For this exam, use $\backslash (\backslash$underline$\{$x$\}=6\backslash )$ if your first name starts with $\backslash (\backslash$mathrm$\{$A$\}-\backslash$mathrm$\{$I$\},=7\backslash )$ for $\backslash (\backslash$mathrm$\{$J$\}-\backslash$mathrm$\{$N$\},=8\backslash )$ for $\backslash (\backslash$mathrm$\{$O$\}-\backslash$mathrm$\{$Z$\}\backslash )$

$\backslash (\backslash$underline$\{$x$\}=\backslash )$

use $\backslash (\backslash$mathrm$\{$y$\}=2\backslash )$ if your last name is A$-$I, $4$ for J$-$N$,6$ for O$-$Z

$\backslash (\backslash$mathrm$\{$y$\}=\backslash )$

Submit your psychrometric chart with this solution.

Taken From: Pharmaceutical Engineering Graduate Program

New Jersey Institute of Technology

A pharmaceutical company wishes to construct a manufacturing space which will require an HVAC system that functions within the following parameters:

Space drybulb temperature $\backslash (=74^\{\backslash$circ$\}\backslash$mathrm$\{$F$\}\backslash )$

Space relative humidity $\backslash (=60\backslash \%\backslash )$

Internal sensible load $($Qs$)=$ x$6,000$ BTU$/$hour

Internal latent load $($QL$)=2$y$,000$ BTU$/$hour

Minimum outside air flow $\backslash (=400\backslash )$ CFM

Design outdoor air drybulb temperature $\backslash (=94^\{\backslash$circ$\}\backslash$mathrm$\{$F$\}\backslash )$

Design outdoor air wetbulb temperature $\backslash (=74^\{\backslash$circ$\}\backslash$mathrm$\{$F$\}\backslash )$

Problem

$1.$ Calculate the SHR

$2.$ Find the required supply airflow and temperature for $90\backslash \%$ RH SA

$3.$ What is the apparatus dew point without outside air considerations?

$4.$ What is the mixed air temperature and RH $?$

$5.$ Calculate the cooling coil load to provide the supply air CFM and temp $($Prob$\backslash$#$1)$ using mixed air

$6.$ What is the new apparatus dew point?