2019.02.26

R&D WORKS Vol. 02

Task Desk

One unit per person. The idea of personal air conditioning.

R&D WORKS TOP

With the current emphasis on diversity in work styles and health consciousness, the idea of individuals being able to choose their work environment is gaining attention. However, when it comes to thermal environments where the air is connected, individual settings are not easy. The "Task Desk" is a technology that overcomes this hurdle. Air conditioning has gone beyond the constraints of room units, making it possible for individuals to choose their own thermal environment.

A desk where you can individually change the thermal environment using three types of personal air conditioning.
There are two types of lighting: task lights that illuminate the area at hand, and upper lights that illuminate the ceiling to create a sense of brightness throughout the space.

Work style where individuals choose their own environment

Throughout its history, air conditioning technology has pursued environmental control of temperature, humidity, ventilation, etc., treating each room as a single unit. In the case of an office, all workers must accept the same environment settings, even if each person has different preferences, metabolic rates, and physical conditions. The difficulty of setting the air conditioner in the summer, when people who are sensitive to heat and people who are sensitive to cold are in the same room, is a commonly-heard topic. Meanwhile, in recent years, there has been a shift from uniform, homogeneous working to diverse work styles, and there has been a trend toward health care in the workspace where we spend a lot of time, and there is a demand for work environments that individuals can select and adjust individually. So, to what extent can air conditioning be adapted to the needs of each individual?

Built-in air conditioning in your desk

The "Task Desk" was born from such a background. As the name suggests, an air conditioning function is added to each desk. It incorporates the three elements that create a hot environment: airflow, contact, and radiation. The "airflow type" blows cool air from the front panel. A small air conditioner is built into the front panel of the desk. Air is sucked in from the bottom of the panel, passes through a cooling coil to cool, and cool air is blown out at head height. The amount of airflow can be changed by adjusting the two fans. The amount of airflow is carefully adjusted, and the user can adjust the amount of airflow that is optimal for them with the volume knob, from "air blowing around the face" to "air gently falling on the hands." The "contact type" cools the desk top itself. It cools the arms directly, so it is effective when you want to cool down quickly, such as when you return from going out. The airflow type and contact type only operate for cooling in the summer. The "radiation type" is installed on the back of the top plate, the lower radiation panel, and can be used all year round for cooling in the summer and heating in the winter. The aim was to achieve the effect of heating the feet, which tend to get cold especially in winter, without any airflow, just like a kotatsu.

Energy saving and high efficiency

Individual air conditioning is often thought to be costly, but this system was designed to save energy and provide high thermal efficiency. The refrigerant for the cooling coils, contact panels, and radiant panels installed in the desks is cold water that flows through underfloor piping in OA floors. This is drawn into each desk, and by using cold water in close proximity to the human body, thermal efficiency is significantly improved compared to conventional systems. In winter, it is possible to switch to a system that runs hot water and operates only the radiant panels. In addition, this task desk is designed to be used in conjunction with a system that cools and heats the entire room. The temperature setting for the entire room can be relaxed, and the scale and operation of the air conditioning equipment can be kept small, which reduces total costs.

[Patent registration] Registration number: Patent No. 6414891, Patent No. 6493997, Patent No. 6536970, Patent No. 6586766


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