New program in L|plus| Release 5.40: preLCC

Press Release

14. April 2010 GEA at IFH/Intherm 2010, in Nuremberg, Germany - 14 to 17 April 2010: Trade Fair for Sanitation, Heating, Air Conditioning, and Renewable Energies, Hall 7, Stand 7335/7434

A preLCC screen in Lplus 5.40: the program guides the user by means of three screen forms for interactive data entry: general, entries, and preLCC results. The user obtains optimal heat-recovery performance as a result.
A preLCC screen in Lplus 5.40: the program guides the user by means of three screen forms for interactive data entry: general, entries, and preLCC results. The user obtains optimal heat-recovery performance as a result.

Calculation of operating costs before configuration

The planning and design software Lplus has been upgraded in its new Version 5.40 by addition of a new function. With the module preLCC, it is now possible to calculate operating costs and carbon-dioxide emissions for heat-recovery systems, before configuration of the system. The software shows annual operating costs as well as CO2 emissions in metric tons per year (t/a).

The module preLCC allows the user to select an optimized heat-recovery system as central equipment, under cost-effectiveness and ecological standpoints. Analogously to life-cycle calculations (LCC), the upgrade calculates and compares operating costs and CO2 emission for all available heat-recovery systems (ECOFLOW, ECOROT, ECOPLAT, etc.). For these functions, it is not necessary to have previously set up the CAIR®plus equipment itself. Calculation takes place analogously to techniques that satisfy the requirements of VDI 2067, as they are also programmed into the LCC module of Lplus.

In addition, the user can restrict the range of selections and can, for example, stipulate a heat-recovery efficiency percent or certain hygiene applications that must be considered. The new module calculates the data of heat-recovery systems in accordance with DIN EN 308. The module preLCC likewise takes into account partial-load behavior under conditions of reduced air volumes. This is essential, since new energy-saving legislation stipulates control of air-flow rates in accordance with the particular application in question. After preLCC has calculated the optimal heat recovery, the user can configure the central unit on the basis of these data. The exact life-cycle-cost data for the overall system are likewise determined by the software.

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Nicole Hückels
Nicole HückelsSenior Manager Press Relations and Trade FairsPhone: +49 234 980 2584Fax: +49 234 980 34 2584
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