Category: Latest Tech

This new solar paint creates endless energy from water vapour

This new solar paint creates endless energy from water vapour

Researchers at RMIT University in Melbourne(Australia) have developed an innovative solar paint that produces endless clean energy from water vapour. This revolutionary paint takes up moisture from the air and splits into oxygen and hydrogen. This hydrogen emitted is captured as energy.

solar paint

The paint combines the titanium oxide, a white pigment used in many wall paints with a new compound called synthetic molybdenum-sulphide. This molybdenum-sulphide acts like a silica gel, helping in absorbing moisture and keep the things fresh and dry. Synthetic molybdenum-sulphide acts as a semi-conductor and also catalysis the splitting of water molecules into hydrogen and oxygen.  As a result, hydrogen is captured as a fuel source.

A simple addition of new material to titanium oxide converts a wall into energy harvesting and fuel producing wall.

Researchers who worked on solar paint:

Lead researcher Dr Torben Daeneke, from RMIT University, said: “We found that mixing the compound with titanium oxide particles leads to a sunlight-absorbing paint that produces hydrogen fuel”. Another lead researcher, Distinguished Professor Kourosh Kalantar-zadeh, said “hydrogen – the cleanest source of energy could be used in fuel cells”.

solar paint researchers

Researchers Kourosh Kalantar-zadeh and Torben Daeneke holding samples of a hydrogen-producing paint(solar paint). Image source: RMIT

Towards Future-solar paint:

Although, this paint wouldn’t be available commercially for few years. This paint is effective in a variety of climates from very dry to a very damp environment.

Solar power is not only a way to help save environment but also an economic investment. With Cityrene homes which uses solar and air from water technology you can save approximately 5 lakhs within 5 years. As a result, you can save 1 lakh per year with all the other added advantages.

Isn’t this a huge money to save?  Click this to know about our completed projects.When this kind of new and eco-friendly technologies makes their way to customers, it will move the world to the future of green and sustainability.

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“No more water crisis”-This water cube produces water from thin air using solar energy

“No more water crisis”-This water cube produces water from thin air using solar energy

Today one in ten people lack access to safe drinking water . During summers, most of the cities face water crisis. Here is the solution. This water Cube, made of stainless steel can solve the water crisis.Know more about clean water crisis here

water cube-produces water from thin air

WaterCube by SunGlacier  

Water Cube:

A Dutch inventor named Ap Verheggen invented this amazing machine. Inspired by years travelling through the Arctic, where he saw how climatic change influences the local people. Finally, he started to think how to create water where it is scarce due to the changing environment.

Water cube-cone image

Cone that condenses the water

Then he invented this water cube.The biggest challenge Verheggen and his team face were cooling down the cone to above freezing point without much energy usage. After lots of trials, he finally achieved it with 25 watts of energy.

The process of water cube:

Water Cube -a 20-inch cube with solar cells embedded within that which powers a refrigerator. This refrigerator, in turn, cools off an inverted cone to create condensation.Therefore, producing fresh and safe drinking water.

The small solar panels on the top and sides of the cube produce around 40 watts. The remaining energy stored in the battery fitted will be used during less sunny days. Water production is directly proportionate to the temperature. Especially, this compatible and fascinating machine is suitable for hot and water scarce areas.

“The sun is shining on the solar panels, and they generate electricity that is used to cool a surface,” Verheggen explained. “Water in the air bounces to it, and it starts to condensate. The water drops drip down and collected in a container or glass.”

Surprisingly, Water Cube produced even more water than expected by Verheggen and his team. They are now working on a next-generation of the device with a 10-litre capacity that is smaller and only needs a few solar panels for power.

Future vision:

Verheggen and his team are researching in developing a system that doesn’t have moving parts, to use for open agriculture. Just making to stick them to the ground and they make water.

Check the video for the whole process

WaterCube by SunGlacier – Ap Verheggen on Vimeo.

We, at Cityrene, build homes which could solve the problems faced by people with housing, therefore contributing our part to save the environment. We provide our customers with water from air technology helping them to get pure and safe drinking water.

