Ways on How to Make a Solar Hot Water System
Solar power is an increasingly popular way to reduce the amount of grid-energy used in homes and businesses. One of the best ways to utilize solar power without taking advantage of a full solar power array is a home built solar hot water. However, when looking at this option it’s important to understand the ways on how to make a solar hot water system. There are multiple options, stretching from small scale up to producing enough for a large family home, and even industrial if you’re being truly ambitious, it’s all in deciding how to make a solar hot water system.
History of the Solar Hot Water Tank
The first records of how to make a solar hot water system come from 1896, where a simple black-painted tank was placed upon roofs to capture the radiant light of the sun. Innovation took place when Clarence Kemp of Baltimore took a tank and placed it within a wooden box, creating what has been recognized as the first “Batch Water Heater”. It wasn’t until after the 1960’s that there was a surge in their popularity.
The Mediterranean has been one of the greatest users of solar power to heat water since the 1950’s. During this time the government forbade heating water between 10pm and 6am, and this alternative method of creating and storing heated water started to become necessary, and research started and continued to be done on how to make a solar hot water system. After the 1980’s it was actually passed into law by the Israeli Knesset that required the installation of solar water heaters in all new homes, except where there was insufficient roof space.
Australia got on the bandwagon after 1997, providing significant incentives on both a national and state level, along with the appropriate regulations on the state level on how to make a solar hot water system. Given the sheer amount of sunlight that Australia gets, it just made sense to start incorporating and encouraging this form of energy production, especially in a process that is as inherently wasteful as heating water.
How to make a solar hot water system
There are four different terms that can describe a solar water heating system, each describing one of the two basic natures of how to make a solar hot water system. Two of these terms describe how heat is transferred to the water, while the other two terms describe how the water is circulated throughout the system.
Direct and Indirect Systems
The terms direct and indirect describe two different ways of how to make a solar hot water system heat water. In a direct system the water is heated directly in a collector, and then passed into a tank for storage. This direct heating of the water by the sun is what makes it a direct system, though this comes with it’s own perils. Because the water is being indirectly exposed to the exterior temperatures, it is susceptible to freezing, which can damage the collector.
An indirect system, on the other hand, is a way on how to make a solar hot water system that heats a substance that carries heat, and is pushed through a heat exchanger that sits within the tank itself. The water itself never leaves the tank, nor does it ever come into contact with the fluid carrying the heat itself. These types of systems are also called ‘closed loop’ system. One of the benefits of using a closed loop system is it isn’t as susceptible to freezing or overheating.
Passive and Active Systems
Passive systems rely on the natural convection that occurs when a liquid or fluid is heated by the sun. This method of how to make a solar hot water system doesn’t rely on any kind of pump system or outside power source to keep the system flowing, which while it saves on electricity requirements, does tend to negatively effect its efficiency.
Active systems utilize a pump system reliant on an outside power source (which could be another solar panel) to circulate the water or heat transfer fluid throughout the system. One of the benefits of the Active system includes that the tank can be situated lower than the collectors, which means where you place the tank has less impact on the overall design. Aesthetically, it’s also possible to keep it from view, and your overall control over the system is improved.
These are just some of the basic methods involved in how to make a solar hot water system, and selecting which combination of elements are going to prove the most applicable to your situation is going to start with these options. Eliminating or reducing the amount of power you rely on from the grid by implementing researching how to make a solar hot water system can go a long way towards setting you free from grid power dependency.