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09:31 Dec 15, 2010
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French to English translations [PRO]
Tech/Engineering - Energy / Power Generation / Renewable energy
French term or phrase: monotone
In a report on renewable energy, I have several sentences in which the term is used, the most common meaning being exemplified by this:

"L'analyse des *monotones* thermiques de chaque secteur permet d'identifier la part que représente la cogénération dans le besoin total."

At this point I was thinking along the lines of "trend". However, I also have the following:

"Par ailleurs, la TVA réduite à 5,5% lorsque plus de 50% de la chaleur est produite à partir d’énergie renouvelable et de récupération (EnR&R) va inciter les opérateurs à déplacer les cogénérations gaz sur la *monotone* de chaleur et à diminuer les heures de fonctionnement au gaz."

I can kind of see what they are getting at, but I can't think how to put it. I have also come across "monotone de chaleur" being translated as "heating load duration", which doesn't seem to make sense in the context either.

My current thinking is that I will have to translate these two instances differently, but I'd be grateful for suggestions.

At present my brain keeps sticking on "monotone" and repeating (with the sound effects from The Longest Day): "Blessent mon coeur d’une langueur monotone..." which isn't very helpful!
Local time: 03:33

Summary of answers provided
4load-duration curvexxxBourth
Howard Sugar
Wendy Streitparth

Discussion entries: 5



30 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5


Note added at 34 mins (2010-12-15 10:05:42 GMT)

Example for monotonic heat

Wendy Streitparth
Local time: 03:33
Native speaker of: Native in EnglishEnglish
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47 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5

I don't remember my physics very well but I believe tha monotone means that a value increases but does not decrease. In any cae you will find a great deal of material with a brief "google" search

Example sentence(s):
  • The solubility of Co in a number of organic solvents displays a non-monotone temperature dependance reaching its peak magitude at temperature at 280 k.
  • there was a trend of the thermal conductivity monotone increasing with the temperature increase.

    Reference: http://www.wseas.us/e-library/conferences/athens2001/papers/...
    Reference: http://www3.stat.sinica.edu.tw/statistica/oldpdf/A8n14.pdf
Howard Sugar
Local time: 03:33
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5 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
load-duration curve

In power generation, monotone refers to the "monotonic curve" that is the "load-duration curve".

(Kiwipedia says: Monotone, courbe ou Courbe des puissances classés = Load-duration curve).

This is a graph with time on the horizontal scale and load on the vertical, as I remember it. When several power sources (hydro, wind, solar, fossil, tidal) are available, the idea is to plan to put as much of the cheaper sources as possible below the line.

Obviously with CHP you'll have a "thermal" component and a "power" component to the running time of the whole.

The LOAD DURATION CURVE is obtained by reordering the load data of a time interval into a MONOTONE non increasing series. If we normalize the time interval ...

day and by the LOAD DURATION CURVE [2]. Many researchers prefer the load duration curve because demand is MONOTONIC over time. ...

However, the LOAD-DURATION CURVE HAS TO BE MONOTONIC, by construction. Figure 2A .1 has been drawn to show what would actually happen. ...

slope of the curve changes. In the case of a MONOTONICALLY DECREASING CURVE declining irregularly over the interval, such as a LOAD DURATION CURVE, ...

ducing a MONOTONIC DECREASING CURVE as in Figure 1. Such a curve is referred to as a "LOAD DURATION CURVE". If it were possible to predict a winter's load ...

Local time: 03:33
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