Navigation Links
Cheap beads offer alternative solar-heating storage
Date:12/2/2011

A cheap material that can store heat energy collected from the sun during the day that can be released slowly over night has been developed by researchers in the India. The material based on paraffin wax and stearic acid is described in a forthcoming issue of the International Journal of Renewable Energy Technology and could help keep homes warm in sunny parts of the world that get very cold at night without burning wood or fossil fuels.

Mechanical engineer Meenakshi Reddy of Sri Venkateswara College of Engineering and Technology, in Chittoor, Andra Pradesh, and colleagues explain how certain materials, known as phase change materials (PCM) can store a large amount of heat in the form of latent heat in a small volume. PCMs have a high heat of fusion and melt/freeze at a certain temperature. Heat is absorbed when the material melts and released when it freezes. Heated in the sun, the mixture of paraffin wax (which melts at about 37 Celsius) and stearic acid (a fat commonly used to make soap) becomes entirely liquid. However, as it solidifies it slowly releases the stored heat. The process is akin to the phase changing heating that occurs in hand-warmers that contain a PCM but in this case the material does not need to be boiled in a pan or heated in a microwave oven to absorb latent heat.

The team has now tested spherical capsules just 38 millimetres in diameter containing a blend of paraffin and stearic acid, which can be floated on the top of water in a tank. Stearic acid is a lot cheaper on the Indian market than paraffin and more readily available. The team found that costs could be held down without reducing the overall heating efficiency of the capsules by lowering the proportion of paraffin wax.


'/>"/>

Contact: R. Meenakshi Reddy
rmreddy123@gmail.com
Inderscience Publishers
Source:Eurekalert

Page: 1

Related biology news :

