Hi CR4 members,

I am planning to install a solar water heater (Solarhart) 180litre capacity to supply hot water in my 3 bedroom house with 2 bath tubs, 2 washhand basins and 1kitchen sink.And in my design I was thinking of installing a 1.5kw heating element with a timer to top up in cas

Hi all, can someone please tell me what are the advantages of using a trunnion pipe support? I guess that since it is welded on the pipe, it will prevent pipe movements in any directions, but then why would you use a trunnion instead of an anchor?

Thank you!

Hi all, I would like to ask what is the differences between a swage and a reducer? When and why would you chose one over the other?

Because to me, both of them achieve the same tasks, the only differences I see is that swage is machined and reducer is formed?

Thanks!

Let us say I get following message into my mail box.

There was a new comment by Ron (replying to DDjames) in a discussion that you subscribed to:

Is IC Piston Engine Really Less Than 1% Efficient? (http://cr4.globalspec.com/thread/50754?frmtrk=cr4sd#newcomments)

When I cli

Years ago before GFCI Breakers, Hot tubs away from the main house needed to have a seperate Ground conductor going to a Ground Plate or Ground Rod independant of the bond conductor entering with the power cable from the main panel.

Once the GFCI breaker was manadatory for a hottub was intro

How can I fix this noise. when I start my Ram 1500 year 2005,the motor sounds like no oil on it,but after 10 seconds the noise disappear and the motor works very smooth...

Best Regards.

Hi All

I am busy with the earthing design of a 60m telecommunication tower. I am using copper for the entire earthing. The area is 19x13m. the tower has 3 foot foundations of 3.8x3.8. I have assumed earth resistance of 2ohm and soil resistivity of 100ohm/m. The ps i have assumed as 3000ohm/

I have an old Ford pick up 1991 with an inline 6 (4.9) EFI. I know its old but I have water running out the tail pipe wheb its warming up I have to add antifreeze every 3 weeks about 1/2 gallon and yesterday I fired it up and it sounded like a deisel but it quit after a few minutes and has not made

how to interpret DIN screws standards and what are the similar - Send me informations,please.

biasing.... wats this actually

i missed classes and all in water.. its the only problem i ve

can any one help me in this...........................................

I just want to share this link to complimetary subscription of this magazine: Machine Design

Available only to US and Canada.

Hello,

Presently, I'm dealing with a rectangular pressure vessels. I need to design a Tube-sheet for it. Appendix UHX of ASME talks about only circular tube-sheets.

How to design a rectangular tube-sheet? Is there any code talks about it?

Can you guide me in this regard?

can anyone please explain me the procedure of how the rotor resistance is increased(practically) by salt water addition, at the time of starting of the slip ring induction motor.

Dear all, actually i am going to simulate active power filter in matlab using fuzzy logic controller.

so my question is that is there necessry to design another controller before fuzzy logic controller?

Hi everybody!

I'm researching into some parts glass cutting machine but I don't have any document about cutting glass! Especially the speed and the pressure required to cut a glass! Who are those know about this document, please sent it to me via my email

Thanks very much!

could someone please help me to give calculation formula of Neutral Ground resistor.

Hi,I'm currently studying Chemical Engineering in a college in India and am in my final year.I appeared for the written test of a leading petrochemicals company in India a few days back...now even if I do manage to clear that test and get called for an interview,I have no idea as to what will be ask

how can one melt gas based dri of high carbon 1.6% and fe(m)82 and metallisation of 92% in a 8 tonne induction furnace? how much of maximum quantity can be charged ?do we need to charge pig iron and scrap and lower grade of dri along with the above gas based dri? please let us know in the percentage

how to desin water turbine blades for low head rivers

Dear All, I havnt seen practically pumping station (Desalination plant) can any one give clear pictures about pumping and pumping station instrumentation and pumping line field instruments.