Numerical analysis of inner heating tube position for improving solid-phase transition in a shell-and-tube heat accumulator

• Latent heat thermal storage (LHTS) system is vital to reduce environment pollution. In the shell-and-tube heat accumulator, the position of the inner heating tube plays a vital role in the thermal storage. To analyze the effect of the inner tube position on the phase transition, a two-dimensional numerical model is developed. The structure has the minimum full melting time of 3480 s when the inner tube is 12 mm (L = 12 mm) from the center. Compared with L = 0 mm, the full melting time at L = 12 mm can be reduced by 13.4%. 

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Annan materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Other Materials Engineering (hsv//eng)

Keyword

Eccentricity

Metal foam

Numerical simulation

Phase change materials

Thermal energy storage

Heat storage

Melting

Metal foams

Metals

Numerical models

Storage (materials)

Tubes (components)

Heat accumulator

Heating tubes

Inner tubes

Latent heat thermal storage

Melting time

Shell-and-tube

Solid phase transition

Publication and Content Type

ref (subject category)

art (subject category)