ASHRAE Journal - September 2014 - 88

Mechanical, Electrical, and Network Load
Mechanical and electrical load profiles are significantly impacted by both "human occupancy and digital
occupancy." Additionally, the rapid changes that occur
in electronic or digital technology create a moving target
and make predictive analysis more difficult. As a result,
it is a challenge to identify the transient and steady state
load profile for both current operations and across the
life of the mechanical and electrical systems.
Mechanical and electrical designs have always needed
to provide support and services for equipment; both
fixed connections and plug loads (removable or mobile
connections). This includes the struggle to obtain equipment specific data as often, these elements have not
been defined during the design phase. Usually more
specifics are discovered at the end of construction and
adjustments or refinements are then made.
In the digital age, this lack of information intensifies
the complexity of design, as a significant percentage of
the equipment load can be attributed IT equipment and/
or technology centric equipment. Understanding that
technology equipment can change multiple times during the life expectancy of the power and cooling equipment represents a real challenge.
It would be easy to assume that handheld portable
devices have no impact and portable plugged devices
have minimal impact. However, over the years, model
energy codes have decreased lighting power budgets
by at least a factor of three and the building envelope
performance has greatly improved. This combination of
changes, external to the digital equipment impact, has
resulted in a trend of declining installed capacity. This
trend consequently increases the contributory impact of
the other internal load sources such as portable and stationary digital devices and human occupants.

Digital Healthcare
The definition of digital healthcare from available
online resources is broad, far reaching, and highly cross
functional:
"Digital healthcare is an upcoming discipline that
involves the use of information and communication
technologies to help address the health problems and
challenges faced by patients. These technologies include
both hardware and software solutions and services.
Generally, digital healthcare is concerned about the
development of interconnected health systems so as to
improve the use of computational technologies, smart
www.info.hotims.com/49808-7
88

ASHRAE JOURNAL

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SEPTEM BER 2014



ASHRAE Journal - September 2014

Table of Contents for the Digital Edition of ASHRAE Journal - September 2014

Contents
ASHRAE Journal - September 2014 - Cover1
ASHRAE Journal - September 2014 - Cover2
ASHRAE Journal - September 2014 - 1
ASHRAE Journal - September 2014 - 2
ASHRAE Journal - September 2014 - Contents
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ASHRAE Journal - September 2014 - SCover1
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ASHRAE Journal - September 2014 - S1
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ASHRAE Journal - September 2014 - Cover3
ASHRAE Journal - September 2014 - Cover4
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