* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Friday, June 27, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Wayve Expands Engineering Leadership to Power Next-Gen Autonomous Driving Technology – Silicon Canals

    Wayve Boosts Engineering Leadership to Accelerate Next-Gen Autonomous Driving Innovation

    Frontdoor Announces Tech Expert Dr. Bala Ganesh as Chief Technology Officer – Business Wire

    Frontdoor Appoints Tech Visionary Dr. Bala Ganesh as New Chief Technology Officer

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    China’s Military Introduces Mosquito-Sized Drones: A Game-Changing Surveillance Technology – Indian Defence Review

    China Unveils Mosquito-Sized Drones: Revolutionizing Surveillance Technology

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Susquehanna Raises Penn Entertainment Inc. (PENN) Price Target. – Yahoo Finance

    Susquehanna Raises Price Target for Penn Entertainment Inc. (PENN)

    George Lopez is coming to Spokane – KXLY.com

    George Lopez is coming to Spokane – KXLY.com

    Netflix unveils Dallas immersive venue for fans of hit shows like ‘Squid Game,’ ‘Stranger Things’ – Houston Chronicle

    Step Inside Netflix’s New Dallas Immersive Experience Featuring Hits Like ‘Squid Game’ and ‘Stranger Things

    ‘Puttin’ on the Ritz’: Civic Players bring ‘Young Frankenstein’ to life – Yahoo

    Civic Players Deliver a Hilarious and Unforgettable Performance of ‘Young Frankenstein

    ‘Wheel of Fortune’: Amputee Wins $60,000 After Breaking Incredible ‘Curse’ – Hastings Tribune

    Wheel of Fortune’ Amputee Breaks Incredible ‘Curse’ to Win $60,000!

    North Star Sports & Entertainment Network: Coming soon – KTTC News

    North Star Sports & Entertainment Network: Coming soon – KTTC News

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    Wayve Expands Engineering Leadership to Power Next-Gen Autonomous Driving Technology – Silicon Canals

    Wayve Boosts Engineering Leadership to Accelerate Next-Gen Autonomous Driving Innovation

    Frontdoor Announces Tech Expert Dr. Bala Ganesh as Chief Technology Officer – Business Wire

    Frontdoor Appoints Tech Visionary Dr. Bala Ganesh as New Chief Technology Officer

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    Defense technology giant Northrop Grumman to host interviews in Iuka to fill technician roles – supertalk.fm

    China’s Military Introduces Mosquito-Sized Drones: A Game-Changing Surveillance Technology – Indian Defence Review

    China Unveils Mosquito-Sized Drones: Revolutionizing Surveillance Technology

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Marvell Technology Stock Rallies After AI Event Sparks Investor Optimism – Yahoo Finance

    Promising Technology Stocks To Follow Today – June 22nd – MarketBeat

    Top Technology Stocks to Watch Today – June 22nd

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

Heat Pumps—the Well-Tempered Future of A/Cs

July 6, 2023
in Science
Heat Pumps—the Well-Tempered Future of A/Cs
Share on FacebookShare on Twitter

During heat waves in Phoenix, while some people fry eggs on sidewalks, Matt Heath, a heating, ventilation, and air-conditioning (HVAC) service manager at AC by J, is on the front line, helping maintain air conditioners in people’s homes. Heath has great job security: Half of Phoenix residents are at risk of an emergency-room visit or worse if their electricity fails during a future heat wave, according to a recent study. Air-conditioning is what keeps people there comfortable—and alive—a growing fraction of the year. The extreme heat already kills hundreds of Phoenix-area residents every year, a number that went up by 25 percent from 2021 to 2022.

Phoenix is a harbinger of life in the many hot parts of the world that are getting richer, where people are demanding ever more air conditioners. This in turn exacerbates the extremes of climate change due to increased demand for fossil-fuel-intensive sources of electricity, as well as leakage of refrigerants, themselves noteworthy greenhouse gases. “Most of the growth of air-conditioning will be in other countries,” says mechanical engineer Vince Romanin, cofounder and CEO of the San Francisco–based Gradient Comfort, “and restricting access is not fair.” Instead, he and others are trying to invent new climate-control technology that doesn’t further increase the dangers facing the planet’s climate.

The winners of the 2021 Global Cooling Prize—both heat pumps—reduce cooling’s climate impact by as much as 80 percent.

