FundamentalsCompabloc Heat Exchanger Working Principle
Learn how a Compabloc heat exchanger works, including flow arrangement, plate design and heat transfer mechanism in welded plate heat exchangers.
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Evergreen engineering guidance—not project promotion. Browse fundamentals, technology, design, materials, applications and maintenance.
Design Guide
How to Select the Right Plate Heat Exchanger for Industrial Applications
Read engineering guideFundamentals
Working principles, terminology and thermal concepts.
Browse this topic 0215 engineering guidesTechnology
How exchanger constructions differ and where they fit.
Browse this topic 036 engineering guidesSelection & design
Duty data, sizing logic and configuration decisions.
Browse this topic 044 engineering guidesMaterials & corrosion
Metals, gaskets, bonding and fluid compatibility.
Browse this topic 0511 engineering guidesApplications
Engineering guidance organized around process duties.
Browse this topic 068 engineering guidesOperation & maintenance
Cleaning, fouling, troubleshooting and service life.
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Fundamentals
Working principles, terminology and thermal concepts. 7 articles
Fundamentals
FundamentalsEconomizer Heat Exchanger: Principle, Applications, and Engineering Value
An economizer heat exchanger recovers waste heat from flue gas or process streams to improve efficiency and reduce fuel consumption in industrial and boiler systems.
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FundamentalsFrom Steam Coils to Digital Thermal Systems: A Brief History of Heat Exchangers
Explore the evolution of heat exchanger technology from the industrial revolution to modern digital thermal systems. Discover global innovations and the rapid development of China’s heat exchanger industry.
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FundamentalsHow Plate Heat Exchangers Are Transforming the Mining Industry
Learn how plate heat exchangers are used in mining industry applications including mine ventilation cooling slurry heat transfer tailings cooling and mining equipment oil cooling systems. HEXNOVAS provides advanced industrial heat exchanger solutions for mining operations.
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FundamentalsScaling vs Fouling in Heat Exchangers: The Hidden Profit Drain You Don’t See
Learn the difference between scaling and fouling in heat exchangers, how they reduce U-value, increase pressure drop and energy cost, and how to prevent efficiency loss using chemistry control, filtration, correct exchanger design and monitoring.
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FundamentalsWhat Is Cascade Refrigeration?
Cascade refrigeration is a low-temperature system using two separate vapor-compression cycles connected by a cascade heat exchanger. Learn how cascade systems work, typical refrigerant pairing such as CO₂/NH₃, and how to select a plate heat exchanger for efficiency, stability, and industrial refrige
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FundamentalsWhy Small Temperature Difference Applications Require Long or Multi-Pass Plate Heat Exchangers
Learn why small temperature difference applications require long or multi-pass plate heat exchangers, and why shell and tube heat exchangers become inefficient when LMTD becomes very small. This article explains low delta T heat transfer, long plate design, multi-pass flow arrangement, and practical
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Technology
How exchanger constructions differ and where they fit. 15 articles
Heat Exchanger TechnologiesAlfa Laval Compabloc Alternative: Industrial Welded Heat Exchanger Solutions
Looking for an alternative to Alfa Laval Compabloc? Learn about welded plate heat exchanger solutions offering high efficiency, compact design and reliable industrial performance.
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Heat Exchanger TechnologiesBrazed Plate Heat Exchangers: Compact, Efficient, and Durable Flat Plate Solutions
Learn what a brazed plate heat exchanger is, how it works, and why it offers superior thermal efficiency, compact design, and durability for HVAC, refrigeration, and industrial systems.
