BATH HEATING SYSTEM

Bath Heater is an indirect heating solution where tube bundles containing flowing process fluids such as natural gas or crude oil are heated through submergence in a heated medium.

 

With DFINITI’s extensive experience and expertise in thermal engineering, we design, fabricate and supply complete Bath Heating Systems.
A complete system comprises:

  • Tube Bundle
  • Expansion Tank
  • Control Panel and/or Burner Management System
  • Skid Structure
  • Heat Exchange Tank
  • Heater (electric or fired)
  • Temperature Sensors and Other Instruments

OUR ENGINEERING CAPABILITIES

  • Sizing of tube bundle
  • Tank capacity calculation
  • Control System and other E&I scope
  • Heater design and sizing
  • Heat exchange simulation using third party software such as ASPEN or HTRI
PRODUCT FEATURES
  • Isolates process from direct heat source
  • Heat source can be through electric or fired burner
  • A safer operation with indirect heating
  • Bath medium can be in the form of Water, Water + Glycol, Thermal Oil or Molten Salt
  • Ideal for high pressure applications with lower cost as compared to direct heating


Whilst operating temperatures are typically lower than that of direct heating, materials of construction in a Bath Heating System are often less stringent when compared to direct heating equipment. The cost saving can be significant especially in high pressure applications (above 250 barg) and when exotic materials are required on wetted parts.

APPLICATIONS

Due to large footprint, a Bath Heating System is typically used in onshore applications as follows:

  • Fuel Gas for dew point control
  • Gasifying for cryogenic processes
  • Viscosity reduction for oils and other mediums
  • Gas transmission line/pressure reduction station on Joule-Thomson effect
SPECIFICATIONS
 ELECTRIC TYPEFIRED TYPE
(NATURAL OR FORCED DRAFT BURNER)
SOURCEElectricityFuel gas, Oil, Dual fuel
CAPACITYTypically below 1000kWTypically 1000kW ~10MW
BATH MEDIUMWater (<90°C)
Water + Glycol (80 – 98°C)
Thermal Oil (<240°C)
Molten Salt (<400°C)
DESIGN STANDARDAPI 12K, ASME Code
(Electric Heater and Control Panel can be supplied with
ATEX/IECEx certifications for explosive environment)
DESIGN TEMPERATURE
AND PRESSURE
As per project specification
CONTROL SYSTEMThyristor or ContactorBMS

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