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Today's Topics:
1. Re: Type 907 zero output (David BRADLEY)
2. Re: TRNSYS-users Digest, Vol 157, Issue 26 (David BRADLEY)
3. TRNSYS Seminar in March - Last Call (hotline)
---------- Forwarded message ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org>
Cc: "Taherian, Hessam" <taherian@uab.edu>
Bcc:
Date: Mon, 29 Jan 2018 08:58:14 -0600
Subject: Re: [TRNSYS-users] Type 907 zero output
Mr Taherian,
There are a number of possibilities. The most likely is that the input for "Desired Output Power" is set to zero.
kind regards,
David
On 01/28/2018 16:42, Taherian, Hessam via TRNSYS-users wrote:
I have started modeling a cogeneration system based on Type 907 engine-generator. The output of the engine is zero (no error) when I run the simulation. I am using the default performance data that comes in TESS libraries. What could be the issue?
Thanks
H Taherian
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-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com
---------- Forwarded message ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org>
Cc: Amit Verma <amitverma758@gmail.com>
Bcc:
Date: Mon, 29 Jan 2018 09:08:33 -0600
Subject: Re: [TRNSYS-users] TRNSYS-users Digest, Vol 157, Issue 26
Amit,
There is a component in the TESS Utility library (Type572: equipment fouling) that was designed for this purposes. The disadvantage of it is that you have to define the reduction in production efficiency as a function of the dust. However, once you do the component will linearly degrade component performance and will then account for periodic cleanings.
If you do not have access to that component you are probably best multiplying the performance of the PV by a performance reduction factor using an equation.
kind regards,
David
On 01/29/2018 03:17, Amit Verma via TRNSYS-users wrote:
Hello Everyone,
I am doing a project on type 94 (PV Module) . I have to find dust effect on PV module's Efficiency. Please suggest me how to enroll it with PV module .
Kind RegardsAmit Verma
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On Thu, Jan 25, 2018 at 6:00 AM, <trnsys-users-request@lists.onebuilding.org > wrote:
Send TRNSYS-users mailing list submissions to
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of TRNSYS-users digest..."
Today's Topics:
1. airchange between zones (Alex moreno)
2. Re: airchange between zones (David BRADLEY)
---------- Forwarded message ----------
From: Alex moreno <alamoreno19@hotmail.com>
To: trnsys_users <trnsys-users@lists.onebuilding.org >
Cc:
Bcc:
Date: Wed, 24 Jan 2018 14:22:02 +0000
Subject: [TRNSYS-users] airchange between zones
Hi
I have a doubt when i modeling a single family building with two floors,
how i can connect the airchange between of two zones (first floor and
second floor)
another doubt is:
Firstly i simulated the two floors us one zones, but now i simulate the
buildign us two zones, the results of heating differ 2% respec of one
zone building and differ cooling 10%, it is normally?
regards
Alex
---------- Forwarded message ----------
From: David BRADLEY <d.bradley@tess-inc.com>
To: "TRNSYS users mailing list at OneBuilding.org" <trnsys-users@lists.onebuilding.org >
Cc: Alex moreno <alamoreno19@hotmail.com>
Bcc:
Date: Wed, 24 Jan 2018 16:49:40 -0600
Subject: Re: [TRNSYS-users] airchange between zones
Alex,
When you define an ADJACENT wall (or floor/ceiling) between two zones you have the ability to define a coupling air flow rate from each to the other. You can set the flow rate as a constant, as a scheduled value, or as an input. Type56 leaves it to you to determine how much air flows back and forth between the zones.
The most correct way of determining the quantity of airflow is to use an airflow modeling tool such as TRNFlow or Type97/CONTAM.
