Exhaust Flue Gas – Duct Material

Hi! My design of Flue gas heat recovery system is complete. I am utilizing heat pipe stack to pre-heat the feed water using the heat from the exhaust flue gases of a boiler. The temp of flue gas at the entry of the system is at 230DegC. I am stuck with the selection of the material for the casing. C

Shealth Voltage Limiters and Zener Diodes

I'd like to know about Sheath Voltage Limiter. Suppose my system has 10 outgoing fdrs. Is it possible to use only one set SVL to protect all 10 fdrs? I like mean that all earth shunts of all cables will be connected to a common bus and that bus will be connected to earth bus via SVL.

Is it po

Power Consumption Calculation

Dear Sir,

The mould temperature controller tries to keep the mould temperature constant depending upon the molten substance e.g. whether plastic, zinc or aluminium or their alloy being used. Assuming it is begining of the process when the mould temperature is assumed to be the ambient atmos

Voltage Relay Sensor and DC Power Supply

im working with a voltage relay sensor for generators with just using a magneitc relay series with a resistor dc supply is 24v dc. operation is the relay is partially energized dc supply is less that 24 v dc. as the generator starts up dc voltage decreasing so relay was de-energized which is normal

Toroidal Choke Choke

Hi to all

I have a a toroidal choke core ( RadioShack #273-104),it has AL 175 mh/1000 turns.

So i can make 1.19 mh choke by using 82.5 turns.

My question now:

Can i use it for any current by selecting the right wire size ?

Does a high current could take i

Wireless Printing

Hi, I have a wireless network set up, and have 2 computers on it; Mine (which has the printer attached), and the other one. I have set it up for file and printer sharing, and I can access the shared docs on the other computer, but the other computer can't print wirelessly. Every time you try to

Do You Honor Parking Chairs in Your Culture?

This morning, Tom and Ray on Car Talk got a call about parking chairs. The gist of their answer was that it depends on where you live. In North Boston, apparently, it is considered good manners to slash the tires on anyone who violates a parking chair, but in other cities, it's unheard of.

1995 Dodge Caravan – Engine Stalls

I recently put a new transmission in and now my engine stalls when it is running for about 20 minutes. If I let it sit for about the same amount of time it will again run for about 15 minutes and the does it again. I pulled the codes and got 12,43,34,55. I've replaced the coolant sensor but the p

Shaundra Daily

At 31 years old Shaundra Bryant Daily has already made an impact on the lives of young girls around the world. Born in Nashville, TN, Daily received a B.S. in Electrical Engineering from Florida State University (2001), a M.S. in Electrical Engineering from Florida A&M (2003), S.M. in Media