本人ＨＶＡＣ工程师，想多认识几个同行。 - 第3页

baozi · Jun 10th, 2005, 17:34

just post your question.

引用:

作者: gonewithwind416

ACEW, I have some questions regarding energy management system, HVAC control, gas detection system, and HVAC system sequence of operation, etc. How can I attend your meeting each month? thank you very much!
kiteincloud@hotmail.com

jinezhu · Jun 11th, 2005, 23:43

来华枫论坛有好多次了, 但是第一次看到这个HVAC的坛子. 非常喜欢一起讨论问题. 同时借这个坛子向大家借或购买PPE的复习资料. 如果谁有的话或能借到的话, 请EMAIL: jine_zhu@hotmail.com
我在TORONTO. 谢谢

gonewithwind416 · Jun 13th, 2005, 21:28

引用:

作者: baozi

just post your question.

Baozi,
Could you advise me the sequence of operation for heat pump system? the cooling water comes from closed circuit cooler, and the heating water comes from boiler. The heat rejection temperature setpoint is 95F, and the heat injection temperature setpoint is 60F.
Your earliest reply will be appreciated.

baozi · Jun 13th, 2005, 21:46

也可以PM给我

引用:

作者: gonewithwind416

Baozi,
Could you advise me the sequence of operation for heat pump system? the cooling water comes from closed circuit cooler, and the heating water comes from boiler. The heat rejection temperature setpoint is 95F, and the heat injection temperature setpoint is 60F.
Your earliest reply will be appreciated.

gonewithwind416 · Jun 13th, 2005, 22:26

引用:

作者: baozi

也可以PM给我

Baozi,
Thank you so much for your prompt response. There are more than 10 different size heat pumps (Manufacturer is Carrier) in one system for various space. I am asking the general sequence of operation for this kind of heat pump system. Or we can discuss by phone? and I sent my phone number to your PM.

gonewithwind416 · Jun 15th, 2005, 21:47

引用:

作者: baozi

just post your question.

Baozi,
One story group D commerical building, What is the minimum building area which the sprinkler system shall be required as per OBC and fire code?

baozi · Jun 15th, 2005, 22:59

You can ask other HVAC engineers here. They are really knowledgeable. I don't have the code on hand. I may ask my buddy tomorrow about this.

引用:

作者: gonewithwind416

Baozi,
One story group D commerical building, What is the minimum building area which the sprinkler system shall be required as per OBC and fire code?

celina2 · Jun 16th, 2005, 12:10

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引用:

作者: 赤脚医生

本赤脚医生时常接到与HVAC有关的工作请求，多半是政府或其它机构办公大楼级别（in Toronto, Ottawa... ...）。不知专家们感不感兴趣？

我很想知道，讲来听听

jumpfish · Jun 16th, 2005, 14:02

Water loop/source heat pump?

引用:

作者: gonewithwind416

Baozi,
Thank you so much for your prompt response. There are more than 10 different size heat pumps (Manufacturer is Carrier) in one system for various space. I am asking the general sequence of operation for this kind of heat pump system. Or we can discuss by phone? and I sent my phone number to your PM.

Peterspan · Jun 16th, 2005, 16:04

引用:

作者: gonewithwind416

Baozi,
One story group D commerical building, What is the minimum building area which the sprinkler system shall be required as per OBC and fire code?

how many streets it faces? What is the fire-resistance rate of the fire seperation? is it a combustible or non-combustible building? The max building area depends on all these things.

Say, if noncombustible, 1 hour rate, no limited
45 min rate, facing 1 street, 4800 SM

gonewithwind416 · Jun 16th, 2005, 20:54

引用:

作者: jumpfish

Water loop/source heat pump?

Yes, water source heat pump.
Any idea about sequence of operation of closed circuit cooler? Thanks.

gonewithwind416 · Jun 16th, 2005, 20:58

引用:

作者: Peterspan

how many streets it faces? What is the fire-resistance rate of the fire seperation? is it a combustible or non-combustible building? The max building area depends on all these things.

