Internal Surfaces appearing in PartL U-Value checks

Shane Regan — Mon, 24 Aug 2020 09:13:46 GMT

Current Revision posted to Hevacomp Wiki by Shane Regan on 8/24/2020 9:13:46 AM

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	V8i (N/A)
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A

Overview

The SBEM calculation engine performs a comprehensive check on U-Values for external and internal surfaces. Internal surfaces can and will appear on the Compliance Report.

Method

An internal surface can be flagged as "Maximum value" surface under the following conditions:

Temperature differential to the connected zone is considered too high. For e.g. Current zone is set at 21°C and temperature on other side set at 5°C

From CAD Input, examine the Room data and compare the zone to surrounding zones.

Partition surface is not connected to another zone

From CAD Input, examine the Surface data and check the partition connection.

Current zone is defined with HVAC and connected zone has no HVAC defined

From within PartL, check that your HVAC is specified correctly for each zone

U-value of surface fails the U-value check

The following figures are used for the reference building. You should ensure your fabric data is within these limits.

Note that the U-Value checks are area weighted.

The Data Reflection report is a useful debug tool for examining what data is passed into the SBEM calculation.

Tags: External, SBEM, Hevacomp Mechanical Designer, PartL, Internal

Internal Surfaces appearing in PartL U-Value checks

Duncan Brown — Fri, 25 May 2018 15:24:16 GMT

Revision 13 posted to Hevacomp Wiki by Duncan Brown on 5/25/2018 3:24:16 PM

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	V8i (N/A)
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A

Overview

The SBEM calculation engine performs a comprehensive check on U-Values for external and internal surfaces. Internal surfaces can and will appear on the Compliance Report.

Method

An internal surface can be flagged as "Maximum value" surface under the following conditions:

Temperature differential to the connected zone is considered too high. For e.g. Current zone is set at 21°C and temperature on other side set at 5°C

From CAD Input, examine the Room data and compare the zone to surrounding zones.

Partition surface is not connected to another zone

From CAD Input, examine the Surface data and check the partition connection.

Current zone is defined with HVAC and connected zone has no HVAC defined

From within PartL, check that your HVAC is specified correctly for each zone

U-value of surface fails the U-value check

The following figures are used for the reference building. You should ensure your fabric data is within these limits.

Note that the U-Value checks are area weighted.

The Data Reflection report is a useful debug tool for examining what data is passed into the SBEM calculation.

Tags: External, SBEM, Hevacomp Mechanical Designer, PartL, Internal

Internal Surfaces appearing in PartL U-Value checks

Duncan Brown — Thu, 19 Apr 2018 09:54:32 GMT

Revision 12 posted to Hevacomp Wiki by Duncan Brown on 4/19/2018 9:54:32 AM

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	V8i (N/A)
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A

Overview

The SBEM calculation engine performs a comprehensive check on U-Values for external and internal surfaces. Internal surfaces can and will appear on the Compliance Report.

Method

An internal surface can be flagged as "Maximum value" surface under the following conditions:

Temperature differential to the connected zone if considered too high. For e.g. Current zone is set at 21°C and temperature on other side set at 5°C

From CAD Input, examine the Room data and compare the zone to surrounding zones.

Partition surface is not connected to another zone

From CAD Input, examine the Surface data and check the partition connection.

Current zone is defined with HVAC and connected zone has no HVAC defined

From within PartL, check that your HVAC is specified correctly for each zone

U-value of surface fails the U-value check

The following figures are used for the reference building. You should ensure your fabric data is within these limits.

Note that the U-Value checks are area weighted.

The Data Reflection report is a useful debug tool for examining what data is passed into the SBEM calculation.

Tags: External, SBEM, Hevacomp Mechanical Designer, PartL, Internal

Internal Surfaces appearing in PartL U-Value checks

Duncan Brown — Thu, 19 Apr 2018 09:52:43 GMT

Revision 11 posted to Hevacomp Wiki by Duncan Brown on 4/19/2018 9:52:43 AM

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	V8i (N/A)
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A

Overview

The SBEM calculation engine performs a comprehensive check on U-Values for external and internal surfaces. Internal surfaces can and will appear on the Compliance Report.

