• Assigning Windcatchers through Flowpath Data

    Product(s): Hevacomp Mechanical Designer Version(s): V8i (N/A) Environment: N/A Area: N/A Subarea: N/A Overview The article provides detailed guidance of how to model windcatchers and assign…

  • Could not open the default project. need help urgently

  • Does anyone have experience of modelling an air supported structure to ascertain the heat loss.

    We have a project where our client is looking to provide a new air supported structure/ dome over an existing training pitch, the structure is to be heated and cooled as required. Can this be modelled using Hevacomp.

  • Energy Calculation - HWS and occupancy

    Product(s): Hevacomp Version(s): V8i Environment: N/A Area: Mechanical Designer Subarea: Design Database Problem Hot Water Usage is reported as zero upon running the Design Database Energy…

  • RE: Modelling a zone (room) within a zone (room)

    Hi Stuart, Modelling of such spaces can only be directly achieved in Hevacomp Simulator by using Atrium key words. However if you wish to use Design Database for level 3/4 Part L calcs then there are three workaround options available - please see further…

  • RE: Plant Schedule

    Hello Matt, Can you clarify which software you wish to do this in? Are you talking about Design Database - PartL or Dynamic Simulation? Regards Steve

  • RE: Yearly Gas Useage

    While these results are not directly available in the software, the Energy calculation in Design Database may be helpful as it will provide the annual energy usage in GJ. You could then use these figures to work out your gas consumption.

  • Omitted Recommendations shown in Recommendations Report

    Product(s): Hevacomp Version(s): V26 Environment: N/A Area: Design Database Subarea: Part L Problem 'Omit Recommendation' selections are not reflected in the Recommendations Report. Solution…

  • CIBSE Gain calculation - Importance of accurate input data

    Product(s): Hevacomp Version(s): V8i Environment: N/A Area: Design Database Subarea: Results Overview Unusual results are likely to occur if Building model data is inadequate. Method Comprehensive…

  • RE: wall heights

    Hi, Please use the 'Setup intermediate floors/ceilings' function (located in CAD Input > Roof/floors ) to set up the adjacencies between these floors. This will remove all gaps between your floors.

  • RE: Glazing database - effect of adding blind on G value and Shading co-efficient - CIBSE Gain

    Hi Michael, It is my understanding that the Uvalue and light Transmittance figures will not be affected by the blind, while the Shading Coefficient and SHGC would definitely be impacted. However the glazing manufacturer will need to confirm this for…

  • CIBSE Gain Calculation - Load types

    Product(s): Hevacomp Design Database Version(s): V8i (N/A) Environment: N/A Area: N/A Subarea: N/A Overview The following is a breakdown of components that make up the gains in the CIBSE Heat…

  • RE: CIBSE Gain - Results Breakdown

    Matthew, you have probably turned on Temperature Rise in the Design Data tab. When you use Temperature Rise the individual loads are combined in the underlying equations and cannot be accurately split out afterwards.

  • CAD Model Design - Gap Between Roof And Walls

    Product(s): Hevacomp Mechanical Designer Version(s): V8i (N/A) Environment: N/A Area: N/A Subarea: N/A Overview When modelling a roof in Hevacomp a space can sometimes appear between the roof…

  • RE: Uncontrolled heat gains

    Hello, Please post your second question regarding CIBSE Heat Gain to a separate thread and I will try to answer it there. With regard your question on Summer - The Summer calc uses Operative Temp as defined in CIBSE Guide A5 Section 1.2.2. This equates…

  • Why is the Hevacomp BRUKL Document not showing Solar Thermal Systems?

    Hi, Please would someone be able to help me. I have been trying to complete an SBEM for a client and this one part of the BRUKL document won't show up when I run the compliance section of the Part L in Hevacomp. On the roof of the building in question…

  • RE: Hevacomp Zone definition

    Hi, The best way to zone your building largely depends on what results you require. The following excerpt from the manual may help to clarify: Rooms can be placed in particular zones and floors so that zone and floor sub-totals can be selected and…

  • RE: Level 5 DSM SBEM & EPC; .

    Hi Shaun, to simulate the atrium space you would need to draw the rooms as usual, but name them according to your Atrium Keyword (in Simulator > Design Data > Atrium Spaces). For Example if your keyword was ATRIUM, then the rooms should be named ATRIUM…

  • RE: Hevacomp - Design Database - Special Surface Types

    Hi Rob, By any chance is this a glazed door? Any door that is more than 50% glazed is considered a Window for PartL purposes. If you set a glazed area greater than 50% then we automatically treat this as a window when we pass it to SBEM. This is…

  • RE: Floor Level Correction -

    The workflow for correcting a finished floor level can be found in our Support Solutions here: http://communities.bentley.com/products/building/performance/w/building_performance__wiki/11959.changing-floor-heights

  • DXF Import Issues - Drawing is too large error

    Product(s): Hevacomp Mechanical Design Version(s): V8i (N/A) Environment: N/A Area: N/A Subarea: N/A Overview This document details what to do should you encounter the following "Drawing is…

  • Editing project data - Default Data vs Global Change

    Product(s): Hevacomp Mechanical Designer Version(s): V8i (N/A) Environment: N/A Area: N/A Subarea: N/A Overview This document provides guidance on the difference between CAD Input Default Data…

  • CIBSE Gain calculation - Solar gains at night

    Product(s): Hevacomp Mechanical Designer Version(s): V8i (N/A) Environment: N/A Area: N/A Subarea: N/A Overview CIBSE Gain results can often display Solar Gains at night, for example: Explanation…

  • Design Database hangs after opening project, or "Timeout accessing the database" error occurs

    Product(s): Hevacomp Mechanical Design Version(s): V8i (N/A) Environment: N/A Area: N/A Subarea: N/A Overview Design Database projects may stop functioning or generate a Timeout error on opening…

  • RE: Save custom fabric data for all projects?

    Hi, the following document from our Wiki page explains how to do this: communities.bentley.com/.../creating-a-template-project.aspx Please let us know if you have any further questions.
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