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Heat pumps, which use the outside as a source—or sink—for heat, are a familiar environmental control technology in many homes. Kathy Hannun, founder and president of Dandelion Energy, a company that makes household geothermal heat pump systems, discusses the efficiency advantages and engineering challenges of drawing heat from the ground.
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Oct 8
A New Generation of Rebar
If you see a concrete structure of any kind, be it a building, road, or maybe piece of art, in all likelihood it’s supported by rebar. While there are a few varieties of steel rebar, from the standard steel to epoxy coated, they all suffer from corrosion issues. Two doctoral grad ... Show More
40m 13s
Sep 8
Engineering and Design Justice
When it comes to engineering and design, no matter the end goal, be it a device or structure or sweeping plan of action, the idea that engineering is done for the betterment of humanity is a constant, whether it can be tangibly quantified or not.As Sita Syal and Julia Kramer, ass ... Show More
42m 55s
Jul 2021
How to Get Comfortable with Negotiation with Kathy Hannun of Dandelion Energy
If you asked how ubiquitous electric vehicles would be a decade ago, it's hard to imagine their current rise into the mainstream. So what's next for clean energy innovation? Kathy Hannun, co-founder of Dandelion Energy, believes the next frontier is geothermal heat pumps. At Dand ... Show More
31m 32s
Jun 2023
Tapping the heat beneath your feet with Kathy Hannun of Dandelion Energy
Millions of American households rely on oil for heat. Growing up in New Hampshire, Kathy Hannun was familiar with this decades-old and environmentally-taxing approach. As part of Google’s innovation lab, X, she began unearthing a solution — indeed from underground...This week on ... Show More
31m 46s
Jul 2023
Heating Up: What Record Temperatures Mean For Energy
New challenges for our power supplies in a warming world.Global temperatures have been breaking records this summer. On some estimates, the earth is the hottest that it has been for about 125,000 years. In Phoenix, Arizona, temperatures have consistently reached over 110 degrees ... Show More
56m 38s
Jun 2023
EP36 heat pumps is cheaper
US emissions fell during the height of the (pandemic ) as people were stuck at home and they are far fewer vehicle on the road ,but that changed as (the pandemic) east ,And new report in this week shows emissions rose again by a small (amount ) last year , many researchers , ... Show More
2m 16s