RE: [EnergyPlus_Support] Schematics for Example Files

The .SVG file that is created as a part of E+ outputs gives the schematic of the HVAC system. Internet Explorer which is the default viewer is not good at showing the details as it does not allow zoom. I recommend that you try Inkscape (google and download) for viewing the files. I think you will be pleasantly surprised at the amount of information that you can get out these files.

Haider Khan.

ICF International.

On Jun 3, 2010, at 9:25 AM, Eddie Corwin <ecorwin@altanova-energy.com> wrote:

Great schematic! I always do the same when I am modeling with E+. Has anyone ever compiled schematics for all of the example files? It would be EXTREMELY helpful in understanding how the systems are set up if schematics were included with the example files. If there is no one on the E+ team that can do this, it could be crowed-sourced and done in a very short time. Does anyone else think that HVAC system schematics for the example files would save a lot of time?

-Eddie

From: "James V Dirkes II, PE" <jvd2pe@xxxxxxx>
To: EnergyPlus_Support@yahoogroups.com; "Morss, Greg" <gmorss@tjeg.com>
Sent: Wed, June 2, 2010 8:25:53 PM
Subject: [EnergyPlus_Support] Hospital with 100% OA and heat recovery

Dear Greg,

It?s very possible! I?m completing a model which uses the Heat Exchanger in the configuration shown on the schematic, and it is working well. My particular model does not use 100% OA, but I think all you?ll need to do is set up the Controller:OutdoorA ir object to have a minimum fraction which is always = 1 (something like what I?ve shown below).

p.s., The example files are helpful, but you have to wade through all of the node names to figure out what?s connected to what. I always make a schematic to help keep them straight.

<image003.png>

Controller:OutdoorA ir

Name

OAController_ Aquatics

Relief Air Outlet Node Name

NodeOut_EA_Aquatics

Return Air Node Name

NodeIn_RA_Aquatics

Mixed Air Node Name

NodeOut_MA_Aquatics

Actuator Node Name

NodeIn_OA_Aquatics

Minimum Outdoor Air Flow Rate

2.50132

Maximum Outdoor Air Flow Rate

13.21452

Economizer Control Type

FixedDryBulb

Economizer Control Action Type

ModulateFlow

Economizer Maximum Limit Dry-Bulb Temp (C)

29.4

Economizer Maximum Limit Enthalpy (J/kg)

82939

Economizer Maximum Limit Dewpoint Temp (C)

MT

Electronic Enthalpy Limit Curve Name

MT

Economizer Minimum Limit Dry-Bulb Temp (C)

-40

Lockout Type

NoLockout

Minimum Limit Type

FixedMinimum

Minimum Outdoor Air Schedule Name

Minimum Fraction of Outdoor Air Schedule Name

SchCpct_AlwaysOn

Maximum Fraction of Outdoor Air Schedule Name

SchCpct_AlwaysOn

Mechanical Ventilation Controller Name

Time of Day Economizer Control Schedule Name

High Humidity Control

Humidistat Control Zone Name

High Humidity Outdoor Air Flow Ratio

Control High Indoor Humidity Based on Outdoor Humidity Ratio

Heat Recovery Bypass Control Type

<image002.jpg>

It is contradictory to insist that future generations respect the natural environment when our educational systems and laws do not help them to respect themselves. (Let's do both.)

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