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Heat Exchanger TechnologiesCarbon & Graphite Heat Exchanger
Carbon & Graphite Heat ExchangerStructure, Features, Applications and Advantages1. What is a Carbon and Graphite Heat Exchanger?A Carbon and Graphite Heat Exchanger is a special type of heat exchanger designed for highly corrosive chemical processes. It uses carbon or graphite as the primary hea
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Heat Exchanger TechnologiesGasket Fixing Systems in Gasketed Plate Heat Exchangers
Detailed explanation of glue, clip, stud and snap-in gasket mounting systems for plate heat exchangers. Improve maintenance efficiency and sealing performance
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Heat Exchanger TechnologiesDimple Plate Jacket vs Dimple Jacket Tank
Compare dimple plate jackets and dimple jacket tanks used for industrial temperature control. Learn their structure, heat transfer mechanism, and applications in chemical reactors, fermentation tanks, storage vessels, and process equipment.
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Heat Exchanger TechnologiesFree Flow Plate Heat Exchanger
Free Flow Plate Heat Exchanger designed for high viscosity, fiber-containing and fouling media. Wide gap channel design reduces clogging and extends cleaning intervals. Ideal for sludge, oil cooling and industrial wastewater applications.
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Heat Exchanger TechnologiesHEXNOVAS Heat Exchanger Types and Applications
Shell & Plate heat exchanger overview and selection guide. Compare BPHE, GPHE, semi-welded, shell & plate, spiral, and pillow plate designs, with practical selection factors and downloadable catalog PDF.
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Heat Exchanger TechnologiesPillow Plate Thermal Shields for High-Temperature Applications
Learn how pillow plate thermal shields provide active cooling and heat protection for furnaces, reactors, waste-to-energy systems, and other high-temperature industrial applications.
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Heat Exchanger TechnologiesHeat Exchanger Market Poised at USD 23.54B by 2030, Amid Rising Energy-Efficiency Focus, Says Mordor Intelligence
Heat Exchanger Market, plate frame heat exchanger.
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Heat Exchanger TechnologiesWhat is a Compabloc Heat Exchanger? (Complete Guide)
Learn what a Compabloc heat exchanger is, how it works, its structure, advantages and industrial applications. Complete guide to welded plate heat exchangers for chemical and industrial processes.
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Heat Exchanger TechnologiesWhat is the Difference Between Compabloc and Shell and Tube Heat Exchangers
Compare Compabloc and shell and tube heat exchangers including efficiency, size, performance and industrial applications. Engineering selection guide for heat exchangers.
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Heat Exchanger TechnologiesSPIRAL PLATE HEAT EXCHANGER (SPHE)
SPHE provides reliable heat transfer in sludge, wastewater, heavy oil and scaling services. Single-channel spiral design ensures stable operation, reduced plugging and easy mechanical cleaning.
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Heat Exchanger TechnologiesWhy Fully Stainless Steel Hygienic Heat Exchangers Are Required in Food and Pharmaceutical Applications
Technical guide explaining why hygienic heat exchangers must use 316L stainless steel, FDA-certified gaskets and fully stainless steel fusion bonding in food and pharmaceutical applications.
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Heat Exchanger TechnologiesFAQ – Semi-Welded Plate Heat Exchangers in Ammonia Refrigeration
Semi-welded plate heat exchangers are ideal for ammonia refrigeration systems, offering high pressure resistance, safety, and superior heat transfer efficiency.
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Heat Exchanger TechnologiesPlate Heat Exchanger Distributor Technology – Equalancer System Explained
Get efficient Alfa Laval heat exchanger and PHE solutions for your industry. Explore advanced plate heat exchanger technology. Contact us for details!
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Selection & design
Duty data, sizing logic and configuration decisions. 6 articles
Design GuideComparison Between Stainless-Steel (Nickel) Brazing and Copper Brazing in Heat Exchangers
Compare copper-brazed vs stainless-steel (nickel) brazed plate heat exchangers (BPHE): temperature limits, corrosion resistance, ammonia and seawater compatibility, and best applications.
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Design GuideDX vs Flooded Evaporation in Plate Heat Exchangers
Technical comparison of DX and flooded evaporation in plate heat exchangers, covering efficiency, refrigerant charge, and industrial refrigeration applications.