Ironically, the most promising way to improve air conditioners may be to focus on heating. While governments around the world have dangled greater efficiency as a way of mitigating air-conditioning’s climate impact, innovation in air-conditioning, narrowly defined, is incremental. “Within the HVAC world, innovations tend to be small and progressive: There’s not some silver bullet,” says Wade Conlan, an engineer at Hanlon Professional Services in Maitland, Fla., and vice president of ASHRAE, a heating and air-conditioning standards-setting organization. Better air conditioners, in a technical sense, really affect only the last link in a long, climate-harming supply chain, whereas replacing residential furnaces stands to make a bigger impact. Their fate, in turn, is tied to air conditioners through their versatile cousins, heat pumps.

It may seem like the cool air coming from your home’s air conditioner is coming from just the other side of the unit. But to get the air conditioner’s compressor working in the first place, a faraway power plant had to produce a surge of electricity. If, like 60 percent of the U.S. grid, that plant used a CO2-emitting source, then the local problem may be solved, but only at the expense of a more global threat. On longer time frames, the refrigerant in your air conditioner will leak into the atmosphere where it, too, will absorb sunlight, possibly even more than CO2, and heat the planet long after the blades of your air conditioner’s fan have stopped spinning.

This year, the U.S. Department of Energy tightened efficiency testing standards for air conditioners for the first time since 2015. Air conditioning is a mature technology, whose first patents date to the early 1900s and whose residential use goes back 90 years. As a result, air-conditioner manufacturers are probably more interested in keeping up with global demand than in developing expensive, potentially disruptive climate-impact improvements.

Still, in the United States, cooling represented just 8 percent of residential energy demand, compared with (as of 2015 at least) 43 percent for heating. In other words, an incremental efficiency improvement in heating will have a much bigger overall impact on energy demand and therefore climate change. And anything—such as electrically powered heat pumps—that can shift heating away from natural-gas furnaces to cleaner sources of energy would also have a big climate impact, because 63 percent of American homes get their heat from natural gas.

In fact, both winners of the 2021 Global Cooling Prize, aimed at improving air conditioners, address heating, because they are both heat pumps. As the Cooling Prize’s website notes, their award-winning heat pumps—made by Gree in Zhuhai, China, and Daikin and Nikken in Haryana, India, and Tokyo, respectively—reduce cooling’s climate impact by as much as 80 percent compared with the impact of traditional air-conditioning.

If air-conditioning is going to be climate-friendlier, says Romanin, of Gradient Comfort, “it needs to be smart, talk to the grid, use better refrigerant, and be a heat pump.”

What are the pros and cons of a heat pump?

Heat pumps offer ways of addressing all three of the major sources of building-related climate-forcing emissions, Romanin says: natural-gas leakage in gas-powered furnaces, refrigerant leakage in air conditioners, and electricity use. All three, he says, have combined to create a problem set and solution space much bigger than anything he could achieve by just building a conventional air conditioner that’s some fraction of a percent more efficient than last year’s model.

Heat pumps eliminate the first of those sources altogether—no natural gas needed—and offer pathways to reducing the other two sources of climate-forcing emissions. Heat pumps are also compatible with natural refrigerants with lower climate impacts. They can consume less electricity than conventional central air conditioners, and their heating modes can be more cost-effective than gas furnaces in some climate zones. Plus, heat pumps offer the possibility of emissions-free power, depending on the local electricity supply, because they are electric.

With all these advantages, it may seem difficult to understand why more builders haven’t adopted heat pumps. The institutional inertia behind air-conditioning is considerable, and legal conservatism explains some of the reasons for the slow transition: An architect won’t get sued for calling for industry-standard HVAC, but he might if a relatively new-on-the-market heat pump doesn’t meet a building operator’s needs. Another reason is a problem every renter in the world has faced: The person who pays the energy bills isn’t the person who selects and installs the appliances. That might have been more relevant when heat pumps cost more than air conditioners, but at least according to some estimates, they are now approaching up-front price parity with central air-conditioning, and are cheaper to install than a comparable air conditioner–gas furnace combination.

“It’s not very often we get someone who wants to convert their HVAC system from natural-gas heating to a heat pump for climate reasons. It’s mostly economic.”
—Matt Heath, AC by J, Phoenix, Ariz.

In one scenario, a heat pump might cost US $4,200 to $7,600 including installation, compared with $3,800 to $7,500 for central air-conditioning only. However, the fairer comparison would be to both a central air conditioner and a gas furnace, which might total $5,000 to $12,000. Of course, these competing technologies have different operating costs that depend on changing regional electricity and natural-gas prices. In the United States, an additional economic incentive to switch to heat pumps has been added to the mix. The U.S. Inflation Reduction Act of 2022 offers subsidies of up to $8,000 to households meeting certain income requirements for installing heat pumps.

