tube 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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Choosing the Right Heat Exchanger for Food Processing
All but the most basic heat exchangers are created to a bespoke brief, designed to take into account the material/s being heated or cooled, the heating or cooling medium, the amount of product being processed, product velocity, risk of fouling and a host of other factors. However, over the years some standard design types have emerged (as well as more specific types) and understanding the ...
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Double Trouble Straight Tube Heat Exchanger
The Challenge This heat exchanger had a combination of bitumen and coke on the tube side and process steam on the shell side. The client confirmed this type of fouling typically took 8-11 days to clean. Thousand of gallons of water was used to remove this type of fouling with limited success. There was limited water capacity onsite which caused an additional logistical constraint. Over 25% of the ...
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Shell and tube heat exchangers can help avoid contamination
One of the biggest reasons the shell and tube heat exchangers market is in such a signficant state of growth right now is their use in essential medical devices. As the healthcare industry looks to rise to the challenges of a global pandemic, there’s a need for medical devices made of the highest quality materials. Shell and tube heat exchanges are entrusted in large part due to their ...
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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What Is A Heat Exchanger?
A heat exchanger is a device that transfers (or exchanges) heat from one fluid to another. There are many different names for heat exchangers because of their varied applications. When considering what you want from a heat exchanger you should think about which medium you want to heat or cool and what you are using it for What Are The Different Types Of Heat Exchanger? Finned Tube Heat ...
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The Engineering Behind Shell and Tube Heat Exchangers and Their Benefits
Shell and tube heat exchangers are used for the flow of in-line heating and cooling. The innovative design allows the movement of fluids through the tubes and exterior shell delivering changeability. The movement of fluid can be run in a counterflow, cross flow, or parallel mode. The flow of the fluids can not be reversed, so the development of dirty pockets is then eliminated during the ...
By Fluorostore
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The Stubby Bitumen - Twisted Tube Heat Exchanger - Case Study
The Challenge Twisted tube designed heat exchangers are exceptionally difficult to clean. This particular fouling process is extra challenging due to the steam in the tube side which bakes the bitumen on to the shell side faster than other designs. This heat exchagner was brought to ABSOLUTE after a previous service provider was not successful in their attempt to clean it. When previously ...
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Spiral or corrugated tube heat exchangers - which is best for wastewater treatment?
Since the first spiral heat exchanger was proposed back in the 19th century, they have become synonymous with the treatment of slurries and wastewater. However, in many situations the performance of a corrugated tube heat exchanger is equal to or better than that of a spiral design. Corrugated tube designs also provide a number of additional advantages in terms of day-to-day operation and ...
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New Juice Processing Solutions: from Concentrate to Bottle - Part 2
Pasteurisation High Temperature Short Time (HTST) pasteurisation, also known as ‘flash pasteurisation’, is the preferred technique for making premium quality juice. The HRS series of MI/MR pasteurisers uses a food-grade, multitube corrugated tube heat exchanger to speed up the heat transfer, while the corrugated tubes create extra turbulence in the juice as it flows through. This ...
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The Straight Test Straight Tube Heat Exchanger - Case Study
The Client The client is an international integrated energy company with operations in 33 countries and are operating and developing their SAGD Assets in the Athabasca oil sands region. As in all SAGD operations the bitumen is brought to the surface mixed with particulate and water. The exchangers that do the initial cooling of this mixture are regularly fouled by the bitumen and particulate. ...
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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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Studies on steam condensation with non-condensable gases in a horizontal condenser tube for advanced nuclear reactors using RELAP5
Horizontal heat exchangers are used in advanced light water nuclear reactors in their passive cooling systems, such as Residual Heat Removal System (RHRS) and Passive Containment Cooling System (PCCS). Horizontal condensation studies of steam with non-condensable gases mixtures in these heat exchangers are very important. This work presents a comparison between simulation results and experimental ...
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On-Vehicle Exhaust Gas Cooling in a Diesel
ABSTRACT A diesel emissions control system built and tested on an industrial forklift truck is described. The system utilizes a pleated media type diesel soot filter. The temperature limit of the filter material is well below the temperature of the exhaust gas. Therefore, cooling of the exhaust gas is necessary. A finned-tube heat exchanger is included in the system to cool the exhaust gas to ...
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Case Study - Aluto Langano Power Plant Rehabilitation
Aluto Langano, Ethiopia – 2007 The Aluto Langano Geothermal Pilot Plant (ALGPP) is located on the Aluto volcanic complex of the Ethiopian Rift valley, close to the eastern escarpment between Lake Langano and Lake Ziway, some 200 km southeast of Addis Ababa. The Aluto volcanic complex is a young acidic system consisting of domes, lava, and pyroclastic interbeds. The geothermal field was ...
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Exergoeconomic analysis of an olive oil refining plant
This study deals with evaluating the performance of an olive oil refinery plant installed in Izmir, Turkey, using Exergy, Cost, Energy and Mass (EXCEM) method, which is based on the real operational data and costs of the equipments. The most efficient equipment is obtained to be the shell and tube type heat exchanger with an exergy efficiency value of 85.8% at 25°C, ranging from 86.2% to 85% for ...
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Introducing AHED (Advanced Heat Exchanger Design)
AHED (Advanced Heat Exchanger Design) is a powerful design tool for the calculation of one of the most used items of process equipment: shell and tube and heat exchangers (STHE’s). STHE’s are used in widespread process industries including Chemical, Oil & Gas, Wastewater, Food, Pharmaceutical & Automotive. The design of STHE’s is fundamental for a process installation ...
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The performance and emission characteristics of a diesel engine using preheated Kusum oil and Kusum diesel blend
Rapidly depleting conventional petroleum resources have prompted research for alternative fuels. Among various possible options for internal combustion engines, fuels derived from triglycerides (vegetable oils/animal fats) are a promising substitute for diesel fuel. Vegetable oils pose some detrimental characteristics like high viscosity and low volatility compared to diesel fuel. In the present ...
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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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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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