Read engineering guideDesign GuideHow to Select the Right Plate Heat Exchanger for Industrial Applications
Learn how to select the right plate heat exchanger for industrial applications based on thermal duty, temperature profile, pressure drop, fluid properties, fouling tendency, material compatibility, and maintenance requirements.
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Design GuideHow to Size a Pool Heat Exchanger
Learn how to size a swimming pool heat exchanger based on pool volume, temperature rise, heating source capacity, and water flow rate. Practical guide for selecting the correct pool heat exchanger.
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Design GuideSteam Plate Heat Exchanger Design: Why Special Plates Like TS6M & TS20M Are Used for Steam Heating
Learn how steam plate heat exchangers work, why steam condensation requires special plate design, and when TS-type plates such as TS6M and TS20M are used. This guide also explains steam gasket selection, including EPDM vs Viton G, materials selection, and plate vs shell & tube comparison.
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Design GuideSulphuric Acid Heat Exchanger – Complete Engineering Guide
Complete engineering guide to sulphuric acid heat exchangers, covering corrosion mechanisms, material selection, exchanger types, plate heat exchangers, spiral heat exchangers, and industrial acid cooling applications.
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Materials & corrosion
Metals, gaskets, bonding and fluid compatibility. 4 articles
Materials & CorrosionGasket Testing and Manufacturing Control in Plate Heat Exchangers
Learn how gasket testing ensures reliable sealing in plate heat exchangers. Explore tensile strength, elongation, compression set and vulcanization control for long service life.
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Materials & CorrosionHow to Select Gaskets for Gasketed Plate Heat Exchangers
Learn how to select gaskets for gasketed plate heat exchangers based on temperature limits, chemical compatibility, operating pressure, CIP cleaning conditions, and service life. This engineering guide explains EPDM, NBR, FKM, and silicone gasket selection for GPHE applications.
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Materials & CorrosionMaterial Selection for Heat Exchangers
Comprehensive guide to heat exchanger material selection including 304, 316L, Titanium, 254 SMO and Hastelloy C276. Compare temperature limits, pH range and chloride resistance.
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Materials & CorrosionPool Heat Exchanger Material Guide
Learn how to choose the correct pool heat exchanger material for swimming pool heating systems. Understand when titanium is required and when stainless steel may be acceptable based on pool water chemistry and corrosion risk.
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Applications
Engineering guidance organized around process duties. 11 articles
Chemical ProcessingPalm Oil Refining Heat Exchanger Solution for BPO to RBDPO Processing
Discover the HEXNOVAS palm oil refining heat exchanger solution for BPO to RBDPO processing. Improve deodorization heat recovery, reduce steam consumption, and optimize final cooling with spiral, full welded, and gasketed plate heat exchangers.
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Chemical ProcessingPlate Heat Exchanger Solution for Enriched Electrolyte Cooling in Copper Mining
HEXNOVAS provides plate heat exchanger solutions for copper mining electrolyte cooling, covering exchanger type selection, corrosion-resistant materials, gasket compatibility, and testing control.
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Food & PharmaceuticalPillow Plate Jackets for Wine Tanks
Pillow plate jackets are widely used in wine tanks for efficient cooling and heating. This solution ensures stable fermentation temperature, uniform heat transfer, and hygienic tank design for winery applications.
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HVAC & RefrigerationCO₂ Refrigeration Heat Recovery with High-Pressure BPHEs
Learn how CO₂ refrigeration heat recovery works in supermarkets and how ultra high pressure brazed plate heat exchangers recover waste heat to produce hot water, improving system efficiency and reducing energy costs.
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Industrial ApplicationsChiller vs Heat Pump: What’s the Real Difference?
Learn the difference between chillers and heat pumps in industrial thermal systems. Discover how heat pumps recover waste heat, improve energy efficiency, and reduce operating costs in HVAC and refrigeration applications.
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Industrial ApplicationsFLUE GAS HEAT RECOVERY
FLUE GAS HEAT RECOVERYHigh-Temperature Industrial Waste Heat Recovery Solution1. IntroductionFlue gas heat recovery is one of the most effective ways to improve energy efficiency in high-temperature industrial processes. In sectors such as biomass boilers, feed dryers, cement kilns, steel furnaces,
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Industrial ApplicationsHeat Exchangers Used as Evaporators and Condensers
This article explains how different heat exchanger types are used as evaporators and condensers in refrigeration systems, including brazed plate heat exchangers, semi-welded plate heat exchangers, fully welded plate heat exchangers, spiral heat exchangers, and shell-and-tube heat exchangers.
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Industrial ApplicationsHeat Exchangers in Data Centers
Heat exchangers in data centers: BPHE inside CDU, free cooling interfaces, waste heat recovery, and material selection. Includes a practical FAQ and product links for BPHE, GPHE, Shell & Plate, and Pillow Plates.
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Industrial ApplicationsHow Heat Exchangers Improve Refrigeration Efficiency
Learn how heat exchangers improve refrigeration efficiency through higher evaporation temperatures, reduced pressure drop, improved heat transfer, and heat recovery integration.
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Industrial ApplicationsR718 Water Refrigeration Systems: Engineering Perspective and Heat Exchanger Design
Learn how water (R718) refrigeration works under deep vacuum conditions and why plate heat exchangers play a critical role in vacuum refrigeration systems. HEXNOVAS provides advanced industrial heat exchanger solutions for sustainable refrigeration applications including CO2 and water based cooling
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Industrial ApplicationsSpiral Plate Heat Exchanger for Sludge Heat Recovery
Spiral Plate Heat Exchangers (SPHE) are designed for sludge, wastewater, and fouling services. Learn how spiral geometry ensures stable operation and reliable heat recovery.
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Operation & maintenance
Cleaning, fouling, troubleshooting and service life. 8 articles
Operation & MaintenanceAnalysis and Mechanism of Leakage Caused by Freezing in Brazed Plate Heat Exchangers
This article explains the causes, mechanisms, and design-related factors of freezing-induced leakage in plate heat exchangers, with a focus on brazed plate heat exchangers and practical prevention measures.
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Operation & MaintenanceCommon BPHE Problems in Refrigeration Systems
Common problems of brazed plate heat exchangers in refrigeration systems, including freezing, corrosion, fouling and thermal fatigue. Learn causes and prevention methods.
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Operation & MaintenanceCommon Problems with Plate Heat Exchangers and How Alfa Laval Solves Them
Common plate heat exchanger problems explained: fouling and scaling, leakage, corrosion, excessive pressure drop, and thermal fatigue. Learn causes, symptoms, and engineering solutions to improve PHE performance and reliability.
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Operation & MaintenanceHow to Prevent Scaling in Pool Heat Exchangers
Prevent scaling in pool heat exchangers by maintaining proper water chemistry, filtration, and regular maintenance. Improve efficiency and extend service life.
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Operation & MaintenanceFAQ – Flat Plate Heat Exchanger ( Gasket plate heat exchanger ) Maintenance
High-efficiency plate frame heat exchangers for industrial applications. Reliable, durable, and customizable frame plate heat exchangers by HEXNOVAS.
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Operation & MaintenanceMaintenance and Cleaning of Plate Heat Exchangers
Expert plate heat exchanger cleaning services to boost efficiency & prevent downtime. Get reliable solutions today from industry professionals.
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Operation & MaintenanceMinor Leakage at Head Plate Gaskets During Start-Up of GPHE with Viton (FKM) Gaskets
Minor leakage at head plate gaskets during GPHE start-up with Viton (FKM) gaskets is typically a temporary thermal expansion effect. Learn the causes and preventive measures.
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Operation & MaintenancePool Heat Exchanger Maintenance Guide
Learn how to clean, inspect and maintain swimming pool heat exchangers. Practical guide to prevent fouling, improve heat transfer efficiency and extend equipment life.
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