school in downtown atlanta
georgia institute of technology, atlanta, usa
prof. tarek rakha
kiran balakrishna, jane rodrigues, prerana kamat, ameya yawalkar
spring 2020

We live in an era where we are rushed against time to manage our ever-growing energy demands and are required to devise strategies that aid in the smart utilization of all energy sources. Bringing into focus energy conservation would help address several issues such as energy costs, air pollution, greenhouse gases, global climate change, and our dependence on non-renewable sources of energy. Therefore, it becomes vital to seek alternative solutions to meet surmounting energy demands rather than the mere application of conventional systems in design and planning. 

The project seeks to understand the impact of location, environment, and climate on design and how it can integrate design with sustainable building systems to achieve energy efficient buildings. This will be achieved through a series of exercises in modeling, simulations, and data analysis thereafter. Simultaneous precedent studies further assist in the understanding of various systems and strategies currently used in similar climatic conditions and assist in choosing the most efficient solution for the project type.

integrated design summary

dry bulb temperature: adverse temperature conditions are more prevalent thoughout the year with very few days within comfort range.

relative temperature: sun shading strategies to be taken in account for months from june to august due to high temperature and high altitude of the sun and heat gain strategies should be taken in consideration for months of november to february. atlanta experiences high humidity during the summer from months of April to November.

psychometric chart

windrose (dry bulb temperature)

windrose (wind speed)

sunpath (july - december)

sunpath (january - june)

1. Teachers’ Lounge
2. Computer Room
3. Classrooms
4. Toilets
5. Corridors

sectional floor plan

day lighting analysis 

annual daylight autonomy

annual solar exposure

work plane illuminance

annual glare

classroom false color render

classroom rgb render

comp lab false color render

comp lab rgb render

false color and rgb rendering

electric lighting analysis





Article No.
Light Source
Luminaire Luminous flux
Luminaire efficiancy
Color temperature
Luminaire input power
Power factor

60 815 077
720 lm
72 lm/W
2700 Kelvin
10 W

42 933 406
4400 lm
110 lm/W
4000 Kelvin
40.1 W

42 186 129
4640 lm
136 lm/W
3000 Kelvin
34 W

60 818 106
1866 lm
124 lm/W
3000 Kelvin
15 W

false color and rgb rendering - electrical lighting

electrical lighting goals: achieve an efficient lighting scheme using a combination of 2 or 3 lights that provides maximum efficiency with desired illuminance and adheres to the lighting power density of 12.9W/m2  for a school program type.


the toilet is set to a baseline illuminance level of 300 lux while the other spaces require a work plane illuminance of 500 lux.

lpd achieved - 4.06 W/m // note: max lpd for schools is 12.90 W/m and imperciptible glare with dgp 0.12

work plane illuminance

integrated hvac analysis

hvac circuit diagram

cooling mode

heating mode

geothermal heat pump in cooling mode


hvac goals: strive for thermal comfort throughout the year with a reduction of energy demands for heating and cooling through passive design strategies for efficient building envelope like fenestration (louvers, overhangs, double glazed windows etc). To understand how to reduce ventilation energy demands in the given climatic conditions and to seek an integrated design that couples hvac to energy required for water heating.

integrated hvac analysis


supply line


cold water distribution line

hot water distribution line

sanitary waste disposal line


sanitary ventilation line


rain water distribution line


storm water discharge line


integrated water system


integrated water system - overview

water efficiency goals: to curb wasteful disposal of water that can be reused and to conserve/reduce water demand. to study storm water management and ways to store, clean and resuse water for irrigation and non-potable purposes with minimized water consumption in toilets and outdoors spaces including bio re-use of waste for landscaping.