installed evaporator heating surface is 151,000 sq. ft. Installed
a new Alfa Laval wide gap plate heat exchanger model MA30-SFM
with 169 plates 316S and 2761 sq. ft. of heating surface in
2003. It is operated with exhaust steam. The juice velocity
is about 2.5 ft. per second and it has a heat transfer coefficient
of 600 BTU/ft²/h/°F.
A new 25,000 sq. ft. Nadler pre-evaporator was added in 1988.
The body is 18' in diameter with 7,250 1-3/4" x 7'-6'-1/2"
copper tubes x 16 bwg and 1-1/4" steel tube sheets. New
stainless steel tube sheets and bottom, along with new copper
tubes, were installed in 2002.
A new 30,000 sq. ft. J&L pre-evaporator was installed
in 1996. Its body is 20' in diameter, with 8,800 1-3/4"
x 7'6-1/2" copper tubes x 16 bwg and 304 stainless steel
tube sheets (3/4") and bottom.
two pre-evaporators supply vapors to the juice heaters, evaporators
A new 13'-diameter, 30,000 sq. ft. J & L triple-effect
evaporator was added in 1992. The first body has 16 bwg, 1-3/4"
x 7'-6-1/2" copper tubes and 304 stainless steel tube
sheets and bottom. The second & third bodies have 3,700
1-3/4" x 72" copper tubes and 1-1/4" steel
tube sheets. These evaporators are served with a 90"
counter-current barometric condenser and a two-stage steam
ejector. The evaporators are equipped with automatic level,
brix and vacuum controls.
A new 13'-diameter, 37,500 sq. ft. Nadler triple-effect evaporator
was installed in 1978. Each body is equipped with 3,700 copper
tubes - 16 bwg, 1-3/4" outer diameter, 7'-6-1/2"
long - and 304 stainless steel tube sheets and bottom. All
bodies have all-stainless-steel tube sheets and bottoms, with
new tubes installed in 1995, 1996 and 1997. These evaporators
are served by a 96"-diameter counter-current barometric
condenser and a Schutte & Koerting two-stage steam ejector.
Evaporator is equipped with automatic level, brix and vacuum
Cora Texas also has a 1963 Honolulu Iron Works Company 10'-diameter
triple effect evaporator, all-steel construction with copper
tubes. All bodies were retubed in 2000 with stainless steel
tube sheets and bottoms. All bodies have 2,668 copper tubes
- 1-1/2" outer diameter by 7'6". Total heating surface
is about 23,000 sq. ft. Evaporator fitted with automatic level
and density controls. These evaporators are served by a 60"
counter-current barometer condenser and Schutte & Koerting
two-stage steam ejector. A 15,000-gal. clarified juice tank
to feed the evaporators was installed in 1975.