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Self-healing roads

Self-healing roads

Self-healing roads can heal itself i.e. cracks formed on roads can heal themselves. For both short and long distances, roads play a very important role in the transportation of passengers and goods. Compared to other modes of transportation roadways play a very important role. The global road network is about 16.3 million kilometres. Maintaining the operation of roads without any disrupt is essential.

Cracked roads

Cracked road due to traffic loads

Roads are constantly subject to wear and tear. Each year tonnes of money is spent on the repair of roads. Scientists from Netherlands have invented self-healing roads to solve this problem.

Self-healing roads:

Asphalt, which is the key compound of roads, can expand with heat. It also has some natural properties of healing small cracks which occur due to the traffic. Asphalt can regain its original stiffness and strength with time. If asphalt incorporated with some steel fibres can make magnify the asphalt’s self healing property.Eric Schlangen, a material scientist from Delft university in Netherlands

A road on Netherland is laid using this technology and it is successfully under testing.

Self-healing of cracks in 3 hours

Image showing healing of cracks in 3 hours[Image Source: University of Granada via Research Gate]

How does it works?

Simple induction machine driven inside the roads heats up the steel fibres. The heat from the steel gets transferred to asphalt. Asphalts starts to melt and repair the cracks, therefore avoiding the formation of potholes which occurs when the cracks become large.

Heating process of self-healing roads

                                         Induction heating process of self-healing road [Image Source: University of Granada via ResearchGate]

Induction heating involves the process of using a magnet to rapidly heat up a metal. The process involves sending an alternating current through a series of coils, resulting in an oscillating magnetic field. The magnetic field then heats up molecules within a ferromagnetic metal (a substance that is highly susceptible to magnetisation)- in this case, the steel fibres.

Future of self-healing roads:

Roadways are important and cheapest modes of transport. Roadways keep increasing day by day. With the increase in roadways and increase in traffic, cracks, potholes etc. keeps pounding up with time. The repair cost is higher and preventing the occurrence of cracks becomes quite impossible. This self-healing road can solve the problem. Moreover, these self healing roads can last up to 80 years.

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How to prevent damage of GFRG panels while transporting-Latest technology

How to prevent damage of GFRG panels while transporting-Latest technology

How to prevent damage of GFRG panels while transporting-Latest technology

GFRG(Glass fibre reinforced gypsum) a new alternative technology being used in construction industry, hence lots of difficulties are faced during GFRG construction.

Want to know more about GFRG? click here

One of the major problem faced is damage of panels during transportation. Although stillages are available in the factory for safe transport of panels, it is not practically possible.

Stillages can be used only when the transporting truck have opening at the sides. As most of the trucks are side covered, this becomes nearly impossible. One more problem with stillages is that the rent of stillages is high, which in turn increases the overall cost of the project. To solve this problem we, Cityrene builders have come up with an end cap prototype to prevent the GFRG panels from being damaged.

Problems faced during transport:

1.Stillages usage is not practically possible.

2.Damage of the cavities during transport.

3.Wastage of GFRG material.

What is End cap?

The end cap is a block made of wood or clay that can fit inside the cavities of GFRG panel to prevent it from damage while transporting.

How does it look like:


End cap prototype-latest technology to prevent damage

GFRG cavities shown belowGFRG cavities image- alternative construction technology

Cityrene’s end cap prototype:

We have faced problem each time we transport panels from the GFRG manufacturers to our site. The cavities got damaged while transporting, so we had to cut the damaged portion and then use it for construction. This leads to wastage of GFRG material in huge quantity. Each GFRG panels will cost 1000 per sqm., handling it without care will be a costly mistake. We wanted to overcome this problem.Hence we made a prototype out of clay to place inside the cavities which will be a promising alternative. We kept the dimension little smaller than the cavity size of the GFRG panels so that the end cap fits inside the cavity perfectly.

Here’s the design of the wooden model of the End cap

End cap design done by Cityrene builders-latest technology


Once the GFRG panels has been transported safely, the end caps can be put to use as a furniture or a souvenir by inter-locking them together. This can be a cool and smart add-on in the homes i.e detachable table easy to carry anywhere.

Flexible solar

Flexible solar

Whenever we hear the word Solar, we imagine it to be big, complicated thing. This flexible solar glitter commercially known as Dragon scales developed by scientist Murat Okandan at Sandia National Laboratories changes our view.

