Experimental study on the efficacy of solar street lamps with different illuminants

Solar street lamps have matured in recent years and have been recognized by the public. However, solar street lamps have brought convenience to the people while also exposing some problems. In order to make better use of solar energy resources, solar energy of different illuminants has been made. Street lamps can be used for the largest purpose, and we propose the "experimental research on the efficacy of solar lamps for different illuminators".

Through the experimental research on the efficacy of different illuminators solar street lamps. The experiment explored different illuminants (LED lamps, low-pressure sodium lamps, low-voltage energy-saving lamps) as experimental variables, using control variable method, through multiple comparison experiments, data recording and data analysis, to obtain the illuminating situation of solar illuminators with different illuminants. In order to deal with different solar street lights in different locations.

This paper mentions that the experiment uses the method of controlling variables, and the single variable is controlled during the assembly process, that is, the solar lamp illuminator, using a uniform specification of solar panels (specification: 10cmx20cm), storage battery (8v), charge and discharge control The data obtained through multiple experiments, the comparative analysis finally gives the experimental results of the luminous efficacy of different illuminator solar street lamps.

II. Experimental process and result analysis (I) Data to be determined during the experiment The power supply part of the solar street lamp can be designed according to the general solar power generation system. The capacity of the solar battery pack needs to be determined according to the power of the solar street lamp. Solar street lights have their own particularities, so the following data should be determined before the experiment: (1) Determine where the solar street lights are used and where the sun is shining. Understand and master the meteorological resources of the place of use. (2) The power (w) of the selected source of the solar street light. The size of the light source directly affects the capacity design of the battery pack and the parameters of other equipment (different illuminants of the same power are selected during the experiment). (3) Solar street lights are asked every night to work. (4) The number of consecutive rainy days (d) of the place where the solar street lamp is used. Determine the number of days between two consecutive rainy days (D), which is the power required to power the battery system to fill the battery after a continuous rainy day.

1. The purchased equipment is assembled according to the design of the circuit diagram. During the assembly process, a single variable is controlled, that is, the solar lamp illuminator, using a uniform specification of solar panels (specification: 10cmx20cm), storage battery (8v), charging and discharging Controller, wire; 2. The assembled LED lamp equipment, low-pressure sodium lamp equipment, energy-saving lamp equipment are grouped and numbered, respectively, as experimental group 1, experimental group 2, experimental group 3; 3. Implement specific experiments with control variable method The specific operation time of the experiment was three weeks. Three sets of experimental devices were placed in an open area every day, and outdoor operations were performed from 10:00 am to 14:00 pm. During this time, the lights are turned off, and the device is inspected at 14:00 pm and the experimental device is recovered. The efficiency of the lamp is checked at 20:00-22:00 every day, the experimental device is installed, and the start time and illuminating time of each lamp in the experimental group 1, the experimental group 2, the experimental group 3 are recorded with a timer, and related information is recorded. Fill in the record light source feature table, as shown in Table 1. In terms of luminous efficiency, it can be said to be comparable. LED lights prevail in terms of service life. Considering LEDs from an environmental perspective still has its advantages. LED lamps are more suitable as illuminants for solar street lamps than energy-saving lamps. In terms of the matching of solar power generation, LED is a low-voltage power supply, which is the easiest to use with solar power. In terms of cost, LED lamps have the highest cost and sodium lamps are the cheapest. The low-pressure sodium lamp is especially suitable for use in special environment areas such as solar street lights, tunnel lighting and high altitude cold. In terms of road light distribution angle and color rendering requirements, sodium lamps occupy a large advantage. The light of the low-pressure sodium lamp is mainly composed of yellow light with a wavelength of 5.89 mm, and the light efficiency is higher than that of other light sources. Because its illuminating is monochromatic light, it can make people clearly see objects with small chromatic aberration. Even in smoke, it is difficult to form a light curtain. The fluoroscopy performance is very good, and it is an excellent light source for road lighting.

The use of solar power does not require any fuel, nor does it generate exhaust gas or waste, and does not cause any pollution to the environment. The experimental study on the efficacy of different illuminant solar street lamps has improved the application range of different illuminant solar street lamps through multiple comparison experiments and analysis of experimental results, so as to facilitate the use of solar street lamps and the full utilization of solar energy resources.

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