If the feed-throat pressure development exceeds the discharge pressure
, the output will exceed the drag flow, resulting in further throughput gains.
These pumps produce a constant flow at a steady speed, regardless of the discharge pressure
Being a true positive-displacement reciprocating pump, this offers excellent energy efficiency, consistent flow rate unaffected by discharge pressure
, and field-proven reliability.
Solar's compressors continue to gain increased acceptance at higher discharge pressure
The control strategy for refrigeration systems is also evaluated for opportunities to reduce energy consumption through condenser fan and pump cycling, compressor staging, reduced discharge pressure
operation, defrost timing and methods, use of variable frequency drives and adjustments for seasonal operating conditions.
Problems may arise from the compressor spending a certain amount of time recycling gas, until sufficient discharge pressure
is produced to open the discharge check valve (Figure 3), and gas begins flowing into the pipeline.
The compressor discharge pressure
was regulated via a hand-operated needle valve (DV).
Available in three sizes - B20, B32 and B40 - with maximum capacities of 15, 34 and 70 gpm at a maximum discharge pressure
of 100 psi, the pumps are EHEDG certified and conform to ATEX regulations that are laid out in the 94/9/EG directive.
One of the energy saving features of the new plant is the use of variable speed fans on its condensers, which not only saves fan energy as the fans slow down, but at the same time, will provide smoother discharge pressure
by modulating the fan speed as the load changes.
Associated sour gas will be injected back into the oil reservoir at pressures up to 760 bar, the highest discharge pressure
ever developed for gas injection.
Temperatures can reach 662[degrees]F (350[degrees]C), with discharge pressure
reaching 70 bar, (1000 psi) for cast steel, and 120 bar (1700 psi) for corrosion-resistant steel.
Standard in nickel aluminum bronze, as well as 316 stainless and 2205 duplex stainless, CodeLine reciprocating pumps offer 90 percent minimum efficiency at any discharge pressure
, thereby lowering the per-gallon cost of process water.