Industrial applications of heat transfer enhancement: The modern state of the problem (a Review)

Experimental investigation on frictional multiplier of steam-water two-phase flow in internally ribbed enhanced tubes

“…As represented by equation (1), the two-phase frictional pressure drop is calculated as the total pressure drop minus the gravitational pressure drop and acceleration pressure drop. The total pressure drop is obtained from the experiment, and the gravitational pressure drop and acceleration pressure drop are calculated by the homogeneous flow model used in this study.…”

“…Because the ribbed channel can be used as a passive heat transfer enhancement tool, a series of ribbed channels are generally utilized in industrial devices such as the heat exchangers of chemical engineering systems, refrigerators, and micro-coolers of electronic systems. [1][2][3][4][5][6] Various types of ribbed tubes are widely used in boilers to delay the departure from nucleate boiling (DNB). 7,8 The internally ribbed tube is widely used in the water walls of modern supercritical boilers such as supercritical circulating fluidized bed (CFB) boilers and supercritical pressure W-shape flame boilers.…”

Energy-efficient intensifiers of laminar heat transfer

“…When a flow in the heat exchanger channels was turbulent, the heat exchange intensifiers (designed in the form of annular lateral protrusions rolled on the inner pipe wall) showed high thermohydraulic characteristics [1][2][3][4][5][6][7]. For this reason, the experimental studies [8] aimed at checking the properties of lateral protrusions in the laminar flows were undertaken.…”

Pyramidal Fin Arrays Performance Using Streamwise Anisotropic Materials by Cold Spray Additive Manufacturing

“…Indeed, heat exchangers have become common components in various engineering disciplines due to the importance and the challenges associated with thermal management. Some of the most widely used heat exchanger designs rely on fin arrays as heat transfer enhancing surfaces to be able to minimize the size and weight of such components for a given heat exchange rate ( Ref 1,4). Enhancing thermal conductance of fin arrays while decreasing the size of heat exchangers is also especially important for the aerospace and automotive industries, for which the weight and volume of components are important factors.…”

“…Research focusing on the enhancement of heat exchanger performance has become a priority in areas such as gas turbine development, electronic cooling, and power generation (Ref [1][2][3][4]. Indeed, heat exchangers have become common components in various engineering disciplines due to the importance and the challenges associated with thermal management.…”