required for testing are accurate, that acceptable methods were used, and
that the equipment satisfactorily performed in accordance with the
requirements.
1.5.4
Records
purchase information, submit data or specification sheets for each device
furnished by this contract. These sheets shall be the actual sheets used
for ordering and fabrication, and shall include the final vendor's own
sheets, where applicable, in addition to the Contractor's purchase order
forms. Provide an index for the data sheets. These sheets shall include
technical data for the devices including tag number, manufacturer, complete
catalog or model number, scale range, complete electrical information
including current voltage ratings, contact action (SPST, DPDT, etc.), data
or specification sheet number, scheduling information showing dates for
ordering, fabrication, shipment, etc., manufacturer's data for tubing,
fittings, valves and accessories, and material.
1.5.5
Model Test
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NOTE: Contracting Officer shall have authority to
select an experienced modeller from list supplied by
contractor.
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NOTE: Test model system scale shall meet good
engineering practices. In no case shall scale be
less than 1:100 1/8 scale.
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NOTE: Dust used for testing shall be sifted,
bleached wheat flour or approved vendor selection.
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Conduct a three-dimensional model study as defined in ICAC EP-7 to verify
air flow design of the spray dryer sulfur dioxide absorbers, ductwork,
fabric filter baghouse, and inlet transition to stack and to determine the
flow distribution and requirements for distribution devices to provide
adequate operating conditions in all of the equipment. The model study
shall be used by the Contractor to determine flow distribution and pressure
drop through out the system. Make necessary modifications to the model to
minimize pressure drop in ductwork. The scope of the model study shall
begin at the [economizer][air heater] outlets and end in the inlet
transition to the stack. Model shall represent the complete system, as
specified, reduced to not less than 1:100 1/8 scale. Test model shall have
dimensional tolerance of plus or minus 1 1/2 mm 1/16 inch. Dynamic and
geometric similitude shall be observed in all phases of the model study.
Flow conditions in the spray dryer sulfur dioxide absorbers, fabric filter
baghouse, ductwork, and inlet transition to the stack shall be tested and
the results submitted to the Contracting Officer. Flow and dust
distribution tests shall be performed at 30 percent, 50 percent, 75
percent, 100 percent, and 125 percent of maximum continuous flow rating.
The Contractor shall notify the Contracting Officer no less than 15 working
days before the tests are scheduled to be made so that Contracting Officer
may witness test. Dust used for testing shall be [_____].
SECTION 15864N
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