Hi, Deuk Woo
I am an 81 years old retired EE professor helping the people in group 4. In fact I have offered to buy a copy of EPlus source code for them, if they are really interested in developing their own module for simulation.
================
I did not quite understand the link which copied below:
My intention here is to have a single thread of will-make-you-a-better-programmer-just-for-reading sort of articles or papers or really standup blog posts that the writer has put in a lot of effort to distill (anything that will take you less than a day to read). I don't have the time to dig through the giant information crypts of the internet (most of the time) so if we help each other by placing beacons on the good stuff, we can all save time.
I see we already have 'What are the best programming articles?' and there is some amount of overlap (at least with the first page) _ I can't find words to articulate the difference that I want to convey. I guess the emphasis is here on the 'craft' aspect.
Hope enough people find this idea to be of some use and contribute.. or it gets voted/closed down and doesn't add to the noise.
=======================
On your other questions, I would say that the Eastern operators are more subjective in their job. They follow safety guide lines, but would apply their own experience in other features.
For example, closing down the OA damper is in the simulation. Whether it should be completely off or stop at the ASHRAE minimum OA requirement is optional. There is enough leak and cracks in a building to provide the minimum OA. The operator knows that closing the damper will not suffocate the occupants.
In a sealed basement, nuclear shelter, it would be different.
I do not think, the operators in S. Korea are less qualified, and made those changes.
A good system should be designed to be easy to operate, and warns when there is a possible dangerous situation. I do not think that a US educated operator knows more.
"many advanced control algorithms " are not used, because they are not really required for the system to meet the local conditions.
Building managers need not be HVAC engineers, and they are not required to be one to operate a HVAC. The operating manual should be providing the necessary information for the operator to use the equipment. Because of Internet and Home pages, etc. , operating instruction manuals are now not sent with the equipment.
Advanced interface is usually a monitoring screen system. Operator can monitor and has no control of the system.
I do not know the training availability in S Korea. In Singapore, the technicians are well trained.
Users starting with third party software for EPlus have more problems. The New OpenStudio is smoving in the other direction by having multiple source formats. OSM is definitely not user friendly and energy saving itself.
=============================
These are not really the reasons for doing simulation.
I use simulation, because I can show the students and graduates who ask questions on how energy saving can be achieved by heating source control, external shades and ventilation without using air-conditioning, before the construction of the building.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: deukwookim@xxxxxxxx
Date: Wed, 18 Jan 2012 15:53:20 +0900
Subject: RE: [EnergyPlus_Support] The purpose of doing HVAC simulation
Dear Dr.Li
Thanks for your reply.
You are in the 4th group, 4) University research students with limited
funding looking for research tools to do their projects.
Here is another ?nasty? question (sorry for my curiosity).
I have heard from HVAC engineers/designers (In South Korea) that, they
argued building operators often violates preprogramed HVAC control
operation schemes because he/she does not aware very well how the system
should be operated, or something else (I don?t know why, please let me
know:-)).
For example, in winter, he/she shut down the OA damper to reduce heating
load (but should be kept open for minimum OA requirements).
In short, many advanced control algorithms (night purge, economizer
control, optimal starting, enthalpy control, power demand control) are not
fully utilized as intended as far as I know.
What do you think about it?
Why this gap happen?
In my guess,
1. Building operators are not HVAC Engineer/designer, thus he/she
cannot fully understand HVAC system operation
2. No educational support to building operators
3. Need for advanced interface to communicate between building
operators and building HVAC and sub systems
4. Other, please specify
I think that HVAC simulation capability of EPlus is outstanding, and it can
be utilized for educational support program.
(Of course, ?very uncomfortable interface? should be enhanced for its
goal. )
I am waiting for your brilliant answer.
And, any Recommended articles/papers
<http://stackoverflow.com/questions/775814/recommended-articles-papers-on-
the-craft-of-programming> ??
Best Regards,
Deuk-Woo, Kim
__._,_.___
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
![]()
__,_._,___
I am an 81 years old retired EE professor helping the people in group 4. In fact I have offered to buy a copy of EPlus source code for them, if they are really interested in developing their own module for simulation.
================
I did not quite understand the link which copied below:
My intention here is to have a single thread of will-make-you-a-better-programmer-just-for-reading sort of articles or papers or really standup blog posts that the writer has put in a lot of effort to distill (anything that will take you less than a day to read). I don't have the time to dig through the giant information crypts of the internet (most of the time) so if we help each other by placing beacons on the good stuff, we can all save time.
