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Integrated HVAC Engineering: Mastering Comfort, Health,
ASHRAE and IBPSA-USA SimBuild 2016:
Building Performance Modeling Conference
August 10-12, 2016 ∙ Salt Lake City, Utah
Our educational programs would not be possible without
support from industry, and specifically the contributions
from Uponor who are
actively involved in ASHRAE on numerous committees and
permit us to develop and deliver programs for the benefit of
This case study presentation is for the
residential practitioner who may be asked to model potential
thermal comfort conditions inside a new cold climate house.
The designer may be unfamiliar or marginally familiar with
the application of ANSI/ASHRAE Standard 55 - Thermal
Environmental Conditions for Human Occupancy.
Using the CBE web-based PMV/PPD modeller, a free online tool
developed on ANSI/ASHRAE Standard 55 and ISO 7730 criteria,
participants will learn about the relationships between the
six general thermal comfort factors and four local factors
as it applies to Standard compliance. Discussion topics
include; how to derive a simple surrogate form for mean
radiant temperature and air velocities when your engineering
modelling budget is next to zero; and how to improve comfort
by incorporating large surface area heat exchangers such as
radiant floors, walls and ceilings instead of increasing
fluid temperatures in fin tube type heat exchangers such as
fan/coils which destroys heat pump and boiler efficiencies.
An evaluation of window performance and window to wall
ratios will also be explored in the context of comfort and
the PMV index.
This presentation is for the residential design practitioner
who may be unfamiliar with the application of ANSI/ASHRAE
Standard 55 - Thermal Environmental Conditions for Human
Occupancy. Using a web-based PMV/PPD modeller, participants
will learn to use a web based thermal comfort tool for
Standard compliance. A practical example of using the
Standard and modelling tool will be demonstrated in a
residential cold climate case study. Illustrated will be the
impact from architectural and HVAC design decisions on
occupant thermal comfort and energy efficiency.
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