I-Beam Calculations

Hi All, I have a cavity wall which extends to roofline, 2 floors, brick external course block internal, tiled roof. I want to cut through a 6FT wide opening for a door way at the base of the wall. However I am unsure of what steel beams I need to support above brickwork. Would 100x150x @ 20KG be ok,

Suppliers of Stainless Steel Pipes

I need to have several stainless steel pipes with a 1 mm thickness, and diameters that allow 1 mm spacing between them. If you know a company that can makes metric pipe please contact me ASAP. Your help is greatly appreciated.

Gas Appliances

why don't all gas appliances come with a specific and concise conversion from NAT to High altitude Nat or lp? it is so wasteful and dangerous to run these things using "their" book. most appliances can and should run optimaly. we can do this.

Determining Lockup Speed

I was just wondering how a car manufacturer decides what is the lockup speed? and also when a car is running below the lockup speed, is the output not constant, as the output is determined by the fluid running the turbine side of a torque converter? Do we also expect to see torque fluctuations as we

Cathodic Corrosion Protection

The statement below is an extract from the request for proposal that am using for the earthing of a 250MW power gas station.Sincerely, i dont understand what they mean by cathodic corrosion protection of the earth conductor and how can this be achieved.The request for proposal clearly stated that pr

Measuring the Thickness of Dry Paint

We have a 50,000 m3 concrete water tank and we paint it by isolation paint from inside and we measuring the thickness of the paint in wet status during process, but I want to ask about a apparatus to measure it in dry status, Is it exits?

Pump Design for Multi-Mode Operation

I'm trying to simplify and cheapen the design of some food processing gear by combining two pumps into one. The two requirements are high pressure (1500 psi), low flow and low pressure, high flow at about the same total horsepower. Is there a pump design, either manual or power-driven, that

Wave Energy Scales Up Off Scotland

Ten wave and tidal projects will generate 1.2 gigawatts of power.

By Peter Fairley Scotland hopes to ride the next renewable energy wave. Site leases for several big wave and tidal power projects were awarded last week by the U.K. government, concluding a two-yea

Diversity Factor for PCs

Hi every one

I have to design (calculate) a cable size for office building has around 50 PC in it.

What diversity factor should apply for this number.

the input power for each is 8 A (Amper).

Scissor Lift Design

i am designing a scissor lift for 15 tons of load and 1m stroke.overall dimension are 4.8m * 2m*1.5m.I am want to know which material should be used for this? & which factor i have to consider for design like bending,buckling etc?

Luna Lift

Dr. Michiu Kako, an American Quantum Physicist believed that someday we may be able to build a Lift linking Earth and Moon, thus making our journey to and from the moon an easy and economic affair.

How viable and possible do you think this concept is ?