Thursday, 11 March, 2021 - 11:35
Historical review of the underfloor heating systems that have been using since ancient times by various civilizations in different geographical areas.

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Sunday, 4 October, 2020 - 19:38

In applied thermodynamics, since the beginning, flow diagrams with directional lines having their thickness proportional to the quantity (mass, energy, heat, etc.) whose flow is being represented have being used. These flow diagrams are currently referred as Sankey’s Diagrams ([1]), so recalling the Irish Captain Matthew H. P.

Tuesday, 29 September, 2020 - 23:09
It is well known that the calculation of the hoop stress and of the thickness in piping subjected to internal pressure is based on the following formula (where: P is the internal pressure, Di is the inside diameter, t is the thickness):
Saturday, 14 May, 2016 - 23:46


A Manufacturer, ASME VIII-1 certified, is committed to fabricate a pressure vessel with a corrosion-resistant internal cladding. He plans to get the welding performed by an external supplier.

Tuesday, 5 April, 2016 - 00:20



Does the standard ASME VIII-1 allow the use of the spiral half-pipe coils (designated as limpet coils by PD 5500) welded to the external surface of the shell as stiffeners against the external pressure? 
What are on this regard the requirements of other international standards?
Thursday, 21 November, 2013 - 21:09

The Time magazine issued on October 28, 2013, has a long and interesting article (Power Surge), signed by Bryan Walsh, on the energy revolution currently in progress in the United States. The event, lasting since three years...

Tuesday, 5 November, 2013 - 15:53

The flame (flashback) arrestors, used, in accordance with the norm EN 730-1, for gas welding equipment subject to the PED, are to be considered as safety accessories or pressure accessories as per PED?

Sunday, 29 September, 2013 - 21:49

On November 14 and 15, Genoa will host the second edition of the international conference on “PED Requirements and A.S.M.E. Code”. The Conference is organized by A.S.M.E. Italy Section (Italian unit of A.S.M.E., American Society of Mechanical Engineers) together with the A.S.M.E. Europe Office...

Thursday, 19 September, 2013 - 23:42

A new blog? Nobody felt it so necessary. I’m aware that anyone entering, by any chance, this blog could have this reaction. I, to say the least, would have it for sure. We are flooded, invaded, overwhelmed by blog, forum, discussions, social networks, communities and whatever the information technology developed. I am so, for sure.