Uar shell and tube heat exchanger, stainless steel heat exchanger, spray heat exchangers, finned condenser, water cooled condenser, air cooled condenser, seawater condenser flooded evaporators, separators,accumulator. As shown in figure 1, in the inlet region of a horizontal condenser tube the volume flow rate of superheated vapor is usually high, and the flow pattern is singlephase vapor flow. High performance, high efficiency heat transfer surface. Shell and tube evaporators and condensers from servicefirst. Experimental and numerical model for thermal design of air. Intek has established itself as a leader in solving condenserrelated problems and improving condenser performance. In this study, the experimental results of the heat transfer coefficient of vertical microfin tube condenser have been investigated. Design and layout characteristics of steam turbine.
Enhanced finnedtube condenser design and optimization susan w. Dp design pressure dt design temperature tmin minimum temperature pt test pressure. Shelton finnedtube heat exchangers are widely used in space conditioning systems, as well. Shelton, chairman comas haynes yogendra joshi amyn teja william wepfer date approved. Steam surface condenser design based on cost optimization. A model of an airconditioning condenser and evaporator. The design and construction of surface condensers vary in the arrangement, the number of tubes,the number of water passes,the number of vapour passes, the way the cooling medium is distributed inside the condensers and the method of air removal etc. Design and performance analyses of condensing heat. Design and optimization of a condenser for hvac automobile.
This software can design, horizontal shell side condensers, horizontal tube side condensers, vertical shell side condensers, vertical tube side condensers and reflux. The heat transfer area, temperature of the air, velocity of the air, overall heat transfer coefficient etc. In condensation of a single pure vapor, provided that the pressure drop is small compared to the absolute pressure, the temperature of the condensing stream is a constant value determined by the saturation pressure. Selection and design of condensers linkedin slideshare. Each condenser can be configured with two and four passes on the water side. Shell and tube heat exchangers page 3 of 30 mnl 032a issued 29 august 08, prepared by j. The most common of these are to free up disk space or make pdf files easier to upload and download, especially because uncompressed pdf files are often very large. An introduction to condensers and auxiliary equipment for. Process fluid assignments to shell side or tube side. In this thesis two speci c con gurations versions were considered.
The type of tube ribbing has an appreciable effect on condenser volume. The optimum thermal design of a shell and tube heat exchanger involves the consideration of many interacting design parameters which can be summarized as follows. Tube length mm 51534, 61829, 724 condenser for fresh water the xssm in items description is set according to shell diameter and the chart below. Increasing condenser efficiency, both reduce the dimensions, the material usage and the investment cost of the devices. Shell and tube condenser design software calculations. Shell and tube condenser design software cnd version 1. Nuclear, fossil, and electrical generating plants, petrochemical, marine, pulp and paper, and petrochemical plants and anyone in between with a condenser or heat exchanger our versatile range of heat exchanger plugs are.
The condenser range includes different products that are optimized for hcfc and hfc refrigerants to provide the best efficiency. For condensation in the tube side by taking onehalf of the conventional pressure drop relation can be used. There are several di erent types of shell and tube heat exchangers, see more about this in section 2. This software can design, horizontal shell side condensers, horizontal tube side condensers, vertical shell side condensers, vertical tube side condensers and reflux condensers. Thermodynamic design of condensers and evaporators. Shell and tube condenser design cnd is a software that is made to demonstrate thermal analysis and design calculations required for designing shell and tube condensers. Handbook of petroleum processing in the case of the shell and tube condenser, the condensation may be produced by cooling the vapor by heat exchange with a cold process stream or by water. The floating head is typically sealed against the interior of the shell by means of packing or oring. Setting shell side and tube side pressure drop design limits. Karl ponweiser institute for thermodynamics and energy conversion vienna university of technology vienna, austria published by wseas press. Heat exchange conditions are better with knurled tubing than with tubing which has coiled ribs the efficiency of the knurled tube ribbing is greater by 27 31% and consequently, its heat transmitting surface may be reduced. Cs11 application of the rosebriggs method to shellandtube finnedtube condenser design 1998 q63 comparison of shellside condensation methods in xist and cst 2002 q71 improved xist 2. E1mnl032a design and rating of shell and tube heat.
