heat exchanger Articles
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Design and analysis of concentric tube heat exchanger using entropy generation minimisation
In a heat exchanger, the amount of heat that is transferred at relatively high temperature is of greater importance than heat balance. This would ensure the conservation of exergy. The entropy generation is the only quantity that quantifies the loss in the exergy. In the present study the entropy generation in concentric tube heat exchanger, and the effect of geometry and working parameters on ...
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Thermoeconomic design-optimisation of crossflow plate-fin heat exchanger using Genetic Algorithm
A Genetic Algorithm (GA) based optimisation technique has been developed for thermoeconomic optimisation of crossflow plate-fin heat exchangers using offset strip fins. The algorithm takes care of a large number of continuous, as well as discrete variables. The optimisation program aims at minimising the Total Thermoeconomic Cost (TTEC) for a specified heat duty, under given space restrictions. ...
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Second law analysis of a crossflow heat exchanger equipped with constructal distributor/collector
In the present study, the experimental results of second law analysis on the heat transfer and hydraulic characteristics of a mini crossflow heat exchanger equipped with constructal distributor/collector are presented. In the experiments, hot and cold water are used as working fluids. Tests are performed for various "distributor-heat-exchanger-collector" configurations at channel Reynolds numbers ...
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Increase the pressure with annular space heat exchangers
Annular space heat exchangers, such as the HRS AS Series, work by passing the product through the gap between the inner and outer tubes (the annular space), which makes them suitable for thick, highly viscous products such as fruit purees, thick sauces, honey and syrups. The advantage of such a design is that it ensures even heating or cooling of the product, while the use of HRS corrugated tube ...
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See how the HRS R Series saves valuable space, time and energy
HRS Heat Exchangers’ Cameron Creech, General Manager for HRS North America, explains why the HRS R Series is a better option than traditional single tube scraped surface heat exchangers. The R Series Scraped Surface Heat Exchangers have been designed to maximise energy and product recovery, reduce footprint and be cost effective to maintain. For highly viscous products, the RHD Series is a ...
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Improving Heat Transfer in Heat Exchangers
Untitled Document Static mixer elements can reduce film buildup on the inside walls of your heat exchanger and improve heat transfer, allowing you to reduce heat exchanger size and space requirements. To view the full article please click here (Word Doc.- 87.5 KB) ...
By Nordson EFD
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Advantages of plate heat exchanger
1. The heat transfer coefficient of plate heat exchanger is higher than that of other heat exchangers. When designing plate heat exchangers, some special corrugates are designed on the plates. Never underestimate the role of these corrugates. They can make the fluid flow with strong turbulence at very low flow rates. The self-purification effect of turbulence can prevent fouling. The heat ...
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Why are fluoropolymers are used for the construction of industrial heat exchangers?
Right now, we are in the middle of summer, so heat is probably on your mind. Heat exchangers exist in all sorts of applications. Your heating system might use a metal heat exchanger to transfer heat. This could mean it’s made of carbon and stainless steel, copper, aluminum, or another metal. Low temperature plastic may also be used in the construction of the heat exchanger in a heating ...
By Fluorostore
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Introduction to Shell and Plate Heat Exchanger
Shell and plate heat exchangers are heat exchangers with plate and tube as heat transfer elements, also known as sheet heat exchangers. Shell and plate heat exchangers are mainly composed of tube bundles and shell parts (figure). The contact points of cold-formed pairs of strips are tightly welded together to form a sheet tube with multiple flat runners. Many plates and tubes with different ...
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Optimum distribution of heat exchanger inventory and optimum thermal capacitance rate matching for power optimisation of a regenerated closed Brayton cycle
The power output of the cycle is taken as objective for performance analysis and optimisation of an irreversible regenerated closed Brayton cycle coupled to variable-temperature heat reservoirs. The analytical formulae about the relations between power output and pressure ratio are derived with the heat resistance losses in three heat exchangers, the irreversible losses in the compressor and ...
