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re: pv pond aeration
21 jun 2004
ptaylor   wrote:

>> join solar guru steve baer and pe drew gillett and phd rich komp and 
>> me for an all-day workshop on solar house heating and natural cooling
>> strategies ("hvac nonsense") on july 9 in portland, or--see page 25 of 
>> http://www.ases.org/conferences 2004_call_for_papers/solar2004_prelim_program.pdf
 
>portland,oregon, you say?  i may just see you there! ;-)

great :-) we have 20 participants so far, including several practicing
architects and solar house designers and engineers. space is limited.

here's a longer description:

many people have heard of ohm's law in connection with photovoltaics, but
they may not be aware that it also applies to heatflow in houses (with
different units) and that solar heating can be enormously cheaper per peak
watt than solar electricity and that most houses need more heat than electrical
energy (the ratio is 1:1 in hawaii and 5:1 in vermont) and that this small
slice of the home energy pie can shrink even further with more efficient
appliances and compact fluorescent bulbs...

we propose a workshop on "ohm's law for heatflow" with applications to solar
water and house heating and natural cooling, partly a basic tutorial ("what is
a btu?"), and partly a discussion of tried and untried schemes for increasing
solar heating fractions ("how much does performance improve over direct gain
if we remove the mass and separate the sunspace from the living space with
an insulated wall and circulate warm air between the sunspace and the living
space during the day and stop the air circulation and let the sunspace get
cold at night?" is a question that can't be answered with doe's latest user-
friendly energy-10 program...)

we would provide arithmetic and data and strategies needed to site-build
effective house heating and cooling systems using common, inexpensive skills
and materials like curved 1x3s and polycarbonate glazing. workshop participants
should be familiar with high school algebra. we would use calculators to
design a house to be 100% solar-heated in the worst-case month of the year,
using monthly averages from nrel's solar radiation data manual for buildings
("blue book.") we would do simple, direct, laptop simulations for various
solar house heating configurations with tmy2 weather data and basic or
spreadsheet programs, using simple equations from physics for deep insight.

we would discuss power, energy, heatflow, and overnight and cloudy day heat
storage at the high-school math and physics level, with insulation values
and heat capacities of materials, time constants, evaporative and nocturnal
ventilation cooling with "smart whole house fan controllers," passive and
low-energy solar heating, superinsulated houses, and ideas for houses that
are 100% solar-heated, by design. promising techniques include solar closets
and shelfboxes, soap bubble foam insulation, and 2:1 concentrating solar
attics that collect heat and electricity from standard pv panels under
drain-down water-filled lay-flat poly film ducts on the attic floor.

we would also discuss a simple counterflow greywater heat exchanger, a $60
1"x300' plastic pipe coiled inside a 55-gallon drum. with hot water bursts
of 13 gallons or less, this could be 97% efficient, and maybe illegal, these
days, like harry thomason's single-wall galvanized tank heat exchangers.

handouts would include a workshop writeup on paper and a cd-rom containing
most of harry thomason's patents and writings and the data from nrel's blue
book and the paper "solar closets and sunspaces" by nick pine and paul bashus
and the book sunspots by steve baer and bill shurcliff's new inventions in
low-cost solar heating book and some pamphlets written by baer and shurcliff
and some design guidelines from pe norman saunders and the solar today stories
"solar heat in snow country" and "soldiers grove soldiers on" by nick pine
and drew gillett and some photos of soldiers grove and michael schofield's
1991 thesis "an economic evaluation of solar energy at soldiers grove." 

a full-day workshop would be $120, or $60 for a half-day. a full day
would be more effective, with a basic tutorial in the morning and hot
tips in the afternoon. steve baer would talk for about 2 hours about
basics and do some outdoor experiments towards the end of the morning
session.

i'm an ee by training and a registered us patent agent. i gave a similar
workshop on 10/4/03 for 20 people at the sustainable resources/engineers
without borders conference in boulder, co. steve baer is a world-famous
solar guru. rich komp is president of the maine solar energy association
and a pv author with a pchem phd and lots of solar house heating experience,
and drew gillett is an me/ce/pe with architectural training.

nick

nicholson l. pine                      system design and consulting
pine associates, ltd.                                (610) 489-1475
821 collegeville road                           fax: (610) 831-9533
collegeville, pa 19426                email: nick@ece.villanova.edu

computer simulation and modeling. high performance solar heating and
cogeneration system design. bsee, msee, sr. member, ieee. registered
us patent agent. web site: http://www.ece.villanova.edu/~nick 




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