In the field of construction, securing the early strength of concrete (on the first and third days of aging) has been an important problem in deciding the mold release time (i.e., shortening the construction time period). Therefore, the problem of reduced compressive strength in the early aging stage caused by mixing granulated blast furnace slag (GBFS) with concrete must certainly be resolved....

This work compares the transient behaviors of flue gas sides large-scale bubbling and circulating fluidized bed (BFB CFB, respectively) boilers. For this purpose, a dynamic model in-furnace side combustors presented validated by authors in former is used to simulate two industrial units. The results show that for load changes heat transfer waterwalls stabilizes more rapidly BFB Differences stab...

Silicon is produced in submerged arc furnaces which are heated by electric currents passing through the furnace. It important to understand distribution of heating within furnace order accurately model silicon production process, yet many existing studies neglect aspects this current flow. In present paper, we formulate a that couples electrical thermal, material flow and chemical processes We ...

The operation and maintenance of nuclear power plants, the nuclear fuel cycle in general, research laboratories and pharmaceutical, medical and industrial facilities generate large amounts of low-level radioactive wastes which, along with the historical radioactive wastes from past nuclear activities, need to be treated to minimise the volume to be disposed of. Plasma technology offers a very e...

A coupled reactor/furnace simulation has been conducted for a 100 kt/a SL-II naphtha cracking furnace containing both long-flame and radiation burners. The computational fluid dynamics approach was used to simulate the flow, combustion and radiative heat transfer in the furnace. The software packages COILSIM1D and SimCO were used to account for the cracking process in the reactor coils. The sim...

a mathematical model of a continuous reheating furnace has been developed to identify the design and operating parameters that significantly affect furnace performance. in this study, the furnace is modeled 3 dimensionally and themonte carlomethod is used to find the overall absorption factor. the overall absorption factor is then used to calculate the energy balance for furnace walls, the gas,...

In recent years, the construction industry has struggled with a variety of issues such as material availability, supply channel management, and increasing cost materials. These have encouraged search for replacements substitutes existing Blast Furnace Slag is used in mineral amendment or aggregate. Their use Earth Construction, due to their post-industrial origin, may be associated increased le...