Yes, electric heating tape can be used for antifreeze and heat preservation, and can also be used for thermal compensation. Just like people use electric heating tapes to compensate for the heat in hot water pipes. For example, if hot water needs to be at 20 degrees Celsius, during the pipeline transport process the temperature will drop (i.e. heat will be lost). At this time, the hot water in the pipeline can be kept at around 20 degrees Celsius. degrees Celsius by heating with an electric heating tape. Installing an insulating layer on the exterior can reduce heat loss and protect the electric heating tape.
It's a long shot, but back to you, are you talking about using solar electric heating tapes to heat the pipes of solar water heaters in the south? If there is no temperature below zero, the pipes will not freeze. You can simply install an insulating layer (insulating cotton). Why do we need to install electric heating tape?
Excuse me, there is a family that uses photovoltaic solar energy production. Will China Southern Power Grid recycle solar electricity? Is there such a policy?
It is best for solar panels to face south.
Solar panels should face the sun and get the most sunlight. The azimuth angle of the panels on common solar street lights in life is generally chosen to be in the south direction, which can optimize the power output of solar panels per unit time if the solar street lights are installed in places such as roofs. slopes, mountains and building structures. When considering restrictions on shade etc. you need to consider how to make full use of the landexisting and effective area, and try to avoid shadows generated by surrounding buildings, structures or trees.
As long as it is ±20° due south, it will not have a big impact on electricity production. If conditions permit, it should be as far as possible within 20° southwest to allow peaking. of solar energy production will appear around noon, which will make it possible to produce more electricity in winter. When the installation area of solar panels in the south direction is not large enough, the solar panels can also be installed in the east and west directions.
Selection of the tilt angle of the solar panels:
The ideal tilt angle is to make the annual energy production of the solar panels for public lighting as large as possible, so that in winter the difference in electricity production between summer and summer is asas small as possible. Generally, local latitude or local latitude plus a few degrees is used as the tilt angle for local installation of solar cell module. (Generally, the tilt angle is 30 degrees in areas south of the Yangtze River and 45 degrees in areas north of the Yangtze River.)
Of course, if software Computer aided design can be used, the Solar tilt angle optimization calculation can be carried out, it would be better to be able to take both into account, which is particularly important for high latitudes. There is a very large difference in horizontal solar radiation between winter and summer at high latitudes.
If the design is based on horizontal plane radiation parameters, the storage capacity of the battery in winter will be too large, resulting in an increase in design capacity and investment ofbattery. By choosing the optimal tilt angle, the difference between winter and summer radiation on the solar panel becomes smaller and the battery capacity can also be reduced. A balance is found, which reduces the cost of the entire solar street lighting system. the design more reasonable.reason.
According to current business policies and rules, the grid connection modes of distributed photovoltaic power generation projects have the following three modes:
(1) All for self-use: photovoltaic equipment produces electricity All electricity is used for personal use and is not connected to the grid;
(2) Self-use for a personal use, and the remaining electricity is connected to the network: part of the electricity produced by photovoltaic equipment is used for self-consumption and the rest of the electricity is connected to thegrid;
( 3) Complete grid connection: all electricity produced by photovoltaic equipment is connected to the grid. grid.
We hope that our answer will be useful to you.