Flexible arrangement of mobile fans for ventilation and cooling in a community activity conference room in Wenzhou

This project is located in Wenzhou, a city with unique climate characteristics. Although it faces the East China Sea to the east and has a "natural coolness" brought by ocean regulation (Wenzhou has milder summers compared to inland cities in Zhejiang, with only 22 days of high temperatures per year in the past 30 years, and a good air quality rate of over 92%, making it a climate livable city), it is still affected by the subtropical maritime monsoon climate. In summer, it still has the characteristics of high humidity and obvious stuffiness, especially for color steel roof buildings that store heat severely under direct sunlight. As the "nerve endings" of grassroots government governance, community institutions carry important functions of connecting and serving the masses, and are the "happy relay stations" at the doorstep of ordinary people. As an important place for community workers to conduct daily office work, residents to discuss and engage in recreational activities, the environmental quality of the activity conference room directly affects the temperature of grassroots services and residents' sense of gain.

The event conference room adopts a color steel roof brick wall structure with average sealing. In summer, the indoor heat accumulates under direct sunlight, seriously affecting the comfort of use. The designers of Ruifeng Environmental Protection Refrigeration Solution conducted in-depth on-site investigations, combined with the climate characteristics of Wenzhou (coexistence of ocean regulation and high humidity), building structural characteristics (fast thermal conductivity and insufficient sealing of color steel roof), spatial usage mode (variable personnel flow, diverse activity forms), equipment investment cost (community funds need to be carefully calculated), and convenient maintenance in the later stage, and other multiple factors. They innovatively adopted a combination layout plan of multiple mobile centrifugal air coolers and mobile industrial grade large fans. This design is mainly based on the following considerations:

1. The uncertainty of personnel flow determines the superiority of mobile models. The community activity conference room is frequently used but the number of personnel fluctuates greatly - daily work meetings may only have more than ten people, while resident activities and holiday gatherings may accommodate dozens of people. Mobile devices can be flexibly increased or decreased according to the actual number of people present, without the need to equip fixed equipment for peak loads, resulting in idle resources.

2. The relatively open spatial characteristics make it suitable to adopt a combination of local cooling and air flow promotion. The sealing performance of the color steel roof brick structure is average. If traditional air conditioning is used, the air conditioning is prone to loss, resulting in energy waste. The air cooler utilizes the physical principle of "water evaporation and heat absorption" (when the fan is running, the negative pressure inside the machine makes the air flow through the moist curtain, and the water evaporates and absorbs heat, which can make the outlet air temperature 5-12 ℃ lower than outdoors), with both cooling and humidification functions, and the fresh cold air sent out is as comfortable as natural wind; Industrial grade large fans use permanent magnet stepless speed regulation technology to drive three-dimensional air flow with large diameter fan blades, accelerating the evaporation of sweat on the surface of the human body and taking away heat. The combination of the two not only achieves effective cooling, but also avoids the discomfort of traditional air conditioning being closed.

3. High air volume coverage ensures improved physical sensation in crowded areas. Centrifugal air coolers have the characteristics of high air pressure and long air supply. Industrial grade fans can cover an area of several hundred square meters per unit. When the two work together, they can form a continuous air flow in crowded areas, effectively dispersing the accumulation of heat and humidity. More importantly, the air cooler continuously introduces fresh outdoor air, maintaining indoor air quality (different from the traditional air conditioning's internal circulation mode, the air cooler uses positive pressure air supply to ensure that the air is always fresh), ensuring the physical and mental health and environmental quality of the gathered people, and reflecting the community's humanistic care for residents.

4. Mobile design provides maximum flexibility in space utilization. Compared to fixed ventilation and cooling equipment that requires professional installation, pipeline layout, and is difficult to relocate, mobile fans are plug and play and do not require installation - they can be pushed to designated locations and powered on when needed, and can be easily removed and stored when vacant, without affecting the diverse layout of community activity rooms. Whether it's adjusting the layout of the conference room or temporarily using the venue for dance rehearsals, children's activities, or residents' meetings, it can be changed at will.

5. Low cost operation saves community expenses. The energy consumption of the air cooler is only 1/8 to 1/10 of that of traditional compression air conditioners, and there is no need for complex installation engineering costs; Industrial fans have low power per unit, large coverage area, and extremely low operating costs. In the context of the need for careful budgeting of community funds, this solution not only solves practical problems, but also avoids the hidden worries of excessive investment in fixed equipment and heavy maintenance burden in the later stage. After the equipment was put into use, the stuffiness and heat in the activity room were significantly eliminated, and the comfort level of personnel was greatly improved. Community workers and residents gave feedback that they could stay, sit down, and chat happily. The small environmental improvement conveyed the government's intention and warmth towards the construction of grassroots service positions.

Although this is a community activity conference room layout project, the demonstration effect of Ruifeng Company has radiated to similar scenarios, such as village committee activity rooms, enterprise employee homes, elderly care service centers, temporary gathering places, outdoor dining areas, industrial visit passages, etc. These spaces generally have characteristics such as diverse building structures, flexible usage modes, limited investment budgets, and urgent ventilation and cooling needs. This project fully demonstrates the comprehensive selection ability of Ruifeng Environmental Protection Refrigeration for special spatial structures and special usage scenarios, as well as the ability to design refined solutions that consider both effectiveness and cost based on actual needs. Regardless of the size of the space or the complexity of the structure, we always adhere to a professional perspective to create a "natural, environmentally friendly, comfortable, and economical" ventilation and cooling experience for our customers.