Navigation Links
First polymer solar-thermal device heats home, saves money
Date:4/4/2011

Winston-Salem, N.C. A new polymer-based solar-thermal device is the first to generate power from both heat and visible sunlight an advance that could shave the cost of heating a home by as much as 40 percent.

Geothermal add-ons for heat pumps on the market today collect heat from the air or the ground. This new device uses a fluid that flows through a roof-mounted module to collect heat from the sun while an integrated solar cell generates electricity from the sun's visible light.

"It's a systems approach to making your home ultra-efficient because the device collects both solar energy and heat," said David Carroll, Ph.D., director of the Center for Nanotechnology and Molecular Materials at Wake Forest University. "Our solar-thermal device takes better advantage of the broad range of power delivered from the sun each day."

Research showing the effectiveness of the device appears in the March issue of the peer-reviewed journal Solar Energy Materials and Solar Cells.

A standard, rooftop solar cell will miss about 75 percent of the energy provided by the sun at any given time because it can't collect the longest wavelengths of light infrared heat. Such cells miss an even greater amount of the available daily solar power because they collect sunlight most efficiently between 10 a.m. and 2 p.m.

"On a rooftop, you have a lot of visible sunlight and heat from the infrared radiation," Carroll said. "The solar-cell industry has for the most part ignored the heat."

The design of the new solar-thermal device takes advantage of this heat through an integrated array of clear tubes, five millimeters in diameter. They lie flat, and an oil blended with a proprietary dye flows through them. The visible sunlight shines into the clear tube and the oil inside, and is converted to electricity by a spray-on polymer photovoltaic on the back of the tubes. This process superheats the oil, which would then flow into the heat pump, for example, to transfer the heat inside a home.

Unlike the flat solar cells used today, the curve of the tubes inside the new device allows for the collection of both visible light and infrared heat from nearly sunrise to sunset. This means it provides power for a much greater part of the day than does a normal solar cell.

Because of the general structure and the ability to capture light at oblique angles, this is also the first solar-thermal device that can be truly building-integrated it can be made to look nearly identical to roofing tiles used today.

Tests of the solar-thermal device have shown 30 percent efficiency in converting solar energy to power. By comparison, a standard solar cell with a polymer absorber has shown no greater than 8 percent conversion efficiency.

The research team will build the first square-meter-size solar-thermal cell this summer, a key step in getting the technology ready for market.


'/>"/>

Contact: Ellen Sterner Sedeno
sternersedeno@sbcglobal.net
336-758-5237
Wake Forest University
Source:Eurekalert

Related biology technology :

1. China-Biotics, Inc. Announces Conference Call to Discuss First Quarter 2009 Financial Results
2. MEDRAD Installs First Intego(TM) PET Infusion System
3. Pioneering IVF Technique Produces Region's First Pregnancy
4. Immtech Reports Fiscal First Quarter 2009 Results
5. Repair Stem Cell Institute Announces Industrys First Standards of Excellence for Global Stem Cell Treatment Centers to Protect Patients from Less-than-Competent Therapeutics
6. Huifeng Bio-Pharmaceutical (HFGB) Reports over $5 Million in Gross Sales; Record Results for the First Half of 2008
7. China-Biotics, Inc. Reports First Quarter 2009 Financial Results
8. Video: CSL Behring Provides $1.2M Grant for Worlds First Study of Postpartum Women with VWD, Common Bleeding Disorder
9. Natures Premium(R) Brand First Fresh Pork in North America to Carry DNA TraceBack(R) Seal of Authenticity
10. Huifeng Bio-Pharmaceutical (HFGB) to Attend CPhI South America 2008 Pharmaceutical Conference; The First CPhI Conference to be held in the Emerging Market of Brazil
11. States First Single Incision Robotic Kidney Removal Performed at Henry Ford Hospital
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/29/2017)... SHANGHAI , March 29, 2017 ... technology platform company dedicated to biologics and a ... received the 2017 Asia-Pacific Best Bioprocessing Excellence Award ... Asia-Pacific Bioprocessing Excellence Awards aims to recognize outstanding ... of tomorrow. Featuring top bioprocessing and biomanufacturing experts ...
(Date:3/29/2017)... ... March 29, 2017 , ... (March 29, ... Mexico has been approved as an active member of the Mexican Direct ... among distributers and consumers in relationship marketing. This professional organization fosters loyal and ...
(Date:3/29/2017)... , March 29, 2017  Applied ... applying mechanistic modeling to drug research and ... collaboration with Zymeworks Inc. for quantitative systems ... therapeutics intended for the treatment of cancer. ... Zymeworks previously for GLP toxicology studies and ...
(Date:3/29/2017)... ... March 29, 2017 , ... On the heels of the ... Colpitts Clinical Trial Travel has announced that it will manage travel services for its ... the first in the United States and Europe to offer travel management services specifically ...
Breaking Biology Technology:
(Date:3/7/2017)... , March 7, 2017   HireVue , the ... global companies identify the best talent, faster, today announced ... Sales Officer (CSO) and Diana Kucer as ... out a seasoned executive team poised to drive continued growth ... on a year of record bookings in 2017. ...
(Date:3/2/2017)... Summary This report provides all the information ... partnering interests and activities since 2010. Download the ... Deals and Alliance since 2010 report provides an in-depth ... world,s leading life sciences companies. On demand ... of the most up to date deal and company ...
(Date:3/1/2017)... , March 1, 2017  Aware, Inc. (NASDAQ: AWRE), ... that Richard P. Moberg has resigned, effective ... and Chief Financial Officer and Treasurer of Aware citing ... serve as a member of the Board of Directors ... Aware,s co-Chief Executive Officer and co-President, General Counsel has ...
Breaking Biology News(10 mins):