"Snow Flake" is a simple cooling load estimation software developed in C# (C sharp) dot NET.
In this version,
configuration file input and output system is available (Only inputs will be equipments). As a result, there is no tedium
of numerous data input at every run. A sample project file is included
(project6.SF). Total 21 walls are available. It is compatible with windows 7 or 8 32 bit OS. In windows XP dot NET framework 3.5 should be installed
manually. P.S.- Report button activates after every successful run of the program.
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- Weather conditions are selected from a long-term statistical database. The conditions will not necessarily represent any actual year, but are representative of the location of the building. ASHRAE has tabulated such data.
- The solar loads on the building are assumed to be those that would occur on a clear day in the month chosen for the calculations.
- All building equipment and appliances are considered to be operating at a reasonably representative capacity.
- Latent as well as sensible loads are considered.
- The latent heat gain is assumed to become cooling load instantly, whereas the sensible heat gain is partially delayed depending on the characteristics of the conditioned space. According to the ASHRAE regulations, the sensible heat gain from people is assumed 30% convection (instant cooling load) and 70% radiative (delayed portion).
- The ventilation rates are either assumed on air changes or based on maximum occupancy expected.
- Design dry blub of 2.5% in summer and 97.5% in winter for Chittagong city is considered. 2.5% means that temperature exceeds the value (330C) only 2.5% of all the hours in summer months. Windows are externally shaded.
