What are the characteristics and uses of solar energy?

Introduction What are the characteristics and uses of solar energy? Solar energy refers to the energy of thermal radiation from the sun (see the three modes of thermal energy propagation). Its main manifestation is that it is frequent.

What are the characteristics and uses of solar energy?

Solar energy refers to thermal radiation energy from the sun (see the three modes of thermal energy propagation). Its main manifestation is often called solar rays. Nowadays, it is typically used to generate electricity or provide energy for water heaters. Since the birth of life on earth, it has relied primarily on thermal radiation energy provided by the sun. Since ancient times, humans have also known how to use sunlight to dry objects and use it as a method of making food, such as crafting. salt and dry the salted fish. With the decline of fossil fuels, solar energy has become a significant part of human energy consumption and continues to grow. There are two ways to use solar energy: photothermal conversion and photoelectric conversion. Solar power generation is a pennyemerging renewable energy rce. Solar energy in a broad sense also includes wind energy, chemical energy, hydropower, etc. on earth.

Characteristics

Advantages

(1) Universal: The sun shines on the earth, without geographical restrictions, whether on land or sea,

p>

no matter Mountains or islands are everywhere and can be directly developed and used, easy to collect, and do not require mining or transportation.

(2) Harmless: The development and use of solar energy will not pollute the environment. It is one of the cleanest sources of energy, which is extremely valuable today as environmental pollution becomes more and more serious.

(3) Huge: The energy of solar radiation that reaches the Earth's surface each year is approximately equivalent to 130,000 billion tons of coal, and its total amount constitutese the greatest energy that can be developed in the world today.

(4) Long term: Based on estimates of the rate of nuclear energy produced by the sun, hydrogen storage is sufficient to last tens of billions of years, and the duration life of the Earth is also about billions of years. In this sense, we can say that the energy of the sun is inexhaustible.

Disadvantages

(1) Dispersion: Although the total amount of solar radiation reaching the Earth's surface is large, the energy flux density is very low. On average, near the Tropic of Cancer, when the weather is relatively clear in summer, solar radiation irradiance is greatest at noon. The average solar energy received in an area of ​​1 square meter perpendicular to the direction of sunlight is approx. 1000 W if the day and night average throughout the year is only about 200 W. In winter it is only about mity, and on cloudy days it is generally only about 1/5. This energy flow density is very low. Therefore, when using solar energy, if we want to obtain a certain conversion power, we often need a set of collection and conversion equipment with a considerable area, which is expensive.

(2) Instability: due to the limitations of natural conditions such as day and night, season, geographic latitude and altitude, as well as the influence of random factors such as clear , cloudy, cloudy, rain, etc., reaching a certain ground Solar irradiation is both intermittent and extremely unstable, which makes the large-scale application of solar energy more difficult. In order to make solar energy a continuous and stable source of energy, and ultimately an alternative energy source capable of competing with conventional energy sources, the probleme of energy storage must be well resolved, that is, the energy from solar radiation during the clear day must be stored. as much as possible for use at night or rainy days. It is used for everyday use, but energy storage is also one of the weakest links in solar energy use.

(3) Low efficiency and high cost: solar energyAt the level of utilization development, some aspects are theoretically feasible and technically mature. However, some solar energy utilization devices have low efficiency and high cost, and the current laboratory use efficiency does not exceed 30%. In general, the economy cannot compete with conventional energy. For a considerable period, the future development of the use of solar energy will be limited mainly by economic reasons.

Uses

On timeCurrently, solar energy has the following nine main uses in production and life:

1. It mainly collects energy from the sun and heats it to drive the steam turbine to produce electricity;

2. Photovoltaic solar energy production. Combine solar cells of any size;

3. It replaces thermal solar water pumps;

4. Solar Buildings; There are three main forms: the passive building, the active building and the "zero energy building";

6. Used to dry many agricultural and secondary products;

7. It can be divided into two types: hot box type and condensing type;

8. Solar refrigeration and air conditioning. This is an energy-saving, noise-free and pollution-free green air conditioner;

9. Seawater desalination, environmental management and other uses.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Understanding 18650 Voltage: A Comprehensive Guide to Lithium-Ion Battery Power

    Lithium-ion batteries have become the backbone of modern portable electronics, providing the energy needed for everything from smartphones to electric vehicles. Among the various types of lithium-ion batteries, the 18650 battery stands out as a popular ch
    08-27
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01