1

WELLINGTON pic 2

__________________________________

_Sean R. Flynn
_Construction Management

____________Wellington Condominiums
____________Exton, Pennsylvania

Green Design

-Trends in Stone have Reach New Levels at Flynn Stone

2006 herald the dynamic shift in direction for Flynn Stone when it went from being a hard-working Pennsylvania bluestone operation to a full-scale precision, engineered fabricator. Read More.

***DBIA STUDENT GROUP WINS ASC COMPETITION***

 
This is a student-generated Capstone Project e-Portfolio (CPEP) produced in conjunction with the AE Senior Thesis e-Studio.
flower  

Building Statistics

 
b
line decor
  GENERAL   ARCHITECTURE   ENVELOPE   STRUCTURAL   MECHANICAL   FIRE PROTECTION   ELECTRICAL   MASONARY   CURTAIN WALL  
line decor
a
   
Mechanical:

There are no mechanical rooms to the condominium but many mechanical closets. On the garage level there are two mechanical closets centrally located in the garage. The other mechanical closets are located in each condo and supply air for that particular condo. The system is an all air and distributes the air through insulated metal ductworks.

In a little more detail, the garage HVAC systems primary concern is air flow with car pollutants. Proper ventilation is critical when the comfort and safety of homeowners is on the line. The designers from Liberty Engineering have specified that 2 main intake lovers 162 X 30 NCA Model XAD – 6 –GL with motor operated control be installed on the north and south side of the garage. On the east face of the building 6 9300 CFM Jenco fans model FSWE – 302A remove the containments that are entered into the building. Two mechanical closets centrally located in the garage each holding a Renzor CAUA indoor gas fired heating units. The heating units are then connected to 18” diameter fabric ductwork that can supply a CFM of 2200. This ductwork is attached to the slab above and run the lengthways of the structure. Two gas meters on the building's south east side supplies natural gas to the heating units and other parts of the building where needed.

Other rooms worth mentioning of systems involved are the electric/telephone/cable room, sprinkler room, and elevator rooms. Each room has a 24 X 8 transfer duct that sends in 500 CFM of air directly from the space. The electric/telecommunications/cable and sprinkler rooms have a Q Mark electric unit heater. This unit heater would take the intake air and mix to the temperature required for that space. A 500 CFM Jenko Fan model FDWE – 123A on opposite sides of the room exhaust return air back into the space. The two centrally located elevator rooms also contain a 24 X 8 transfer duct that brings in air from the garage space. These rooms contain a Carrier packaged terminal air conditioning unit which has a capacity of 350 CFM. No electric unit heaters are located in these rooms but do contain a 500 CFM Jenko Fan model FDWE – 123A to exhaust the return air back into the garage space. Four carbon monoxide detectors are spread across the entire footprint of the garage to detect any large levels of monoxide present from the fumes of cars.

The stairways only contain a Q Mark electric wall heater model AHW - 44083 on the garage floor level. No other return air or supply air acts in the stairways. All refuse rooms from the garage floor up to the penthouse are connected by a main vertical ductwork for return air. This return air is then sent to a 900 CFM Jenko Fan model LPX 120A that is located on the roof. The typical air distribution for the main hallways are two 630 CFM Trane split – system heat pump units with a Metalaire V400 mixing chamber. The fresh air supplied to this system come directly from the roof’s Metalaire 5000 air inlet and Trane Condensing Units. This air inlet is fed through a vertical shaft closet to each floor level. No return air distribution system is installed in the main hallways and corridors. It is assumed that the return air is lost through opening of doors, stairs, and elevator shaft. Also a build up of high pressure is recommended during a fire. Most likely area for a fire is in the condos and if high pressure is built up in the hallway the less likely smoke will occur in the hallway.

The condominiums HVAC systems begin in there own separate mechanical rooms. Each mechanical room is connected to its own Trane condensing unit located on the roof and contains a Trane cooling coil and gas fired furnace. This is then connected into the mixing chamber and then supplied by air ducts off to each room in the condo. There is only one return air duct that is centrally installed into the condos for reuse of air in the mixing chamber. Ductworks from bathroom exhaust air outlets connect back at the mechanical room and are supplied up to the roof to a Jenco Fan. Also typical on the condos façade is a dryer and range hood vent and a gas and fireplace flue. On the roof there is also roof and elevator relief vents for to balance the buildings inner environment conditions.

 

 

 
 
       
Senior Thesis | The Pennsylvania State University | Architectural Engineering | AE Lab | |
This Page was last updated on December 16, 2006 , By Sean Flynn and is hosted by the AE Department ©2006