This site uses cookies. Some of these cookies are essential to the operation of the site, while others help to improve your experience by providing insights into how the site is being used. For more information, please see the ProZ.com privacy policy.
Cookie settings
  1. KudoZ™ Top
  2. Italian to English
  3. IT (Information Technology)

perdite di carico

English translation: head losses

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Italian term or phrase:perdite di carico
English translation:head losses
Entered by: Alessandro Miani

20:43 Apr 11, 2004
Italian to English translations [PRO]
Tech/Engineering - IT (Information Technology)
Italian term or phrase: perdite di carico
Condotti aria preisolati:
.........un corretto flusso dell'aria e ridotte perdite di carico.
Alessandro Miani
Local time: 16:44
head losses
Explanation:
See for instance:
http://www.ifh.uni-karlsruhe.de/ifh/science/envflu/Research/...
http://www.cheresources.com/onlinecalc.shtml
Selected response from:

Luiza M. Charles de Oliveira
Germany
Grading comment
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +3head losses
Luiza M. Charles de Oliveira
4nota
Gian


  

Answers


6 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +3
head losses


Explanation:
See for instance:
http://www.ifh.uni-karlsruhe.de/ifh/science/envflu/Research/...
http://www.cheresources.com/onlinecalc.shtml

Luiza M. Charles de Oliveira
Germany
Specializes in field
Native speaker of: Native in PortuguesePortuguese
PRO pts in category: 4

Peer comments on this answer (and responses from the answerer)
agree  Sergio Scotti: or pressure losses
21 mins
  -> Grazie. Sì, "pressure losses" va anche bene.
agree  Gian: head losses (see Glossary)
11 hrs
  -> Grazie, la nota sotto è perfetta!
agree  Stefanie Sendelbach
1 day 21 hrs
  -> Danke, sundari.
Login to enter a peer comment (or grade)

11 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
nota


Explanation:
Sono d'accordo su "head loss" o "losses of head" che si misura in colonna d'acqua (m, cm, mm).
La perdita di pressione "pressure loss" si misura in bar o kPa
Per calcolare la perdita di carico dovuta ad una "caduta di pressione" di 100 Pa si divide tale valore per l'accelerazione di gravità = 9,81 m/s² e per la massa volumica (se acqua = 1,2 kg/m³).
Conclusione in una tubazione percorsa dall'acqua:
Perdita di carico (m H2O) = caduta di pressione 100/(1,2 x 9,81) = 8,495 metri di colonna d'acqua

---------------------------
perdite di carico concentrate => minor losses of head or local losses of head


minor losses of head or local losses of head

From Handbook of Hydraulics (E.F. Brater- H.W. King)
Energy losses resulting from rapid changes in the direction or magnitude of the velocity are called "minor losses" or "local losses".
....
they are the following:
Loss of head at Entrance
Loss of head due to Enlargement
Loss of head due to Contraction
Loss of head due to Gate Valves
Loss of head due to Bends

Minor losses (or local losses) as distinguished from the friction loss in the straight sections.



--------------------------------------------------
Note added at 14 hrs 33 mins (2004-04-12 11:17:15 GMT)
--------------------------------------------------

Faccio una correzione; ho scritto acqua invece di ARIA (pensando alla colonna d\'acqua); infatti la massa volumica dell\'acqua, come noto è 1 kg/dm³ ovvero 1000 kg/m³; mentre è l\'aria (a circa 20 °C)che ha una massa di 1,2 kg/m³.
Correzioni:
... (se ARIA = 1,2 kg/m³).
Conclusione in una tubazione percorsa dall\'ARIA: ...


Gian
Italy
Local time: 16:44
Native speaker of: Native in ItalianItalian
PRO pts in category: 28
Login to enter a peer comment (or grade)



Login or register (free and only takes a few minutes) to participate in this question.

You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.

Return to KudoZ list

KudoZ™ translation help

The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases.

See also:
ProZ.com term search
Search millions of term translations
Close search
Term search
  • All of ProZ.com
  • Term search
  • Jobs
  • Forums
  • Multiple search