ABU DHABI // Masdar Institute scientists have published a breakthrough research into more efficient solar power – and they will not have to look far for the raw material needed.
Using sand, they hope to drive concentrated solar power technology to compete with the traditional photovoltaic method.
Named “Sandstock”, the research published at the Solar Power and Chemical Energy Systems Conference in South Africa yesterday, showed sand can withstand temperatures of up to 1,000°C.
Concentrated solar power, or CSP, uses mirrors to reflect heat from the sun to one point, most typically a tower filled with a material capable of storing heat and then converting it into electricity.
CSP’s benefit is that the energy derived is easy to store, but in recent years it has lost out to the more popular photovoltaics, which is more cost-efficient.
That may now change.
“Sand is really always a drawback in this country but in this project we wanted to use it as an advantage because it can withstand very high temperature, and of course it is very cheap here,” said Dr Nicolas Calvet, assistant professor of mechanical and materials engineering, and guide for the research project.
Dr Calvet said that scientists and PhD students working on CSP research were always looking for materials capable of withstanding higher temperatures.
“The higher you can push your temperature, the more efficient your plant will be in generating electricity,” he said. “With sand we can push it to 1,000°C and it’s available.”
CSP is significantly more efficient than photovoltaics at storing energy after sunset, and the Masdar researchers are finding potential in sand’s ability to store energy.
“Basically you heat up the sand during the day, and at night when you don’t have sun you can use the heat from the sand to continue to generate energy, which is not possible with PV because it is too expensive to store at this moment,” Dr Calvet said.
The limit for conventional CSP systems is capped at 600°C because molten salt, the most common material, begins to degrade beyond that point. Sand can store it at 400°C higher than molten salts.
“PV is more popular because of more than 40 years of research, and the Chinese entering the market and driving prices down,” Dr Calvet said.
“If you want to make CSP more competitive you must significantly reduce the cost.”
The main costs for CSP are the reflective material, and whatever is used for heat transfer and storage. Dr Calvet and his students are using sand for the last two steps at almost no cost.
“When you build a CSP plant you need to import usually several thousand tonnes of molten salts from Chile,” he said.
“With this concept you can just build your plant in the desert and you don’t have to bring any other material, you have it on site.”
Dr Behjat Al Yousuf, interim provost at the Masdar Institute of Science and Technology, said: “The research success of the Sandstock project illustrates the strength of our research and its local relevance.”
nalwasmi@thenational.ae
TOUCH RULES
Touch is derived from rugby league. Teams consist of up to 14 players with a maximum of six on the field at any time.
Teams can make as many substitutions as they want during the 40 minute matches.
Similar to rugby league, the attacking team has six attempts - or touches - before possession changes over.
A touch is any contact between the player with the ball and a defender, and must be with minimum force.
After a touch the player performs a “roll-ball” - similar to the play-the-ball in league - stepping over or rolling the ball between the feet.
At the roll-ball, the defenders have to retreat a minimum of five metres.
A touchdown is scored when an attacking player places the ball on or over the score-line.
The bio
Favourite book: Peter Rabbit. I used to read it to my three children and still read it myself. If I am feeling down it brings back good memories.
Best thing about your job: Getting to help people. My mum always told me never to pass up an opportunity to do a good deed.
Best part of life in the UAE: The weather. The constant sunshine is amazing and there is always something to do, you have so many options when it comes to how to spend your day.
Favourite holiday destination: Malaysia. I went there for my honeymoon and ended up volunteering to teach local children for a few hours each day. It is such a special place and I plan to retire there one day.
