PASSIVE COOLING SYSTEM

Abstract

The present invention relates to the development of a cooling system that utilizes latent heat for efficient temperature management. This system features a sealed pipe encased in damp cotton, allowing hot air to absorb heat from the pipe's surface, which facilitates the evaporation of water in the cotton. This process not only cools the pipe and the surrounding air but also eliminates the need for mechanical cooling, offering a sustainable and cost-effective alternative to traditional cooling methods. The invention aims to optimize cooling performance by examining the effects of pipe diameter and length on efficiency, making it suitable for both residential and commercial applications. Through this innovative approach, the invention contributes to energy conservation and environmental sustainability in modern cooling solutions.

Specification

Description:PASSIVE COOLING SYSTEM
FIELD OF THE INVENTION
The present invention relates to the field of thermal engineering, specifically focusing on passive cooling systems that utilize latent heat for enhanced energy efficiency and sustainable temperature management solutions.

BACKGROUND OF THE INVENTION
The patented invention US4921041A is a loop-type heat pipe designed to transfer heat in various applications. It features an elongate, air-tight pipe formed into a loop, with designated heat receiving and radiating portions. A heat-carrying fluid fills the pipe, allowing it to circulate in a closed-loop system. This design includes mechanisms to direct the fluid flow, ensuring heat transfer by propelling the fluid and its vapor toward the heat receiving section.

The patented invention presents several disadvantages that limit its practicality in various applications. One major drawback is its reliance on a heat-carrying fluid, which necessitates careful management of fluid dynamics to ensure efficient operation. The complexity of designing a loop structure, including the need for specific heat receiving and radiating portions, can complicate installation and increase manufacturing costs. Additionally, the mechanical components required to direct the flow of the heat-carrying fluid can lead to maintenance challenges and potential points of failure, ultimately reducing the system's reliability. These factors contribute to the overall inefficiency and energy consumption of traditional heat pipes, particularly in environments where energy conservation is paramount.

In contrast, the present invention addresses these limitations by offering a passive cooling system that utilizes the principles of latent heat without the need for complex mechanical components. By encasing a sealed pipe in damp cotton, this system harnesses the evaporation of water to cool the pipe and the surrounding air effectively. This design eliminates the need for a heat-carrying fluid and the associated complications of fluid management, making the system simpler and more reliable. Furthermore, the passive nature of the invention allows it to operate continuously without electricity, providing a sustainable cooling solution in areas where energy resources are limited or where conservation is a priority.

Additionally, the present invention allows for easy integration into various settings, including residential and commercial buildings, without the installation challenges posed by traditional heat pipes. By focusing on optimizing parameters such as pipe diameter and length, ongoing research aims to maximize cooling efficiency, addressing the performance concerns that often accompany conventional systems.

OBJECT OF THE INVENTION
An object of the present invention is to provide a cost-effective and environmentally sustainable cooling system that utilizes latent heat through passive mechanisms.

SUMMARY OF THE INVENTION
The present invention provides a cooling system that leverages latent heat to achieve efficient temperature management. By encasing a sealed pipe in damp cotton, the system utilizes the evaporation of water to cool the pipe's surface and the surrounding air, eliminating the need for mechanical cooling. This innovative approach not only enhances energy efficiency but also promotes sustainability, making it a cost-effective alternative to traditional cooling methods for both residential and commercial applications. The invention aims to optimize cooling performance by investigating the effects of pipe diameter and length, paving the way for further advancements in passive cooling technologies.

BRIEF DESCRIPTION OF DRAWINGS
Figure 1 depicts the cotton wrapped pipe system showing aluminum pipe and ordinary wet cotton threads wrapped around the aluminum pipe.
Figure 2 depicts the result of CFD Software Simulation for a single pipe.

DETAILED DESCRIPTION OF THE PRESENT INVENTION
The present invention presents a cooling system that employs a passive mechanism to efficiently manage temperature through the utilization of latent heat. This system is designed to provide an effective and sustainable alternative to conventional mechanical cooling solutions. Table 1 represents the comparison of the existing cooling system with the cooling system of the instant invention.
Table 1

According to one embodiment of the present invention, cooling of a space is done utilizing the system of passive cooling system, comprising the steps of positioning the sealed pipe in an area subject to heat exposure, ensuring the damp cotton thread remains sufficiently moist to facilitate continuous evaporation, and allowing the evaporation process to cool the air and the surface of the pipe.

