SEC TION 05 | CLIMATE CONSULTANT

CLIMATE CONSULTANT EXERCISE

This Ground Temperature Chart indicates that using a geoexchange heat pump system is a beneficial passive strategy. According to this chart, the ground at -13.12 ft level in winter remains around 50F and warmer and around 60F in summer, which can help with heating and cooling respectfully.

Geothermal heat exchange system diagram

https://www.tradelineinc.com/reports/2017-5/using-geothermal-exchange-systemsachieve-zero-net-energy-cold-climates

CLIMATE CONSULTANT EXERCISE

These Radiation Range Charts show the solar gain of PV panel surface (in orange). Top one represents the default indicators (for comparison) and the bottom one reflects the position and angle of the PV panels on the site. We can see from this chart that this sustainable strategy is successful for this site location and orientation.

CLIMATE CONSULTANT EXERCISE

Temperature Range Chart indicates that most of the time the temperature is above the comfort zone, which opens the possibilities for passive cooling solutions. Oregon Zoo Education Center implemented natural cross ventilation by installing overhead doors in several classrooms.

Passive cross ventilation and PV panels Opsis Architecture

PSYCHROMETRIC CHART EXERCISE

Oregon Zoo Education Center employs several design strategies that are listed in the psychrometric chart as the ones that impact the comfort level the most. Some of them are:

> Internal Heat Gain 25.9% > Sun Shading of Windows 4.3% > Natural Ventilation Cooling 1.3% Taking advantage of the mild Portland winters, radiant heat pump water-heating and heat recovery ventilation is used as well as geo-exchange heat pump system. The windows on the south facade are protected from high sun with a roof overhang. The passive ventilation strategy is evident in the single-loaded classroom wing with overhead garage doors. Some of the strategies suggested by the Psychrometric chart, like Passive Solar Direct Gain or Two-Stage Evaporative Cooling could not be implemented in heat and humidity sensitive areas with animals habitats.

PSYCHROMETRIC CHART Oregon Zoo Education Center Climate Consultant