CHATGPT%20ENTERPRISE%20FEATURES
%3Cp%3E%E2%80%A2%20Enterprise-grade%20security%20and%20privacy%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Unlimited%20higher-speed%20GPT-4%20access%20with%20no%20caps%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Longer%20context%20windows%20for%20processing%20longer%20inputs%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Advanced%20data%20analysis%20capabilities%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Customisation%20options%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Shareable%20chat%20templates%20that%20companies%20can%20use%20to%20collaborate%20and%20build%20common%20workflows%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Analytics%20dashboard%20for%20usage%20insights%3C%2Fp%3E%0A%3Cp%3E%E2%80%A2%20Free%20credits%20to%20use%20OpenAI%20APIs%20to%20extend%20OpenAI%20into%20a%20fully-custom%20solution%20for%20enterprises%3C%2Fp%3E%0A
MATCH INFO
Fixture: Thailand v UAE, Tuesday, 4pm (UAE)
TV: Abu Dhabi Sports
UPI facts
More than 2.2 million Indian tourists arrived in UAE in 2023
More than 3.5 million Indians reside in UAE
Indian tourists can make purchases in UAE using rupee accounts in India through QR-code-based UPI real-time payment systems
Indian residents in UAE can use their non-resident NRO and NRE accounts held in Indian banks linked to a UAE mobile number for UPI transactions
COMPANY%20PROFILE
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Alaan%3Cbr%3E%3Cstrong%3EStarted%3A%3C%2Fstrong%3E%202021%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Parthi%20Duraisamy%20and%20Karun%20Kurien%3Cbr%3E%3Cstrong%3ESector%3A%3C%2Fstrong%3E%20FinTech%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%3C%2Fstrong%3E%20%247%20million%20raised%20in%20total%20%E2%80%94%20%242.5%20million%20in%20a%20seed%20round%20and%20%244.5%20million%20in%20a%20pre-series%20A%20round%3Cbr%3E%3Cbr%3E%3C%2Fp%3E%0A
Dubai Bling season three
Cast: Loujain Adada, Zeina Khoury, Farhana Bodi, Ebraheem Al Samadi, Mona Kattan, and couples Safa & Fahad Siddiqui and DJ Bliss & Danya Mohammed
Rating: 1/5
SPEC%20SHEET%3A%20APPLE%20IPHONE%2014
%3Cp%3E%3Cstrong%3EDisplay%3A%3C%2Fstrong%3E%C2%A06.1%22%20Super%20Retina%20XDR%20OLED%2C%202532%20x%201170%2C%20460ppi%2C%20HDR%2C%20True%20Tone%2C%20P3%2C%201200%20nits%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EProcessor%3A%3C%2Fstrong%3E%C2%A0A15%20Bionic%2C%206-core%20CPU%2C%205-core%20GPU%2C%2016-core%20Neural%20Engine%C2%A0%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EMemory%3A%3C%2Fstrong%3E%C2%A06GB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ECapacity%3A%3C%2Fstrong%3E%C2%A0128%2F256%2F512GB%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EPlatform%3A%3C%2Fstrong%3E%C2%A0iOS%2016%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EMain%20camera%3A%3C%2Fstrong%3E%C2%A0Dual%2012MP%20main%20(f%2F1.5)%20%2B%2012MP%20ultra-wide%20(f%2F2.4)%3B%202x%20optical%2C%205x%20digital%3B%20Photonic%20Engine%2C%20Deep%20Fusion%2C%20Smart%20HDR%204%2C%20Portrait%20Lighting%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EMain%20camera%20video%3A%3C%2Fstrong%3E%C2%A04K%20%40%2024%2F25%2F3060fps%2C%20full-HD%20%40%2025%2F30%2F60fps%2C%20HD%20%40%2030fps%3B%20HD%20slo-mo%20%40%20120%2F240fps%3B%20night%2C%20time%20lapse%2C%20cinematic%2C%20action