English Dictionary

underfiring

IPA（発音記号）

/ˌʌndəːˈfaɪəɹɪŋ/

名詞

不可算名詞 未分類 限定用法

Intentional operation of a boiler, furnace, oven, etc., at a low level. / The state of not burning fuel at the desired level, and thus not providing heat efficiently.

日本語の意味

ボイラーや炉、オーブンなどの燃焼装置を意図的に低燃焼の状態で運転すること、またはその状態。燃料が十分に燃焼されず、効率的な熱供給が行われない状態を指す。

The underfiring of the boiler reduced fuel consumption but led to incomplete combustion and soot buildup.

ボイラーを低火力で運転すると燃料消費は減るが、不完全燃焼や煤の蓄積を招くことがある。

意味（1）

Intentional operation of a boiler, furnace, oven, etc., at a low level.

The designer believes that by this combination of a combustion-chamber with the underfiring grate the combustion of the fuel is improved.

意味（2）

The state of not burning fuel at the desired level, and thus not providing heat efficiently.

In natural gas-fired boilers, gas pressure is critical to proper burner operation and efficient combustion. Variations in gas pressure may cause over- or underfiring of the boiler. […] Underfiring may cause flame instability and poor combustion efficiency due to high levels of excess air.

意味（3）

(also attributively) Heating from below.

[W]hile there were fully as many under-firing as tube-firing boilers, at work, the majority of explosions took place in boilers of the latter class, and they almost invariably commenced with the collapse of the fire flue.

意味（4）

(ceramics) The state of being insufficiently fired or underfired.

Hence it is, I must suppose, that while more effects could be produced with rose if one could only be sure of the fire, yet carmine is the more serviceable, as one is at so much less risk of loss from overfiring, which is more common than underfiring.