Šilumos Kieko Apskaičiavimas Flashcards

1
Q

Šilumos kiekis

A

Vidines energijos kiekis, kuro kunas gauja arba netenka silumos perdavimo budu

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2
Q

Silumos kiekis priklauso

A
  1. Nuo kuno mases
  2. Nuo temperaturos
  3. Nuo medziagos rusies
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3
Q

Savitoji siluma

A

Tai yra silumos kiekis, kurio reikia vienam kilogramui medziagos susildyti 1°C

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4
Q

Delta

A

Temperaturos pokycio skirtumas (galutines ir pradines °C skirtumas)
Pradinis: 10°C Galutinis:100°C
Delta: 100°C - 10°C = 90°C

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5
Q

Jeigu sikumos kiekis teigiamas

A

Energija sunaudojama

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6
Q

Jeigu silumos kiekis neigiamas

A

Energija isskiriama

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7
Q

Silumos kiekis zymimas

A

Q

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8
Q

Silumos kiekis matuojamas

A

Dziauliais (J)

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9
Q

Temp. zymima

A

t

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10
Q

Temp matuojama

A

Laipsniais celsijaus
°C

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11
Q

Savitoji siluma zymima

A

c

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12
Q

Silumos vieneto zymejimas

A

J
___
Kg°C

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13
Q

Kaip silumos kiekis apskaiciuojamas

A

Q = c m (t² - t¹)
t² - galut. temp.
t¹ - prad. temp

Q = m c (delta) t

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14
Q

Mase zymima

A

m

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15
Q

Mase matuojama

A

Kg

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16
Q

Mase apskaiciuojama

A

m = V • S (tankis • turis)
m = Q : c (t¹ - t²)

17
Q

Kaip apskaiciuoti savita siluma

A

c = Q : m (t¹ - t²)