ASHRAE Journal - May 2020 - 61

2020 ASHRAE TECHNOLOGY AWARD CASE STUDIES

High-temperature heating water
was used to produce domestic
hot water, further preventing the
growth of Legionella in the domestic
hot water system. Copper-silver ionization was used in the domestic hot
water system to prevent the growth
of bacteria in the domestic hot water
distribution system.
To accommodate future departmental growth, connections were
capped, and ductwork, plumbing,
and HVAC were oversized by 10%.
Ten percent additional contiguous
free shaft space was provided, allowing for future distribution that an
area could require. Isolation valves
are located in each department to
facilitate routine and/or emergency
maintenance without disruptions
to other departments. Design floorplans outlined the best paths of
travel to replace major equipment
(e.g., air-handling units and motors)
without compromising service levels. Plumbing and drainage pipes,
pressurized domestic water systems,
and hydronic distribution routing
were carefully planned to clear sensitive medical, computer, or electrical equipment rooms. Knockout
walls and double doors were provided, allowing access from the
parking lot to ease the equipment
replacement process.

Cost-Effectiveness
The project delivery model necessitated a competition of three teams
for the most cost-effective solution
for designing, building, financing,
and maintaining the Centre over a
30 year period. All design solutions
proposed by the team were analyzed
in terms of both life-cycle costs
and energy savings. For example,
due to the highly efficient building

Return Air to AHU
MOD

OA From ERV MOD
Recirculated Air
From AHU MOD
CV
Hot Water
Supply/Return

Supply
Air
OCC

To/From BAS

T

Return
Air

CO2
Non-CSA Space

FIGURE 2 DOAS zone level control (non-clinical space).

Building
Cooling Loads

Building
Heating Loads
Domestic Hot
Water Heaters

Cooling
Towers
Condenser
Water Pumps
Chilled Water Pumps

Centrifugal
Coolers

Heating Water
Pumps

Heating
Water Pumps

Heat Recovery Chillers

Condensing
Boilers

Geothermal Field
FIGURE 3 Heating and chilled water plant schematic.

envelope, an airside heating system
with no radiant panels was implemented. After reviewing with the
structural and architectural teams,
as well as performing extensive
mock-ups of various room types
in a laboratory facility, we were
confident that a perimeter heating
system would not be required, opting instead for airside heating. The
result was significant installation
and material cost savings.
According to data from the Altus
Group Construction Cost Guide 2014
(with mechanical costs at 33% of

construction cost), mechanical costs
for acute care facilities (based on a
design accommodating future flexibility to convert to an acute care
facility through the addition of an
inpatient tower) in Ontario range
from approximately CAN$173/ft2
to CAN$234/ft2 (CAN$1,862/m2 to
CAN$2,519/m2).
The final mechanical construction cost of Peel Memorial was
CAN$132/ft2 (CAN$1,421/m2).

Environmental Impact

M AY 2020

The project contract included a 30
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ASHRAE Journal - May 2020

Table of Contents for the Digital Edition of ASHRAE Journal - May 2020

Contents
ASHRAE Journal - May 2020 - Intro
ASHRAE Journal - May 2020 - Cover1
ASHRAE Journal - May 2020 - Cover2
ASHRAE Journal - May 2020 - 1
ASHRAE Journal - May 2020 - Contents
ASHRAE Journal - May 2020 - 3
ASHRAE Journal - May 2020 - 4
ASHRAE Journal - May 2020 - 5
ASHRAE Journal - May 2020 - 6
ASHRAE Journal - May 2020 - 7
ASHRAE Journal - May 2020 - 8
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ASHRAE Journal - May 2020 - 10
ASHRAE Journal - May 2020 - 11
ASHRAE Journal - May 2020 - 12
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ASHRAE Journal - May 2020 - 14
ASHRAE Journal - May 2020 - 15
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ASHRAE Journal - May 2020 - 17
ASHRAE Journal - May 2020 - 18
ASHRAE Journal - May 2020 - 19
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ASHRAE Journal - May 2020 - Cover3
ASHRAE Journal - May 2020 - Cover4
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