Suppose you are in an open$-$concept, empty condominium that is fully$-$glazed $(100\%$ window to wall ratio$)$ on one fa$$ade and

half glazed $($floor to ceiling$)$ on an adjacent facade. The other two sides, the floor, and the ceiling are interior surfaces $($i$.$e$.,$

adjacent to another conditioned zone$).$ The condominium space is $10$ by $10$ by $3$ meters. The inside temperature of the glass and

exterior wall are $8C$ and $16C,$ respectively. The floor and ceiling slabs suffer from thermal bridging and the shaded regions

meter from the fa$$ade$)$ have surface temperatures of $15C.$ All other surfaces are $20C.$ Assume all surfaces have a high

emissivity $(0\mathrm{.}9).$ The air is perfectly mixed and its temperature is $21C.$ Assume the core of the seated person is $0\mathrm{.}5m$ above the

floor.

a$.$ What is the operative temperature for a seated person at each of the four marked points below $($A$-$D$)?$

b$.$ Assuming $RH=30\%,$clo$=0\mathrm{.}70,$ airspeed of $0\mathrm{.}25\frac{m}{s},$ and the occupant's metabolic rate is $1\mathrm{.}0$ met, what is the PMV

and PPD at each of the four locations? Use the CBE Comfort Tool for this.

c$.$ Name three adaptive actions that the occupants could take and in no more than $2-3$ sentences each, explaining the

relevant heat transfer modes and the effectiveness and practicality of these actions. Quantify the effectiveness of the

action in the CBE Thermal Comfort Tool or other means $($e$.$g$.,$ methods learned in class$)$; that is$,$ what is the

resulting PMV$?$

d$.$ Name three possible building design changes that could be taken to improve thermal comfort. In no more than $2-3$

sentences each, explain relevant heat transfer models and discuss the effectiveness and economic and energy

implications of these actions.