Enhanced finnedtube condenser design and optimization approved by. Bozorgian islamic azad university, mahshahr branch abstract. Modelling and optimisation of wireandtube condenser. The present study explores the use of genetic algorithm ga to optimize the cost of steam surface condenser using four variables for optimization of design i. The analysis is extended using the above kern method with different fluid combinations such as carbondioxide on the tube side steam on. Condensers which have a coolant and a condensing vapor brought into direct contact and other types which have the coolant and a condensate stream separated by a tube wall or a solid surface. Moreover, our condensers have safety valves for protection against high levels of working pressures. The derating of condenser under abnormal ambient conditions can also be predicted. Experimental and numerical model for thermal design of air cooled condenser parameter value width w, mm 590 core depth d, mm 30 height h, mm 320 no. Alternative approaches involve the design of a utube bundle so that each tube can inpendently expand and contract as needed or by using a rear floating internal tube sheet design which allows the entire bundle as a unit to expand and contract. These condensers are engineered for marine duty where seawater flows through the tube circuit. Since 1994, intek has been the leading source of new information on condenser dynamics, which has been made possible with the rheovac instrument.
Gbhepeghea508 selection and design of condensers information contained in this publication or as otherwise supplied to users is believed to be accurate and correct at time of going to press, and is given in good faith, but it is for the user to satisfy itself of the suitability of the information for its. Pal mechanical engineering department iowa state university ames, iowa 1. If the temperature of the vapor decreases below saturation temperature near the cooling. Design calculations for condenser inlet temperature of the process stream t1 45 o c outlet temperature of the process stream t2 45 o c inlet temperature of. It is much more likely to find it in combination with compressor and the necessary piping, wiring, and form controls, factoryassembled, water cooled. This can be maintained by increasing the heat transfer coefficient in condensers. Heat transfer in refrigerator condensers and evaporators. Heat transfer in refrigerator condensers and evaporators d. Designed for air conditioning and refrigeration applications, the alfa laval condenser range function is to heat water, seawater or brine. Tube side pressure drop in case of tube side condensation.
This type of condenser is used for relatively small capacity system as heat rejection rate per unit area of the tube is less as compared to other type of condensers. Selecting appropriate materials for heat exchangers are included in the duties of designer and manufacturer engineers of heat exchangers. A model of an airconditioning condenser and evaporator with emphasis on intube enhanceinenl k. At heat exchanger products corp, we pride ourselves on manufacturing top quality silicone condenser and heat exchanger tube plugs for several industries including.
The rheovac instrument measures the mixture of water vapor and noncondensable gases in the vent line. Condenser heat exchanger is very common in process industry, condensers may be classified in two main types. This software deals with the type where the streams are separated when condensation occurs. In this paper, various alloys which are used in producing tubes of. As in the case of aircooled condenser, this type of use is the exception rather than the rule. Thermal design of condenser using ecofriendly refrigerants r404ar508b for cascade refrigeration system a d parekh, and p r tailor i 4th international conference on mechanical, production and automobile engineering icmpae20 oct.
Factors affecting selection of tubes of heat exchanger. Platefinandtube condenser performance and design for. Pedce, asme, eac, selo, dnv and other major marine. The rst was the tema e shell and tube heat exchanger with singlephase ow on the shell side.
Factors affecting selection of tubes of heat exchanger n. Shellandtube condensers can be purchased separately to be used in a system, as shown here. Shell and tube condenser design with condenser design cnd software. The methodology can be used as a design tool for the design of wire andtube condenser of a small refrigerator. The design of shell and tube heat exchanger using kern method for water and steam combination is validated by wellknown dittusboelter equation of turbulent flow inside tube. We present the results of investigations carried out during the development of steam turbine condensing systems comprising a condenser, an air removing device, and condensate and circulation systems. Get info of suppliers, manufacturers, exporters, traders of tube condenser for buying in india. Thermal design of condenser using ecofriendly refrigerants. A pdf condenser, more commonly known as a pdf compressor, refers to software used to reduce the file size of pdf files. It is found that the tube bundle layout and the characteristics of devices for removing noncondensable gases have an essential effect on the heat transfer intensity and pressure in the. Heat transfer by shell and tube heat exchangers tema. I know that q mcpt and so the outlet temperature of water can be found by tout. Find here online price details of companies selling tube condenser. The process fluid will flow through the shell side while water will flow in the tube side.
These three condensers are kept in parallel with other. Introduction a condenser is a type of heat exchanger in which vapors are transferred into liquid state by removing the latent heat with the help of a coolant such as water. In addition to that safety valve, shelltube condensers have a service valve, gas inlet and fluid outlet located over the main body. Introduction a computational model was developed for airconditioning condensers and eva porn tur with either inlube enhancement or installed smooth tube. They usually consist of a horizontal bank of finned tubes with a fan at the bottom forced draft or top induced draft of the bank, as illustrated schematically in fig. Fan shaft power or brake horsepower depending upon the fan static efficiency, one can calculate whether. Section of optimal sizes of shellandtube condensers for. Cnd is a software that is made to demonstrate thermal analysis and design calculations required for. Condenser heat exchanger thermal analysis and design. Principles of finned tube heat exchanger design for enhanced heat transfer 2nd edition by dipl. A pdf condenser can be desirable for several reasons.
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