Showing results for: heat exchanger tube Articles
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Best Practices for Eddy Current Testing of Heat Exchanger Tubes
Eddy current testing (ECT) is one of the best methods of measuring wall thickness and circumferential cracks when testing heat exchanger tubes. But it takes quality instrumentation to capture defects accurately. Heat exchanger tubes are subject to heavy stress due to high-fluid pressure, including expansions and contractions of the tubes themselves. ECT is one of the most ideal inspection ...
By Zetec, Inc
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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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CSIR - Division of Mining Technology Quality Assurance Department - South Africa - Case Study
Background The Ball-Tech Energy Ltd automatic heat exchanger tube cleaning system type BMS – 8" system was installed and tested on 1996 on an underground refrigeration machine. The refrigeration plant was operated for two periods of two months with and without the cleaning system in use. Results of the investigation showed clearly that the measured performance of the plant deteriorated by ...
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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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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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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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Kenics Heat Exchanger Increased Production Capacity in Specialty Chemical Plant
Increasing production capacity and setting a monthly production record are targeted goals for all manufacturers. To achieve this, all equipment and systems must work in perfect unison and perform to optimal efficiency. The Situation A large specialty chemical manufacturer located in Ohio was experiencing unsatisfactory production levels due to the plant’s old, outdated, inefficient ...
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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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Enhancement of heat and exergy transfer inside double pipe heat exchanger with conical tube
Enhancement of heat and exergy transfers in double pipe exchangers with conical tubes is investigated. Different fluid combinations are selected. The momentum and energy equations for both fluids are solved mathematically and numerically. Both solutions are well matched. A parametric study including the effect of the thermal conductivity, thermal capacity and the tube to pipe diameters ratios is ...
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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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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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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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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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The Major Components of Heat Exchangers
Heat exchangers are not only one of the most common pieces of equipment found on industrial sites, they are also one of the most important. Despite the name, heat exchangers are used for both heating and cooling and are actually used more often for cooling, especially on industrial sites such as refineries or processing plants. These pieces of equipment are not “one size fits all.” In ...
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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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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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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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