Further, the system can be installed in the Residential as well as Commercial Buildings outside the Window like window air-conditioners.
According to one embodiment of the present invention there is provided a sealed pipe encased in a layer of damp cotton threads [Figure 1]. As hot air flows around the pipe, it absorbs heat from the pipe's surface. This heat absorption triggers the evaporation of water contained in the cotton, harnessing the latent heat of vaporization. The process of evaporation not only cools the outer surface of the pipe but also lowers the temperature of the air surrounding it, creating a continuous cycle of cooling without the need for energy-intensive mechanical systems.
According to one embodiment of the present invention there is provided a system, wherein the system will have two fans perpendicular to each other, wherein one fan will suck the cooled air from the pipes which will come in the room and the second fan will blow the air on the surface of the pipes to provide cooling effect (evaporation effects).
An output from the CFD Software Simulation for a single pipe is shown in Figure 2.
The present invention discloses the design of the cooling system that allows for easy installation and integration into various settings, including residential homes and commercial buildings. The passive nature of this system means that it can operate effectively in areas with limited access to electricity or where energy conservation is a priority.
The present invention aims to enhance the system's efficiency by conducting experiments to determine the optimal configurations of pipe diameter and length.
In summary, the present invention provides an efficient, cost-effective, and environmentally friendly cooling solution that utilizes the principles of latent heat and passive cooling to meet modern temperature management challenges. Through ongoing research and optimization, this system has the potential to revolutionize cooling technologies and contribute significantly to energy conservation efforts.
Advantages of the invention:
1. The sealed pipe is constructed from a thermally conductive material like aluminum to enhance heat transfer efficiency.
2. The damp cotton thread is maintained at a moisture level that optimizes the rate of evaporation and, consequently, the cooling effect, wherein water will be passing in the outside periphery of the tubes and side fan will evaporate through air.
According to one embodiment of the present invention there is provided a system, wherein for real time monitoring of the temperature and humidity, sensors can be incorporated to enhance the cooling effect.
While the invention is amenable to various modifications and alternative forms, some embodiments have been illustrated by way of example in the drawings and are described in detail above. The intention, however, is not to limit the invention by those examples and the invention is intended to cover all modifications, equivalents, and alternatives to the embodiments described in this specification.

The embodiments in the specification are described in a progressive manner and focus of description in each embodiment is the difference from other embodiments. For same or similar parts of each embodiment, reference may be made to each other.

It will be appreciated by those skilled in the art that the above description is in respect of preferred embodiments and that various alterations and modifications are possible within the broad scope of the appended claims without departing from the spirit of the invention with the necessary modifications. , Claims:We Claim:
1. A passive cooling system wherein the present invention comprises a sealed pipe; and a layer of damp cotton encasing the sealed pipe.

2. The passive cooling system as claimed in claim 1, wherein the system is suitable for an effective and sustainable alternative to conventional mechanical cooling solutions.

3. The passive cooling system as claimed in claim 1, wherein the design of the system allows for easy installation and integration into various settings.

4. The passive cooling system as claimed in claim 1, wherein the system's efficiency is enhanced by conducting experiments to determine the optimal configurations of pipe diameter and length.

5. A method of the passive cooling system as claimed in claim 1, wherein the method comprises a step of flowing hot air in sealed pipe encased in a layer of damp cotton resulting in heat absorption triggering the evaporation of water contained in the cotton and harnessing the latent heat of vaporization. The process of evaporation cools both the outer surface of the pipe and also lowers the temperature of the air surrounding it, creating a continuous cycle of cooling without the need for energy-intensive mechanical systems.

6. A method for cooling a space utilizing the system of passive cooling system as claimed in claim 5, comprising the steps of positioning the sealed pipe in an area subject to heat exposure, ensuring the damp cotton remains sufficiently moist to facilitate continuous evaporation, and allowing the evaporation process to cool the air and the surface of the pipe.