psyc rome trik

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PSYCROMETRIK sugiyanto

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Page 1: Psyc Rome Trik

PSYCROMETRIKsugiyanto

Page 2: Psyc Rome Trik

Grafik psychrometrik berisikan lima property fisik

untuk mendeskripsikan udara, yaitu : Dry-bulb temperature ( temperatur bola kering) Wet-bulb temperature ( temperature bola

basah) Dew-point temperature ( temperature

pengembunan) Relative humidity ( kelembaban relatif) Humidity ratio ( rasio kelembaban )

Definisi Psycrometric

Page 3: Psyc Rome Trik

Diagram Psycrometrik

Page 4: Psyc Rome Trik

Kurva jenuh (saturation curve) yang merupakan 100 % RH

Garis skala temperatur bola kering ( 0 % RH)

Kondungan uap air atau skala ratio kelembaban (RH)

Letak garis dan skala pada grafik

Page 5: Psyc Rome Trik

1. saturation temperature

2. dewpoint temperature3. enthalpy4. relative humidity5. humidity ratio

(moisture content)6. wet bulb temperature7. volume of mixture8. dry bulb temperature.

Letak garis dan skala pada grafik

Page 6: Psyc Rome Trik

Pada musim panas diketahui dry bulb temperature 95 oF dan wet bulb temperature 78 oF, berapakah RH, humidity ratio dan dew point ?

Contoh :

Page 7: Psyc Rome Trik

Jawaban :

Page 8: Psyc Rome Trik

Althouse D.A., Turnquist, C.H., Bracciano, A.F., 2004, Modern Refrigeration and Air Conditioning, Goodheart-Wilcox Company Inc., Illionis, USA.

American Standard Company, 2002, Air Conditioning Clinic, New Jersey, USA.

Ariazone, Automotive Air Conditioning Training Manual, Victoria, Australia

Stoeker, W.F., 1996, terjemahan Supratman Hara, Refrigerasi dan Pengkondisian Udara, Erlangga, Jakarta.

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