vault backup: 2025-12-11 12:38:04

hvac-calculations.md

@@ -23,8 +23,8 @@ abbreviated Btu<sub>IT</sub>
 
 $$
 \begin{align*}
-1 \text{Btu}_\text{IT} &= \left( 4.1868 \times 453.59237 \times{\frac{5}{9}} \right) \text{J} \\
-&\approx 1055.056 \text{J}
+1 \text{Btu}_\text{IT} &= \left( 4.1868 \times 453.59237 \times{\frac{5}{9}} \right)~\text{J} \\
+&\approx 1055.056~\text{J}
 \end{align*}
 $$
 
@@ -34,8 +34,8 @@ a unit of power.
 
 $$
 \begin{align*}
-1 \text{MBH} &= 1000 \text{Btu/hr} \\
-&\approx 3.412 \text{W}
+1 \text{MBH} &= 1000~\text{Btu/hr} \\
+&\approx 3.412~\text{W}
 \end{align*}
 $$
 
@@ -49,8 +49,8 @@ Unit of power
 
 $$
 \begin{align*}
-1 \text{TR} &= 12000 \text{Btu}_\text{IT}/\text{h} \\
-&\approx 3516.853 \text{W}
+1 \text{TR} &= 12000~\text{Btu}_\text{IT}/\text{h} \\
+&\approx 3516.853~\text{W}
 \end{align*}
 $$
 
@@ -62,8 +62,6 @@ Unit of volumetric flow
 
 ### Airflow
 
-* CFM
-
 External static pressure (ESP)
 measured in inches of water
 
@@ -72,23 +70,23 @@ measured in inches of water
 * Tons (refrigeration)
 * MBH
 
-Entering air temperature (EAT)
-Leaving air temperature (LAT)
-Mixed air temperature (MAT)
+* Entering air temperature (EAT)
+* Leaving air temperature (LAT)
+* Mixed air temperature (MAT)
 
-Latent heat
-Sensible heat
+* Latent heat
+* Sensible heat
 
-Sensible -> dry bulb
-Latent -> wet bulb
+* Sensible -> dry bulb
+* Latent -> wet bulb
 
 #### ???
 
-OSA EAT (F)
-EXH EAT (F)
+* OSA EAT (F)
+* EXH EAT (F)
 
-IN S.L.
-OUT ALT.
+* IN S.L.
+* OUT ALT.
 
 ### Efficiency