Say, if noncombustible, 1 hour rate, no limited
45 min rate, facing 1 street, 4800 SM

Thank you very much Peterspan, This number is exactly what I am looking for.
Additional question: The building is storage and repair garage area with some hugh overhead doors, aboveground and heated in the winter. The sprinkler system should be wet or dry for this area?

baozi · Jun 16th, 2005, 22:42

不过奇怪啊,你不是在个CONSULTANT里做吗?没有CODE?

引用:

作者: gonewithwind416

Thank you very much Peterspan, This number is exactly what I am looking for.
Additional question: The building is storage and repair garage area with some hugh overhead doors, aboveground and heated in the winter. The sprinkler system should be wet or dry for this area?

gonewithwind416 · Jun 16th, 2005, 23:43

引用:

作者: baozi

不过奇怪啊,你不是在个CONSULTANT里做吗?没有CODE?

有CODE，单位一套，家一套，就是没找到相关条款，不好意思，每天工作太多。

baozi · Jun 16th, 2005, 23:55

看来懒人多啊~~~

引用:

作者: gonewithwind416

有CODE，单位一套，家一套，就是没找到相关条款，不好意思，每天工作太多。

Peterspan · Jun 17th, 2005, 09:49

引用:

作者: gonewithwind416

Thank you very much Peterspan, This number is exactly what I am looking for.
Additional question: The building is storage and repair garage area with some hugh overhead doors, aboveground and heated in the winter. The sprinkler system should be wet or dry for this area?

Sorry, I know nothing about sprinkler system, hope other guys can help you.

PerterMan · Jun 17th, 2005, 21:21

引用:

作者: gonewithwind416

Thank you very much Peterspan, This number is exactly what I am looking for.
Additional question: The building is storage and repair garage area with some hugh overhead doors, aboveground and heated in the winter. The sprinkler system should be wet or dry for this area?

Hi,my friend,I just have a little knowledge about sprinkler system. for general use of the building, the sprinkler system should be wet,but it should be dry if those stuff that the sprinkler system protects are books, computers, something like books and computers. it should be special extinguishing agents if the sprinkler system protects those stuff, like electrical equipment, water will be hazardous agent. good luck!

gonewithwind416 · Jun 17th, 2005, 22:55

引用:

作者: PerterMan

Hi,my friend,I just have a little knowledge about sprinkler system. for general use of the building, the sprinkler system should be wet,but it should be dry if those stuff that the sprinkler system protects are books, computers, something like books and computers. it should be special extinguishing agents if the sprinkler system protects those stuff, like electrical equipment, water will be hazardous agent. good luck!

my two cents: Sprinkler system should not be designed at computer room. Dry sprinkler system should be used at unheating area to prevent freezing in the winter.

PerterMan · Jun 18th, 2005, 19:07

引用:

作者: gonewithwind416

my two cents: Sprinkler system should not be designed at computer room. Dry sprinkler system should be used at unheating area to prevent freezing in the winter.

Hi, you have to use NFPA Standard to design sprinkler system and this is an American standard thta we use it in Canada.

gonewithwind416 · Jun 18th, 2005, 22:49

引用:

作者: PerterMan

Hi, you have to use NFPA Standard to design sprinkler system and this is an American standard thta we use it in Canada.

Yes, I use NFPA 13 for sprinkler system design. My question here is dry sprinkler should be used in unheated area to prevent freezing in the winter. Why a lot of dry sprinkler systems are used in commerical storage garages and repair garages in Canada which heating systems are provided in winter.

Jun 11th, 2005, 23:43	只看该作者 #42
jinezhu Junior Member 注册日期: Apr 2005 帖子: 9 声望: 10	加我一个来华枫论坛有好多次了, 但是第一次看到这个HVAC的坛子. 非常喜欢一起讨论问题. 同时借这个坛子向大家借或购买PPE的复习资料. 如果谁有的话或能借到的话, 请EMAIL: jine_zhu@hotmail.com 我在TORONTO. 谢谢
jinezhu Junior Member 注册日期: Apr 2005 帖子: 9 声望: 10