Portable, light weight, flexible, miniature, compatible, faster and cheaper deploy makes them unique.  Sandia’s microsystems produces these solar cells. The microcells range in size from 0.00098 to 0.039 inches (25 micrometers to one millimeter) length and from 0.00055 to 0.00079 (14 to 20 micrometers) thick.

Solar glitter

                                                                   Flexible solar glitter-Dragon Scales

Comparison between conventional solar cells and solar glitter:

Conventional silicon solar cells operate with low voltage and high current at the cell and module level, which requires more silver or copper and adds cost. MEPV(Solar glitter) allows high-voltage and low-current configurations and requires 100 times less silicon than conventional solar cells

Another key limitation of this silicon is that if you bend or flex it, it will crack and shatter. This new technology makes it unbreakable also keeping the benefits of high efficiency, high reliable.


  • The small size of the cell makes versatile applications possible,therefore making it feasible for mass production.
  • If integrated into buildings, tents, and potentially clothing, exposed to solar energy would allow users to recharge batteries for phones, cameras, and other electronic devices.
  • Probably satellites and remote-sensing devices will use flexible solar in future.

“These solar glitters will help solar energy to become cost competitive and will bring drastic change in near future”

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Eco friendly urinals – Incredible Idea

Eco friendly urinals – Incredible Idea

Sustainable urinals known as Uttrottoit,designed by Faltazi company a combination of flower pots ,organic and eco-friendly materials are out on the streets and ready to be tested in Paris.

eco friendly urinals

Image Courtesy: Faltazi

Sustainable urinals installation:

This urinal consists of flower pots with a block of wooden chips, sawdust or straw and an electronic monitoring system. Uritrottoir, made of a sturdy material,coated with anti-graffiti paint and it has a mini-parterre on top.These materials are recyclable absorbing material, rich in carbon content which makes the device odour free.

SNCF public railways installed Uritrottoir  on one of the wet spots of the city, the Gare de Lyon train yard.

making of sustainable,eco-friendly urinals

Image Courtesy: Faltazi

These devices come in 2 sizes, first one is for 600 users and the second is for 300 users. The price of this eco-urinal is estimated at €3,000. Time will show whether the new-age urinals could completely replace their old, grey and overflow-prone counterparts.

When the absorbing material gets filled up,the electronic monitoring system send signals to the attender.Hence,he can collect the absorbing material and  convert it into compost.It is then used as fertiliser for public gardens, parks, or even just the flowers growing out the top of the urinal.

Many other designers are working to solve the problem of public urination. For example: Nether land-based company Urilift International BV. They have introduced elevator-like urinals which rises from underground with a hydraulic lift.

“we knew there was a big demand for a solution, so we’ve come up with one. People are laughing, many of them are amazed, but most agree that it’s a good idea to test out-Victor Massip “

Here’s how it works:working of sustainable urinals

Image Courtesy: Faltazi

Eco-friendly and cost effective designs like this will improve health and sanitation that help to make the world a better place.
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Solar Roads – The Future

Solar Roads – The Future

Solar roads is a promising alternative because solar is being used everywhere, even in parking lots and water enclosures. So why not roads?

Solar roadway construction company founded by Scott and Julie Brusaw of Sandpoint, Idaho in 2006 is into constructing solar roadways which is a promising alternative for the asphalt road. Julie Brusaw came up with the idea of solar roads of her concern to the environment and Scott Brusaw used his engineering skills to make her dream come true. In 2010 they built a prototype and tested it successfully.

These solar roads are built with LED lights and a microprocessor. LED lights produce heat to melt the accumulated snow and ice. The microprocessor used allows controlling the vehicles with a control station.

How do solar roads look like?

  • 4.39 square feet hexagonal shaped
  • roughed surface
  • glass tempered which can withstand a semi-truck.

solar roads

A closer look of solar road panels. Photo credit: Solar Roadways

Normandy 2014 by Colas Anglo-French company in France laid the World’s first solar highway , . The main problem of this roadways is that it is extravagant.

India can have solar roads as it has the world’s second largest network of roads,if we make necessary research to cut down the cost.Since we have a problem with electricity in most of the towns and cities, this will be an assured future alternative.

How it works: 

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