%20modes%3B%20Dolby%20Vision%2C%204K%20HDR%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EFront%20camera%3A%3C%2Fstrong%3E%C2%A012MP%20TrueDepth%20(f%2F1.9)%2C%20Photonic%20Engine%2C%20Deep%20Fusion%2C%20Smart%20HDR%204%3B%20Animoji%2C%20Memoji%3B%20Portrait%20Lighting%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EFront%20camera%20video%3A%3C%2Fstrong%3E%204K%20%40%2024%2F25%2F3060fps%2C%20full-HD%20%40%2025%2F30%2F60fps%2C%20HD%20slo-mo%20%40%20120fps%3B%20night%2C%20time%20lapse%2C%20cinematic%2C%20action%20modes%3B%20Dolby%20Vision%2C%204K%20HDR%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EBattery%3A%3C%2Fstrong%3E%C2%A03279%20mAh%2C%C2%A0up%20to%2020h%20video%2C%2016h%20streaming%20video%2C%2080h%20audio%3B%20fast%20charge%20to%2050%25%20in%2030m%3B%20MagSafe%2C%20Qi%20wireless%20charging%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EConnectivity%3A%3C%2Fstrong%3E%C2%A0Wi-Fi%2C%20Bluetooth%205.3%2C%20NFC%20(Apple%20Pay)%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EBiometrics%3A%3C%2Fstrong%3E%20Face%20ID%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EI%2FO%3A%3C%2Fstrong%3E%C2%A0Lightning%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ECards%3A%3C%2Fstrong%3E%C2%A0Dual%20eSIM%20%2F%20eSIM%20%2B%20SIM%20(US%20models%20use%20eSIMs%20only)%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EColours%3A%3C%2Fstrong%3E%C2%A0Blue%2C%20midnight%2C%20purple%2C%20starlight%2C%20Product%20Red%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EIn%20the%20box%3A%3C%2Fstrong%3E%C2%A0iPhone%2014%2C%20USB-C-to-Lightning%20cable%2C%20one%20Apple%20sticker%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EPrice%3A%3C%2Fstrong%3E%C2%A0Dh3%2C399%20%2F%20Dh3%2C799%20%2F%20Dh4%2C649%3C%2Fp%3E%0A
The specs
Engine: 3.9-litre twin-turbo V8
Power: 620hp from 5,750-7,500rpm
Torque: 760Nm from 3,000-5,750rpm
Transmission: Eight-speed dual-clutch auto
On sale: Now
Price: From Dh1.05 million ($286,000)
Killing of Qassem Suleimani
UAE currency: the story behind the money in your pockets
A meeting of young minds
The 3,494 entries for the 2019 Sharjah Children Biennial come from:
435 – UAE
2,000 – China
808 – United Kingdom
165 – Argentina
38 – Lebanon
16 – Saudi Arabia
16 – Bangladesh
6 – Ireland
3 – Egypt
3 – France
2 – Sudan
1 – Kuwait
1 – Australia
THE BIO
Favourite book: ‘Purpose Driven Life’ by Rick Warren
Favourite travel destination: Switzerland
Hobbies: Travelling and following motivational speeches and speakers
Favourite place in UAE: Dubai Museum
Specs
Engine: 51.5kW electric motor
Range: 400km
Power: 134bhp
Torque: 175Nm
Price: From Dh98,800
Available: Now
SERIES INFO
Cricket World Cup League Two
Nepal, Oman, United States tri-series
Tribhuvan University, Kathmandu
Fixtures
Wednesday February 5, Oman v Nepal
Thursday, February 6, Oman v United States
Saturday, February 8, United States v Nepal
Sunday, February 9, Oman v Nepal
Tuesday, February 11, Oman v United States
Wednesday, February 12, United States v Nepal
Table
The top three sides advance to the 2022 World Cup Qualifier.
The bottom four sides are relegated to the 2022 World Cup playoff
1 United States 8 6 2 0 0 12 0.412
2 Scotland 8 4 3 0 1 9 0.139
3 Namibia 7 4 3 0 0 8 0.008
4 Oman 6 4 2 0 0 8 -0.139
5 UAE 7 3 3 0 1 7 -0.004
6 Nepal 0 0 0 0 0 0 0
7 PNG 8 0 8 0 0 0 -0.458