heat pipe based heat exchangers for oil field applications n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Heat pipe based heat exchangers for oil field applications PowerPoint Presentation
Download Presentation
Heat pipe based heat exchangers for oil field applications

Loading in 2 Seconds...

play fullscreen
1 / 10

Heat pipe based heat exchangers for oil field applications - PowerPoint PPT Presentation


  • 179 Views
  • Uploaded on

Heat pipe based heat exchangers for oil field applications. Concept 1 – Independent Heat Pipe Concept 2 – Multi Tubular Heat Pipe 2.1 Vertical Concept 2.2 Horizontal Concept Concept 3 – New Concept for lagoon oil treatment.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Heat pipe based heat exchangers for oil field applications' - hiroko


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
heat pipe based heat exchangers for oil field applications

Heat pipe basedheat exchangersfor oil field applications

Concept 1 – Independent Heat Pipe

Concept 2 – Multi Tubular Heat Pipe

2.1 Vertical Concept

2.2 Horizontal Concept

Concept 3 – New Concept for lagoon oil treatment

Dr. DumitruFetcu

More details: http://www.transterm.ro/

slide2

The independent heat pipe preheater for crude oil in tanks is made of a bundle of heat pipes placed in two separate jackets. The bundle of heat pipes is separated in two sections by special plates in which the heat pipes are fitted using different methods. One section is in the heating fluid which passes between a jacket and the heat pipes releasing the required heat rate. The other section is also placed in a jacket but this one is opened at one end. The oil enters the space between the bundle of heat pipes and leaves the jacket at the desired temperature. The independent heat pipe preheater is a radical new approach to heating oil stored in tanks in that the heat pipes are used to effect the heat transfer from heating fluid to oil.

This culminates in several distinct advantages.

It is no need to preheat the entire tank. Only the amount of oil that passes through the heat pipes is preheated at the desired temperature, the rest of the tank remaining at the ambient temperature.

The cross contamination is totally eliminated. The heating fluid and the oil are completely separated and impossible to mix each other in the case of heat pipes corrosion.

Every heat pipe acts as an independent heat exchanger and the unit is not dramatically affected when one heat pipe or more are damaged as a result of corrosion.

The length and the number of heat pipes can be varied so that the design of the unit could have an infinite variability to suit all the specific needs.

1. Independent Heat Pipe Preheater

slide3

Main features

Heat pipes: 12 pieces; carbon steel Ø51x3.5 mm; Vaporization length (in steam): 1,340 mm; Condensation length (in oil): 4,730 mm

Jacket for steam circulation: carbon steel pipe Ø324x8 mm; length: 1,310 mm

Jacket for oil circulation: carbon steel pipe Ø324x8 mm; length: 3,500 mm

Heating fluid: saturated steam, 6 bar G

Oil outlet temperature: 55 … 75 ⁰C

Heat exchanger duty: 115 … 175 Kw

Independent heat pipe preheater

for a 350 m3 oil tank

slide4

Main features

Heat pipes: 32 pieces; carbon steel Ø51x3.5 mm; Vaporization length (in hot water): 2,450 mm; Condensation length (in crude oil): 5,700 mm

Jacket for hot water circulation: carbon steel pipe Ø510x8 mm; length: 2,500 mm

Jacket for oil circulation: carbon steel pipe Ø510x8 mm; length: 5,000 mm

Heating fluid: hot water 95 … 115 ⁰C

Oil outlet temperature: 40 … 60 ⁰C

Heat exchanger duty: 370 … 450 Kw

Independent heat pipe preheater

for a 20m3 crude oil tank

slide5

Independent heat pipe preheater for a 20m3 crude oil tank

The bundle of heat pipes before installing into jackets

slide7

The Multi Tubular Heat Pipe® - Vertical Concept is made mainly of two bundles of tubes. One bundle is placed on the heat releasing fluid side (usually steam) that passes between the jacket and the tubes releasing the required heat rate. The other bundle is placed also in a jacket on the heat absorbing fluid side (usually oil) that passes between the jacket and the tubes absorbing the required heat rate.

When the vaporization section of the Multi Tubular Heat Pipe® is heated the working fluid turns to vapor absorbing the latent heat from the heat releasing fluid. The hot vapor flows up through the central tube and down through the bundle of tubes where it condenses and gives out the latent heat. The condensate then flows back through the external special tube to the vaporization section. Since the latent heat of evaporation is usually very large, considerable quantities of heat can be transported with a very small temperature difference from the heat releasing fluid to the heat absorbing fluid.

The Multi Tubular Heat Pipe® is a completely passive device as well as the conventional heat pipe. It is not restricted to a fixed operating temperature but adjusts its working temperature according to the heat load and the sink condition.

The Multi Tubular Heat Pipe® - Vertical Concept is designed mainly for process applications in crude oil industry or for final heating of the heavy fuel oil at burners in power stations.

2. Multi Tubular Heat Pipe Preheater

Vertical Concept

slide8

Main features

Heavy fuel oil properties. Mass rate: 25,000 Kg/h. Inlet temperature: 60 ⁰C. Outlet temperature: 60 ⁰C. Pressure: 40 barG.

Heating fluid properties. Superheated steam. Mass rate: 2,800 Kg/h. Pressure: 16 barG. Temperature: 300 ⁰C.

Vaporization section specs. Bundle of carbon steel tubes Ø38x3.5 mm. Number of tubes: 113. Length of tubes: 1,100 mm. Jacket: Ø840x20 mm

Condensation section specs. Bundle of carbon steel tubes Ø38x3.5 mm. Central tube: Ø218x7 mm. Number of tubes: 108. Length of tubes: 2,500 mm. Jacket: Ø840x20 mm

Heat exchanger duty: 1,125 Kw

Multi Tubular Heat Pipe Preheater - Vertical Concept

Heavy Fuel Oil Preheater for a Power Station

slide10

New Concept

for Lagoon Oil Treatment