JP2023024844A - Building and building management method that do not consume electricity or other energy, are environmentally friendly and provide comfortable space - Google Patents

Abstract

To provide a building and a building management method for coping with problems that air conditioners using electricity are mainly used in the current building cooling methods, the electricity is generated mainly by fossil fuel, the discharge of carbon dioxide gas causes global warming to raise the temperature, a vicious cycle requiring a larger capacity air conditioner or the like is created, energy is required for manufacturing these facilities, and high cost and carbon dioxide gas discharge are inevitable.SOLUTION: A weir is laid on a flat roof of a building to form a closed water reservoir. In addition, a removable weir is provided in a drain ditch or a drain pipe from the water reservoir to store water such as rainwater to the height of the weir. The heat from the sunlight falling on the building is absorbed by the evaporation of water, which reduces the temperature rise of the building and allows inexpensive and comfortable cooling without using electricity, which is a source of carbon dioxide gas emissions.

Description

The present invention relates to a simple and inexpensive method for cooling a building using the latent heat of evaporation of water without using power.

At present, the heat of summer due to global warming is progressing rapidly, and air conditioners, electric fans, etc. are the main means for lowering the temperature in buildings and cooling rooms. All of these use expensive electricity. In addition, power generation is mainly dependent on fossil fuels, which inevitably generates carbon dioxide. In addition to the high cost of power generation, the use of energy for making electric equipment such as air conditioners is unavoidable, and further global warming is progressing. In addition, many people, such as the elderly and the sick, have disadvantages such as discomfort and damage to their health due to the use of air conditioners.

Provide technology that generates carbon dioxide gas that causes global warming, protects buildings from the heat of summer, and creates comfortable and healthy room spaces without using expensive electricity.

According to the present invention, the roof of a building is entirely or partially surrounded by a weir, a shallow reservoir is provided, and water such as rainwater is stored in the reservoir to a depth of several centimeters to several tens of centimeters, thereby preventing sunlight from radiating. hand. By evaporating the water, the temperature of the pooled water is kept low, the temperature of the roof slab under it is kept low, and the temperature of the room under it is kept low to provide a comfortable room space. The higher the weir of the pool, the deeper the water can be obtained, and the water will not dry up even if the weather continues, while the roof slab requires strong strength. A sufficient cooling effect can be obtained even if the water depth is shallow, so a water depth of several millimeters to several centimeters is sufficient, especially in the case of private residences. Moreover, the entire roof does not necessarily need to be covered with water, and even if it is partially covered, a cooling effect corresponding to the covered area can be obtained.

On a hot summer day when the temperature reaches as high as 32 degrees Celsius, it is so hot that you cannot walk barefoot on the rooftop unless you fill the puddles with water. Also, the temperature in the room becomes so high that you cannot live without a cooler. On the other hand, if the roof is filled with water, the surface of the roof will be slightly warmer, and the temperature in the room will drop below 30°C, so air conditioners will not be necessary. Since it does not use electricity, which is the main cause of carbon dioxide emissions, it does not have a negative impact on global warming. Operation cost is zero because rainwater is mainly used. The pleasant coolness without noise creates a refreshing environment that makes you feel like you are on a plateau.

Flat roof and stored water showing the whole invention (example) Removable weir attached to drain pipe (example)

A weir having a height of several centimeters to several tens of centimeters is made along the edge of the roof of the building to form a reservoir covering the whole or part of the roof. In addition, a removable weir having a height lower than the height of the weir which built a puddle into the drain or pipe from the roof of the building is provided. The higher the weir, the more water it can store during the rainy season or heavy rains, and the less likely it will dry up even after a period of fine weather. On the other hand, as the water depth increases, it becomes necessary to increase the strength of the roof slab. The height of the drainage weir is determined by the balance between the equipment cost for this purpose and the cost of water supply such as tap water required when the supply is depleted. Water such as rainwater overflows when it reaches the height of the weir attached to the drainage, and the water depth becomes the height of the drainage weir. After the summer, when the air conditioner is no longer needed, remove the weir attached to the drain so that the water in the puddle disappears.

The private house shown in Photo 1-5, Osamu Kobayashi's flat roof with waterproof coating, has a weir with a height of about 10 cm around the edge of the roof, and two drainage pipes with an inner diameter of about 10 cm. installed in place. At the beginning of July 2021, when the rainy season is about to end, one of the drain pipes is plugged with a plug, and the other is a PVC pipe with an outer diameter slightly smaller than the inner diameter of the drain pipe, which is attached to the roof slab. It was erected at a height of about 2 cm from the surface and used as a drainage weir. Soon it started to rain, the water depth approached the height of the drainage weir, and after July 20th, the temperature began to exceed 32 degrees every day. A commercial crow-repellent stainless steel material was installed as shown in Photo 4 to prevent damage by crows, and an algae growth inhibitor SwiSui was dissolved in water and sprayed in the reservoir. When the amount of rainfall after the end of the rainy season was small and the water depth became too small, tap water was supplied. At the same time last year, it was so hot that I could not walk on the roof without water. In the same period last year, when the temperature exceeded 32 degrees Celsius, it was impossible to stay in the room without the air conditioner running.

A comfortable space can be provided at a low cost by using nature without destroying the environment. Therefore, it can be applied not only to individual houses but also to collective housing and office buildings.

Claims (3)

A weir with a height of several centimeters to several tens of centimeters is placed on a flat roof, and both ends are closed to form a puddle. A building that is installed in the drainage ditch or drainage pipe and used as a drainage weir Water such as rainwater is supplied to the reservoir of claim 1, and when the temperature reaches a temperature that requires cooling, a drainage weir is installed, and the water depth at which water overflows from the drainage weir is between several millimeters and several tens of centimeters. 2. The building management method according to claim 1, wherein water supply and drainage are managed at a water depth of . The building according to claim 1, wherein the building is a small-scale residence such as a private residence.

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