1. Caltech scientists develop barcode chip for cheap, fast blood tests
2. Cheap love costs the Earth
3. Cheap and efficient white light LEDs new design described in AIPs Journal of Applied Physics
4. Toward cheap underwater sensor nets
5. A quicker, cheaper SARS virus detector -- one easily customizable for other targets
6. Tires made from trees -- better, cheaper, more fuel efficient
7. Faster, cheaper way to find disease genes in human genome passes initial test
8. Simple test could offer cheap solution to detecting landmines
9. Boston University reseachers develop faster, cheaper DNA sequencing method
10. ASU scientists develop universal DNA reader to advance faster, cheaper sequencing efforts
11. Orange peels, newspapers may lead to cheaper, cleaner ethanol fuel
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ... of the "Global Wearable Technologies Market and ... Overview, Trends and Forecast 2014-2020" report to ... are smart devices that can be worn on ...
(Date:12/22/2014)... , Dec. 22, 2014  NXT-ID, Inc. (NASDAQ: ... authentication company focused on the growing mobile commerce market, announces ... Apollo Robbins for the 2015 International CES debut of ... Robbins will be at the NXT-ID booth January 6th ...
(Date:12/19/2014)... , Dec. 18, 2014 Research and Markets ... "Micro Market Monitor: North America Perimeter Security Systems Market" ... The North American perimeter security market is ... to 2019. Although the U.S. market holds a larger share ...
Breaking Biology News(10 mins):Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3
... It is the first time that a clear link has ... at birth and risk of Autism Spectrum Disorder and follows ... in Sweden. , The research, led by The University of ... poorly grown, low weight babies appear more susceptible to the ...
... 2013 -- A test that measures the expression levels ... effectively differentiate between patients who are at higher and ... the body more than five years after diagnosis, researchers ... individual risk prediction for women with these cancers is ...
... BE, 2 May 2013 -- An important new study ... much measurement variation influences gene expression profiles of breast ... which gene expression measurements may benefit from pooling of ... 5th IMPAKT Breast Cancer Conference in Brussels, Belgium. ...
Cached Biology News:Bigger birth weight babies at greater risk of autism 2Gene expression test distinguishes btw breast cancer patients at high & low risk of late recurrence 2Gene expression test distinguishes btw breast cancer patients at high & low risk of late recurrence 3Study reveals magnitude of variation in gene expression measurements within breast cancers 2Study reveals magnitude of variation in gene expression measurements within breast cancers 3
(Date:1/23/2015)... (PRWEB) January 23, 2015 Biofertilizers stimulate ... such as nitrogen and phosphorous through the activities in ... biofertilizers is increasing due to the stress on reducing ... fertilizers. , The report defines and segments the bio ...
(Date:1/23/2015)... 23, 2015 Portal Solutions , a ... on Microsoft Office 365 and SharePoint platforms , today ... program for being one of the region’s fastest-growing mid-sized companies ... growth. , “To be recognized a second year in ...
(Date:1/22/2015)... Md. (PRWEB) January 22, 2015 ... its new UV-1280 multipurpose UV-visible spectrophotometer. Offering wavelength ... high-quality instrument is ideal for applications in a ... life science. , The user-friendly UV-1280 enables intuitive ...
(Date:1/22/2015)... Bedford, NH (PRWEB) January 22, 2015 ... offers a table top laboratory homogenizer, the PandaPLUS 2000, ... nanoparticles, nanodispersions, nanoemulsions , and cell disruption . ... processing dairy products, fruit juices, liquid food, food additives ...
Breaking Biology Technology:Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 2Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 3Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 4Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 2Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 3Shimadzu’s New Monitored Single-Beam UV-Vis Spectrophotometer Offers Comprehensive Measurement Options in a Compact Body 2GEA Niro Soavi Announces the PandaPLUS 2000 Homogenizer for Processing New Applications for Nanoemulsions and Cell Disruption 2
... ... In the India, CJP is all set to hold 5 Days ... The JatrophaWorld Training Programme 2010-- the Most Authoritative platform shall introduce ... and application technologies, including utilization of Jatropha Crude Oil and Seedcake; ...
... Calif. , May 24 Epeius Biotechnologies Corporation ... study entitled "A Phase I/II Study of Intravenous Rexin-G and ... Annual Meeting on June 6, 2010 . The presentation ... Chairman of the Cancer Institute and Bioethics Committee-Philippine General Hospital, ...
... BEIJING , May 24 /PRNewswire-Asia-FirstCall/ -- Dehaier ... assembly, marketing and,sale of medical products in China , announced today ... . Dehaier,is authorized to distribute all models of this product. , ... HEYER Cumulus ...
Cached Biology Technology:JatrophaWorld Training Programme Slated for India September 20-24, 2010 2JatrophaWorld Training Programme Slated for India September 20-24, 2010 3JatrophaWorld Training Programme Slated for India September 20-24, 2010 4Tumor-Targeted Nanoparticle-based Gene Delivery Provides Evidence of Therapeutic Vaccination in Patients with Metastatic Cancer (ASCO 2010) 2Tumor-Targeted Nanoparticle-based Gene Delivery Provides Evidence of Therapeutic Vaccination in Patients with Metastatic Cancer (ASCO 2010) 3Dehaier Medical Systems Continues Product Line Expansion. Signs Exclusive Distribution Agreement with HEYER Medical for Respiratory Products in China 2Dehaier Medical Systems Continues Product Line Expansion. Signs Exclusive Distribution Agreement with HEYER Medical for Respiratory Products in China 3Dehaier Medical Systems Continues Product Line Expansion. Signs Exclusive Distribution Agreement with HEYER Medical for Respiratory Products in China 4
...
DryStrip aligners, 4. Category: Electrophoresis Systems & Standards & Reagents, IEF & SDS-PAGE & 2-D Electrophoresis, Multiphor II Kits & Components and Accessories....
...
... atoms at the 3, 3', 4, and ... as an internal standard for the quantification ... PGE1 is the theoretical cyclooxygenase metabolite of ... undetectable in the plasma of normal humans ...
Biology Products: