Independent air-to-air heat-recovery knowledge base
HeatRecoveryHub — Air-to-Air Heat Exchanger Knowledge Base
Practical, vendor-neutral guides, comparisons and selection tools for air-to-air heat recovery and heat exchangers — written by Zibo Qiyu’s thermal-engineering team (20+ years, 160+ patents).
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Knowledge
Fundamentals of heat recovery — sensible vs enthalpy, core types and how they actually work.
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Step-by-step selection, sizing and specification you can apply to a real project.
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Plate vs rotary vs heat-pipe — side-by-side trade-offs and when to use each.
Compare →Standards
EN 308, EN 13053, ErP/Ecodesign, ASHRAE and CE marking, explained plainly.
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What Is a Heat Exchanger? Types & How It Works
A plain-English guide to heat exchangers: the physics of heat transfer, the main families (recuperative, regenerative, run-around), air-to-air types, and the metrics...
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Air-to-Air Heat Recovery Explained: Sensible vs Enthalpy
HRV or ERV? This guide explains sensible (temperature-only) vs enthalpy (temperature + moisture) recovery, effectiveness, frost and condensate, and when to choose...
Read →Heat Exchanger Selection Guide: Sizing, Airflow, ΔT, Efficiency
A six-step method to select an air-to-air heat exchanger: define the duty, pick a type, size with effectiveness–NTU, check pressure drop, choose...
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Heat Recovery Applications by Industry
A survey of where air-to-air heat recovery pays off — data centers, commercial HVAC, industrial drying, cleanrooms, mines, livestock, marine, kilns, cement...
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Mushroom Dryer Heat Recovery
Mushroom drying, from shiitake to oyster varieties, hinges on precise humidity and temperature to develop the right texture...
Read →Fruit Dryer Heat Recovery
Fruit dehydration needs low temperature to keep color, sugar, and vitamins, and its exhaust is warm and very...
Read →Herb Dryer Heat Recovery
Medicinal and culinary herbs lose active compounds and essential oils if dried too hot, so low-temperature, controlled-humidity drying...
Read →Sludge Dryer Heat Recovery
Wastewater and biosolid sludge drying is extremely energy-intensive because of very high water content and an odorous, corrosive...
Read →Pet Food Dryer Heat Recovery
Extruded pet food is dried and cooled on high-throughput lines, and both the dryer and cooler exhausts carry...
Read →Seafood Dryer Heat Recovery
Fish and seafood dehydrators operate at low temperature with very high moisture removal and produce a corrosive, salty,...
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