It is hard to answer your second question. The answer depends on what metrics you are looking at. For instance, I would be surprised to see the loads of the building change by 10% based on 1 zone or 2. However, if you are looking at consumption of energy by an HVAC system then it is possible, especially if you are using a single thermostat to control the system.
kind regards,
David
On 01/24/2018 08:22, Alex moreno via TRNSYS-users wrote:
Hi
I have a doubt when i modeling a single family building with two floors,
how i can connect the airchange between of two zones (first floor and
second floor)
another doubt is:
Firstly i simulated the two floors us one zones, but now i simulate the
buildign us two zones, the results of heating differ 2% respec of one
zone building and differ cooling 10%, it is normally?
regards
Alex
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--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
d.bradley@tess-inc.com
http://www.tess-inc.com
http://www.trnsys.com
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-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com
---------- Forwarded message ----------
From: hotline <hotline@transsolar.com>
To: "trnsys-users@lists.onebuilding.org" <trnsys-users@lists.onebuilding.org>
Cc:
Bcc:
Date: Mon, 29 Jan 2018 16:30:45 +0000
Subject: [TRNSYS-users] TRNSYS Seminar in March - Last Call
Dear TRNSYS Users,
from March 05th to 09th 2018 we are offering TRNSYS courses, again. We have extended our courses to include special courses on TRNSYS 18. The courses will take place in Stuttgart from 9am to 5pm daily. The courses will be held in English.
Details about the course program and the new features can be found below. Each participant works on its own PC and is looked after by our specialists.
The minimum number of participants for each course is six people. If this number is not reached, we will cancel this course until February 19th 2018.
To register, just reply to this e-mail stating name, TRNSYS User-ID, company and course number(s). We will then send you further documents.
If you have any further inquiries, we will be happy to address them.
Best regards
Your TRNSYS Software Team
________________ General Seminars _______________________
Seminar 1
Introduction to working with TRNSYS
- System-Generation with TRNSYS Studio
- Modeling of a solar water heating system
- Running a system simulation
- Discussion of simulation results
Price per person: 495,00 Euro plus VAT
Seminar 2 (2-day)
Building simulation with TRNSYS
- Theory and basic of the multizone building model
- Modeling of a 3-Zone Model
- Modeling of heating, cooling systems with controls
- Evaluation of simulation results
- Hints and tricks
For experienced users or participants of session 1 only
Price per person: 990,00 Euro plus VAT
Seminar 3
Airflow simulation in buildings with TRNFLOW
- Theory and basics of TRNFLow,
- Practice by simulating an office room with double facade
- Execution of various simulations
- Hints and tricks
For experienced user or participants of session 2 only
Price per person: 690,00 Euro plus VAT
________________ TRNSYS 18 Seminars _______________________
Seminar 4
Introduction to 3D-Modeling with Rhinoceros 5
- Theory and basics of Modeling with Rhino
- Guided creation of geometries
- Basics in script programming (Python)
- Creating parametric models
Price per person: 495,00 Euro plus VAT
(book seminar 4 and 5 together and save 200 Euro)
Seminar 5
Building simulation with TRNLizard
- Theory and basics of building simulations with TRNLizard
- Information workflow (Modeling)
- Creating a 1-Zone model with heating, cooling and natural ventilation
- Integrating active building elements
- Multizone simulation
- Analysing simulation results
Price per person: 495,00 Euro plus VAT
(book seminar 4 and 5 together and save 200 Euro)
Seminar 6
Daylight simulation and new features in TRNSYS 18
- New Features in TRNSYS 18
- Theory and basics of daylight simulation
- Introduction to daylight simulation with TRNSYS
- Artificial lighting control by daylight availability
- Daylight simulation and evaluation of results
Price per person: 495,00 Euro plus VAT
Seminar 7
Complex fenestration modeling with TRNSYS 18
- Theory and basics of complex fenestrations
- Creating complex fenestration systems with LBNL Window 7
- Import and integration in TRNBuild
- Static simulation with standard boundary conditions (U-Value, SHGC, Temperatures)
- Simulation and evaluation of results
Price per person: 495,00 Euro plus VAT
______________________________
______________________________ _____________________________
TRNSYS Software Team
Transsolar Energietechnik GmbH
Curiestraße 2
70563 Stuttgart
Fax: +49 711 67976-11
Email: hotline@transsolar.comWeb: www.trnsys.de
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