Archive Pages Design$type=blogging

New Device Appears to Defy the Second Law of Thermodynamics

“In all energy exchanges, if no energy enters or leaves the system, the potential energy of the state will always be less than that of the...

>

“In all energy exchanges, if no energy enters or leaves the system, the potential energy of the state will always be less than that of the initial state.”

In simpler terms, the Second Law of Thermodynamics states that heat always flows from the hotter object to the cooler object until they’re equal and a state of thermal equilibrium is reached. Heat can’t flow by itself from a colder to a warmer object … except perhaps in Zurich.

“At first sight, the experiments appear to be a kind of thermodynamic magic, thereby challenging to some extent our traditional perceptions of the flow of heat.”

The traditional flow of heat is from hot to cold

Researchers from the University of Zurich announced this week that they seem to have broken the Second Law of Thermodynamics with a simple heat pump device known as a Peltier element. Using it as a kind of thermodynamic magic wand, Prof. Andreas Schilling of the Department of Physics at the University of Zurich announced in a news release that he and his team cooled a nine-gram piece of copper from over 100°C to significantly below room temperature without an external power supply.

“Theoretically, this experimental device could turn boiling water to ice, without using any energy.”

Is this a Tesla moment? Only if the process can withstand the heat (or is it now cold?) of a closer analysis. Peltier elements normally use energy to reduce temperature and can be found in camping and portable coolers, heat sinks for microprocessors, climate-controlled clothing and hotel minibars. Since a Peltier device (also called a thermoelectric cooler, solid state refrigerator or Peltier heat pump) have no moving parts, they last longer without no need for maintenance. On the downside, they can only be used for small applications since they can generate only a small state of heat/cold flux. Of course, the ability to do this without using any energy whatsoever would change everything … if it weren’t for that Second Law.

“The researchers have now shown for the first time that this kind of thermal oscillating circuit can also be operated “passively”, i.e. with no external power supply. Thermal oscillations still occurred and, after a while, heat flowed directly from the colder copper to a warmer heat bath with a temperature of 22°C, without being temporarily transformed into another form of energy.”

“Heat flowed directly from the colder copper to a warmer heat bath.” That sounds like a law-breaking action, doesn’t it?

“Despite this, the authors were also able to show that the process does not actually contradict any laws of physics. To prove it, they considered the change in entropy of the whole system and showed that it increased with time – fully in accordance with the second law of thermodynamics.”

That may change. Schilling says that in theory, a perfect Peltier element could cool up to -47°C. under the same conditions were the “ideal” Peltier element to be used. Unfortunately, such an element has yet to be created. When that happens …

“… large amounts of hot solid, liquid or gaseous materials could be cooled to well below room temperature without any energy consumption.”

Would that be a violation of the Second Law of Thermodynamics? It sure sounds like it. It wil be worth it because cooling without using a refrigerant or energy will reduce carbon emissions and help reverse climate change.

Will a no-energy minibar fridge lower hotel bills? Probably not.



from Mysterious Universe http://bit.ly/2ZxTrZI

COMMENTS

Loading...
Name

Âm Nhạc Ẩm Thực Angela Phương Trinh Angelina Jolie Bảo Thy benh-gan Bộ Ảnh - Video Brad Pitt Bùa Ngải Bước Nhảy Hoàn Vũ cac-benh-ve-gan Cao Thái Sơn Chi Pu Chuyện chỉ có ở Trung Quốc Chuyện kỳ lạ về trẻ em Chuyện Lạ Chuyện lạ bốn phương chọn lọc Chuyện lạ cảm động về các loài vật Chuyện lạ khó tin nhưng lại có thật Chuyện lạ ở Nhật Bản Chuyện lạ thế giới khó tin nhưng có thật Chuyện lạ về các loài vật Chuyện lạ về các tài năng hiếm có Chuyện lạ về chó và mèo Chuyện lạ về du lịch Chuyện lạ về hôn nhân - vợ chồng Chuyện lạ về những kỷ lục giảm cân Chuyện lạ về sữa Chuyện lạ Việt Nam có thật Cine Cộng Đồng Mạng Công Nghệ Cung Hoàng Đạo Cường Đô La Đàm Vĩnh Hưng Đàn Ông Đặng Thu Thảo dang-mieng Đĩa Bay Diễm My 9x Điện Ảnh Diệp Lâm Anh Đỗ Mạnh Cường Đời Sống doi-song Đông Nhi Đồng Tính Động Vật Du Lịch Đức Phúc fashion Gay Giảm cân Giáo Dục Giới Trẻ Hồ Ngọc Hà Hoa Hậu Hòa Minzy Hoài Linh Hoàng Thùy Linh Học Tiếng Anh hoc-duong Hot News HotNews Hương Giang Idol Hương Tràm Huỳnh Hiểu Minh Issac Jennifer Phạm Jessica Minh Anh Kenbi Khánh Phạm Khám Phá kham-pha Khánh Hiền Khmer News khoa-hoc khoa-hoc-cong-nghe Khoảnh Khắc Lan Khuê Lazada Lê Xuân Tiền Lều Phương Anh Linh Nga Lý Hải Mai Phương Thúy Maria Ozawa Mẹo Vặt Midu Minh Hằng Miu Lê Món ngon mỗi ngày Mọt Phim Musik Mỹ Linh Mỹ Tâm News Ngô Kiến Huy Ngọc Trinh Người ngoài hành tinh Nhật Kim Anh Những chuyện kỳ quặc trên thế giới Những hiện tượng bí ẩn và khó hiểu Những người có khả năng đặc biệt Noo Phước Thịnh Ốc Thanh Vân oto-xe-may Phạm Băng Băng Phạm Hương Phẫu Thuật Thẩm Mỹ Phong cách Phượng Channel Pokémon Go Quang Dũng Sao Shopping Sĩ Thanh Sơn Tùng M-TP sport Star Sức Khỏe suc-khoe suc-khoe-gioi-tinh Tâm Linh Tâm Sự Tăng Thanh Hà Taylor Swift Thanh Hằng Thành Lộc Thanh Thảo The Face - Gương mặt thương hiệu Thể Hình The Remix – Hòa Âm Ánh Sáng the-gioi Thời Trang Thu Minh Thu Phương Thượng Ẩn Thúy Nga Tin Nổi Bật Tin Nóng Tin Thế Giới Tin Trong Nước Tình Yêu Tom Cruise Trà Ngọc Hằng Trấn Thành Trường Giang Trương Nam Thành Tử Vi tv-show UFO Ung Thư Video Việt Hương Vietnam's Next Top Model Vĩnh Thụy Võ Cảnh Võ Hoàng Yến Vũ Khắc Tiệp Vũ Ngọc Anh Vũ Ngọc Đãng xa-hoi xe xo-gan Xu Hướng - Làm Đẹp
false
ltr
item
GIẢI TRÍ SAO 24H: New Device Appears to Defy the Second Law of Thermodynamics
New Device Appears to Defy the Second Law of Thermodynamics
https://mysteriousuniverse.org/wp-content/uploads/2019/04/yin-and-yang-1947878_1920-643x440.jpg
GIẢI TRÍ SAO 24H
https://www.giaitrisao24h.com/2019/04/new-device-appears-to-defy-second-law.html
https://www.giaitrisao24h.com/
https://www.giaitrisao24h.com/
https://www.giaitrisao24h.com/2019/04/new-device-appears-to-defy-second-law.html
true
5412201294335186192
UTF-8
Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All BÀI CÙNG CHỦ ĐỀ LABEL ARCHIVE SEARCH Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago