try cocks, water level control, ASME-rated safety relief valve, surface
blowoff valve, bottom blowdown valves, and bottom dump valves. The shell
shall be insulated as required by the paragraph "INSULATION" and the
insulation shall be covered by lagging.
2.2.6
Heat Recovery Section for Gas Turbine
The unit shall consist of a [fire tube] [water tube or water wall] exhaust
boiler equipped with an exhaust gas bypass. Unit shall be specifically
designed for the specified installation and shall be a complete package
with thermal insulation, controls, accessories, and base. The insulation
shall be in accordance with the paragraph "INSULATION." If heat recovery
section does not meet the turbine exhaust sound levels specified, it shall
be supplied with supplementary exhaust silencer to meet specification
requirements for both on-stream and bypass conditions.
2.2.7
Steam Separator Unit
The unit shall be a combination flash tank and steam separator unit of
sufficient size for the engine cooling and waste heat recovery system when
engine is operated at 110 percent load in an ambient temperature of [40]
[_____] degrees C [105] [_____] degrees F at [_____] m feet altitude. The
unit shall be complete with low-water alarm switch, low-level cutout switch
(set at a level lower than the low-water alarm switch), pressure gauge,
safety valve, gauge glass and cocks, vent valve, water-level control,
high-water-level alarm, condensate-motor control, and blowdown connection.
Controls shall be so positioned that coolant level shall be visible in
gauge glass at all times. The vessel shall be constructed and certified in
accordance with the ASME requirements and shall be hydrostatically tested
conforming to ASME requirements. Steam at 105 kPa 15 psig from this
separator shall be used for [space heating] [and] [absorption cooling]
[_____]. The unit shall be insulated as required by paragraph "INSULATION."
2.2.8
Condensate Pumps and Receiver
Condensate unit shall have duplex pumps and receiver and shall be
skid-mounted. Each pump shall be capable of full capacity at 120 percent
full steam rate when all of the heat is wasted under 110 percent engine
load in an ambient temperature of [40] [_____] degrees C [105] [_____]
degrees F. An alternator shall be provided for automatically switching the
pumps under response from the liquid level control of the steam generator
units each time an ON-OFF cycle is completed. Pumps shall be electric
motor-driven type with stainless steel shafts and bronze impellers for
operation with condensate at 95 degrees C 200 degrees F. Means shall be
provided to control pump operation to maintain condensate level between
high and low visible levels indicated on the glass gauge of the receiver.
The receiver shall be sized to hold at least enough condensate for 15
minutes of operation without raw water makeup and shall be complete with
skid mounting, gauge glass, float-type makeup water valve with emergency
manual valve, air vent, high-and low-level controlled pump switch,
low-level alarm, and drain connection. Air vent shall be suitable for use
with coolant selected.
2.2.9
Load Control Condenser
Each condenser
unit shall have a capacity to dissipate the heat rejected by
the engine and
its components at 110 percent full-rated load under
temperature of
[_____] degrees C degrees F and at [_____] m feet elevation
from above sea
level. The maximum coolant temperatures leaving the engine
SECTION 15845A
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