Question

Considering the three-surface flux balance model of the zonal cavity method, use the information below to determine the final exitance of the walls ($M_w$). Scan and upload your answer. Show all work. \begin{itemize} \item Rectangular room with dimensions: 17'' 27'' 8'4'' \item Luminaire plane is the ceiling and work plane is the floor. \item Room surface reflectances: $r_c = 80\%$, $r_w = 50\%$, $r_f = 20\%$. \item $F_{c \rightarrow f} = 0.489$ \item Initial exitance of the walls ($M_{0w}$) = 50 lumens/ft$^2$. \item Final exitances of the ceiling ($M_c$) = 125 lumens/ft$^2$ \item Final exitances of the floor ($M_f$) = 30 lumens/ft$^2$ \end{itemize}

          Considering the three-surface flux balance model of the zonal cavity method, use the information below to determine the final exitance of the walls ($M_w$). Scan and upload your answer. Show all work.

\begin{itemize}
    \item Rectangular room with dimensions: 17'' 27'' 8'4''
    \item Luminaire plane is the ceiling and work plane is the floor.
    \item Room surface reflectances: $r_c = 80\%$, $r_w = 50\%$, $r_f = 20\%$.
    \item $F_{c \rightarrow f} = 0.489$
    \item Initial exitance of the walls ($M_{0w}$) = 50 lumens/ft$^2$.
    \item Final exitances of the ceiling ($M_c$) = 125 lumens/ft$^2$
    \item Final exitances of the floor ($M_f$) = 30 lumens/ft$^2$
\end{itemize}

Considering the three-surface flux balance model of the zonal cavity method, use the information below to determine the final exitance of the walls (Mw). Scan and upload your answer. Show all work.

* Rectangular room with dimensions: 17” 27” 8'4”

* Luminaire plane is the ceiling and work plane is the floor.

* Room surface reflectances: rc = 80%, rw = 50%, rf = 20%.

* Fc → f = 0.489

* Initial exitance of the walls (M0w) = 50 lumens/ft^2.

* Final exitances of the ceiling (Mc) = 125 lumens/ft^2

* Final exitances of the floor (Mf) = 30 lumens/ft^2

Added by Brandon J.

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