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
COMPANY PROFILE
Skewed figures
In the village of Mevagissey in southwest England the housing stock has doubled in the last century while the number of residents is half the historic high. The village's Neighbourhood Development Plan states that 26% of homes are holiday retreats. Prices are high, averaging around £300,000, £50,000 more than the Cornish average of £250,000. The local average wage is £15,458.
Test
Director: S Sashikanth
Cast: Nayanthara, Siddharth, Meera Jasmine, R Madhavan
Star rating: 2/5
COMPANY%20PROFILE
Key facilities
- Olympic-size swimming pool with a split bulkhead for multi-use configurations, including water polo and 50m/25m training lanes
- Premier League-standard football pitch
- 400m Olympic running track
- NBA-spec basketball court with auditorium
- 600-seat auditorium
- Spaces for historical and cultural exploration
- An elevated football field that doubles as a helipad
- Specialist robotics and science laboratories
- AR and VR-enabled learning centres
- Disruption Lab and Research Centre for developing entrepreneurial skills
The bio
Date of Birth: April 25, 1993
Place of Birth: Dubai, UAE
Marital Status: Single
School: Al Sufouh in Jumeirah, Dubai
University: Emirates Airline National Cadet Programme and Hamdan University
Job Title: Pilot, First Officer
Number of hours flying in a Boeing 777: 1,200
Number of flights: Approximately 300
Hobbies: Exercising
Nicest destination: Milan, New Zealand, Seattle for shopping
Least nice destination: Kabul, but someone has to do it. It’s not scary but at least you can tick the box that you’ve been
Favourite place to visit: Dubai, there’s no place like home
How to help or find other cats to adopt
There are many that often look for volunteers or other types of assistance. They include:
Rescue Animals in Need United Arab Emirates
Real estate tokenisation project
Dubai launched the pilot phase of its real estate tokenisation project last month.
The initiative focuses on converting real estate assets into digital tokens recorded on blockchain technology and helps in streamlining the process of buying, selling and investing, the Dubai Land Department said.
Dubai’s real estate tokenisation market is projected to reach Dh60 billion ($16.33 billion) by 2033, representing 7 per cent of the emirate’s total property transactions, according to the DLD.
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Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.
Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.
“Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.
Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.
“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.
Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.
From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.
Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.
BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.
Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.
Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.
“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.
Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.
“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.
“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”
The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”
Tightening the screw on rogue recruiters
The UAE overhauled the procedure to recruit housemaids and domestic workers with a law in 2017 to protect low-income labour from being exploited.
Only recruitment companies authorised by the government are permitted as part of Tadbeer, a network of labour ministry-regulated centres.
A contract must be drawn up for domestic workers, the wages and job offer clearly stating the nature of work.
The contract stating the wages, work entailed and accommodation must be sent to the employee in their home country before they depart for the UAE.
The contract will be signed by the employer and employee when the domestic worker arrives in the UAE.
Only recruitment agencies registered with the ministry can undertake recruitment and employment applications for domestic workers.
Penalties for illegal recruitment in the UAE include fines of up to Dh100,000 and imprisonment
But agents not authorised by the government sidestep the law by illegally getting women into the country on visit visas.
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Starfield
The National's picks
4.35pm: Tilal Al Khalediah
5.10pm: Continous
5.45pm: Raging Torrent
6.20pm: West Acre
7pm: Flood Zone
7.40pm: Straight No Chaser
8.15pm: Romantic Warrior
8.50pm: Calandogan
9.30pm: Forever Young
While you're here
Killing of Qassem Suleimani
National Editorial: Suleimani has been killed, now we must de-escalate
Mina Al Oraibi: Air strike casts a long shadow over the decade ahead
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5 of the most-popular Airbnb locations in Dubai
Bobby Grudziecki, chief operating officer of Frank Porter, identifies the five most popular areas in Dubai for those looking to make the most out of their properties and the rates owners can secure:
• Dubai Marina
The Marina and Jumeirah Beach Residence are popular locations, says Mr Grudziecki, due to their closeness to the beach, restaurants and hotels.
Frank Porter’s average Airbnb rent:
One bedroom: Dh482 to Dh739
Two bedroom: Dh627 to Dh960
Three bedroom: Dh721 to Dh1,104
• Downtown
Within walking distance of the Dubai Mall, Burj Khalifa and the famous fountains, this location combines business and leisure. “Sure it’s for tourists,” says Mr Grudziecki. “Though Downtown [still caters to business people] because it’s close to Dubai International Financial Centre."
