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SESSION IN HVAC LOAD ESTIMATION USING Elite Chvac Software. - Kindle edition by I.A HANI. Download it once and read it on your Kindle device, PC. After studying this Session you will be able to: Estimating HVAC Load using Elite Chvac. -Calculate Fresh Air and Calculate Required.
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Sworn Statements I have a good faith belief that use of the copyrighted materials described above as allegedly infringing is not authorized by the copyright owner, its agent, or the law. I wish to be contacted with the results of the investigation. Your notification has been sent Lulu Staff has been notified of a possible violation of the terms of our Membership Agreement. Chvac users are also interested in Overview Chvac quickly and accurately calculates the maximum heating and cooling loads for commercial buildings.
Advanced Features Chvac contains many, many advanced features. Program Input Chvac is very easy to use and includes a specific "dropdown" help window for virtually every input, including a list of choices where appropriate. Program Output Chvac provides several different types of reports which can be selectively previewed on screen or printed. Links to Other Programs Chvac not only calculates peak heating and cooling loads, it also aids in selecting HVAC equipment and analyzing building operating costs.
Update Information Chvac version 7 users can update to version 8 for a substantial discount off the full purchase price.
New Features in Version 8 Chvac version 8 can be installed on the same computer as version 7, and will not interfere with version 7 at all. The following new features were added to version 8 that were not in version 7. You can download a limited, functional demo of EnergyPro from here. Each applicable master data item now has an EnergyPro Code input, which you can use to map that master item to an EnergyPro material. Click the button beside any EnergyPro Code input and you'll see an EnergyPro Material dialog, which lets you select the mapped material from dropdown lists.
There is built-in mapping if you leave an EnergyPro Code input blank, but the user-defined mapping is easy to do, and is of course more precise. Multiple items of equipment cooling loads for each room. This dialog is filled with sensible and latent load information for various kinds of equipment listed in various tables in both the and ASHRAE Handbook of Fundamentals. Multiple items of lighting loads for each room.
Click the button beside the Lighting input on the Room Data window and a new Lighting Loads window opens. This window lets you create as many individual lighting load items as you need for each room, each with its own characteristics, such as Space Fraction, Usage Factor, etc.. Click the button beside the Description column and a new Typical Lighting Loads dialog opens, which lets you choose from several lists of lighting items that come from tables in the and ASHRAE Handbook of Fundamentals.
Click the menu "Project Load Preview" to open this new window.
It's similar to the window with the same name in Rhvac, but this one has over 90 columns of data available. You can choose which columns to make visible. There is a corresponding Print Preview report. The Load Preview Layout dialog lets you choose one set of visible columns for the Load Preview window itself, and another set of columns for the Print Preview version of it. Plenum-Room temperature difference automatic adjustment. When you enter a return air plenum you can now specify that you want the program to automatically adjust your entered temperature difference between the rooms and the plenum until it converges on a solution.
You can select the maximum number of iterations to perform for each plenum, as well as whether or not to round to the nearest whole number temperature. You can enter project defaults for these settings on the Design tab of the General Project Data window, and you can override them for each plenum on the Plenum Data window. In each room you can now calculate the latent load due to indoor swimming pools. All you have to do is enter square footage of the water surface, enter the water temperature, select an activity factor, and select an airflow velocity. The program will then calculate a latent load for the swimming pool.
Sloped Ceiling Area Calculator dialog. This dialog lets you enter dimensions for a room's sloped ceiling, and calculates the resulting area of the ceiling. The area is copied to the roof's Width input, and the number 1 is copied to the Length input. On the Air Handler Data window you can now enter miscellaneous supply and return latent equipment loads. Loads can be positive or negative, and can occur on either the supply or return side of the coil.
New Features in Version 7 The following new features were added to version 7 that were not in version 6.
The RTS method is found in the latest ASHRAE Handbook of Fundamentals and is very accurate because it calculates the delayed effect of radiant heat gains during each of the past 24 hours on the current cooling load. You can easily switch back and forth between the two methods simply by entering equivalent master roof, wall and glass data on the Master Data window for both methods.
Easier and Better Glass Definitions: Now you can enter the width and height dimensions for each window or skylight rather than having to enter them for the master glass and then figure out the correct quantity to enter on the Room Data window. The Room Construction value of Light, Medium or Heavy required for each glass in the CLTD method is now automatically assigned based on the selection you make for the entire room in the new Room Type input.
Individual Ground Reflectance Values: You can enter a different ground reflectance for each component rather than having only one value for the whole project, which makes the results more accurate because different exposures around a building are likely to have different ground reflectances. Because the RTS method requires this input for roofs and walls, each roof and wall now has a Ground Reflectance input, which makes it so each skylight and window is automatically assigned a ground reflectance value that is appropriate for its exposure.
Glass Number of Occurrences: You only have to enter data once for a window or skylight that occurs multiple times in the same wall or roof. Floor Slab Coefficient for Each Room: You can now enter the floor slab coefficient for each room rather than having to use the same value for the whole project.
The RTS method is found in the latest ASHRAE Handbook of Fundamentals and is very accurate because it calculates the delayed effect of radiant heat gains during each of the past 24 hours on the current cooling load. If someone believes in good faith that a Lulu Account Holder has infringed their copyright, they can request that we take down the infringing material by filing a DMCA Notice. You can select the maximum number of iterations to perform for each plenum, as well as whether or not to round to the nearest whole number temperature. We give you extensive control over the import process, including the ability to select which spaces, walls and windows to include in the import see screenshot below. The Chvac load calc program calculates a great deal of the data needed to define a system in the HVAC Solution schematic diagramming program. Address Address is required.
Easier to Use Room Data Window: The Room Data window formerly "Zone Data" has been redesigned to make it easier to enter all the data. You can change the number of visible roofs, walls and glass by clicking the plus and minus buttons next to each group's scrollbar. Pressing Enter when on the last visible row of a component now makes the components scroll down by one so you can enter another item of the same type.
If the Type input of a component is set to zero, pressing Enter moves the cursor to the next group of inputs. All the important data is now on two tabs instead of three. More Roofs, Walls and Glass per Room: We've more than doubled the allowed number of roofs, walls and glass you can enter for a room. Easier Weather Data Selection: Easier Weather Database Editing: It is now much easier to edit and add cities in the redesigned Weather Database window.