JPH06174261A - Air heating/cooling method - Google Patents

Abstract

PURPOSE:To enhance thermal efficiency and prevent dew condensation from occurring by performing thermal transfer with the aid of air and carrying out space heating/cooling in a room by means of raditation and convection. CONSTITUTION:Air from an air-conditioner 2, whose temperature is higher or lower than an air temperature in a room 1, is allowed to circulate inside a space 3 in a ceiling plenum to perform raidant spade heating/cooling. Part of dehumidified and dried air brown from the air-conditioner 2 is supplied into the room 1 through the suitable number of small holes 5 provided in a ceiling- plane 4. Accordingly, quick space heating/cooling is made possible in the same way as an air convection method by performing radiant space heating/cooling while blowing and supplying part of the air into the room 1. Further, thermal efficiency for space heating/cooling in the room 1 is enhanced by a synergetic effect with radiation. Moreover, humidity control in the room 1 becomes easier by blowing and supplying the dried air, and dew condensation can be effectively prevented from occurring on the ceiling-plane 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air heating / cooling method. More specifically, the present invention relates to a new heating / cooling method that enables comfortable and natural heating / cooling, has excellent thermal efficiency, and has good dew condensation prevention.

[0002]

2. Description of the Related Art Conventionally, various heating and cooling systems have been developed and put into practical use as means for realizing a comfortable living space. These heating / cooling systems are roughly divided into those using an air convection method in which warm air or cold air from an air conditioner is directly blown into the room, and heating medium circulation paths and heaters are installed on the floor, ceiling, wall surfaces, etc. for heating. Or a radiant method of cooling by circulating the refrigerant.

The convection type among these is effective for rapid heating and cooling, but it is difficult to make the room temperature appropriate, and even if it is effective in a closed space, heat loss is remarkable in an open system. Moreover, since the dry air from the air conditioner is blown directly into the room, it becomes an overdried environment, and the habitability is not so good.

The radiant heating / cooling method has been attracting attention as a solution to the drawbacks of the convection method.
In the conventional radiant heating and cooling system, a) it is not suitable for rapid heating and cooling due to the radiant system, and the thermal efficiency is not so good. B) The heat medium circulation path is installed on the ceiling, walls, floor, etc. Because of the disposition, the disposition due to the panel structure causes an increase in equipment cost, and (c) there is a drawback in that moisture in the air is condensed when the radiator is cooled to a temperature at which the radiation effect can be obtained.

Since the heating and cooling by the radiant heat method is effective in forming a comfortable and natural temperature environment, although the cost of the equipment and the weight of the equipment have been reduced, The reality is that the need for a heat medium circulation path, and effective measures to improve the drawbacks in terms of thermal efficiency and condensation have not been realized. The present invention has been made in view of the circumstances as described above, and while making the most of the characteristics of heating and cooling by the radiant heat method, further solving the drawbacks of the conventional method, aiming at improvement of thermal efficiency and prevention of dew condensation. The purpose is to provide a new heating / cooling method that can be performed.

[0006]

In order to solve the above-mentioned problems, the present invention provides an air heating / cooling method characterized in that heat is transferred by air and the room is heated and cooled by the formation of radiation and convection. provide. Further, as one aspect of the present invention, air from an air conditioner having a temperature higher or lower than the temperature of the room air is circulated to the space above the ceiling or inside the wall to perform radiant heating and cooling, and Provided is an air heating / cooling method, which is characterized by supplying a part of air to a room.

[0007]

In the conventional convection type and radiation type air conditioning systems, almost no consideration has been given to the heat balance of the human body in the space. Regarding the heat balance by the human body, it is considered that latent heat / sensible heat is about 50%, radiation is about 30-40%, and heat transfer is about 10-20%. In the case of heating and cooling by convection, only about 50% heat balance due to latent heat and sensible heat,
Further, in the case of the radiation method, only the heat balance of 30 to 40% due to radiation is controlled.

On the other hand, in the air heating / cooling method of the present invention, radiant heating / cooling can be performed by circulating air from the air conditioner to the space above the ceiling or in the wall, and a part of this air can be used. By supplying the air to the room, it is possible to quickly heat and cool the air by convection and improve the thermal efficiency.
Moreover, it is important to supply dry air that has been dehumidified by the air conditioner to the room, and circulate this room air to the air conditioner, making it easy to control the humidity in the room. It is possible to effectively prevent the formation of dew condensation on the ceiling surface or the like.

