CPCCBC5009A: Assessment 4 - Plumbing, Electrical, HVAC Systems Design

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Added on  2021/06/14

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This document presents a comprehensive project report on the design of building services for a medium-rise apartment complex located at 2135 The Boulevard, Strathfield, NSW, for AKM Developments, designed by Olympic Designs. The assessment, CPCCBC5009A, covers the design of plumbing and reticulation systems, including a fully vented modified system, detailing its operation and advantages. It includes a stack work diagram and a reticulation system schematic. The project also encompasses a lighting and wiring diagram, a comparative analysis of viable hot water systems (solar, heat pumps, instantaneous, and gas heaters), and a report comparing individual air conditioning systems versus building-wide systems, considering factors such as power load impact, tenant needs, safety, and resource use. The report provides detailed insights into each system's operation, merits, and limitations, supporting informed decision-making in building design. The project's focus is on providing efficient and sustainable building services solutions.
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CPCCBC5009A: Assessment 4
TASK CONTAINED:
Part A: Plumbing and reticulation system design
Part B: Lighting and wiring diagram
Part C: Brief Report on Viable hot water system
Part D: Brief report on Individual air condition system
Assignment relates to the following Project:
19735 Project 2 Medium Rise Apartments
Job Address: 2135 The Boulevard, Strathfield, NSW
Job Title: Proposed Commercial and Residential Development
Client: AKM Developments
Architect: Olympic Designs, 55 Olympic Pde, Homebush, NSW
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Part A: Plumbing and reticulation system design
A.2: Plumbing system design
In this case, we select the fully vented modified system which is normally composed of fixtures that discharge to the same
common graded discharge pipe. Singularized air admittance valves are eliminated and there is no individualized venting
of fixtures like the fully vented system (This is as per AS 3500, part 2).
This system was selected due to the following reasons:
-It is relatively cheaper than the earlier version as it eliminates unnecessary duplication of the admittance valves
-It operates in a quiet fashion with almost zero foul smell allowed within the building
-There is also economical use of space as the layout optimizes the available space.
-Normally discharge of individual vents is via common discharge pipe
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Figure 2: Fully vented modified system
A.3: How System Operates:
In this system, there is a heating plant composed of gas heater and heat exchanger (mostly located at the lowest levels of
the building but in a secure place) such that the tube bundles receive heat from the hot flue gas (burnt in the gas heater)
and this heat is transferred to the cold water which flows from the reservoir (installed at the roof top) so that water can
easily flow by gravity. In the design, the system is integrated such that cold water can still be supplied to the designated
areas by utilizing by pass lines as shown. Meanwhile, the used water is recycled by being directed to a water treatment
plant within the building and later is pumped to the second reservoir (also installed on the roof top). The recycled water
can be used in wet areas to facilitate, for instance, human waste flashing. The fresh water can be utilized in the wet areas
as in washing clothes and bathing among other uses apart from cooking and drinking which must be sourced from the
local council water supply.
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A.3 ‘stack work’ diagram
Figure: Stack work diagram (sectional view)
Figure 2: A stack work diagram
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How system works:
The waste water from the wet areas is drained into a single trunk as shown via the branching drainage lines shown. This
water is safely and quietly conveyed to the main drainage line underground and disposed at a safer distance. The ball-like
feature is the venting system to drive out foul smell and maintain proper internal air conditions. It allows fresh air to freely
jet in and freshens the building interior while disallowing accumulation stale air.
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A.1 Reticulation system design
Figure 1: Water Reticulation system schematic design
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Part B: Lighting and wiring diagram
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Part C: Brief Report on Viable hot water system
In selecting the most viable hot water system would often involve enquiring about the building requirements, the financial
capacity of the owner, local regulations and the occupant’s preference, climatic conditions among others. However, far
from these factors, there are basic selection criteria and the following discussion provides the merits and limitation of each
system:
CRITERIA 1.Solar heater 2. Heat
pumps
3.
Instantaneous
water heater
4. Main
pressure
heaters
Gas water
heaters
Cost This is the
cheapest
system to run
however it
normally
requires higher
costs initially
Initially
higher costs
of
installation
Also relatively
cheap
Since no
venting
required,
operational
costs are
minimized
Since
permanently
available,
tariffs do not
vary
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Efficiency and
Reliability
Not very
reliable as
radiant energy
is dependent
on climatic
conditions
hence not
suitable for
large and
complex
buildings;
Boosters may
be needed to
ensure
continuous
supply of hot
Low energy
consumptio
n
Not suitable for
heavy building
s
Only efficient
in high
volume
heating as
the heat can
only be
stored for
awhile and
then it
dissipates
Their
efficiency
have been
boosted;
they are the
most
suitable
systems for
large and
complex
buildings.
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water
Logistics Economical in
small
residential
buildings as it
can easily be
squeezed in
the available
space and
usually it
integrates very
well with most
homemade
designs; It is
also
environmentally
Complex
system for
installation
and running
Compact size
makes it
suitable for
economical
space
Can be
connected
directly to the
main water
supply hence
most suitable
for large and
complex
buildings.
In large
buildings,
the system
complexity
may
increase
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