Matching renewable energy systems to village-level energy needs Page: 56 of 71
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Biogas
Generatorsat
01
-51
E
3 Biomass
5 Direct
Combustion Qat
0
O1
A
rnCo
-E
3a
U CSmall
Scale
Hydro-5
a
0SE
0 c
CC
W'C
iA. Discrimination
Criteria:
Heat from Heat
methane gas With energy Shall power
1. Type of Energy with energy transformation- Yes N/A Wh gy No No Yes
transformation: electricity YrnrmyNrNn-
electricity (steam turbine) tre at
shalt power shalt power
100*-500*C direct
2. Temperature 1ho-4OO-C Yes Yen N/A eat. lower temper- Yes N/A N/A 25-400C
p 0 d0C VyYsNAature not air tot rr / utrheat N/A N/A Yes
drying
3. Spatial Good for gas Poor for heat Good for elec-
through pipe- Yes Yes Yes but could have Yes N/A N/A tricity. can Yes Yes Yes
Distribution lnes several stove transform to
sites heat at each site
Conclusion on
Discrimination Yes Yes Yes N/A No No Yes
Criteria
B. Site-Specific
Temporal & Cli-
matic Criteria:
Stream (low may
4. Seasonality Supply of waste Supply of biomass vary unless
may vary may vary water storage
or pump
5. Time of Day Anytime if waste Yes Yes I Anytime Yes Anytime Yes
is available
3-24 hours/day 24 hours it 24 hours/day it
6. Duration depending on biomass fuel is Yes Stream 'low is yes
supply of waste available constant or
waler storage
.Sensitivity to May be inter- Minimal inter- May be inter-
7. s eruption it adequate erupted it water
rapled it waste Yes c:A
Interruption supply dectasesI is available supply not
tsppy decreases and tea to stove constant
Conclusion on
the above criteria
C. Site-Specific
Social/Cultural/
Environmental
Criteria:
8. Usage by
Type of Person
9. Historical/Social/ Some religions Similar to drying Electrical device
Religious may find use methods by open must be socially
unacceptable or burning, although acceptable and
Influences tod drying less smoke flanor easy to operate
10. Traditional
Energy Sources
usea
Fertilizer by- Less wood fuel Orying is laster.
11. Environmental product used because especially in areas
Costs & Benefitg Orying occurs with stove is more with moisture, slow
less spvuaye Ieier iiin ryn, mnt inn"
spoilage12. Cost
ConsiderationsConclusions: must
be made on a
site by site basis$4.825 tor 5.000
fti/day plus
cost o gas-fueled
drop drying dade515-35/unit: stoves
need to be cheap
to replace open
OulAg met1d1-kW Hopps unit:
54.525 plus cost
of devices for
heat tianiniinig
and drying41
U
A
S
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Ashworth, J.H. & Neuendorffer, J.W. Matching renewable energy systems to village-level energy needs, report, June 1, 1980; Golden, Colorado. (https://digital.library.unt.edu/ark:/67531/metadc1054018/m1/56/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.