Frank Porter’s average Airbnb rent:
One bedroom: Dh497 to Dh772
Two bedroom: Dh646 to Dh1,003
Three bedroom: Dh743 to Dh1,154
• City Walk
The rising star of the Dubai property market, this area is lined with pristine sidewalks, boutiques and cafes and close to the new entertainment venue Coca Cola Arena. “Downtown and Marina are pretty much the same prices,” Mr Grudziecki says, “but City Walk is higher.”
Frank Porter’s average Airbnb rent:
One bedroom: Dh524 to Dh809
Two bedroom: Dh682 to Dh1,052
Three bedroom: Dh784 to Dh1,210
• Jumeirah Lake Towers
Dubai Marina’s little brother JLT resides on the other side of Sheikh Zayed road but is still close enough to beachside outlets and attractions. The big selling point for Airbnb renters, however, is that “it’s cheaper than Dubai Marina”, Mr Grudziecki says.
Frank Porter’s average Airbnb rent:
One bedroom: Dh422 to Dh629
Two bedroom: Dh549 to Dh818
Three bedroom: Dh631 to Dh941
• Palm Jumeirah
Palm Jumeirah's proximity to luxury resorts is attractive, especially for big families, says Mr Grudziecki, as Airbnb renters can secure competitive rates on one of the world’s most famous tourist destinations.
Frank Porter’s average Airbnb rent:
One bedroom: Dh503 to Dh770
Two bedroom: Dh654 to Dh1,002
Three bedroom: Dh752 to Dh1,152
Moon Music
Artist: Coldplay
Label: Parlophone/Atlantic
Number of tracks: 10
Rating: 3/5
The White Lotus: Season three
Creator: Mike White
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Director: Kangana Ranaut
Stars: Kangana Ranaut, Anupam Kher, Shreyas Talpade, Milind Soman, Mahima Chaudhry
Rating: 2/5
Anghami
Started: December 2011
Co-founders: Elie Habib, Eddy Maroun
Based: Beirut and Dubai
Sector: Entertainment
Size: 85 employees
Stage: Series C
Investors: MEVP, du, Mobily, MBC, Samena Capital
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The specs
Engine: Four electric motors, one at each wheel
Power: 579hp
Torque: 859Nm
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Group A: Palmeiras, Porto, Al Ahly, Inter Miami.
Group B: Paris Saint-Germain, Atletico Madrid, Botafogo, Seattle.
Group C: Bayern Munich, Auckland City, Boca Juniors, Benfica.
Group D: Flamengo, ES Tunis, Chelsea, (Leon banned).
Group E: River Plate, Urawa, Monterrey, Inter Milan.
Group F: Fluminense, Borussia Dortmund, Ulsan, Mamelodi Sundowns.
Group G: Manchester City, Wydad, Al Ain, Juventus.
Group H: Real Madrid, Al Hilal, Pachuca, Salzburg.
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On Women's Day
Dr Nawal Al-Hosany: Why more women should be on the frontlines of climate action
Shelina Janmohamed: Why shouldn't a spouse be compensated fairly for housework?
Samar Elmnhrawy: How companies in the Middle East can catch up on gender equality
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The Brutalist
Director: Brady Corbet
Stars: Adrien Brody, Felicity Jones, Guy Pearce, Joe Alwyn
Rating: 3.5/5
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Cast: Vicky Kaushal, Akshaye Khanna, Diana Penty, Vineet Kumar Singh, Rashmika Mandanna
Rating: 1/5
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Specs
Engine: Dual-motor all-wheel-drive electric
Range: Up to 610km
Power: 905hp
Torque: 985Nm
Price: From Dh439,000
Available: Now
Match info
Karnataka Tuskers 110-3
J Charles 35, M Pretorius 1-19, Z Khan 0-16
Deccan Gladiators 111-5 in 8.3 overs
K Pollard 45*, S Zadran 2-18
Playing records of the top 10 in 2017
How many games the top 10 have undertaken in the 2017 ATP season
1. Rafael Nadal 58 (49-9)
2. Andy Murray 35 (25-10)
3. Roger Federer 38 (35-3)
4. Stan Wawrinka 37 (26-11)
5. Novak Djokovic 40 (32-8)
6. Alexander Zverev 60 (46-14)
7. Marin Cilic 43 (29-14)
8. Dominic Thiem 60 (41-19)
9. Grigor Dimitrov 48 (34-14)
10. Kei Nishikori 43 (30-13)