Conductive heat transfer per unit area can be calculated as q / A = 215 W/ m K / 2 10 3 m 80 o C = 86 00000 W/m 2 = 8600 kW/m 2 Conductive Heat Transfer through a Stainless Steel Pot Wall with thickness 2 mm temperature difference 80 o C Thermal conductivity for stainless steel is 17 W/ m K from the table above Conductive
ratios of thermal conductivity Keywords EICP Granite residual soil Heat transfer mechanism Steel slag Thermal conductivity 1 Introduction Geothermal energy is a potential clean and renewable heat resource to replace the traditional fossil fuels which emit the greenhouse gas contributing to the global environment degradation [1 45]
Manufacture of low thermal conductivity anorthite ceramic foam using silica fume aluminum slag and limestone Author links open overlay panel Effect of CaO/SiO 2 ratio on phase transformation and properties of anorthite based ceramics from coal fly ash and steel slag Ceram Int 46 6 2020 pp 7550 7558 View PDF View article View
The heat capacity of the steel slag samples was measured in the temperature range of 200 750 °C with values between and kJ/kg·K The thermal conductivity decreased with temperature from W/m·K at 50 °C to W/m·K at 900 °C The authors refined the characterization of Calvet including density heat capacity thermal
More recently Guotong Wang et al [48] presented a detailed study of Steel Slag Aggregate SSA on permeable concrete and its amelioration effect Jiao et al [49] verified the feasibility of adding steel slag to asphalt mixes as thermal aggregate to increase thermal conductivity for electrical thermal snow melting All these studies focused
Therefore this study optimizes the industrial refining slag of 38CrMoAl steel with a high CaO content refining slag at 1600 °C Through the steel slag reaction the high melt point inclusions in the steel are converted into liquid calcium aluminate to control the type of inclusions reduce the number and size of the nonmetallic inclusions in the steel improve the degree of
The steel slag heat storage material has the best performance when the content of pretreated steel slag is 60 wt% and the sintering temperature is 1200 °C Its compressive strength is stabilized at about 80 MPa thermal conductivity is W/ m·K and thermal density is J/g in the range of 50 1000 °C More importantly it has
Thermographic analysis was employed to explore the effect of coarse slag and slag powder on the thermal conductivity and heat distribution of mixtures during microwave heating For this purpose semi circular specimens containing steel slag with a diameter of 100 mm and a thickness of 50 mm were subjected to microwave heating
The foam concrete FC was prepared using carbonation curing with steel slag SS as the raw material The composition and moisture content of carbonated SS and Copy URL Copy DOI Preparation of a Novel Foam Concrete for the Carbonation of Steel Slag with Low Thermal Conductivity and Enhanced Co2 Capture 9 Pages Posted 21 Dec 2024 See
The thermal performance of the backfill material used in ground source heat pump systems directly affects their heat transfer efficiency To enhance the heat transfer efficiency aiming at the low heat conductivity of existing backfill materials this paper proposes a waste steel slag calcareous clay mixture as the backfill material for buried pipes
Waste heat recovery from high temperature slags represents the latest potential way to remarkably reduce the energy consumption and CO2 emissions of the steel industry
Waste glass WG and steel slag SS are industrial by products with properties that benefit sustainable concrete production This research aims to produce concrete with the highest compressive strength and lowest thermal conductivity for green buildings by using WG and SS as the cement and coarse aggregates respectively Such a combination is
Steel slag aggregate and copper slag aggregate reduced thermal conductivity of concrete by 23 % and % respectively compared to the natural aggregate sample Finally according to the experiment results and the use of Vikor statistical method it was revealed that concrete samples made of 50 % copper slag aggregate and 50 % natural aggregate
This work examined the thermal conductivity of Steel Slag Tiles SST Six samples were investigated with SS compositions ranging from 0100wt% Thermal conductivity test was conducted following standard procedure The steady state heating approach was adopted in conducting the test It was observed that the thermal conductivity of SST decreased as the
viscosity η > electrical conductivity κ and thermal conductivity k > thermal expansion coefficient α > density ρ > surface tension γ > Cp and enthalpy One of the main factors affect the performance of slag in electric arc furnace is its electrical conductivity κ 1 In addition electrical conductivity of slag plays an
Due to the large radiation and difficulties in determining the solid fraction conventional methods are not appropriate to measure the thermal conductivity of high temperature molten slag This paper presents a method to measure the thermal conductivity of molten slag above 600 °C Solidification of molten slag was implemented by using copper
Regardless of the cement type used the reduction of thermal conductivity in silico calcareous aggregate concrete specimens is nearly 50% while in steel slag specimens 60% Although the steel slag specimens show a lower thermal conductivity ± W/m·K the concrete specimens still preserve their integrity
Preparation of steel slag foam concrete and fractal model for its thermal conductivity Through comprehensive consideration of 7 d compressive strength and thermal conductivity the recommend
This improvement in the thermal conductivity of the TIM was due to the stable and high thermal conductivity 8 16 W m −1 K −1 of CaO which is a ceramic compound The improvement in thermal conductivity due to CaO replacement was greater in the segregated structure than in the random structure
