Air-conditioning coil condensate calculation software
Qcondensate
calculate coil condensate flowrate, air mixing and state point pyschrometric air properties
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Qcondensate: made design easier for everyone
Qcondensate program, an HVAC mobile design tool, performs quick calculations for AHU coil condensate, air mixing and state point psychrometric air properties. It is specially designed by a professional engineer to replace the conventional psychrometric chart (restricted scale and barometric pressure).
Aim: creating a mobile design environment (ShowMe!) for the practising engineers & designers in today's mobile world.
Results: Instant solutions at your fingertips.
Highlights
:
- calculate AHU coil condensate flowrate
- calculate air mixing and state point psychrometric air properties
- accurate formulation based on ASHRAE Fundamentals 2009.
- save results to text file for printing
- fully mobile program without setup requirement
- in SI & IP units
AHU Coil Condensate Calculation . . .
Start collecting "green water" from AHU coil condensate today - save the water, save some money!. Performing condensate calculation is time consuming as it involves air mixing psychrometric air properties calculations. With Qcondensateprogram, it is easier than ever with solutions just a few clicks away.
Example 1: Coil Condensate + Air Mixing (in SI Units)
Find the AHU coil condensate flowrate as indicated in the schematic below:
Solutions:
Step 1: Find air mixing properties at Point 3 (on coil).
Step 2: Calculate condensate flowrate
Coil Condensate Water Calculation
---------------------------------------------------
altitude (m) = 0
Q (point 3) = 4,680.0
Tdb (point 3) = 24.2
Tdb (point 4) = 13
RH (point 3) = 50.2
RH (point 4) = 90
Twb (point 3) = 17.3
Twb (point 4) = 12.1
W (point 3) = 9.45073
W (point 4) = 8.38593
Mda (point 3/point 4) = 1.5202
Condensate Flowrate = 0.0016 kg/s
Condensate Flowrate = 5.83 l/hr
-------------------------------------------------------
Legend:
Q = Airflow rate [CMH]
Tdb = Dry bulb temperature [°C]
RH = Relative humidity [%]
Twb = Wet bulb temperature [°C]
W = Humidity ratio [g(w)/kg(da)]
Mda = Mass flow of dry air [kg(da)/s]
Point 3 = on coil (entering air) conditions
Point 4 = off coil (leaving air) conditions
Example 2: Coil Condensate (in IP Units)
100% outdoor air at 95 oF DB/40% RH enters the cooling coil. The air leaves the coil at 55 oF/85% RH. Assuming 1000 CFM of outdoor air is being conditioned, find the condensate water collected.
Solutions:
Coil Condensate Water Calculation
----------------------------------------------------
altitude (ft) = 0
Q (point 3) = 1000
Tdb (point 3) = 95
Tdb (point 4) = 55
RH (point 3) = 40
RH (point 4) = 85
Twb (point 3) = 75.1
Twb (point 4) = 52.5
W (point 3) = 0.01413
W (point 4) = 0.00780
Mda (point 3/point 4) = 69.9265
Condensate Flowrate = 0.0074 lb/s
Condensate Flowrate = 0.43 ft³/hr
-------------------------------------------------------
Legend:
Q = Airflow rate [CFM]
Tdb = Dry bulb temperature [°F]
RH = Relative humidity [%]
Twb = Wet bulb temperature [°F]
W = Humidity ratio [lb(w)/lb(da)]
Mda = Mass flow of dry air [lb(da)/min]
Point 3 = on coil (entering air) conditions
Point 4 = off coil (leaving air) conditions
Air Mixing / State Point Psychrometric Properties . . .
A handy psychrometric calculator - find or check air mixing and state point air properties quickly without reading a psychrometric chart.
With input Tdb + Twb or RH, Qcondensate program let you quickly find/check the the following air properties at anytime, anywhere:
Legend:
Tdb = Dry bulb temperature
RH = Relative humidity
Twb = Wet bulb temperature
Tdp = Dew point temperature
rho = Density
W = Humidity ratio
v = Specific volume
h = Enthalpy
P = Atmospheric pressure
Pws = Saturation vapour pressure
Pw = Partial water vapour pressure
Q = Airflow rate
Mda = Mass flow of dry air
Mw = Mass flow of water vapour
Example 3: Adiabatic Mixing of 2 Moist Airstreams (in SI Units)
A stream of 7200 CMH of outdoor air at 4 oC dry-bulb temperature and 2 oC wet-bulb temperature is adiabatically mixed with 22500 CMH of recirculated air at 25 oC dry-bulb temperature and 17.9 oC wet-bulb temperature. Find the thermodynamic properties of the resulting mixture.
Solutions:
The following results are performed with Qcondensate - Air Mixing module.
Need to understand more about Psychrometrics! Follow me to
Qcondensate main menu
Condensate module
Air Mixing module
Air Mixing Results
State Point module
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