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2.
Hydronic Pipe Sizing (Optimum sizes)
This “Pipe Sizing
Calculator – Optimum Economical Sizes” program uses a combination of
velocity and pressure drop and includes recommended ranges of velocity and
pressure to avoid erosion and air trapping problems.
In addition, “Pipe Sizing Calculator –
Optimum Economical Sizes” includes pipe size selections that range from
“Lower First Cost” to “Lower Operating Cost”.
This allows alternate size selection with economic trade-offs. The
program also includes warning flags if the alternate size selection would
result in excessive velocity that could cause noise and erosion, would
result in too low velocity that could create air trapping, or would result
in excessive pressure drop which could increase pump horsepower.
“Pipe
Sizing Calculator – Optimum Economical Sizes” can be applied to Copper
Pipe(Type L) or Steel Pipe,
on hydronic heating or chilled water systems.
(Click image to enlarge)
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3.
"Preliminary" Fan Static Pressure Calculations
At
the early stages of a project, it is desirable to estimate the static
pressure requirements of the fans and air handling units, so preliminary
equipment selections and horsepower requirements can be determined.
The Preliminary Fan Static Pressure Calculations assume that ductwork will
be sized by “Equal Friction” or “Enhanced Equal Friction” methods.
Pressure drop allowances for fittings are based on “Equivalent Length”
of straight ductwork for the various types and sizes. Pressure drop
values for “Supply Diffuser”, “Return Register”, “Filter”, and
“Balancing” are also for generic equipment.
If manufacturer’s data is available for these components, the
actual values may be used in place of the generic values. Pressure
drop values for “VAV Box” and “Heating or Reheat Coil” can be
estimated or manufacturer’s data may be input if available.
(Click image to
enlarge)
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4.
VAV - Reheat Coil Load Calculations
Sizing
of the reheat coil, calculation of the reheat coil load, and calculation
of the reheat coil heating water flow rate are dependent on several
factors.
If a zone is satisfied for cooling temperature, it is possible that
the internal heat gain is not adequate to offset the room heat loss
(lights may be off, people may not be in the room, equipment may be off,
etc.).
To keep the room from sub-cooling, it might be necessary to
energize the reheat coil.
This will increase the supply air temperature from the normal
cooling supply air temperature (approximately 55 degrees F) to a
temperature that will offset the space heat loss (less an allowance for
any independent perimeter heating equipment capacity, if applicable).
This program calculates the reheat coil load, based
on the input for “Cooling Supply DB” temperature, the “Minimum VAV
Air Quantity” for the zone, and the “Calculated Zone Heating Load”
for the zone.
(Click image to enlarge)
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5.
AHU - Preliminary Cooling Coil Load Calculations
Preliminary
Cooling Coil Load Calculations can be used to estimate the required Air
Handling Unit Cooling Coil capacity. Preliminary
Chilled Water flow rates can also be used for preliminary Pump sizing,
preliminary Chiller sizing, preliminary Cooling Tower sizing, preliminary
Pipe sizing, etc. The
information from the Preliminary Calculations can also be sent to the
proposed Equipment Manufacturer of the Air Handling Units for finalized
equipment selection and for finalized Project Equipment Schedule capacity
data.
The calculations for this Preliminary Cooling Coil Load program
incorporate cooling coil psychrometrics, air density corrections, altitude
corrections, and indoor and outdoor design temperatures.
Different combinations of airflows and temperatures can be input
for each AHU to optimize the AHU and coil performance before issuing the
information to the Manufacturer for final equipment selection and for
final specifications.
(Click image to
enlarge) 
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6.
"Preliminary" Pump Head Calculations
At
the early stages of a project, it is desirable to estimate the pump head
requirements so preliminary pump selections and horsepower requirements
can be determined. The Preliminary Pump Head Calculations
assume that piping will be sized with conventional pressure drop per 100
ft. of approximately 4 ft./100 ft. up to 2” size, 3 ft./100 ft. for 2 ½”
to 4” sizes, and 2.5 ft./100 ft. for 5” and larger pipe.
Pressure drop allowances for fittings are based on “equivalent length”
of straight pipe for the various types and sizes.
Pressure drop for “Air Separator” is based on a generic air
separator, including strainer. Pressure
drop values for “Control Valve”, “Chiller”, “Boiler”,
“Cooling Tower”, “Heat Exchanger”, “Cooling Coil”, Heating
Coil”, and “Balancing Valve” are also for generic equipment.
(Click image to
enlarge) 
7.
Duct Sheet Metal Weight and Insulation Calculations
A
significant part of a project mechanical cost includes the ductwork
sheet metal and insulation costs.
When final cost estimates are being prepared, it is important
that an accurate accounting for the sheet metal and insulation
quantity is provided. The “Sheet Metal Weight and
Insulation Calculations” schedule includes recommended or code
required sheet metal gauges for each size duct.
A “Scrap Losses” multiplier is included, to account for
scrap lost during fitting construction. “Total Square
Footage” can be used to determine insulation square footage
required for the ductwork (either lined or wrapped).
Square Footage can also be used for painting estimates, where
the ductwork is painted. Weights in Pounds per Square Foot or
per Lineal Foot are based on Galvanized Sheet Metal, at the gauge
required by the associated duct size and configuration.
(Click image to
enlarge) 
8.
Expansion Tank Sizing - Heating Water
To accurately size the system expansion tank, it is necessary to
calculate the total water volume in the system.
This includes the water content of all pipes, heating
equipment (boilers, heat exchangers), heating coils, and any other
miscellaneous equipment in the “closed loop” system. Water
expansion due to temperature changes must be accommodated by
providing a place for the water to expand.
Proper sizing of the expansion tank is
critical, to avoid potentially dangerous pressure increases in the
system. The Heating Water Expansion Tank sizing
calculations are based on thermal expansion of the fluid in the
“closed loop” system as the fluid is heated or cooled.
(Click image to
enlarge) 
 9.
Expansion Tank Sizing - Chilled Water
To accurately size the system expansion tank, it is necessary to
calculate the total water volume in the system.
This includes the water content of all pipes, cooling
equipment (chillers), cooling coils, and any other miscellaneous
equipment in the “closed loop” system. Water expansion due
to temperature changes must be accommodated by providing a place for
the water to expand. Proper
sizing of the expansion tank is critical, to avoid potentially
dangerous pressure increases in the system. The Heating
Water Expansion Tank sizing calculations are based on thermal
expansion of the fluid in the “closed loop” system as the fluid
is heated or cooled.
(Click image to
enlarge) 
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System Requirements
For full functionality of the Software "Apps", it is recommended
that your system have at least the following configuration:
 | Operating System: Android or equivalent |
| Disk Space: 1.0 GB (recommended) for
installation of all
"Apps" |
| Software: Office Suite-Pro®, or MS Word®
& MS Excel®, or equivalent |
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Prices/Orders
ALL of the above "Apps" and Programs are available
individually or are included in combined packages. Order now to assure that you will receive
the low "Limited Time Special Prices". Go to the [Go
To Prices/Orders Page]
page for details.
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