3-D Air Conditioning Load Estimation Software for Positive Experiences and Lifecycle Cost Analysis in Small Buildings

 Traditionally, estimating air conditioning loads in small buildings has been done either manually or on estimation based on the experience of air conditioning practitioners. While manual calculations are tedious and time-consuming, judgemental estimation is prone to errors due to the complex and dynamic nature of present-day architectural buildings. Estimating air conditioning load software helps in making a positive impact in the dynamic nature of the air conditioning applications in modern buildings. 

 

Estimatingair conditioning load software helps building services professionals to increase productivity, accuracy, and lifecycle cost analysis, and assist in peak load calculation.

Here, we will discuss some of the commonly used software for estimating air conditioning loads in small buildings that have been specifically designed by HVAC system designers.

KOALA

One of the best among the estimating air conditioning load software used by professionals. The KOALA computer program for estimating air conditioning load in small buildings produces a load chart for up to 10 zones in a building. The program uses CARRIER load estimation design methods and data described in the AIRAH/IHRACE Application Manual DA9 – air conditioning load estimation and psychometrics.

Other salient features of KOALA software for estimating air conditioning load in small buildings include the below ones:

•              Hourly load estimation can be done based on thermal storage on a design day in each month of the year.

•              Monthly critical or comfort summer and winter design conditions for over 600 locations in Australia, and other parts of New Zealand, Papua New Guinea and South East Asia are available in the program.

•              For estimating air conditioning load in Northern and Southern Hemispheres, the user can enter their own design conditions in the software. 

•              Graphics are provided on the windows, external walls, and roof screens of KOALA to assist the users with checking their input data.

•              Air quality for each zone is determined by KOALA based on the leaving coil temperature or by-pass factor entered by the user in estimating air conditioning load software.

The results of the KOALA computer program for estimating air conditioning load in small buildings include a cooling and heating load chart for each zone. Summary results and tables can be selected using checkboxes for taking customized printouts.

CAMEL

The software calculates the design heating and cooling loads and associated psychometrics for air conditioning plants in commercial and residential buildings. The program models a range of system types including constant volume heating and cooling, reverse cycle heat pumps, VAV with and without reheat, and evaporative coolers.

Other key features of CAMEL building air conditioning load analysis and psychometrics software include:

•           Each AHU can serve a number of zones with multiple rooms.

•           The program caters for overhangs complete with drop panels and reveals on both windows and walls.

•           Drop panels, light wells, balconies, and all manners of shading schemes can be modelled by the computer program.

•           One can view the shadow patterns as the shading devices traverse any selected wall or roof.

•           Specific monthly 3 pm design dry and wet bulb temperatures are available in CAMEL for over 600 locations and Australia and other offshore locations.

•           Fresh air quantities can be entered in the program at room or zone level as I/s/person with the plant fresh air quantity determined by Compartment Formula for multiple rooms and zones.

•           Graphical displays are provided for schedules, shading schemes and for each external wall or roof.

The summary screen of CAMEL air conditioning load estimation and psychometrics software enables reviewing the input, and copying, moving and deleting AHUs, zones and rooms.

These software for estimating air conditioning load in small buildings by ACADS-BSG allow HVAC personnel to better estimate air conditioning load and deliver projects on time and within budget. Other useful building services software that contractors and building designers may find useful include DONKEY which provides sizing, acoustical analysis and costing for ductwork systems, DOLPHIN for sizing and pressure drop calculations of duct runs, PYTHON for designing of water piping system for air conditioning, and many more.

 

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