Such excellent operational effects have not been realized by the conventional techniques. Examples will be shown below to describe the air heating / cooling method of the present invention in more detail.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of a ceiling portion schematically illustrating the method of the present invention. For example, as shown in FIG. 1, in the method of the present invention, the air from the air conditioner (2) having a temperature higher or lower than the temperature of the air in the room (1) is fed into the space above the ceiling (3). Radiant heating and cooling is carried out by circulating to. Then, a part of the dehumidified dry air from the air conditioner (2) is discharged from the outlet through a small hole (5) provided in an appropriate number on the ceiling surface (4) as compared with a conventional indoor heating and cooling device. For example 1
Approximately / 10 air is flowed and supplied to the room (1).

As a result, the radiant heating and cooling, as well as the partial supply of air to the room (1), enables rapid heating and cooling similar to the air convection system, and due to the synergistic effect with radiation, the indoor ( The thermal efficiency for heating and cooling in 1) is greatly improved. Moreover, the blow-off supply of the dry air facilitates the control of the humidity in the room (1), so that the dew condensation on the ceiling surface (4) is effectively prevented.

A heat insulating layer (6) and a moistureproof layer can be appropriately formed in the space above the ceiling (3). Ceiling surface (4)
It is preferable to use a member having as high thermal conductivity as possible as the constituent material, but any suitable material such as a conventional wood material or inorganic material may be used. The small holes (5) may be appropriately arranged on the entire surface of the ceiling surface (4) or may be locally arranged. There is no particular limitation on the shape. It can be a suitable small hole such as a circle, a slot, or a quadrangle.

The void (3) may have a multi-layer structure as illustrated in FIG. In both cases of FIG. 1 and FIG. 2, a duct (11) having a partition plate (7) and an air damper (8) is appropriately provided in the void (3) as illustrated in FIG. 2, for example. By arranging them, it is possible to control the air flow passage in the void (3), the air supply passage for air to the room (1), and the amount thereof. It can also be a local air blow.

Further, in the present invention, the air flow to the space above the ceiling (3) and the air supply to the room (1) from the air conditioner may be configured as separate air flows. In this case, it is possible to use different air conditioners or to branch each by a duct. In this case, it is not necessary to arrange the small holes on the ceiling surface (4). of course,
Although the above example is for the ceiling part, the present invention is not limited to this, and air may be circulated to the wall void part or air may be blown out and supplied into the room from the small wall part hole.

Furthermore, as illustrated in FIG. 3, it may be combined with heating and cooling by floor radiation by air circulation from the air conditioner (10) to the underfloor space (3). Further, various detail aspects are possible.

[0016]

As described in detail above, the present invention achieves the following excellent effects. 1) It enables radiant heating and cooling by circulating air from an air conditioner to the space above the ceiling or inside the wall.

2) By supplying a part of the air to the room, it is possible to quickly heat and cool the room by convection. 3) The heat efficiency is greatly improved by the heating and cooling by this radiation and convection. 4) By supplying dry air dehumidified by the air conditioner to the room and circulating the indoor air to the air conditioner,
The humidity control in the room becomes easy.

5) Further, the formation of dew condensation on the ceiling surface or the like is effectively prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of a ceiling portion illustrating a method of the present invention.

FIG. 2 is a cross-sectional view showing an example in which a ceiling void portion is multilayered.

FIG. 3 is a perspective sectional view showing an example combined with underfloor radiation heating and cooling.

[Explanation of symbols]

 1 Indoor 2, Air Conditioner 3 In-Ceiling Void 4 Ceiling Surface 5 Small Hole 6 Insulation Layer 7 Partition Plate 8 Air Damper 9 Underfloor Void 10 Air Conditioner 11 Duct

Claims (6)

[Claims] 1. An air heating / cooling method, characterized in that heat is transferred by air, and heating / cooling is performed by forming radiation and convection in a room. 2. Air from an air conditioner having a temperature higher or lower than the temperature of the room air is circulated in the space above the ceiling or in the wall to perform radiant heating and cooling, and a part of this air is allowed to enter the room. The air heating / cooling method according to claim 1, further comprising: 3. The heating / cooling method according to claim 2, wherein a part of the air is supplied into the room through a small hole provided on the ceiling surface or the wall surface. 4. The heating / cooling method according to claim 2, wherein the material used for the radiation surface of the ceiling surface or the wall surface is a material having high thermal conductivity. 5. The heating / cooling method according to claim 2, wherein the partition plate and the air damper arranged in the space above the ceiling control the flow of air and the supply of air into the room. 6. The heating / cooling method according to claim 2, wherein the space above the ceiling or inside the wall has a multi-layered structure.