- Ashrae psychrometric chart with protractor pdf#
- Ashrae psychrometric chart with protractor install#
- Ashrae psychrometric chart with protractor series#
- Ashrae psychrometric chart with protractor windows#
Ashrae psychrometric chart with protractor series#
The DCAN (aka INPA DCAN, K+DCAN etc) cable is probably about $30, and an ENET cable would be $10 or so (it’s a very basic ethernet cable with a car plug on one end)ĮNET is for the F series cars, the DCAN will cover most BMWs from 1996 onwards to the last of the E series and sometimes beyond. What you’ll want is an DCAN cable and an ENET cable. Which tool is best for BMW coding/programming? With coding, this feature can be enabled.
Ashrae psychrometric chart with protractor windows#
It also allows you to inform your car that certain features have been added after you retrofitted new parts, which is normally required for your new retrofitted parts to work correctly.įor example, with the BMW 3 series coupe, one cannot roll up the windows with the keyfob remote from the factory. The dew point is given at 40 degrees Fahrenheit, unless otherwise stated by an official publication, e.g., ASHRAE Handbook series, so I always use 40 degrees Fahrenheit to measure dew point.BMW Coding NCS Expert Manual… here you go.Ĭoding a car means customizing hidden features that are otherwise not available/accessible to you via your car controls. Saturation is an arbitrary measurement because there is no such thing as a pure state of water vapor.ĭew point on the other hand is a more precise measurement of how much moisture there is in the air and it's based on the freezing-point depression or pressure depression between two points for which you want to know how much water there is in the air. A saturation of 100% means that all the water in the room is present as water vapor and can evaporate at room temperature. Saturation describes what percent of water vapor there is in the room, given that it's not cooled any more. The psychrometric chart gives us two different ways to measure how much water vapor is in the air: saturation and dew point. An example of that is when the outdoor air temperature in an area is between 40 and 50 degrees Fahrenheit, and the humidity indoors is at 70%, you will get condensation on the windows inside if there are no dehumidification systems installed in these buildings. The dry (salt) product can then be stored more easily than frozen produce.įor air conditioning, the chart is used to determine when a building may have a mold problem, a microbial problem or a health problem. For example, one process that uses this tool is called freeze drying where they freeze produce at very low temperatures, then remove all of the ice (water). The psychrometric chart is used in industrial processes for determining how much water is in an industrial process or system. The psychometric chart is also known as the saturation-humidity chart, the wet-bulb depression-dew point chart, and the Thompson chart. The tank was vented to the outdoors so the water could evaporate and mix with outside air. This water was collected in a tank for daily use and when it evaporated, it collected in the bottom of the tank.
This meant that most households had about 4,000 pounds of water every day. Most houses at that time had a fuel tank which held 4 to 6 thousand gallons of water with about 120 pounds of salt mixed in with the water to prevent corrosion. At that time, the only available technology was the hot-air furnace for heating which used about 600 gallons of fuel per day. The psychrometric chart was created by George Thompson in 1928.
Ashrae psychrometric chart with protractor install#
The psychrometric chart also gives you an idea about how much moisture there is in the air at different temperatures as that determines what type of dehumidification or humidification equipment you will need to install in your building. This chart can be found on the ASHRAE website and is one of the most widely accepted tools for designing and analyzing heating, ventilating and air conditioning (HVAC) systems.
Ashrae psychrometric chart with protractor pdf#
Ashrae Psychrometric Chart Si Units Pdf Downloadħ20c5d9bec 48 The psychrometric chart is a graphical representation of how the saturation, vapor pressure and temperature of moist air vary.
0 kommentar(er)
