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I'm beginning to look into obtaining an energy certification and was wondering the differences, advantages, disadvantages, degree of difficulty, etc for the CEM vs. BEAP certification. Any insights would be appreciated.

Thanks, I'll check it out.

EmmanuelTop, Thank you for your assistance, however I do have a question. How do I calculate the film temperature on the inside wall of the insulation?

I have a jacketed piping system using Dowtherm-A / Therminol VP-1 heat transfer vapor @ 290 Deg C to maintain a jacketed pipeline at 290 deg C. I have calculated that the heat loss thru the pipe insulation for a 10 ft long section will be approximately 2500 BTU/hr. The heat transfer fluid will...

Where can I find physical/mechanical properties of ASTM A36 carbon steel and 304 Stainless at temperatures from around 500 deg F to 700 deg F?

Thanks everyone for your input. After discussing with numerous engineers familiar with ventilation I came to 4 ACH per space. This will provide adequate ventilation for the spaces and remove some of the heat in the summer months. The site is located in Charleston, SC so it gets very warm in the...

Why would this table not be applicable?

There is no duct system. Just sidewall exhaust fans and intake louvers.

Yes. I know that is a lot of air but that is what I'm getting from the Greenheck guide.

Thanks for the info, but I'm looking at a Greenheck Technical guide (TI/101-02) that states a warehouse should have 3-10 minutes per air change, using the lower number (3 min) for more severe conditions and higher number (10 min) for less severe conditions. I judge this facility and location to...

ASHRAE 62.1 states that the Outdoor Air requirement for Warehouse is 0.06 CFM/SF. I think this is too low. Do you or anyone have other criteria that could assist me?

I am trying to find out the ventilation requirements for a small warehouse made up of a 1500 s.f. main area and four smaller 500 s.f. areas. The smaller areas are separated by 2-hour fire walls. The ceiling height for all the spaces is 20 ft. There is no hazardous storage in any of the areas...

Ok, after some research I found out that 5 psi is the standard cracking pressure for hydraulic check valves. Thanks for your help.

Hydtools, thanks. Is there a certain cracking pressure I should specify for the spring check valve for this system? How do I determine what cracking pressure to specify?

What is the definition of the cracking pressure for a check valve in a 1500 psi (operating pressure)hydraulic system? Would the cracking pressure be 1500 psi?

The 4" domestic pipe and 10" fire water pipe will be stagnant unless in use. When in use the domestic water will have a flowrate of 20-50 gpm and the fire line will be flowing 2000 gpm. The domestic line will be in use most of the time and will have potable water. The fire line will be tested...

I am replacing a 4" domestic water line and a 10" salt water fire line under a pier. Thinking of using copper or 316 stainless for the domestic and ductile iron for the fire line. Does anyone see any problems with this?

DubMac, I think it was his sight processing speed that gave Ted his ability. It was said that he could read the trademark on the ball of a fast ball pitch while spinning and whirling towards the plate.

Thanks bimr.

I have an existing 48' diameter water storage tank. The roof (end cap) is an ASME type shaped roof. What is the equation or code that dictates the shape of the "end cap"?