationships between low mean radiant temperature and other thermal microclimate parameters such as indoor air ...
Furthermore, acknowledging the particularly strong impact on energy use from HVAC, ventilation, indoor temperature (T), and relative humidity (RH) are also included, as they relate to both thermal comfort and the possibilities to avoid moisture related problems, such as mould growth and ...
Ø "CHART" with 2 Alarm indicate the status of CO2 records up to 24 hours.Ø The Large LCD clearly displays the CO2, temperature, relative humidity and real-time clockØ "ECO" saving power function darken the LCD backlight (22:00pm to 6:00...
Ø "CHART" with 2 Alarm indicate the status of CO2 records up to 24 hours.Ø The Large LCD clearly displays the CO2, temperature, relative humidity and real-time clockØ "ECO" saving power function darken the LCD backlight (22:00pm to 6:00am).Ø 3-col...
There are a variety of causes of poor indoor air quality. A NISOH study based on over five hundred complaints found that inadequate ventilation and the release of contaminants from indoor and outdoor sources are the primary reasons for indoor air quality problems (see pie chart). Inadequate vent...
Based on the operative temperature obtained with the IR array sensor and the relative humidity data obtained with the thermo-hygrometer sensor, the thermal comfort state at the moment the data were obtained could be determined by using a chart with the ASHRAE comfort zone. However, as the comfor...