Energy settings overview

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Analysis of mechanical system design can be performed in rev

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it without the need for physically modeling a system.

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The process begins with the creation of an energy model and the options

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found in the energy settings will determine how the energy model is created.

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Energy settings also allow the user to establish some base

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assumptions such as the building type and operating schedule.

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The choices made within the energy settings will have a bearing on the outcome

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of calculated values for heating and cooling loads and for H VAC system sizing

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in this project, we will review the options available in the energy settings.

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Dialog box,

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consider the appropriate settings for different circumstances,

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then make alterations to suit this particular project.

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Ensure the current view is HVAC 3D views 3d,

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locate the energy settings button on the analyze

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tab of the ribbon and the energy optimization panel

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select energy settings and review the initial energy analytical model settings.

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There are four modes that will determine how the

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energy model is created from the architectural model,

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use building elements. If the project is created from physical model elements

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use conceptual masses if the project has been created using mass modeling tools.

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The recommended option is to use conceptual masses and building

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elements which caters for both approaches for architectural model creation.

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Finally, the energy model can be created from RT

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rooms or spaces

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use the recommended option and select conceptual masses and building elements.

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Ground plane sets the level of the building assumed to be in contact with the ground.

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Analytical space resolution and analytical surface resolution

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dictate the accuracy of the energy model and increasing or decreasing.

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These values alters not only the accuracy but also the processing time required

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for a larger project.

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These values may be altered to reduce the

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accuracy but to also reduce the processing time.

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Perimeter zone, depth and perimeter zone division

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are used only with conceptual masses and where internal

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walls have not been modeled in the building.

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The threshold setting values control the application of thermal

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loads and properties to spaces within the building.

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By setting an appropriately low value,

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the user can prevent small spaces such as small

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storage areas and ceiling voids from being assigned.

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This information.

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A review of the advanced options allows the user to provide

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more detailed information about the building and the intended systems.

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The values found under the detailed model heading are for use

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with projects that contain conceptual masses and are grayed out otherwise

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under the advanced heading,

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change the building service to va V single duct

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to determine the heating and cooling system for the building

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and set the building infiltration class to medium to indicate

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the amount of air entering through leaks in the building envelope

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under the building data heading.

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Set the building type to the most appropriate description in this case,

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hospital or healthcare

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and set the building operating schedule to 24 7.

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Set the H VAC system to the arrangement

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that best describes the intended physical system.

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And a range of assumptions will be applied to the analytical system. Calculations

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set the outdoor air information based on the required

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values for the intended use of the building.

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From the options choose air changes per hour and set the value to eight.

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It's not necessary to add rooms or spaces to create an energy model.

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But if they have been created,

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the export category option determines whether it is the data

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from rooms or spaces that is used in the analysis.

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In this case, set the option to spaces.

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Finally,

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the material thermal properties area is used to determine

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which material data will be used during the analysis,

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conceptual types,

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which is used when the thermal properties have not otherwise been defined.

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Schematic types

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used to override thermal property values for specific building element types

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and detailed elements where the thermal properties

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from the architectural model will be used.

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Select detailed elements from the available options

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once reviewed and completed the energy settings. Dialog box can be closed.

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A complete review of the energy settings and all of the

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options within will ensure the mechanical systems analysis carried out.

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For any building will return calculated values

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that are aligned with the building type

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intended use and physical systems to be installed.