In present work, comparison of three different tube bundles for particular heat exchanger is proposed. Three types are smooth, micro finned and corrugated tubes. Heat exchanger will be designed with smooth tube bundle and simulated. Micro fin and corrugation over tube is applied separately for same heat exchanger in feasible size and simulated for performance. Besides, comparison is done with h...

The results of experimental studies free-convective heat transfer single-, double- and four-row bundles finned tubes without with an exhaust shaft are presented. It is shown that the inter-tube spacing significantly affects energy efficiency bundle. optimum 61 mm for single-row, about 70 double-row, over bundles. With increase number rows in bundle specific capacity increases, but rate its decr...

A computational and analytical study of the energy efficiency configuration finned tubes in heat exchange section an air cooler is carried out by Antuf’ev method for different types heat-exchange cooler. In investigation range variation speed compressed frontal part was 2.87–25.66 m/s tube finning coefficient, 5.1–27.4 (which corresponds to parameters coolers employed). consumption power N0 fan...

This paper is devoted to the presentation of an advanced model for the heat conduction processes within a finned tube bundle, typically found in air-cooled evaporators and condensers. As a result of the computational effort needed to simulate the desired fin-and-tube local unsteadiness, some actions have been undertaken in order to obtain reasonable simulation time consumption. A specific cutti...

In this paper, first the governing parameters characterizing low-finned tubes are reviewed. Second, the more important of the available performance correlations are compared with the available experimental data. The most reliable one can be employed to develop a pressure drop relationship, which has already been used in an algorithm for exchanger sizing. Also a means for the identification of a...

The experimental study of the heat flow intensity a single-row horizontal air-cooled tubular bundle exchanger with spiral aluminum rolling fins at low Reynolds numbers (Re < 2000) is performed. geometrical dimensions bimetallic finned tubes bundle, following: outer diameter d = 56.0 mm; tube base 0 26.8 fin height h 14.6 pitch s 2.5 average thickness Δ 0.5 coefficient φ 19.3; transfer length...

Natural convection heat transfer from a tube bundle in the indirect water bath heaters is investigated. A computer-code is used for the solution of the governing equations of mass, momentum and energy transfer based on the SIMPLE-C algorithm. Simulations are carried out for the gas pressure station heater of Kermanshah city with various tube bundle arrangements. In order to validate the numeric...

natural convection heat transfer from a tube bundle in the indirect water bath heaters is investigated. a computer-code is used for the solution of the governing equations of mass, momentum and energy transfer based on the simple-c algorithm. simulations are carried out for the gas pressure station heater of kermanshah city with various tube bundle arrangements. in order to validate the numeric...

Finned-tube heat exchangers are predominantly used in space conditioning systems, as well as other applications requiring heat exchange between two fluids. The design of finned-tube heat exchangers requires the selection of over a dozen design parameters by the designer such as tube pitch, tube diameter, tube thickness, etc... Finned-tube heat exchangers are common devices; however, their perfo...

This paper presents the detailed design and analysis of an asymmetric fin tube condenser. And the heat transfer performance of the asymmetric fin tube condenser is simulated with the fluent software. Based on the simulation results, an optimal model of the asymmetric-finned tube condenser is designed. The actual model is experimentally studied on air conditioners and contrasted with the symmetr...