Method

An internal surface can be flagged as "Maximum value" surface under the following conditions:

Temperature differential to the connected zone if considered too high. For e.g. Current zone is set at 21°C and temperature on other side set at 5°C

From CAD Input, examine the Room data and compare the zone to surrounding zones.

Partition surface is not connected to another zone

From CAD Input, examine the Surface data and check the partition connection.

Current zone is defined with HVAC and connected zone has no HVAC defined

From within PartL, check that your HVAC is specified correctly for each zone

U-value of surface fails the U-value check

The following figures are used for the reference building. You should ensure your fabric data is within these limits.

The Data Reflection report is a useful debug tool for examining what data is passed into the SBEM calculation.

Tags: External, SBEM, Hevacomp Mechanical Designer, PartL, Internal

Internal Partitions treated as external walls in Compliance Report

Shane Regan — Thu, 19 Apr 2018 09:25:10 GMT

Revision 10 posted to Hevacomp Wiki by Shane Regan on 4/19/2018 9:25:10 AM

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	V8i (N/A)
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation, and will be reported as such on the compliance report.

Method

Internal surfaces can be treated as external surfaces in the SBEM calculation engine when the difference between the temperature on one side of the internal surface is less than half of the temperature on the other side of the internal surface.

For e.g.: If on side of the internal surface is set to 21°C, and the other side of the surface is set to 10°C then this can be flagged as an exposed surface by the SBEM calculation engine.

If you are seeing this and consider it to be incorrect then you should check the design temperature settings (CAD Input>Rooms>Room data) in the affected rooms and compare them to surrounding rooms to see if your temperatures are set correctly.

Tags: External, SBEM, Hevacomp Mechanical Designer, PartL, Internal

Internal surfaces can be treated as external

Duncan Brown — Thu, 03 Nov 2016 14:45:41 GMT

Revision 9 posted to Hevacomp Wiki by Duncan Brown on 11/3/2016 2:45:41 PM

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	V8i (N/A)
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation, and will be reported as such on the compliance report.

Method

Tags: External, SBEM, Hevacomp Mechanical Designer, PartL, Internal

Internal surfaces can be treated as external

Duncan Brown — Fri, 27 Nov 2015 11:33:05 GMT

Revision 8 posted to Hevacomp Wiki by Duncan Brown on 11/27/2015 11:33:05 AM


	Applies To

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	V8i
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation, and will be reported as such on the compliance report.

Method

For an important note on the PartL calculation, please click here

External links

Bentley homepage

Bentley LEARN Server

Tags: SELECTservices, External, SBEM, Hevacomp Mechanical Designer, TechNote, surfaces, Internal

Internal surfaces can be treated as external

Stephen Brown — Tue, 17 Mar 2015 11:39:16 GMT

Revision 7 posted to Hevacomp Wiki by Stephen Brown on 3/17/2015 11:39:16 AM


	Applies To

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	All
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation, and will be reported as such on the compliance report.

Method

For an important note on the PartL calculation, please click here

External Links

Bentley homepage

HevacompMechanical Designer

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: SELECTservices, External, SBEM, Hevacomp Mechanical Designer, TechNote, surfaces, Internal

Internal surfaces can be treated as external

Duncan Brown — Fri, 05 Dec 2014 14:52:02 GMT

Revision 6 posted to Hevacomp Wiki by Duncan Brown on 12/5/2014 2:52:02 PM


	Applies To

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	All
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation, and will be reported as such on the compliance report.

Method

For an important note on the PartL calculation, please click here

External Links

Bentley homepage

HevacompMechanical Designer

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: SELECTservices, External, SBEM, Hevacomp Mechanical Designer, TechNote, surfaces, Internal

Internal surfaces can be treated as external

Duncan Brown — Tue, 28 Oct 2014 17:00:05 GMT

Revision 5 posted to Hevacomp Wiki by Duncan Brown on 10/28/2014 5:00:05 PM


	Applies To

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	All
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation, and will be reported as such on the compliance report.

