Magnolia  Apartments  HVAC  System

Rajeev  K.  Gopal  

BS  Chemical  Engineering  

Intern  USF  H&RE  Facili>es  Management  and  Opera>ons  

SGEF  Council  Presenta>on  Project  Proposal  

Outline

 •  Background  -­‐  improvements  to  building  envelope  

•  Photos  •  Energy  Usage  

•  Introduc>on  to  project  

•  HVAC  system  upgrade  •  Equipment  •  New  system  JCI  and  CEA  

•  Sustainability  •  Project  Cost  •  Final  

Magnolia  Background

• Built  in  2001  • Upgrades  in  2017  

•  2’’  layer  of  insula>on  added  to  exterior  walls  •  Roof  replacement    

Result  of  Improvements

50,000  

70,000  

90,000  

110,000  

130,000  

150,000  

170,000  

190,000  

210,000  

1   2   3   4   5   6   7   8   9   10   11   12  

 kWh/yr  

Months  

Energy  Consump>on  

2018   Average  

Introduc@on

• HVAC  upgrade  –  more  efficient  

•  Typically  65%  of  the  energy  used  by  the  building  is  for  space  cooling  and  maintenance  

 • Reduc>on  in  energy  usage  equates  to  cost  and  carbon  reduc>ons  

Typical  Energy  Usage  in  Magnolia  

Lights  

HVAC  system  

Plug  Loads  

Equipment

HVAC  system  upgrade      

Controls  

Higher  Efficiency  HVAC  system

• HVAC  system  SEER  value  –  Seasonal  Energy  Efficiency  Ra>o  

•  SEER  16  –  high  efficiency  •  SEER  14  –  standard  efficiency  •  SEER  13  –  low  efficiency  

• More  energy  efficient  SEER  16  over  exis>ng  lower  efficiency  SEER  13  

•  Installed  to  7  buildings  

Equipment  

Comfort  Series  Heat  Pump  with  Puron  2  Tons  Cooling  

Crankcase  Heater  for  Outdoor  Unit  

Start  Assist  -­‐  Capacitor  and  Relay  for  Outdoor  Unit  

FB4C  Base  Series  Fan  Coil  with  Puron  

5  kW  Electric  Heater  for  Indoor  Unit  

Controls

•  Installa>on  of  controls  to  manage  room  temperatures/setpoints  

•  Temperature  range  constraints  •  Global  set-­‐point  changes  •  Scheduling  for  occupancy  

• Real>me  monitoring  of  equipment  •  Quick  problem  assessment  •  Virtually  no  equipment  down>me  

Energy  Savings

•  18%  savings  vs  simulated  current  

• HVAC  upgrade  vs  simulated  current  

•  Energy  Savings:  249,400  kWh/yr  

•  Cost  Savings:  $22,446  /yr  

1,889,552  

1,459,603  1,397,300  

1,147,900  

0  

200,000  

400,000  

600,000  

800,000  

1,000,000  

1,200,000  

1,400,000  

1,600,000  

1,800,000  

2,000,000  

2006-­‐2016  Average   Current  (real  world)   Current  (simulated)   Proposed  HVAC  Upgrade  

kWh/yr  

Energy  Consump>on  

Sustainability

•  Energy  Savings:    249,400  kWh/yr  

•  eCO2  reduc>on:    176  MT/yr  

•  Number  of  trees:    2,916  seedlings  grown  for  10  years  

•  Number  of  cars  off  road:    37  

•  Amount  of  gasoline  saved:    17,325  gallons  

Project  Cost

Project  Cost  

Item    Cost  

HVAC  Equipment    $        1,659,260.71  

Controls    $              396,507.00    

Student  Engagement    $                        1,500.00    

       

Project  Grand  Total    $        2,057,267.71  

       

Matching  Funds    $        1,784,414.21  

SGEF  Request    $              272,853.50    

SGEF  Breakdown  Request  

Item   Cost  Difference  between  SEER16  and  SEER14    $                    73,100.00    

Student  Engagement    $                        1,500.00    

Half  of  the  controls    $              198,253.50    

SGEF  Total    $              272,853.50    

Conclusion

•  Significant  energy  savings  

•  Large  reduc>on  in  Green  House  Gas  emissions  

•  Improves  equipment  monitoring  and  subsequent  student  life  

 

1.  Team Structure

2.  Site Context

3.  Scope of Work Building Exterior

Roof Replacement Site Lighting

Interior Renovation

4. Challenges

5. What We Did - Best Practices

6. Would We Do It Again?

Thank  you!