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.
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:
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.
The External Surfaces Screen
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.
Shadows from an Overhang, Reveals and an Adjacent Building
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.
Graphing the Results – GT Sensible heat in April
The results can also be displayed graphically and a Psychrometrics Chart is provided for each AHU.
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