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CAD Simulation Tool for Direct Expansion Systems
With its ability to simulate real-time conditions for HVAC design variables, LG’s new CAD simulation tool can reduce design times for direct expansion systems by up to 60%
Where is LATSCAD best suited for you?
LG Electronics Air Conditioning and Energy Solutions Division has introduced its fi rst CAD simulation tool for
direct expansion
systems. The application, called LatsCAD is integrated into AutoCAD Professional and acts as an ‘add on’ tool for 2D design of Direct Expansion Systems. This application has been specifi cally
developed to cater
for consulting engineering companies in the fi eld of HVAC that want to increase the effectiveness and accuracy of direct expansion systems in their projects. When design engineers conceive an air conditioning system for a building, they must consider numerous factors – LatsCAD can help reduce design time, by accounting for these constraints. Although, it is not a 3D
application it can produce load calculation by using unitary load per surface. This tool is able to: • Calculate surface areas and automatically multiplies the rendering for the necessary load of the room.
• Perform simulations in real time conditions for
variable refrigerant fl ow systems
that use both air and water sink exchange environments, multisplit systems for various residential applications and monosplit systems for commercial applications.
All system simulations are realised considering many of the direct expansion systems constraints such as: temperature, necessary loads, piping lengths, combination ratios, effi ciency, defrosting, recovery conditions etc.
When deadlines have to be met, LatsCAD is a must!
LatsCAD is a time saving tool for engineering companies that design HVAC building systems. The application can reduce design time by up to 60% and can be used both at every stage of the design process. Checking and changing systems is now faster and
more accurate than it has ever been before. One command (Manual Registration of Room) allows you to defi ne a room, calculate the area of the room, calculate the necessary load (cooling and heating) and suggest the number of indoor units required in under 20 seconds.
This application offers the possibility to indicate the main artery of piping and through smart connection all of the indoors will be connected to it. From here it is only one step away from verifying, providing the system meets all the conditions of a DX application. At one click, system simulation will start checking the confi guration for load ratios, temperature conditions, combination ratios, and piping lengths. Upon completion of the simulation each piece of equipment will be named and each pipe diameter will appear automatically. Once the simulation is complete, you can be assured the correct equipment has been selected for the job. The reduced a mount of time needed in design means several
variations can be
sent to the customer. LatsCAD can save the previous version of the project and can replace the indoor units with a click of the mouse. This means several options can be considered in a short time frame. The versatility of this tool ensures a clear view of projects to consultant (by .dwg) as well as for installers (by isometrics).
Once the design is complete the end customer can be provided with: detailed AutoCAD drawings with legends; a general overview of the system’s confi guration; a detailed report with information about the building and, most importantly, comprehensive
details about system in real life conditions.
For further information please visit our website at
www.lgeaircon.com
www.cibsejournal.com June 2013 CIBSE Journal 49 proposed
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