latent heat of fusion


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Related to latent heat of fusion: Latent heat of vaporization

latent heat of fusion

The heat required to convert 1 g of a solid to a liquid at the same temperature. For example, the process of converting 1 g of ice at 0°C to water at 0°C requires 80 cal, and, until it is completed, there will be no rise in the temperature.
See also: heat
References in periodicals archive ?
If the latent heat of fusion is high, the amount of energy needed to store is less.
From Table 2 we select the heat capacity value of 0.61 Btu/lb.-[degrees]F, and latent heat of fusion value of 89.1 Btu/lb, the processing temperature of 450[degrees]F, and again a room temperature of 80[degrees]F.
There is flexibility in the choice of phase-change temperature range and latent heat of fusion. The recommended phase-change temperature range is from 25[degrees]C to 27[degrees]C (77[degrees]F to 80.6[degrees]F) and the latent heat of fusion is 23,0132 J/kg (98.9 Btu/lb).
During solidification, latent heat of fusion is released as the molten metal becomes solid.
The latent heat of fusion for LiF is 3.19 MMBTU/lb (1,050 kJ/kg) and its melting point is 1,558 [degrees] F (1,121 [degrees] K).
Table 1: Thermophsical Properties Of Palmitic Acid SI.NO Thermo Phsical Properties Of Palmitic Acid Properties Values 1 Melting temperature 55[degrees]C 2 Thermal conductivity 0.16 W/mk 3 Specifi heat 2.0 KJ/KG-K 4 Latent heat of fusion 163 KJ/KG 5 Density 942 Kg/[m.sup.3]
PCM Properties PCM Property Value Density, [rho]: kg/[m.sup.3] (lb/f[t.sup.3]) 800 (50) Thermal conductivity, k W/m-K (Btu/h*ft*[degrees]R) 0.3 (0.17) Specific heat capacity, [C.sub.p]: J/g*K (Btu/lb) 1.6 (0.69) Onset phase-change temperature upon heating/cooling 22/23 [T.sub.e]: [degrees]C ([degrees]F) (72/73) Latent heat of fusion on heating, L: kJ/kg (Btu/lb) 110 (0.43) RESULTS