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portata calorifero inferiore KJ/kg


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00:05 Apr 5, 2007
This question was closed without grading. Reason: Answer found elsewhere

Italian to English translations [PRO]
Tech/Engineering - Energy / Power Generation
Italian term or phrase: portata calorifero inferiore KJ/kg
testing of a substance - under Proprieta combustibili
Andre de Vries
United Kingdom
Local time: 07:39

Summary of answers provided
5heater capacity lower than kJ/kg
4heat capacity less than K3/kg
Peter Cox
2internal energy of less than 1 kJ/kg
Kari Foster

Discussion entries: 7



2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
heat capacity less than K3/kg

A suggestion

Peter Cox
Local time: 08:39
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 16
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6 hrs   confidence: Answerer confidence 2/5Answerer confidence 2/5
internal energy of less than 1 kJ/kg

(Note my confidence level is not high). Although the units kJ/kg can indeed measure "heat capacity", in this case I suspect they are talking about the properties of a gas or other substance, specifically its 'energy density' or internal energy.

Kari Foster
Local time: 08:39
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 12
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6 hrs   confidence: Answerer confidence 5/5
portata calorifero inferiore kJ/kg
heater capacity lower than kJ/kg

k = 1000 è sempre minuscolo (es. km, kg) e qui si scrive kJ e non Kj; mi sono permesso di correggere la domanda

[PDF] AS ASHFormato file: PDF/Adobe Acrobat
Electric heater capacity. iiPotenza termica con batteria ad acqua ... col 50% di umidità relativa) è 49,8 kJ/kg, per cui il punto ...
www.novema.no/novema/06\splitt\iasuw.pdf - Pagine simili

Note added at 6 hrs (2007-04-05 06:52:01 GMT)

calorifero is a heating element; while "potere calorifico inferiore" è il calore specifico (=per unità di massa) che un fluido può cedere

Gas naturale - WikipediaPotere calorifico superiore: 13284 kcal/kg oppure 9530 kcal/Nm3; Potere calorifico inferiore: 11946 kcal/kg oppure 8570 kcal/Nm3 ...
it.wikipedia.org/wiki/Gas_naturale - 56k - Copia cache - Pagine simili

Ricordo che 1 kcal = 4,1868 kJ

Note added at 8 hrs (2007-04-05 08:09:57 GMT)

Qualora si parlasse del potere calorfico (o calorifero) di un combustibile in inglese è:

p. calorifico superiore = gross or higher heating value
p. calorifico inferiore = net or lower heating value

vedi riferimento sotto

The heat (enthalpy) released in combustion, or heating value, is an important parameter in solid waste combustion. The energy produced will be consumed in heating the feed and product gases and lost to the surroundings through the walls of the incinerator. Heats of combustion or heating values are determined using bomb calorimetry. The sample is burned in pure oxygen in an enclosed volume and the energy given off is measured as the temperature increase of the bomb and its surroundings. The measured heat released is the “gross or higher heating value” because condensed water is formed in the calorimeter. The “net or lower heating value” corresponds to combustion conditions producing water in the vapor state.

Local time: 08:39
Specializes in field
Native speaker of: Native in ItalianItalian
PRO pts in category: 223

Peer comments on this answer (and responses from the answerer)
neutral  Kari Foster: I agree with you about the units, but I don't think they are talking about electric heaters here.
5 mins
  -> elettrico o ad acqua o ad olio o ad aria ... la definizione è sempre la stessa; non ti fossilizzare sull'aggettivo elettrico!!!
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