Recent content by johngerhart

we are looking for a good set of engineering stds and have contacted several companies . PIP in particular , If anyone has them , would they please comment on their quality . Who else sells a braod based set of design-build-inspect-maintain stds

thank you , but the supplier has been quite evasive even when I asked for an engineering judgement

We have a 9000 hp induction motor on a turbo comppressor . The question has been raised on frequency of allowable starts . per hour, day ,life . We protect the unit with a multi-lin which requires it to get to speed in less than 16 seconds or trip and holds the unit from starting again until the...

thank you , but I was looking for a diameter / pressure drop sizing std , if there is one specifically for gas and/or pipeleines . I have the ASME designation for the installation

dies anyone know a good reference for sizing natrual gas pipelines starting with either 90 or 600 psi, we will be tieing into a new main for a prposed plant expansion

does anyone know a good reference for sizing nat gas pipelines at either 90 or 600 psi , delta P per 100 ft . any good cost data on $/ft installed with cathodic protection versue pipe diameter

Looking for very old references to the reactivity and consequences if organic vapors leak into the salt side . Dupont/API work from the '40s and 50's . Suggestions welcome . Who did Dupont sell this business to?

thanks for the replies , but really looking more for literature references on what might be occurring 850-1000 F materials are britlle with evidence of cracking anyone know who is competent at repairing ? Thanks

Looking for assistnace with incoloy 800 failures modes in heat exchnagers form 500-1000 F , potentially cyclical operation . Some suggestions are carburizing , embrtiilement ? thank you

Need vendors that actually have designed strand dryer for predrying strands before they enter the pelletizer . Tired of home made

application is an oxidation reactor , sparging pure oxygen into a stirred vessel

Need to review possible materials of construction for oxygen sparge pipes from SS to Ni

Need a good reference on the pressure drop rules for dense phase ; ie , types of sweeps , allowable staic lift , etc

look at the weir height at design and estimate liquid holdup accordingly

Can anyone help with estimating annual maint costs for a packaged steam boiler and/or gas turbine , as a % of the original investment ? References would be much appreciated