The idea is good, but difficult to find. If one is dealing with a complex module, it would need quite a long tutorial to view. EPlus have some tutorials for the earlier version. They are a lot better then the U-Tube version.Must
User do not think that storing a large amount of data and read them on line is also energy wasting.
- influence (or at least cause you to examine) your perspective / outlook on programming.
- be technology-agnostic (not relevant only to a specific community of programmers).
- not be a plug for a new architecture, product or methodology.
- not tied to a specific Role that supports programming. (How to do better specs/UX/etc.)
- not make my brain hurt. Target an intermediate-to-advanced audience without assuming the reader to be a wizard at math / calculus
Good suggestions. However, learning EPlus is not learning a programming language. IDF is a input file to the Frontran based modules. It has very low overhead, energy efficient. Do not need a GUI or Windows to run. to you, it has a ?very uncomfortable interface?.
I have not read any of the papers, and shall try to do so.
I see we already have 'What are the best programming articles?' and there is some amount of overlap (at least with the first page) _ I can't find words to articulate the difference that I want to convey. I guess the emphasis is here on the 'craft' aspect.
Hope enough people find this idea to be of some use and contribute.. or it gets voted/closed down and doesn't add to the noise.
=======================
On your other questions, I would say that the Eastern operators are more subjective in their job. They follow safety guide lines, but would apply their own experience in other features.
For example, closing down the OA damper is in the simulation. Whether it should be completely off or stop at the ASHRAE minimum OA requirement is optional. There is enough leak and cracks in a building to provide the minimum OA. The operator knows that closing the damper will not suffocate the occupants.
In a sealed basement, nuclear shelter, it would be different.
I do not think, the operators in S. Korea are less qualified, and made those changes.
A good system should be designed to be easy to operate, and warns when there is a possible dangerous situation. I do not think that a US educated operator knows more.
"many advanced control algorithms " are not used, because they are not really required for the system to meet the local conditions.
Building managers need not be HVAC engineers, and they are not required to be one to operate a HVAC. The operating manual should be providing the necessary information for the operator to use the equipment. Because of Internet and Home pages, etc. , operating instruction manuals are now not sent with the equipment.
Advanced interface is usually a monitoring screen system. Operator can monitor and has no control of the system.
I do not know the training availability in S Korea. In Singapore, the technicians are well trained.
Users starting with third party software for EPlus have more problems. The New OpenStudio is smoving in the other direction by having multiple source formats. OSM is definitely not user friendly and energy saving itself.
=============================
These are not really the reasons for doing simulation.
I use simulation, because I can show the students and graduates who ask questions on how energy saving can be achieved by heating source control, external shades and ventilation without using air-conditioning, before the construction of the building.
Dr. Li
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
From: deukwookim@xxxxxxxx
Date: Wed, 18 Jan 2012 15:53:20 +0900
Subject: RE: [EnergyPlus_Support] The purpose of doing HVAC simulation
Dear Dr.Li
Thanks for your reply.
You are in the 4th group, 4) University research students with limited
funding looking for research tools to do their projects.
Here is another ?nasty? question (sorry for my curiosity).
I have heard from HVAC engineers/designers (In South Korea) that, they
argued building operators often violates preprogramed HVAC control
operation schemes because he/she does not aware very well how the system
should be operated, or something else (I don?t know why, please let me
know:-)).
For example, in winter, he/she shut down the OA damper to reduce heating
load (but should be kept open for minimum OA requirements).
In short, many advanced control algorithms (night purge, economizer
control, optimal starting, enthalpy control, power demand control) are not
fully utilized as intended as far as I know.
What do you think about it?
Why this gap happen?
In my guess,
1. Building operators are not HVAC Engineer/designer, thus he/she
cannot fully understand HVAC system operation
2. No educational support to building operators
3. Need for advanced interface to communicate between building
operators and building HVAC and sub systems
4. Other, please specify
I think that HVAC simulation capability of EPlus is outstanding, and it can
be utilized for educational support program.
(Of course, ?very uncomfortable interface? should be enhanced for its
goal. )
I am waiting for your brilliant answer.
And, any Recommended articles/papers
<http://stackoverflow.com/questions/775814/recommended-articles-papers-on-
the-craft-of-programming> ??
Best Regards,
Deuk-Woo, Kim
__._,_.___
Primary EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The primary EnergyPlus web site is found at:
http://www.energyplus.gov
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe
__,_._,___