Heath says that most of the homeowners he helps with heat-pump installations or conversions tell him they have an aversion to installing a natural-gas line or prefer not to have a source of combustion running through their homes. In southern Arizona, where most people use the heat for only a couple of weeks a year, the conversion may not even require a subsidy to add up. “It’s not very often we get someone who wants to convert their HVAC system from natural-gas heating to a heat pump for climate reasons,” says Heath, the HVAC service manager, “It’s mostly economic.”

Indeed, Conlan, who lives in Florida, says he worked out that a heat pump would pay off while he lived in his house, and he has had one instead of an air conditioner for decades.

In colder parts of the country, the heating component of heat pumps matters more, and heat pumps cannot produce as much heat as gas furnaces in the coldest climates.

But some models are starting to be competitive in even traditionally cold-weather climates, argue several climate-focused civil society organizations, including the Building Decarbonization Coalition. Governments should educate and encourage homeowners and building contractors to replace air conditioners and furnaces with heat pumps, the coalition argued in a June 2023 report. “Up north there is a tipping point that they’re trying to get to,” Conlan says.

Air conditioners, gas furnaces, and heat pumps are only part of the climate-control story: Cleaner electricity production, more efficient grids, and better-insulated buildings are probably lower-hanging fruit. “The better you insulate, the less heat you need in the first place,” Conlan says.

Yet for now, heat pumps have the attention of regulators, major industry players, and civil society groups. They also have the attention of HVAC specialists such as Heath. Variable-speed heat pumps tend to run on lower settings more of the time than one-speed air conditioners. Heath says that makes them ripe for other improvements. For example, the HVAC industry might be able to eliminate the huge surges of current that legacy air conditioners need when they’re turned on, improving the health of the grid and creating the possibility of powering heat pumps from sources such as solar panels or even domestic battery storage. Heath says, “I keep thinking, ‘What else is there?’”

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : IEEE – https://spectrum.ieee.org/heat-pump-air-conditioning-alternative

Tags: Pumps—thescienceWell-Tempered
Previous Post

Finding the Neural Correlates to Consciousness Is Still a Good Bet

Next Post

Hundreds of Resources Highlighted During IEEE Education Week

Fossil evidence of proboscidean frugivory and its lasting impact on South American ecosystems – Nature

Fossil evidence of proboscidean frugivory and its lasting impact on South American ecosystems – Nature

June 27, 2025
Distrust in public-health institutions is not just an American problem – The Economist

Distrust in public-health institutions is not just an American problem – The Economist

June 27, 2025
Cuts to federal science spending will cost every American – University of California

Cuts to federal science spending will cost every American – University of California

June 27, 2025
CCTA Bests CV Risk Scores for Bolstering Lifestyle Changes, Medication Uptake – TCTMD.com

CCTA Bests CV Risk Scores for Bolstering Lifestyle Changes, Medication Uptake – TCTMD.com

June 27, 2025
TIFF announces first wave of World Premieres! – TIFF – Toronto International Film Festival

TIFF announces first wave of World Premieres! – TIFF – Toronto International Film Festival

June 27, 2025
With no end to war in sight, Ukraine’s economy teeters on the edge – The Washington Post

Ukraine’s Economy on the Edge as Conflict Shows No End in Sight

June 27, 2025
A typical workday for freelancer Ashley Abramson – Association of Health Care Journalists

A Day in the Life of Freelancer Ashley Abramson: Inside Her Dynamic Workday

June 27, 2025
‘This is not a luxury’: Families in Trump states agonize over GOP’s proposed Medicaid cuts – CNN

Families in Trump States Face Hardship Amid GOP’s Push for Major Medicaid Cuts

June 27, 2025
Wayve Expands Engineering Leadership to Power Next-Gen Autonomous Driving Technology – Silicon Canals

Wayve Boosts Engineering Leadership to Accelerate Next-Gen Autonomous Driving Innovation

June 26, 2025
Fantasy Football: Which teams are set to pass the most (and least) in 2025? – Yahoo Sports

Fantasy Football Preview: Which Teams Will Lead the League in Passing Attempts in 2025?

June 26, 2025

Categories

Archives

June 2025
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
30 
« May    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (699)
  • Economy (719)
  • Entertainment (21,613)
  • General (15,584)
  • Health (9,758)
  • Lifestyle (724)
  • News (22,149)
  • People (721)
  • Politics (726)
  • Science (15,937)
  • Sports (21,215)
  • Technology (15,703)
  • World (699)

Recent News

Fossil evidence of proboscidean frugivory and its lasting impact on South American ecosystems – Nature

Fossil evidence of proboscidean frugivory and its lasting impact on South American ecosystems – Nature

June 27, 2025
Distrust in public-health institutions is not just an American problem – The Economist

Distrust in public-health institutions is not just an American problem – The Economist

June 27, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version