Vacuum return condensate systems
Journal Article
·
· Heat., Piping Air Cond.; (United States)
OSTI ID:5942043
Examines whether replacing old vacuum pumps with standard atmospheric condensate units is justified in light of the advantages of vacuum systems. Describes a new system approach which uses a vacuum pump on the end of the return line which removes air from the line. When the system is cold and the thermostatic radiator traps are open, air is removed from the radiation and steam supply lines. With a large percentage of the air removed by the vacuum pump and an increased differential across the system, steam flow is several times faster than in a standard atmospheric return system. This allows for a much improved heat balance and a faster system startup. Vacuum return systems offer additional benefits in that condensate is returned faster, reducing surge in the boiler due to condensate holdup. Modern vacuum return units are available with separate air removal and condensate pumps. Vacuum boiler feed systems are also available for systems involved in boiler conversions. Concludes that if a system was originally designed for vacuum service, it should be properly maintained and continue to operate under vacuum.
- Research Organization:
- ITT Domestic Pump, Fluid Handling Div., Shippensburg, PA
- OSTI ID:
- 5942043
- Journal Information:
- Heat., Piping Air Cond.; (United States), Journal Name: Heat., Piping Air Cond.; (United States) Vol. 55:1; ISSN HPAOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100 -- Energy Conservation
Consumption
& Utilization-- Buildings
42 ENGINEERING
420200 -- Engineering-- Facilities
Equipment
& Techniques
420700* -- Engineering-- Vacuum Engineering-- (-1987)
AIR FLOW
BOILERS
BUILDINGS
COMPARATIVE EVALUATIONS
CONDENSATION CHAMBERS
CONDENSERS
CONTROL EQUIPMENT
EQUIPMENT
EVAPORATION
FLUID FLOW
GAS FLOW
LABORATORY EQUIPMENT
PERFORMANCE
PHASE TRANSFORMATIONS
PUMPS
STEAM CONDENSERS
STEAM GENERATION
THERMOSTATS
VACUUM EVAPORATION
VACUUM PUMPS
VACUUM SYSTEMS
VAPOR CONDENSERS
320100 -- Energy Conservation
Consumption
& Utilization-- Buildings
42 ENGINEERING
420200 -- Engineering-- Facilities
Equipment
& Techniques
420700* -- Engineering-- Vacuum Engineering-- (-1987)
AIR FLOW
BOILERS
BUILDINGS
COMPARATIVE EVALUATIONS
CONDENSATION CHAMBERS
CONDENSERS
CONTROL EQUIPMENT
EQUIPMENT
EVAPORATION
FLUID FLOW
GAS FLOW
LABORATORY EQUIPMENT
PERFORMANCE
PHASE TRANSFORMATIONS
PUMPS
STEAM CONDENSERS
STEAM GENERATION
THERMOSTATS
VACUUM EVAPORATION
VACUUM PUMPS
VACUUM SYSTEMS
VAPOR CONDENSERS