Tag Archive | "solar heating systems"

Types And Advantages Of Solar Heating Systems

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Now you can power your house with green energy. It may sound expensive or difficult to convert normal home into sun-inspired home. But in fact, it is fairly simple and economical. These have countless benefits. Being environment-friendly, these are safer and not harmful for the atmosphere around.

Two methods of solar heating are “active” and “passive”.

Active solar heating

Specific equipment is required for active solar heating. Pumps and fans are needed to move or direct sun heat. There are two further classifications in it, which are air-based and liquid systems.

1.Air-based solar heating

In air-based solar heating systems, collectors are used. These trap air which absorbs and transfers heat from the sun. Air-based system can work on lower efficiency than liquid ones. Why is that so? The reason is that air cannot transfer heat efficiently like water can do.

Advantages of air-based solar heating

There is an advantage of air-based solar heating that these systems can warm up room directly. These can also function early in the morning and late in the day. Moreover, these are easy to build and install. These can be fixed outside so that more than one room in a house can be heated.

Air-based connectors are mostly installed on window frames, roofs and walls.

2.Liquid-based active solar heating

Liquid solar collectors are used in liquid-based systems. These trap and move heat. Most common are flat-plate collectors. A fluid, like water or antifreeze is filled. This liquid absorbs heat. This heated fluid is then transferred to heat exchanger or storage tank through mechanical collector such as pump.

Important considerations

While installing solar heating system, consider these important things first:

  • Its cost is affordable
  • Size is suitable to your particular needs
  • It is durable and long-lasting
  • Tank placement is absolutely accurate

When entire mechanism is properly installed, solar heat can be distributed with a central-forced air system, a radiant floor, and a baseboard or hot water radiator.

Passive solar heating

Another type is Passive solar heating system. It works by storing solar energy. It does not require any electrical or mechanical devices.

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Construction and Functions of Solar Cells

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Solar energy is the only type of fuel that is present all over the world and is available for no cost. There are a number of devices in the market that are operated on solar energy. Sunlight is being converted into many other forms of energy and is extremely practical. Solar lights and solar heating systems are two of the most wide-spread applications of solar energy.

Photovoltaic cells

Photovoltaic cells

Solar cells are the most vital part of the solar energy system. If you are thinking to install one for your house due to its affordability and long term benefits, then you must have information regarding solar cells. The name widely used for solar cells is photovoltaic cells. We can regard these cells as the energy conversion devices. It converts the solar energy or light energy into electrical energy.

Difference between solar and PV cells

The only difference between solar cells and photovoltaic cells is that in cease of solar cells the light energy is taken entirely from sun, and in case of PV cells the source of light is not determined. Modules can be formed by grouping together the solar cells. You can group them together by connecting them electrically into a single frame.

Solar panels

Like a satellite dish or solar calculator, solar panels can be divided in to a number of individual solar cells. Read the full story

Important Things about Integral Collector Storage

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Passive solar heating is a great way to cut down on the maintenance cost of the free utility power and to save money on it. Passive solar heating systems harness sun power energy without using any type of mechanical or electrical tool. Passive solar heating systems are divided into three main types, one of which is integral collector storage (ICS).

Working of Integral Controller Storage Units

Working of Integral Controller Storage Units

The other types of passive solar heating system like flat plate or evaporated tube collectors utilize absorbent metal plates for heat transfer. On the other hand, integral collector storage units utilize only water. In simpler word, these systems rely on water that acts as collector itself. Water is stored in a storage tank. That tank is painted black and installed in an insulated box that is glazed on its one side. When the sunlight shines through the glazing on one side and strikes the black tank that is located on the other side, water that is contained in that tank become hot. Water is usually drawn from the top.

Do-it-Yourself ICS Units

Homeowners that are looking to heat small amount of hot water can build integral collector storage units by themselves without nay external help. In such cases, hot water becomes cool overnight and it remains available only during the day in the presence of sufficient amount of full and direct sunlight.

Advanced Integral Collector Storage Units

In more advanced or sophisticated integral collector storage units, cold water is available on demand from the house. Read the full story

Solar House Water Heating Systems

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Solar power is a cleaner and safer source of energy. Recent advancements that have been taken place in solar technology indicate that this technology is moving ahead towards the mass adoption of renewable energy. Currently, solar power is available to homeowners in a variety of ways. These include solar house heating and photovoltaic panels (PV).

Solar House Heating System

Solar House Heating System

Solar house heat systems are tailored in a way that they cut down on the conventional water heating needs. According to a careful estimate by the U.S Department of Energy the need of heating water is reduced by about two thirds. That is the reason how solar energy can affect positively on human dependency on fossil fuel and traditional electricity and makes a home greener for the external environment.

Components of Solar House Heating Systems

Solar house heating systems are usually comprised of two main components. These components play important role in the proper functioning of solar house heating systems. These components include a solar collector and a storage tank.

Solar Collector

The heat collectors perform the function of collecting heat from the sun and heat the water. Read the full story

Understanding Passive Thermal Heating

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Basically, there are two main natural sources readily available to the planet earth for thermal heating. One source is available deep down the earth that is the molten core of the planet earth and other source is far above our planet and going us rewarding powers like sunlight. Sunlight is helping a lot to all creatures of the planet earth for their survival.

Residential Use of Solar Energy

Residential Use of Solar Energy

Both of these energy sources are being utilized on both large and small scales for thermally heating our homes. However, the primary source of energy for power generation for human being is mainly the sun and its power. It is because it is readily available in abundance and it does not require digging to get it.

Geothermal vs. Solar Thermal Energy

Geothermal is most widely being utilized for heating and cooling residential places, but it requires pumps to circulate air through the underground pipes or tubes. Solar Thermal power is far easier to be used passively without the need of any type of mechanical tools. It is because of the easy and workable design of the home that utilizes solar thermal energy.These homes are designed in a way that can manipulate to capture solar energy during the winter season.

Practice Approaches of Passive Thermal Heating

Other practical approaches of solar thermal heating are addition of insulation to contain the heated air either outside or inside, installation of walls and floors having thermal mass like tile, concrete etc in order to retain the heat that has been collected and etc.

Ways of Passive Heat Collection

There are three main ways through which heat from the sun can be collected in passive manner. These ways include direct gain, indirect gain and isolated gain. Read the full story

Understanding Thermal Liquid Heater Collectors

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Solar collectors are really helpful for heating water or space in residential use through solar power. There are basically three distinct types of solar collectors. These include flat plate, evacuated tube and integral collector storage.

Flat Plate Solar Collectors

Flat Plate Solar Collectors

These are the most common types of collectors. They are used to generate hot water. These collectors are usually found on residential roofs. These collectors consist of insulated metal boxes. These boxes contain an absorber plate that is used to heat water or air. This plate can either be glazed or unglazed. For heating, cold water circulates through tubes or pipes that are connected to absorber plate. Air is then moved through the space heater though the absorber either by the fan force of by natural convection. The flat plate collectors are most commonly used to heat household water that flows back to the residential building. These collectors are also used for heating swimming pools.

Evacuated Solar Collectors

These collectors are capable of reaching the highest temperatures and are relatively costlier than other collectors. A direct flow evacuated tube usually has a flat and glass tubes that contain metal absorbers. These metal absorbers are also called as fins. These fins are connected to a header pipe. Read the full story