Surabaya, as the second largest city in Indonesia, is located in the eastern part of Java Island and has a tropical monsoon climate. It experiences high temperatures and high humidity throughout the year, with heavy rainfall during the rainy season and high air humidity. Additionally, as an important industrial and port hub, the city is subject to certain levels of industrial dust and marine salt fog pollution. The ERV ventilation system, leveraging its core advantages of energy recovery, efficient air exchange, and humidity regulation, has extremely high adaptability in various scenarios in this region.
First, there are high-density residential buildings. Whether it's the fully-furnished apartments in the city center, the renovated housing in old neighborhoods, or the newly-built residences in surrounding satellite cities, these buildings generally have strong sealing properties. During summer, relying on air conditioners for cooling is prone to introducing humid and hot air and dust through opening windows, resulting in excessive indoor humidity and soaring energy consumption. The ERV system can continuously replace fresh air while recovering the cooling capacity of the air conditioning exhaust, significantly reducing cooling energy consumption. At the same time, it filters out salt particles and dust from the outside, solving problems such as dampness and mold in bathrooms and residual cooking fumes in kitchens. It is particularly suitable for small-sized residences and densely-populated living communities, enhancing living comfort while meeting residents' energy-saving needs.
The next are public buildings such as schools and hospitals. classrooms and libraries in schools are densely populated, which makes it easy for carbon dioxide concentration to exceed the standard and the air to become polluted. This affects students' learning efficiency and health. Meanwhile， the wards and examination rooms in hospitals have strict requirements for air cleanliness and stability of temperature and humidity. They need to avoid the risk of cross-infection. TheERV system can ensure an adequate supply of fresh air while reducing energy loss， maintaining the stability of the indoor environment， and filtering out pollutants in the air. It creates a healthy and safe space for teachers， students， and patients. The demand for cost control in these public places can also be met through the energy-saving feature of theERV， reducing long-term expenses for air conditioning and heating.
Next is the industrial plants and port infrastructure. Surabaya is a major industrial center with developed industries such as shipbuilding, petrochemicals, and textiles. The related plants need to strictly control the indoor temperature and humidity to ensure production processes and product quality. For example, the textile workshop needs to avoid humidity fluctuations that affect the quality of the fabric, while the electronic component workshop needs to prevent dust and salt fog from corroding the equipment. At the same time, the cold chain storage and logistics center of the port need to maintain a constant temperature and humidity environment to preserve the goods. The ERV system can recover energy during ventilation, reduce the load of the air conditioning system, effectively filter industrial dust and marine salt fog, and discharge the exhaust gas and odors produced during the production process, helping enterprises meet production hygiene standards and improve production efficiency.
There are also commercial and cultural tourism buildings such as hotels and shopping malls. As a regional tourism and commercial center, Siwei has a high flow of people in its hotel rooms, shopping centers, and dining areas. During summer, the use of air conditioners is prolonged, making the indoor environment prone to being stuffy and having unpleasant odors. Moreover, hotels in the coastal area also face the risk of salt fog damaging equipment. The ERV system can quickly replace the polluted indoor air, remove the odors from guest rooms and the cooking fumes in the dining areas. It reduces operating energy consumption through energy recovery and enhances the guest experience and consumption. It is particularly suitable for high-end hotels and large commercial complexes located in the city center and coastal tourist areas, helping businesses optimize operating costs and enhance market competitiveness.
Finally, there are the office buildings and corporate workplaces in the central business district. In the business area of Siwu, a large number of enterprises and institutions are concentrated. The office equipment is dense and people stay there for a long time. The indoor air is prone to become polluted due to equipment heat dissipation and personnel activities. The ERV system can continuously supply clean fresh air, improve the office environment, enhance employees' work efficiency, and at the same time recover the cooling capacity of the air conditioning, reducing the overall energy consumption of the office building. This is in line with the development concept of modern green office for enterprises and is suitable for the modern office scenarios of the business district.
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