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HRS multipass RMP heat exchanger improves heat transfer for viscous materials
The HRS R Series of scraped surface heat exchangers is ideal for multitube scraped surface installations thanks to its helical scraper system which provides the ability to provide a large surface area with a very small footprint. We have now launched a new multipass version – the RMP Series – which further improves heat transfer for challenging viscous materials. Based on the R3 ...
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Corrugations best for efficiency in tubular heat exchangers
There are many different types of tubular heat exchanger on the market, such as annular space, double tube and multitube, as well as those with different geometries including the use of internal fins, dimples and corrugations. We have written several articles explaining why corrugated tubes are our preferred design option, but it is worth ...
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Comparative study of the effect of fouling on heat exchangers performance based on the first and second laws of thermodynamics
An extensive investigation of the effect of fouling on heat exchangers performance has been carried out based on the first and second laws of thermodynamics. Non-dimensional fouling thermal resistance is firstly defined, and five typical criteria in terms of heat transfer units number, heat transfer effectiveness, exergy transfer units number, exergy transfer effectiveness and non-dimensional ...
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Removable Plate Heat Exchanger
The removable plate heat exchanger is mainly composed of heat transfer plate, sealing gasket, pressure plate at both ends, clamping bolt, bracket, flange or bushing, and ground foot. Heat transfer plate is the main component of heat exchanger. Generally, corrugated heat transfer plate is made of herringbone. According to the different fluid medium, the material of heat transfer plate is ...
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Second law analysis of a multiport serpentine Micro–Channel Slab Heat Exchanger
Second law analysis is recognised as an effective tool to determine the thermodynamic performance of many systems. In the present work, it is used for a steady–state multiport serpentine slab cross–flow Micro–Channel Heat Exchanger (MCHX) to analyse its thermodynamic performance. Micro–scale devices have been widely used due to advancements in micro–scale fabricating technologies. This type of ...
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Heat Exchanger
Steam boiler, Wood Fired Steam boiler, Wood Fired Thermic Fluid Heater, boiler India, Industrial boiler, ibr steam boiler, Coal Fired Steam boiler, Hot Air Generator, Pressure Vessels, Gas Fired Steam boiler-Ambica Boilers, Ahmedabad, Gujarat, ...
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Semi-Welding Plate Heat Exchanger
Semi-welded laser interchangeable plate heat exchanger allows the use of special media on one side of the laser welding, and the other side using gaskets. This allows certain special requirements where both media are unable to use the same type. Specifications Maximum capacity: 600m³ / h Maximum design pressure: 25bar Maximum design temperature: 150 ℃ Plate material: 304, 316, 316L, ...
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Introduction to Plate Heat Exchanger
Working principle of plate heat exchanger Plate heat exchanger is composed of a group of metal corrugated plates with openings, which form a channel for liquid flow. Heat will be transferred between the two liquids.The corrugated plates are assembled between a fixed plate and a movable compaction plate and are compacted by clamping bolts. These plates are equipped with sealing gaskets, which ...
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316L vs. 439 Stainless Steel for use in Condensing Boilers
There are many choices available when it comes to heat exchanger material in a condensing boiler. In today’s current offering of commercial condensing boilers, you can find copper, carbon steel, 304 stainless, 316L stainless, 439 stainless, duplex steel alloys, and aluminum. A boiler manufacturer evaluates a number of different factors when selecting their material for the heat exchanger. ...
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Entropy generation minimisation analysis of cross-flow heat exchangers used in indirect evaporative air conditioners
In this paper, entropy generation in heat exchangers used in Indirect Evaporative Coolers (IDECs) is studied. First, expressions for the rate of entropy generation in tube-type and plate-type cross-flow heat exchangers used as IDECs are obtained. Then, by introducing appropriate geometric constraints and employing thermohydraulic design equations, the variation of the rate of entropy generation ...
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