Method

For an important note on the PartL calculation, please click here

External Links

Bentley homepage

HevacompMechanical Designer

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: SELECTservices, External, SBEM, Hevacomp Mechanical Designer, TechNote, surfaces, Internal

Internal surfaces can be treated as external

Duncan Brown — Tue, 28 Oct 2014 16:55:05 GMT

Revision 4 posted to Hevacomp Wiki by Duncan Brown on 10/28/2014 4:55:05 PM


	Applies To

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	All
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation.

Method

To view the methodology behind this, click here

External Links

Bentley homepage

HevacompMechanical Designer

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: SELECTservices, External, SBEM, Hevacomp Mechanical Designer, TechNote, surfaces, Internal

Internal surfaces can be treated as external

Elisabeth Pry — Wed, 26 Jun 2013 20:00:47 GMT

Revision 3 posted to Hevacomp Wiki by Elisabeth Pry on 6/26/2013 8:00:47 PM


	Applies To

	Product(s):	Hevacomp Mechanical Designer
	Version(s):	All
	Environment:	N/A
	Area:	N/A
	Subarea:	N/A
	Original Author:	Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation.

Method

To view the methodology behind this, click here

External Links

Bentley homepage

HevacompMechanical Designer

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: SELECTservices, External, SBEM, Hevacomp Mechanical Designer, TechNote, surfaces, Internal

Internal surfaces can be treated as external

Duncan Brown — Tue, 17 Jul 2012 09:18:27 GMT

Revision 2 posted to Hevacomp Wiki by Duncan Brown on 7/17/2012 9:18:27 AM

Document Information

Document Type: TechNote

Product(s): Hevacomp Mechanical Designer

Version(s): All

Original Author: Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation.

Method

To view the methodology behind this, click here

External Links

Bentley homepage

HevacompMechanical Designer

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: SBEM Internal External Surfaces

Part L - Internal surfaces can be treated as external

Duncan Brown — Mon, 16 Jul 2012 13:32:44 GMT

Revision 1 posted to Hevacomp Wiki by Duncan Brown on 7/16/2012 1:32:44 PM

Document Information

Document Type: TechNote

Product(s): Hevacomp Mechanical Designer

Version(s): All

Original Author: Bentley Technical Support Group

Overview

In certain circumstances, Internal surfaces can be treated as external surfaces by the SBEM calculation.

Method

To view the methodology behind this, click here

External Links

Bentley homepage

HevacompMechanical Designer

Bentley Technical Support KnowledgeBase

Bentley LEARN Server

Comments or Corrections?

Bentley's Technical Support Group requests that you please confine any comments you have on this Wiki entry to this "Comments or Corrections?" section. THANK YOU!

Tags: SBEM Internal External Surfaces

Internal Surfaces appearing in PartL U-Value checks

Internal Surfaces appearing in PartL U-Value checks

Overview

Method

Internal Surfaces appearing in PartL U-Value checks

Overview

Method

Internal Surfaces appearing in PartL U-Value checks

Overview

Method

Internal Surfaces appearing in PartL U-Value checks

Overview

Method

Internal Partitions treated as external walls in Compliance Report

Overview

Method

Internal surfaces can be treated as external

Overview

Method

Internal surfaces can be treated as external

Overview

Method

External links

Internal surfaces can be treated as external

Overview

Method

See Also

External Links

Comments or Corrections?

Internal surfaces can be treated as external

Overview

Method

See Also

External Links

Comments or Corrections?

Internal surfaces can be treated as external

Overview

Method

See Also

External Links

Comments or Corrections?

Internal surfaces can be treated as external

Overview

Method

See Also

External Links

Comments or Corrections?

Internal surfaces can be treated as external

Overview

Method

See Also

External Links

Comments or Corrections?

Internal surfaces can be treated as external

Document Information

Overview

Method

See Also

External Links

Comments or Corrections?

Part L - Internal surfaces can be treated as external

Document Information

Overview

Method

See Also

External Links

Comments or Corrections?