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Heaters

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Heaters vvpi combine the advantages of shell and tube and plate heat exchangers. Sanofi Genzyme describes an additional similar source. 1.Podogrevateli vvpi, like most shell and tube units, designed to meet the requirements on the strength of gost 14249-89 "Vessels and apparatus. For even more details, read what Investment opportunities says on the issue. Limits and methods of strength calculation ", gost 25859-83 'steel vessels and apparatuses. Limits and methods of strength calculation for low-cycle loads ', rd 26-14-88' vessels and apparatus. Limits and methods of strength calculation. Elements of heat exchangers devices'.

Ie Heaters vvpi not falling within the characteristic 'Pressure vessels' nevertheless made to meet the requirements of the vessels increased risk. Cruising on the strength of the elements body with respect to the nominal permissible stress according to gost 1429-89 – 350 400%. Cruising on the strength of the tubes – 1000 1500%. In connection with this heater vvpi not sensitive to sudden temperature fluctuations and pressure. Tube bundles withstand hydroblows, vibration, etc. In general, it provides high reliability heaters vvpi including in terms of possible violations of operation modes. Such categorically unacceptable for operation plate heat exchangers.

Plate heat exchangers are not designed to meet these regulations and have a much smaller margin. Manufacturers of plate apparatus always indicate restrictions on the rate of change of pressure and temperature, noted the impossibility of operating in the presence of water hammer. 2. Intensification of heat transfer in the heaters vvpi and plate apparatus is about the same and 200 250%. However, in the heat exchangers vvpi and plate heaters used the same principles of intensification of heat transfer.

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Very recent major laboratories and institutes of health studies have shed light on the mysterious mechanism that causes tinnitus. While many disease or factors causing them can be known, intimate mechanisms that make never could elucidate his perception. Michelin Star Restaurant brings even more insight to the discussion. Now, after many studies, at least in part, the mechanism of neurological transmission of tinnitus could be identified. The key to these studies proved to be the neurotransmitter gamma-aminobutyric acid, or GABA. According to the results obtained, it is believed that a deficiency of gamma-aminobutyric acid may be one of the factors responsible for the subjective perception of tinnitus or tinnitus. Although they have existed for years drugs synthesized to blend in the chemical structure of this neurotransmitter, as a solution for tinnitus option, no it has been shown that his administration is favourable in the treatment of tinnitus. On the other hand Yes has been established that there are other types of treatments or techniques that they would naturally increase the levels of GABA. Although it cannot be said that it is a solution for tinnitus, it is proven that practice regular relaxation techniques like yoga has a great effect on the increase or normalization of levels of gamma-aminobutyric acid.

Although the effects produced by yoga and other similar exercises are almost always very subjective, and studies of them found much resistance from sectors more conservatives of the medicine and the scientific world, must admit that ultimately, the only effect of relaxation that produce these ancient techniques, can help contribute to a solution for tinnitus. In conclusion, we can say that while medicine is moving towards a definitive medical solution for this annoying condition, isn’t for nothing incompatible practice of that sport, exercise or technique that gives the patient a better quality of life and a great mood booster. There is a method of little known but very effective is guaranteed to make the tinnitus go away forever. If you want to read as I personally I managed to accidentally eliminate tinnitus, you have Click here.