Why Low-Temperature Heat-Pump Drying Conventional grain, fruit and herb drying often uses direct fossil-fired hot air above 80-120 C. That high temperature damages colour, aroma and nutrients and wastes energy. Heat-pump drying supplies warm air at 30-60 C, which protects product quality while still removing moisture. The catch is that the exhaust leaving the drying […]
Waste Heat Recovery Across China Process Industries
The Resource at Stake China generates the largest industrial waste-heat resource on the planet – equivalent to more than 1 billion tonnes of standard coal per year, of which over 300 million tonnes are economically recoverable. Yet comprehensive utilisation runs at only about 32%, against roughly 56% in the EU, signalling a large efficiency gap. […]
China Dual-Carbon (3060) Policy as a Driver for Heat Recovery
The 3060 Commitments China has pledged to peak carbon dioxide emissions before 2030 and achieve carbon neutrality before 2060 (the ‘Dual Carbon’ or 3060 goals). Meeting them hinges on industrial energy efficiency – and waste-heat / recovery equipment sits squarely in the toolbox. Key Policy Documents 2024-2025 Energy Conservation and Carbon Reduction Action Plan (State […]
Waste Heat Recovery: Concepts and Payback
Almost every industrial and commercial process rejects heat: exhaust gases, warm water, or hot product streams. Waste heat recovery captures that energy for reuse instead of dumping it. Temperature Levels High grade (>400 °C): Recuperators, regenerators, steam generation. Medium grade (100–400 °C): Air-to-air plate or heat-pipe exchangers, absorption chillers. Low grade (<100 °C): Ventilation recovery, […]
Generator and Engine Exhaust Heat Recovery with Air-to-Air Cores
Standby diesel and gas generators, and indeed any continuous industrial engine, convert only part of their fuel into electricity or shaft work; a large share leaves as hot exhaust, often 400 to 600 degrees C, and as jacket and coolant heat. For a generator set running even a few thousand hours a year, that exhaust […]
Heat Pump Waste Heat Recovery: Lifting Low-Grade Heat
The low-grade problem Much recoverable heat is low-grade – 25-60C drain water, vent air, or process streams. Too cool to use directly, but too warm to waste. A heat pump lifts it to a useful temperature using a little electrical work. How it pairs with air-to-air recovery Start with passive air-to-air or air-to-water recovery to […]
Organic Rankine Cycle: Waste Heat to Electricity
Heat That Usually Goes to Waste Many industrial processes reject heat at temperatures too low for conventional steam turbines but still high enough to be useful. Instead of venting it, that heat can be converted into electricity with an Organic Rankine Cycle. How ORC Works An ORC is a Rankine cycle that uses an organic […]
Waste-Heat Recovery in Food & Agri Drying
The Drying Energy Problem Drying is one of the most energy-intensive steps in food and agriculture processing: grains, herbs, vegetables, and spices all need controlled heat over long periods. Much of that thermal energy leaves the plant as hot, moist exhaust air. Recovering Heat from Exhaust Exhaust from drying tunnels still carries usable sensible heat. […]
Industrial Heat Recovery: A Practical Guide to Capturing Waste Heat
Industrial heat recovery captures waste heat from exhaust gases and ventilation to cut energy costs. Learn the principles, equipment and selection tips.
Industrial Heat Recovery: Principles & Equipment
热回收是将工业与建筑排风、烟气中的废热回收再利用的节能技术。本文详解热回收原理、板式/转轮/热管等常见设备、典型应用场景及选型要点，帮助企业降低燃料消耗、缩短投资回报周期。