Waste Heat Recovery
It’s the biggest source of energy on the planet - Joseph King

image by: World Energy
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Waste Heat: Innovators Turn to an Overlooked Renewable Resource
Waste heat is everywhere. Every time an engine runs, a machine clunks away, or any work is done by anything, heat is generated. That’s a law of thermodynamics. More often than not, that heat gets thrown away, dribbling out into the atmosphere. The scale of this invisible garbage is huge: About 70 percent of all the energy produced by humanity gets chucked as waste heat...
he problem is not so much that waste heat directly warms the atmosphere — the heat we throw into the air accounts for just 1 percent of climate change. Instead, the problem is one of wastage. If the energy is there, we should use it.
Resources
Recapturing excess heat could power most of Europe, say experts
“The global energy crisis is a wakeup call to stop wasting energy,” said Toby Morgan, senior manager for the built environment at Climate Group, an environmental not-for-profit. “Now, more than ever, we need to make better use of the energy we already produce, we simply can’t afford to let it literally escape out the window. Energy efficiency improvements, like capturing and recycling excess heat, are absolutely critical to lower fossil fuel demand and lower bills.”
Tapping into the Electric Power of Heat
What if every gallon of gas in our cars and lump of coal in our power plants did extra duty? What if we could get more work out of our fuel? That's the basic idea of waste heat recovery systems.
Can the heat from running computers help grow our food? It’s complicated
Digital technologies are changing how food is produced. And it’s more than harvesting robots that are arriving on the scene. Companies are now pairing data centres with greenhouses, capturing the heat emitted by computing hardware and reusing it to grow crops indoors.
Converting Energy Waste into Electricity and Heat
Co-generation, sometimes called combined heat and power (CHP), is a way to capture the intense heat escaping from smokestacks and turn it into electricity or put it to other good use, such as heating homes.
Could waste heat recovery be the answer to the energy crisis?
Energy security is crucial to a functioning society. In an age plagued by rising costs, depleting resources, and an ever-looming climate crisis, our energy has come under threat. Finding a long-term, sustainable energy solution is one of the most defining issues of the era. While renewable energies like solar and wind power present glimmers of hope, there’s one significant untapped industry that could provide promising returns: waste heat recovery.
Stealing the heat
Energy: The idea of recycling paper, glass, metal and plastics has become commonplace. New technologies allow heat to be recycled, too.
The case for waste-heat-recovery
Fifty percent of the energy consumed by production processes is being wasted.
Using a City’s Excess Heat to Reduce Emissions
A district in London has developed an innovative way to divert subway heat for buildings to lower carbon emissions. Other cities are getting creative, as well.
Waste not: Unlocking the potential of waste heat recovery
Waste heat recovery can help industrial companies curb emissions, but this potential is largely untapped. Now is the time to turn waste heat into profit.
Waste Heat: Innovators Turn to an Overlooked Renewable Resource
Nearly three-quarters of all the energy produced by humanity is squandered as waste heat. Now, large businesses, high-tech operations such as data centers, and governments are exploring innovative technologies to capture and reuse this vast renewable energy source.

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