Clean energy from heat
Heat can be used to create electricity, cool something down, and/or warm something up. It is similar to renewable energy sources in that it requires no additional fuel and produces no additional emissions and is available year-round. It's also an abundant source of alternative energy: 20-50% of primary energy use in US industries is lost as waste heat.
Estimating heat content
One of the first steps in any waste heat project is understanding the quantity of thermal energy that can be recovered at the source. Whether you have a steel mill, a cement kiln, generator, or compressor station, our streamlined calculator can estimate the amount of thermal energy available in your exhaust, steam, or hot water. Try it out here.
A hub of heat recovery information
Heatcalc is also a central point for useful information about waste heat utilization projects. You can find information About Heat or the different uses of heat including Heat for Warming, Heat for Cooling, and Heat for Electricity. There are basic guides on Making a Project Happen and evaluating Project Economics and Examples of innovative projects and products. More is in the works, and if you would like to see us expand on a topic, send us an inquiry.
Heat recovery in the news
Below are a few articles about what is happening in the waste heat utilization industry. If we have missed something, send us a note in the form below and we can add it.
New cogen installation on Yawkey roof will save $1.5 million a year and can heat and power the hospital's inpatient units for months if the electric grid goes down
Two combined heat and power plants provided by Rolls-royce have gone into operation in Belgium. Rolls Royce CHP technology
Since the beginning of the year, the CHP plants have been supplying energy to a new tomato greenhouse operated by Maxburg BVBA in Meer in Belgium.
Apple is building a new data center in Denmark, and it has some interesting ideas on how to power the data center with renewable energy, while also giving back to the community.
Excess heat generated by the data center will be captured and returned to the local district's heating system, which will warm up homes in the community.
TECHNOLOGY REVIEW - The Matrix PowerWatch is a FitBit competitor that exploits the temperature difference between your skin and the air for power.
A new engine converts waste hot water from industrial equipment into electricity.
NATURE WORLD NEWS - Exergyn, a startup based in Dublin, Ireland, is planning to run the first industrial trials of the new energy-efficient engine by next year, New Scientist reports. The engine generates electricity from heated water that is left over from other equipment. According to co-founder and chief executive Alan Healy, waste hot water (low-grade waste heat or LGWH) from industrial processes amounts to about twice the energy in Saudi Arabia's oil and gas output per year.
Read more articles in our News section
Exploring the sources and uses of heat on a vehicle
Understanding the untapped potential in our vehicles
While I was running a sales team for a product that recovered heat and converted it into electricity, I would get daily inquiries from companies that had waste heat available. Each of them wanted a heat recovery solution.
Sounds great right? It wasn’t.
It’s a topic not often mentioned up front with waste heat recovery projects, but one that can have a significant impact over the life of a project. I’m talking about heat exchanger fouling.
Heat energy is recoverable in huge amounts at industrial facilities across the world and represents an environmentally and economically attractive potential source of clean energy. Check out our first presentation on Slideshare.
20-50% of primary energy input to US industrial facilities is lost as heat, which equals 513 quadrillion Btu per year of unused energy (US DOE). For perspective, that’s somewhere between the entire primary energy consumption of the countries of Turkey and Germany (EIA).
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