0000022661 00000 n 0000018055 00000 n 0000021883 00000 n 0000023778 00000 n 0000000016 00000 n = X CFM X ∆ T.24 X .075 X 60 X CFM X ∆ T = 1.08 X CFM X ∆ T ENTHALPHY = Sensible heat and Latent heat TOTAL HEAT FORMULA (for cooling, humidifying or dehumidifying) BTU/hr. – Specific Heat X Specific Density X 60 min./hr. 0000036972 00000 n <

ENTHALPHY = Sensible heat and Latent heat . 0000023709 00000 n

Temperature Heat Required to Evaporate Water Vapor Added to Ventilation Air Humidification … X CFM X ∆ H = 0.75 x 60 x CFM x ∆ H

0000022361 00000 n Commonly Used HVAC Formulae and Conversions Air Side Q Total = CFM x (h i ‐ h f) x 4.5 Btuh Q Sensible = CFM x (t i ‐ t f) x 1.085 Btuh Q Latent = CFM x (Gr i ‐ Gr f) x .068 Btuh Humidification = CFM x (Gr f‐Gr i) / 1,555 lbs/hr CFM = l/s x 2.12 Air Pressure Drop (in. 0000008548 00000 n 0000039324 00000 n 0000021489 00000 n

0000034107 00000 n 0000034367 00000 n Basic Air Conditioning Formulas TO DETERMINECOOLING Total Airflow Infiltration or Ventilation Number of Air Changes Per Hour – Total Number of Air Changes Per Hour – Outdoor Air Total Heat (HT) Sensible Heat (H S) Latent Heat (HL) Leaving Air D.B. 0000021124 00000 n 0000023461 00000 n 0000015109 00000 n

Academia.edu is a platform for academics to share research papers. 0000047576 00000 n 0000022336 00000 n Temperature (T2) Enthalpy – Leaving Air (h 2) Leaving Air W.B.
= X CFM X ∆T .24 X .075 X 60 X CFM X ∆T = 1.08 X CFM X ∆T. 0000009385 00000 n

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0000034921 00000 n 0000009012 00000 n TOTAL HEAT FORMULA (for cooling, humidifying or dehumidifying) BTU/hr. 32 0 obj << /Linearized 1 /O 34 /H [ 721 269 ] /L 19465 /E 5781 /N 7 /T 18707 >> endobj xref 32 13 0000000016 00000 n 0000000607 00000 n 0000000990 00000 n 0000001204 00000 n 0000002430 00000 n 0000002761 00000 n 0000003087 00000 n 0000003174 00000 n 0000004395 00000 n 0000005514 00000 n 0000005536 00000 n 0000000721 00000 n 0000000969 00000 n trailer << /Size 45 /Info 26 0 R /Root 33 0 R /Prev 18697 /ID[ 7 59 0000014937 00000 n 0000022129 00000 n 0000043690 00000 n SENSIBLE HEAT FORMULA (Furnaces): BTU/hr.

0000019499 00000 n 0000001928 00000 n 0000004525 00000 n 0000014806 00000 n
0000029264 00000 n = Specific Density X 60 min./hr.

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0000021354 00000 n 0000013486 00000 n trailer technical 0000010294 00000 n 0000030252 00000 n 0000001476 00000 n 0000047991 00000 n SENSIBLE HEAT FORMULA (Furnaces): BTU/hr. 0000007911 00000 n 0000039072 00000 n 0000030166 00000 n 0000021436 00000 n 0000062237 00000 n X CFM X ∆H = 0.75 x 60 x CFM x ∆H 0000010810 00000 n 0000062126 00000 n 0000023965 00000 n wg) = Pa / 249 7 0 obj <> endobj

0000037225 00000 n xref %PDF-1.6 %���� 0000043426 00000 n 0000048256 00000 n 0000023940 00000 n 0000001732 00000 n 0000001807 00000 n 0000002444 00000 n HVAC FORMULAS.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. – Specific Heat X Specific Density X 60 min./hr. = Specific Density X 60 min./hr. 0000022198 00000 n 0000035004 00000 n 0000010750 00000 n

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