lOTOfAX
BREVARD PLANT
PHOTO PRODUCTS DEPARTMENT
VOL. 13, NO. 5 JULY/AUGUST, 1980
REACHING FURTHER for energy savings takes
on new meaning from the viewpoint of the man up the stack
at the powerhouse. Insulating the stacks is part of the work
required to install economizers on the steam boilers. This pro
ject win save an estimated 250,000 gallons of fuel per year,
according to the project engineer. Jack Harron.
This is a "hot" job in several ways. It is necessary to complete
the job as soon as possible, and energy conservation continues
to be a major concern for both the plant and we Company.
". . . and the stack is hot, the sun is hot, and it's hot work get
ting up here," says the workman. "A hundred feet is a long to
go when it's all straight up."
DUPONT PRODUCTS MEET SOLAR NEEDS
Many DuPont products are making solar energy a more
practical alternative for heating water and temperature condi
tioning living spaces. Among the company products which
shine in the solar marketplace are:
• Tedlar PVF film which serves as an outer glazing on solar
collectors. “Tedlar" is a tough, lightweight film which can
withstand extreme weather conditions and rough handling dur
ing installation and use. It is capable of transmitting about
90% of the energy which strikes its surface.
• "Du-Lite" finish works as a solar selective coating on flat
place collectors. Du-Lite promotes absorption of solar radiation
and retention of thermal energy.
• "Teflon" (FEP) solar film is used as an inner glazing for
flat plate collectors. Teflon creates dead air space between
outer glazing and absorbers, improving efficiency of solar col
lectors. Due to Its heat resistance. Teflon can withstand the
high temperatures generated in such dead air space areas. Like
other DuPont solar products. Teflon is lightweight and holds
up under extreme weather conditions. It transmits 96% of the
solar energy which reaches its surface.
• "Nomex" aramid felt, fabric or paper products insulate
the absorber plates, reducing heat loss from the collector by as
much as 10%.
• A variety of DuPont elastomer products are ideal for use
as adhesives, seals and grommets.
• A key material in solar energy collection devices is the
heat transfer medium which carries the captured energy to
storage or into a building's utility systems. DuPont "Freon"
heat transfer fluid is ideal for this service.
Du Pont Products
on a Typical Solar Collector
TEDLAR® PVF Film for Outer Glazing
TEFLON® (FEP) Solar Film tor Inner Glazing
Outer Glazing
Seals of DuPont
Elastomers
. NOMEX® Aramid
for Insulation
FREON* Heat Transfer Fluid
Scaffolding gives a boiler stack the
look of oriental architecture as Covil
Construction workers apply a shiny over
coat of insulation, necessary to keep cor
rosive condensates from forming inside
the stacks.
Address Correction Requested
Bulk Rate
U.S. Postage
PAID
Box 267, Brevard, N. C. 28712
Brevard, N. C.
Permit #66