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INDIRECT PROCESS STREAM HEATING

An Indirect Heater liberates heat in a separate chamber, normally a firetube, and the heat is transferred to the process stream through a media such as water, glycol/water,steam, salt or flue gases.

The primary advantages of indirect heating are:

  • The heating media transfers heat evenly.
  • The coil inside wall temperature is lower, thus reducing the possibility of caking, scaling and plugging which is a common problem in direct heating.

TMA-Joy's Indirect heaters are offered in a wide variety of output ratings that are widely applicable to the petroleum industry, in power generation and industrial uses. Indirect Heaters operate reliably, efficiently and safely.

TMA-Joy offers four (4) types of Indirect Heaters.

  • WATER BATH HEATERS
  • STEAM BATH HEATERS
  • SALT BATH HEATERS
  • HTE (High Thermal Efficiency)

Water Bath Heaters

Water Bath heaters have a vessel filled with a transfer media of water or glycol/water mixture (see diagram). The combustion chamber (firetube) and the process coil are submerged in the media. The firetube transfers the heat released by the burner to the media which then transfers the heat to the process through the process coil. The maximum operating temperature of the Water Bath heater is 190F. TMA-Joy's standard sizes for Water Bath Heaters are available.

Water Bath Heaters

Duty. Btu/hr Absorbed Heat

Vessel Size

100,000    18"OD X 5'0"
250,000    24"OD X 7'6"
500,000    30"OD X 10'0"
750,000    36" OD X 12'0"
1,000,000     42" OD X 15'0"
1,250,000     48" OD X 15'0"
1,500,000     48" OD X 17'6"
1,750,000     60" OD X 15'0"
2,000,000     60" OD X 17'6"
2,500,000     60" OD X 20'0"
3,000,000     60" OD X 22'6"
3,500,000     72" OD X 22'6"
4,000,000     72" OD X 25' 0
4,500,000     72" OD X 30' 0
5,000,000     84" OD X 22'6"
6,000,000     84" OD X 30'0"
7,000,000     96" OD X 30'0"
8,000,000     96" OD X 30'0"
10,000,000     96" OD X 30'0"
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