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Research and optimization processes of briquetting for ecological clean bio-fuel by usage universal briquetting device.

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Georgian Technical University Research and optimization processes of briquetting for ecological clean bio-fuel by usage universal briquetting device. – PowerPoint PPT presentation

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Title: Research and optimization processes of briquetting for ecological clean bio-fuel by usage universal briquetting device.


1
Georgian Technical University
Research and optimization processes of
briquetting for ecological clean bio-fuel by
usage universal briquetting device.
PhD Student Sergo Samkharadze
2
1. Introduction
  • The large scale use of commercial energy has led
    to better quality of life however it has also
    created many problems. Perhaps the most serious
    of these are the harmful effect on the
    environment and climate changes which both have
    consequences on human health and pollution. Also
    it is now clear that the fossil fuel era of
    nonrenewable resources is gradually coming to an
    end.
  • Energy problem is very serious and the main
    objective is now to find solution to match demand
    and supply of energy sources. Therefore the need
    for conserving energy and developing alternative
    energy is a must.

3
2. Economical and ecological effect
By Georgian technical university was assessed
situation on the world - as well on Georgian
energy market and was decided to make high
quality bio-briquettes (pic.1) by using local raw
materials such are a wood sawdust, agricultural
wastes etc.
Pic. 1. Sawdust briquette.
4

Bio-briquettes are characterized with high heat
emission, longevity of burning process, low ash
content and ecological compatibility.

Briquette parameter Value
Briquette density, t/m³ 1,0 2,0
Ash content,  0,5 1,5
CO2 emission 50 times less than coal 15 times less than natural gas
Sulfur emission, 0,032
Sawdust briquette after the burning, emits into
atmosphere 50 times less CO2 than coal and 15
times less CO2 than natural gas. Sulfur emission
into the atmosphere is 0,032, which practically
doesnt contaminate atmosphere.
5
3. Energetically values.
Below we can see heat content chart for mostly
used fuels to present.
Fuel type Heat content kcal/kg
Wood (Wet) 2388
Wood (Dry) 2866
Sawdust Briquettes 4300
Black coal 4770
Natural gas 7640
6
We can easily calculate power output (1) and
burning rate (2) value for each type of fuel.
(1)
(2)
7
4. Equipment
To reach the high quality of product from us was
investigated briquetting process
parameters. Mostly bio-briquette quality is
depended from two parameters, such are moisture
and raw material particle size.
Pic. 2 Raw material particles and moisture meter
8
In Georgian Technical University experimentally
we had developed universal equipment (press)
construction for briquetting of bio-fuel.
The aim of the creating new briquetting device
was that it had worked in maximum range for these
parameters, also to be have good durability
condition against big forces, internal and
external frictions as well it should be safe for
works, easy to maintenance and etc.
Pic. 3 Slogan of the equipment
9
Pic. 4 Scheme of briquetting device
When we are making briquettes from raw material
which consist of different size particles or
moisture in range 8-14, we couldnt convinced
when we need big forces and when much less forces
for briquetting.
10
Because we was forced to create some simple test
to understand regime parameter correctness. Princi
pe of test is very simple, but it can gave us
understanding in main technological aspect - has
product high quality or not.
Pic. 5 Scheme of compression 1 - compression
plate, 2 briquette, 3 support plate
11
5. Future investigation
The big amounts of biomass that are expected to
be produced in the upcoming future will require
appropriate machinery, transport systems and
storage facilities to handle it. Different
biomass materials (or even different grades of
the same material) can have very different
properties. Thus, different handling, transport
and/or storage solutions would be required.
Advanced numerical techniques such as the finite
element method (FEM) may be used to analyse the
behaviour of biomass for storage and transport in
order to avoid problems in the industries such as
blockages or damages in the machinery and
equipments.
12
Looking forward to the future, with cooperation
FZJ exactly central technology division (ZAT), we
hope that we can grow and exchange knowledge in
advance calculation methods. Now we are trying
to simulate our products to investigate our
experimental equipment stability, safety to
increase our production and equipment
quality. Below we can see briquette examples
simulated in the Ansys
Pic. 6 Misses stress by parabolic hexahedron mesh
(HR20)
13
6. Touch points with FZJ
For us is known that in FZJ central technology
division have big experience in designing,
calculation, engineering and building different
kind of equipment. For us will be big pleasure to
cooperate with central technology division
significant by exchanging our knowledge and
experience. We will be happy to make
participation in project which will Includes task
such has our work (FEM
calculation, safety design, standardization,
etc). One of these project may be ,,Development
of a standardized method to analyze the safe
housing and its stability of fast rotors, which
is currently actual in central technology
division.
14
Last year with support Georgian technical
university we had participated to preparation
above described project. Below we can see
examples of our work in Ansys which was created
our stay in FZJ.
Pic. 7 Chopper disk crashing test
15
Thank You for Attention!
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