The idea for the design and construction of bioclimatic beehives, arose from the need to improve the living conditions of bees within the hive. The construction of bee hives with extra insulation faces the only one aspect of the problem has to do with the safe wintering of bees.
But however this is no longer enough.
Our colonies need more help if we want to give us greater honey production. This can be done if we make their own "houses" energy-bioclimatic. This means to take advantage of the current favorable climatic conditions of the environment for the benefit of the climatic conditions of beehive.
What exactly does "Energy Bioclimatic beehive Promelis"
Although having the same dimensions as the standard, but the thickness of the body sides are not the same, while the thickness of two of them is changing and can be varied as shown in the following pictures.
All the beehives which have until now been manufactured sides with the same thickness.
This results in all types of beehives these only offer an insulation inside the space, which is proportional to their respective materials (wood, plastic etc.).
But this uniformity and stability of the thickness of the sides does not allow them to behave with energy way to exploit ie external environmental conditions in order to improve their internal conditions.
In other words, to heat or cool the interior of the beehives, depending on the needs of bees.
The «project» Energy Bioclimatic beehives was based on a series of scientific evidence, referred to the amount of energy annually consumes a beehive. So we wanted to build a beehives which to work energy which, taking advantage of renewable energy sources - sun and wind - to offer energy saving conditions all year round. Knowing that the amount of energy consumed by a hive, resulting from consumption of the honey itself collects, we put as a goal, through energy savings, reduce the consumption of honey as it needs all year round. We wanted to so to increase the annual performance in honey for the beekeeper. Specifically we took into consideration the following information:
1- From the total annual energy produces and consumes a beehive, 30% is allocated for wintering, 30% for annual functions - such as collecting nectar and pollen, ventilating, and builder of honeycombs etc. - and 40% is allocated for the development of the spawn - ie spring. In absolute numbers, the amount of heat it produces and consumes a hive are: The energy that brings back the beehives per trip every worker bee is ≈500 J or 0,000139KWh. The total energy collected in one year per bee colony is ≈5,000,000 kJ or 1390KWh (calculated on an annual population 200,000 bees.) This information was derived from scientific study: «Behavioral performance in adult honey bees is influenced by the temperature experienced during their pupal development» http://www.ncbi.nlm.nih.gov/pmc/articles/PMC165877/
2- The proper development of the spawn should be done at temperatures of 33oC to 35 oC.
3- Spawn Hatching below these limits, it creates poor individuals, who have a short life, while the spawn that hatches on the top of this limit (35 ° C) produces high quality foraging.
4- Maintaining this temperature is achieved by a particular specialty bee, which we call bees heaters. These can raise the temperature of their bodies very high from 34oC to 44 oC, but consuming large quantities of honey. Items 2-3 and 4 resulting from the scientific study: http://www.bbka.org.uk/members/forum.php?t=3817
5- The worker bees maintain the temperature inside the beehives, the desired levels, through movements of their bodies. For the case of winter, waving their pectoral muscles to produce heat and in the case of summer shake their wings to produce cool. In both cases consume large quantities of honey to achieve this.
6- metabolism single worker bees is improved when the temperatures inside the beehives is ideal, but also the most efficient foraging perform their work.
7- The Virgin Queens fertilized sooner and keep in their bag more sperm when fertilized, as temperatures in the space of beehives is ideal for the season. The data generated by the project: (Intensive Exploitation Systems Bee - Sophia Gounaris)
8- The daily solar radiation at the time of spring, in the various regions of our country, ranging from 4-6 Kwh / m². Such are the values of solar radiation and other European countries that produce honey, but most countries of the world that produce honey (such as USA, Australia, China, etc.).
9- The side surface of a standard beehives langstroth has surface 0,25CH0,50 = 0,125 m². This means that in the spring, this side because of the black color matte can collect 0.50 έως 0,75 KWh, daily thermal energy from the sun, depending on the region.
10- The thermal energy that corresponds to the work that would produce 0,50: 0,000139KWh = 3,600 έως 0,75: 0,000139KW = 5,400 collectors and even without consuming trickle honey !!!
11 On the other hand, a conventional beehives langstroth, not exploit only a very small part of this energy, due to the thickness of the sides (20-21 mm), and the pale dye - this is required to avoid overheating in summer. Instead, the Energy Bioclimatic beehives, due to construction, almost all that solar thermal energy is collected and transported to the interior, where it directly absorbs the beehive (queen, workers and juveniles).
12- The result of this excess heat is intense spawning the queen, the creation powerful populations, economic and orderly operation of the colony and finally the harvest larger amounts of honey for us beekeepers.
13- Experiments conducted in Israel, for the exploitation of solar heat from the colonies, resulted in large increases in production of honey
The result using bioenergy-bioclimatic beehive could be:
• Increases the production of the spring brood up to 50%.
• Achieves up to 30% greater production of honey.
• Saves 12% annually in food of bees.
• Ensures almost zero losses in winter.