Camel

Air Conditioning CAMEL Load Estimation And Psychrometrics

The computer program CAMEL is one of the leading air conditioning load estimation programs available. It calculates the design heating and cooling loads and associated psychrometrics for air conditioning plant in buildings. The calculations are based on the AIRAH/IHRACE Application Manual DA9 “Air Conditioning Systems, Load Estimation & Psychrometrics” which incorporates the cooling load estimation techniques and data developed by the Carrier International Corporation with considerable extensions and refinements to these methods and data, developed by ACADS-BSG. It operates in the Southern and Northern Hemisphere. The program is an extremely comprehensive analysis program that has been licensed through ACADS-BSG by well over 250 organisations throughout Australia, New Zealand and South East Asia.

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Graphical displays are provided for schedules, shading schemes and for each external wall or roof as it is entered providing a convenient visual check for the user.

The program models a range of system types including:

  • Constant Volume Heating and Cooling
  • VAV with and without reheat
  • Reverse Cycle Heat Pumps
  • Evaporative Coolers

Each AHU can serve a number of zones which can in turn have a number of rooms.
A Summary Screen enables reviewing the input and copying moving and deleting AHU’s, zones and rooms.

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The External Surfaces Screen

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Overhangs, Reveals and Other Shading on Walls and Windows

The program caters for overhangs complete with drop panels and reveals on both windows and walls. Shading on roofs and from adjacent buildings can also be modelled.
Drop panels, balconies, light wells and all manner of shading schemes can be modelled by the program. Overhangs and drops can be opaque or partially or completely transparent

A feature of the program is the ability to view the shadow patterns of these shading devices as they traverse any selected wall or roof as the time and month varies.

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Shadows from an Overhang, Reveals and an Adjacent Building

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Typical Results Showing AHU Summary Cooling and the Templates Selection List

A very comprehensive set of results including summary tables of loads and air quantities, load charts, tables of check figures, etc., is provided and these can be selected using a series of check boxes, pull down lists and/or user defined Templates.

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Graphing the Results – GT Sensible heat in April

The results can also be displayed graphically and a Psychrometrics Chart is provided for each AHU.

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Psychrometric Chart for AHUG01

The program calculates chiller, AHU, zone and room loads and air quantities, boiler, zone and room heating loads, reheat quantities with and without coil reset and room temperatures.

Comprehensive help is available on every screen and for each item of input.

Buttons on the toolbars and special keys allow the user to copy individual values, columns of data or complete screens from zone to zone making data entry very easy and fast. Tere is a facility for making global changes for many items making re-runs quick and easy; e.g wall types, room conditions, absorption coefficients, etc., can be changed across all AHU’s

Technical Details

  • The program performs an hourly cooling load analysis taking account of thermal storage, on a design day in each month of the year. It also determines the heating load for each AHU.
  • >Specific monthly 3 pm design dry and wet bulb temperatures are available in the program for over 600 locations in Australia and for many offshore locations.
  • >The program carries out a psychrometric analysis for each AHU with the coil performance expressed as a by pass factor, leaving coil temperature or nominated air quantity including fixed by pass and dump back systems.
  • Fresh air quantities can be entered at room or zone level as l/s/person with the “plant” fresh air quantity then determined using the Compartment formula from AS1668-1991 for multiple rooms/zones.
  • Additional data for light weight roofs (down to 10 kg/m2) has been incorporated. This allows the program to analyse buildings with light weight metal deck or similar roofing.
  • Precalculated U values and surface densities for a wide range of “standard” wall and roof constructions are available in the program.
  • Walls orientations can be at any azimuth and the entire building can be readily rotated.
  • The results viewing and printing screen provides for selection of various tables, load charts, summaries, etc, in either viewing or printing mode. The selected output can then be passed to a print file for review before final printing. Different fonts for headings, sub headings, etc are provided for under the control of the user. Templates enable print selections to be retained between 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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Subscribe

If you wish to receive our latest news in your email box, just subscribe to our newsletter. We won’t spam you, we promise!

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Applauz

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.