Flame cutting rebar | Eng-Tips Can someone point me to a source that includes procedures on cutting rebar and why you should not flame-cut? I am trying to cite a reference in addition to common sense when explaining to a contractor that he should not use flame-cutting
No of Passes | Eng-Tips What do you want to know? Your number of passes is dependent on the length of pipe you need to affect your temperature difference I can help you if you tell me a little more aout the problem Mass flow rate, required temperature difference, fluid?
Effect of Molecular Weight On Compressor Performance Reference to the link, I think the reasoning on peripheral Mach number is more adequate than Molecular weight to explain the impact on the shape of performance curves A lighter gas may produce similar effect on curves (reduction of range, curve steepening effect) to that of heavy gas if both are associated to conditions with equivalent Mach numbers
Internal wind pressure | Eng-Tips So when you get a net difference between a set internal pressure and a different exterior pressure, you get a net pressure applied to the walls of the box This is not necessarily the full internal pressure effect used in ASCE 7
Motor Starting Power amp; Power Factor | Eng-Tips The starting power factor has nothing to do with with running load kW 0 36 sounds a little high, but the difference between assuming 0 2 and 0 36 should not be too significant You need to pick a NEMA starting code in the softwware that matches the actual starting current data for your motor
Support Types and Their Reaction Forces | Eng-Tips Makes a big difference to reactions, but it doesn't really affect the answer 1) All 3 are pin support - this is correct if the member is connected to the support beams through positive fastening
Torque spec changes from nut to bolt head? | Eng-Tips In a torque spec for a typical bolt, washer and nut arrangement, is the proper torque value affected whether it is applied to the bolt head as opposed to the nut? Thanks!
Pinned Rolling support in Roof Truss (timber) | Eng-Tips Can anybody explain in simple terms for a truss newbie What is the difference between designing a truss with two pinned supports and designing it with one pinned and one rolling?
Threadlock and torque specs | Eng-Tips There are some gasket sealers that work good to inhibit moisture or other fluids from entering the threads of threaded fasteners With the torque turn method you mention, the lube on the threads does affect the initial pre torque What size are the threads and what is the initial torque?
Wye Wye Transformer Grounding Bonding | Eng-Tips With no switch between the station service and the wye winding, this keeps the transformer energized without load The sub A transformer now becomes a very good grounding bank for distribution unbalance As I recall, unacceptably high neutral current and unbalanced voltages were the result until the substation A transformer wye side was isolated