Transportable boiler plants are widespread in the northern regions of Russian Federation and have a large stable demand various spheres life. The equipment used schemes existing outdated—they require replacement modernization. Our proposed new installation includes coil type steam ancillary designed with identified deficiencies mind. coils coaxial cylinders. scope modernized transportable plant...

Non-furnace boilers can improve the efficiency of industrial once-through boilers. However, temperature non-uniformity occurs in economizer connected vertically to boiler. Heat transfer performance is degraded by non-uniformity. To solve this problem, a corbel was installed on side wall economizer, and baffle transition duct. Consequently, although thermal boiler improved, significant still obs...

the use of solar collectors in combination with heat pipes is rapidly growing in recent years.heat pipes, as heat transfer components, have undeniable advantages in comparison with other alternatives. the most important advantage is their high rate of heat transfer at minor temperature differences. although there have been numerous studies on the heat analysis or first thermodynamic analysis of...

Sometimes the need for non-circular ducts arises in many heat transfer applications because of lower pressure drop of non-circular cross section such as square duct compared to circular tube, particularly in compact heat. But square cross section has poor heat transfer performance and it is expected that using a nanofluid as a new heat transfer media may improve the heat transfer performance of...

Integrated whole-boiler process models are useful in the design of biomass and coal-fired boilers, they can also be used to analyse different scenarios such as low load operation alternate fuel firing. Whereas CFD typically applied detail heat transfer phenomena furnaces, analysis integrated performance requires one-dimensional thermofluid network models. These incorporate zero-dimensional furn...

helical coil heat exchangers are widely used in industrial applications ranging fromcryogenic processes, air-conditioning, and nuclear reactors to waste heat recovery due totheir compact size and high heat transfer coefficient. in this kind of heat exchangers, flowand heat transfer are complicated. this paper reports a numerical investigation of theinfluence of different parameters such as coil...

an investigation has been carried out on the temperature of a biscuit on the cooling line of razavi food industries company. for thispurpose, the time variations of biscuit’s top surface temperature in traveling from oven to packing station on the conveyor packing station by conveyors has been studied. the fourier field equation for transient heat transfer is used as the basis for the determini...

In this study, by using the finite volume method, the heat transfer in a convective straight fin with temperature-dependent thermal properties and an internal heat generation under multi-boiling heat transfer modes are analyzed. In this regard, the local heat transfer coefficient is considered to vary within a power-law function of temperature. In the present study, the coexistence of all the b...

the performance of a γ-al 2 o 3 /n-decane nanofluid shell-and-tube heat exchanger in a biomass heating plant is analyzed to specify the optimum condition based on the maximum heat transfer rate and performance index for wide range of nanoparticle volume fraction (0–7%). compared with pure          n-decane, the obtained results in this research show that by using γ-al 2 o 3 /n-decane nanofluid ...