Koala

Air Conditioning KOALA Load Estimation

KOALA is a program for estimating air conditioning loads in small buildings. It is a cut down version of the widely used and renowned program CAMEL. KOALA is designed for use by designers and contractors working on the installation of air conditioning units in small commercial and residential buildings. KOALA produces a load chart for up to 10 zones in a building.
Like CAMEL, the program is based on the CARRIER air conditioning load estimation design methods and data described in the AIRAH/IHRACE Application Manual DA9 – Air Conditioning Load Estimation and Psychrometrics. It does not have the extensive shading or psychrometric capabilities of CAMEL, but does produce a detailed load chart that sets out the input data and design data used to produce each individual component of the load. Data entry is made easy with drop down selection menus, mouse operation and other facilities provided under WINDOWS.

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Project Input Screen

Features:

  • The program performs an hourly load estimate, taking account of 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 for many locations in New Zealand, Papua New Guinea and S.E. Asia (as listed in DA9) are readily available through a drop down list.
  • The program can be used for analysing buildings in the Northern or Southern Hemisphere and users can enter their own design conditions for locations not provided in the program
  • Windows can have shading from overhangs and reveals.
  • Contact sensitive help is provided for all items of input.
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Typical Windows Input Screen

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Typical Zone Input Screen

  • Graphics are provided on the Windows and External Walls & Roofs Screens to assist users with checking their input data.
  • U values for a wide range of commonly encountered walls and roofs are stored in the program and these are accessed via a drop down list on the External Screen.
  • The air quantity for each zone is determined based on the leaving coil temperature or by-pass factor entered by the user.
  • Internal loads include people, lights and equipment loads both sensible and latent
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External Walls and Roofs Input Screen

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Standard Walls and Roofs Selection Form

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Internal Loads and Partitions Screen

Results:

The results include a cooling and heating load chart for each zone, summary results and tables and these can be individualy selected using check boxes to build up a print file. Templates are provided to allow a number of preset result selections. The results from two KOALA runs can also be compared on screen. The tables include the summary results for each zone and tables of cooling loads and air quantities for each zone and for the sum of all zones.

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Typical Summary Results with Comparison of Two Runs

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Typical Summary Results with Comparison of Two Runs

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It has always been a pleasure dealing with ACADS-BSG team due to their helpful nature and quick response time to any inquiries and technical issues. Camel\Hyena works out of the box and install time is in seconds, I cannot recommend any other company that provides better customer service other than Catherine and her team.

– Marvin D

Catherine and the team at ACADS provide customer service of the highest standards always offering the best solutions for our business with fast response times. I would highly recommend ACADS-BSG.

– Amy

The ACADS BSG suite of software has been used by VOS Group for 30 years. We as a company have grown as the software capabilities have changed with usability and technology. The support from head office has always been quick and accurate, with a resolve to overcome any obstacles. We have always found the outputs to be accurate and reliable and a good basis for good engineering design.

– Shayne C

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As the pioneer of the lean startup movement, APPLAUZ has dedicated it’s time to sharing effective business strategies that help new businesses and enterpreneurs put their money to work in the right way.