Climate change is a great challenge not only for Vietnam but also for all of humanity. In which Vietnam is one of the countries most affected. The main cause of climate change is human activities, including construction activities. To actively adapt and respond to possible negative developments. The application of green and clean technologies; Environmentally friendly in the field of construction is becoming an inevitable trend.
Reasons to apply green technology in Vietnam
One of the main causes of climate change is the huge consumption of energy from construction. Studies show that the ratio of the CO2 emission of the construction industry is over 40% in European countries; about 36% in Japan, 28.8% in Taiwan.
According to the US Green Building Council (USGBC), the annual energy use of houses and commercial houses is 39%; emitting 30% of greenhouse gases. Add energy itself to make construction materials; Transporting to the construction and installation site, the total energy consumption is up to 48%. Architect Edward Mazria (Mexico) has shown that construction is the source of emissions of nearly half of global greenhouse gas emissions. The main cause of climate change.
According to a report by the US Energy Information Administration, owners of commercial buildings each year have to spend 107.9 billion dollars to use energy in their buildings. Therefore, in recent years, many energy-saving technologies have been applied to residential architecture and public activities, contributing to a significant reduction of CO2 emissions from buildings. The efficient use of energy not only meets the LEED international standard (of the US Green Building Council) but also brings practical economic efficiency to all buildings.
Vietnam has achieved good results when applying green technology
Following the general trend of the world, over the past time, Vietnam has achieved some remarkable results in putting green technology into construction works. Many buildings have achieved LOTUS certification (of Vietnam Green Building Council) or LEED thanks to the application of green technology, such as Big C Di An Supermarket (Binh Duong); Joint Stock Company of Vietnam Moc Bai (Tay Ninh); Mainetti Office and Factory (Dong Nai); Green United Nations Building (Hanoi); Big C Viet Tri Trade Center (Phu Tho); Big C Commercial Center Ninh Binh (Ninh Binh); EGV textile factory (Hoa Binh) …
However, in order to be proactive in adapting and responding to the negative developments of climate change; then not only big and key constructions but other constructions also need to be “greened”. Therefore, the research, mastery and introduction of modern technologies; Green, clean technology in the world is absolutely necessary.
Here are some potential green technologies; is expected to contribute to the effective resolution of the above problem.
Solar panels installed on the roof and exterior wall tiles not only absorb solar energy but also create aesthetics for the whole project; Helps convert solar energy into direct current. The current is then converted into AC power via the Grid Tie Inverter. Make sure the energy generated from the solar system is in the best mode and provide for household electrical appliances.
Solar batteries help families become more proactive about power supply; contribute to strengthening the implementation of clean and renewable energies. However, the cost of installing large-sized solar cells is still quite high; Not really suitable for Vietnamese families.
HPS coating technology
HPS is an insulating coating designed for both interior and exterior; help limit the internal heat loss of buildings; help increase energy efficiency; reduce CO2 emissions without affecting the structure; General aesthetics of the construction. In particular, this technology also has a waterproof effect; anti-mold and anti-oxidant, helping maintain the most comfortable temperature for the space inside the house; So really ideal for both hot and cold seasons.
For windows that often use HPS-G technology (transparent glass coating technology), help prevent thermal radiation; while interior / exterior walls can be treated using HPS-X technologies; HPS-I respectively. In which HPS-X technology is capable of preventing heat dissipation; HPS-I prevents the movement of hot air.
Insulation capacity of HPS coating technology
Many studies have demonstrated that HPS coating prevents hot air from functioning. Prevent about 99% of ultraviolet rays and 85% of infrared rays; help reduce indoor temperature from 5 to 8oC and reduce about 20-30% of electricity costs for buildings. The product does not cause any harm to the environment; Can be applied on many surfaces of materials such as concrete, wood; Plastic with many types of diverse colors.
Super durable, super light green material
Another trend of green technology in construction is the creation of “green materials” products. Good meet both the needs of basic construction and interior and exterior decoration. Some good examples are eco corrugated sheets made from cellulose organic fibers. Asphalt and acrylic waterproofing methods by the laminated method. Able to withstand extreme weather; or lightweight concrete using technology of autoclaving, not baked; Being able to have sound and heat insulation, helping to reduce about 30% of electricity for cooling system.
Regarding interior decoration products, there are prominent tiles from wood fibers that help regulate the humidity; reduce heat, reduce noise; or 3D Panel decorative panels made from flour of bamboo fiber and cane fiber; Produced and processed using the most modern and recyclable technology.
3D Panel cladding
Class Five+ technology
Saving water is one of the important criteria when it comes to green technology in buildings. Where Class Five + technology is a bright spot. This technology has been effectively applied in Kohler’s new product of Aerodyne toilet; Help save water. The birth of this technology marks a new trend in using water-saving sanitary ware. Because according to the forecast of the World Food and Agriculture Organization, until 2025; Two thirds of the world’s population will live without clean water. In Vietnam, currently, about 20% of the population does not have enough clean water for domestic use.
Application of Class Five+ technology in Aerodyne toilet products
Many people focus on installing water-saving faucets and showers that the daily toilet is silently consuming a large amount of water. Therefore, using sanitary ware applying Class Five + discharge technology; will actively reduce water waste. Able to save 20-30% of the water compared to industry standards. Thus, a house with 4 bathrooms installed toilets using Class Five + technology will save more than 62,000 liters of water per year, a significant number. Besides, the product satisfies 3 main requirements on green technology application; is environmentally friendly, easy to use and highly aesthetic..
Modlet – ThinkEco is a technology invented to eliminate the loss of energy through devices used in offices and houses. A modlet is a chip that tracks the energy consumption; and notify the power consumption via network blowser. Modlets allow users to track energy consumption information; to plan to improve the power consumption. This technology saves 10-20% of electricity on monthly bills; Depends on the type of equipment used for the construction.
Automated DESIGO technology
SIEMENS is a world leader in technology innovation. Among them are technologies that use energy efficiently applied to heating systems; ventilation, air conditioning. Typically, DESIGO automation technology, designed to apply to all types of construction. Allows users to manage power consumption and adjust system arrangement based on changing parameters. Help maximize energy saving stages. DESIGO system allows controlling and controlling online or remotely via network browser through many different types (Microsoft® Windows 7, Vista, XP, Internet Explorer 8).
Vietnam is determined to apply green technology
The features and benefits of applying green technology in construction are undeniable. However, in our country still exist certain difficulties. But with the determination of the whole society; The application of green technology in construction works will become an inevitable trend in the future. At that time, not only key projects; bulky buildings, but also other works are “greening”; contribute to the entire industry and the society to effectively cope with the increasingly complex climate change situation.
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