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20-02-2011

Solar Fan Innovation Keeps Horses Healthy

Horse owners can now maintain their animals’ health while being environmentally conscious using a new solar-powered high volume fan to ventilate stables and control air quality.
The Solar Whiz keeps horses comfortable in stables where temperatures can vary from 12ºC up to 44ºc, depending on the season and the age and weight of the horses.
“Good air quality is essential for minimizing respiratory health problems,” says Solar Whiz managing Director Arne Hackman. “This starts with good ventilation, which also helps protect the horse stable structure from moisture damage by reducing condensation. 
“Using the Solar Whiz high volume fan, you allow Mother Nature to control the air quality cost free, every day.”
Veterinarian studies show that correct stable humidity is vital. Very dry air with low relative humidity dries the horse's nasal mucosa and can be a source of dust and pathogen infiltration into the horse's respiratory system. Very moist air with high relative humidity combined with low air temperature can reduce the insulative properties of a horse's hair coat. 
According to Equine Veterinarian and Consultant Nutritionist Dr J H Stewart in his paper ‘Exercise & heat stress’ (published in -02-2006’):
“Episodes of bleeding are more frequent in summer and are associated with poor stable air quality. The incidence is reduced in dust-free stables. Hay, raw grains and bedding are the major sources of stable air contaminants, in terms of respirable particles, fungal spores and bacterial fragments.” 
A well-ventilated stable will remove high levels of moisture or gases.

About Solar Whiz Fans 
The Solar Whiz is a powerful solar powered fan that operates completely off the grid and is ideal for stable ventilation. Being solar based there is no fire risk via wiring or sparking. The fan blade is a four wing polymeric blade designed for high speed and low noise.
By drawing high volumes of air (2100m3/hr), the fan eliminates heat build-up, reducing heat load, which is radiated back down on lower ceilings or direct on to the horses. This results in consistent lower internal temperatures, cleaner internal air and greatly reduced risk of heat stress placed on horses.
The Solar Whiz will also run cost free, every day with zero carbon emissions. It switches itself on and off automatically via the sun. Designed to fit most roof types with corrosion resistant materials, the Solar Whiz has a lightweight body (12kg), is maintenance free and has a simple installation process. It can also be gable end mounted.
This is the perfect and cost effective solution to overheating and ventilation in rural, standalone, working stables, barns or warehouses. 

Why Solar Whiz?

Moisture-Holding Capacity, Dehumidifier and Mould Removal
Air has the capacity to hold moisture in water vapor form. The amount of moisture held by a fixed volume of air (relative humidity, or RH) increases as the temperature of that air rises. For example, cold outside air has little moisture-holding capacity, whereas warm air has significant moisture-holding capacity. For every 10°C increase in temperature, the moisture holding capacity of air approx. doubles. 
Thermal Buoyancy of Air
Warm air is less dense than cold air, so it is lighter and rises. This principle works well in natural ventilation systems where the warmer stable air, caused by body heat, is allowed to rise up and exhaust in a peak vent or chimney. Reliant on external ambient temperatures, the greater the temperature difference between inside the stable and outside - the larger the uplift or buoyancy force will be. Relying on buoyancy is not very effective in warm weather since there is little temperature difference between inside and outside. For these conditions, what’s needed is a summer breeze or mechanical forced ventilation.
Natural Ventilation System - Helps Asthma Prevention
A natural ventilation system is quieter than most fan systems and can provide daylight, but require more management to maintain uniform temperature and air quality inside the horse stable.
Orientation is key, the length of the building must be perpendicular to the prevailing wind. Obstructions around the stable prevent fresh air movement, especially when located within heavy tree lined sites.
Another challenge with natural ventilation systems is condensation on building surfaces. When the warm, moist air rises to be evacuated out of the stable, it comes in contact with the cold surfaces of the roof, creating condensation. This can deteriorate building components and is uncomfortable for horses and workers.
Open roof surfaces on high UV days will also radiate extreme heat downwards.
Fan-Ventilated Stable
In fan-ventilated stables, the air exchange and distribution is forced mechanically. Since every fan creates a small vacuum, all openings into the structure become sources of air. For this reason, it is important that properly designed air inlets are provided.
Mains electricity fans need constant maintenance to ensure electrical supplies and connections are clean and safe to eliminate risk of sparking which would in turn ignite most materials within a stable. 

06-06-2010

(June- 2009) brochure-'Damp and mould removal'.

Contact  us now 0449 AIR DRY(247 379) or mail@solair.com.au

What is a SolarVenti designed for?
The main task is to act as a dehumidifier and ventilate the house. The aim is to improve the quality of the air and lower humidity. This makes the house a better and healthier place to live in and the air easier to warm up. When a house is continuously ventilated with dry, warm air, the risk of damp, rot and mould will be reduced in the long term.Many years of experience and use of the system have proven that SolarVenti reduces humidity significantly. In practice, SolarVenti's dehumidification/ventilation eliminates condensation on windows and doors which could cause them to bind. Furniture, cupboards and duvets no longer feel and smell damp as there is no longer damp in the house - and you can leave coffee, flour and salt in your holiday home without worrying about it forming lumps or going bad.

Tell me how does the SolarVenti work ?
The system is run via a photovoltaic solar cell, connected to a fan. When the sun shines it warms up the air in the absorber and the integrated solar cell produces electricity for the built-in fan which blows the heated air into the house.
The fresh air from outside is drawn in through a  2 mm layer of felt and in turn is heated and dried .

How does the system work as a dehumidifier?
It is true that the SolarVenti itself does not dehumidify. The system has a dehumidifying effect due to the fact that it sends dry, warm air into the building where it blends with the internal moist air thereby reducing internal dampness.

But does it remove normal condensation on windows and running down frame?
Yes, you see as the air is dried out during the day, over time the structure (walls,ceilings, woodwork) also dries out. So at night when the most moisture is given off through breathing and morning showers, the structure will be drier and absorb certain moisture thereby eliminating the condensing of moisture in the air onto the colder surfaces (windows & frames).

What is the life expectancy for a SolarVenti and is there any upkeep?
Based on the experience of Danish customers with the earlier version, in which the solar cell was positioned next to the panel, we expect the life expectancy for the solar cell to be 10 - 20 years. This is the most critical component in the panel. The new solar cells which are placed inside the solar panel will last longer. The fan component is double-row ball bearing and will achieve 30,000 hours of operation which corresponds to approx. 25 years of wear and tear. There is no maintenance on the panels as rain and morning dew will clean the surface of any dirt.

Does the unit make any running noise?
When it is running at full capacity, the acoustic pressure is approx. 40 db (plus/minus 2 db, depending on solar radiation). This corresponds to the noise from a very quiet extractor fan and we have not yet had any customers who have been bothered by the noise from the SolarVenti. Moreover, the noise level (air flow) can be adjusted using the fans regulator.

SolarVenti blows new air in. Where does the air come out again?
The system creates slight positive pressure in the house. This constantly “pushes� the old air out. The air will try to get out where the house is not tightly sealed, e.g. at doors, windows, ceilings and floors. You can send the air in the direction you want using the house’s air escape vents. If you position the air escape vent(s) at the opposite end of the house to the injection air duct, the warm air from the solar air collector will be optimally distributed throughout the whole house. If possible, let the air blow directly into the most important room and open the doors to other rooms.

Can I switch off the system if the summer is hot?
All models can be switched off.  The small systems can only be adjusted using the air injection vent on the ceiling or the wall. In addition, most of the systems- apart from the SV2 and SV3 are supplied with a variable electronic regulator that enables you to turn down the air flow. When the air flow is turned down the temperature of the injected air will increase.

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