Achieve optimal HVAC performance with specialized duct pressure drop calculator software
Fans consume a great deal of energy and their efficiency is crucial to preventing waste. Pressure drop calculation through a ducted network is important to maintain the efficiency of a duct network. Current building designs focus on energy efficiency and cost-effective installation of an air conditioning system which can be achieved with the help of software that provide realistic simulations to engineers, technicians, contractors, builders, and other vendors..
For an HVAC system to operate normally, equipment
capabilities must match the needs of the air duct system. Its air handling
system must be capable of overcoming any duct pressure drops and loss in static
pressure. HVAC professionals need building services software to allow them to
simulate a duct network for efficient working and cost-effective installation.
Here, we will discuss some popular building services software that makes their
work a lot easier by eliminating tedious manual work.
DOLPHIN
DOLPHIN is a specialized duct pressure drop calculation
software that calculates the pressure loss of a series of ducts and fittings.
It can be used to determine the required fan pressure for a duct network.
Fittings are selected for each duct entered in the network and DOLPHIN then
calculates the pressure loss in each length of the duct and fitting. Supply
ducts and fittings can be entered on one screen while return ducts can be
entered on the second screen.
Technical
details of Dolphin
Ø The
duct pressure drop calculator software can perform an hourly cooling load
analysis, taking into account thermal storage on a design day.
Ø Specific
monthly 3 pm design dry and wet bulb temperatures are available for over 600
locations in Australia and many other locations all over the world.
Ø A
psychometric analysis for each AHU with the coil performance expressed as a
bypass factor is done by the program.
Ø Fresh
air quantities can be entered at room or zone level as i/s/person.
Ø Additional
data for lightweight roofs is provided in the program to analyse buildings with
lightweight metal deck or similar kinds of roofing.
Ø Pre-calculated
U values and surface densities for a wide range of wall and roof constructions
are available in the Dolphin DOLPHIN computer program.
Summary results provided by DOLPHIN duct pressure drop
calculation software include the total pressure loss of the supply and return
ducts and fittings. AHU pressure losses can be entered to obtain the total
system (fan) pressure loss. The maximum velocity of the supply and return ducts
is also displayed in the summary. The supply and return screens can be exported
to a Microsoft Excel spreadsheet that can be printed as well. The results
viewing and printing screen provides for the selection of various tables, load
charts and summaries in either viewing or printing mode.
DONKEY
DONKEY is an air conditioning ductwork design software
that determines the size of a duct network and carries out its complete
acoustical analysis. It can determine quantities for costing purposes and
operates via a set of add-on menus in AutoCAD. The duct layout can be entered
as a line diagram including all the fittings, fans, and terminals. All the
related parameters such as the duct insulation and sizing method can be entered
in the dialog boxes that are called up on the screen.
DONKEY air conditioning duct design software allows for
automatic insertion of fittings and connection of run out ducts to terminals.
This allows for the utilization of powerful and accurate calculations. Various
alternative designs can be quickly and thoroughly investigated to achieve a
cost-effective design. Ducts can be drawn while terminals, fans and fittings
can be inserted with the help of pull-down menus. The data for calculations is
extracted from the drawings which are performed via the items in the Utilities
Menu.
These are just two popular air conditioning software
solutions by ACADS-BSG, the leading provider of building services software for
use in Australia, New Zealand and other regions in the Northern and Southern
Hemispheres.
Some
of other building services software
KOALA:
This air conditioning load estimation computer program produces a load chart
for up to 10 zones in a building. It is based on the CARRIER air conditioning
load estimation design method. It produces a detailed load chart that sets out
the input data and design data used to produce each individual component of the
load. It performs an hourly load estimate. Windows can have shading from
overhangs and reveals. Internal loads incorporated in Koala include people,
lights and equipment loads, both sensible and latent.
WOMBAT:
This building services software performs a series of the octave and or 1/3rd
octave band acoustical calculations for sound transmission issues in and around
buildings. Interactive data input is available through dialogue boxes and
drop-down selection lists. User-entered typical sound pressure and sound power
levels and absorption coefficients can be stored in the program. Screen results
from different runs can be compared both numerically and graphically in WOMBAT.
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