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This article describes the experience and results of experimental study of the temperature distribution in the refractory lining of the gas and liquid fuel cyclone-vortex furnace (CVF). Temperatures were measured with type K thermocouples. Most of the thermocouples are located a depth of 25 mm from the surface combustion chamber. With increasing boiler load observed decrease in temperature and increase of plating unevenness of the temperature distribution in the combustion chamber. This is due to the redistribution of heat generated between the combustion chamber and the firebox as the load increases. The results of heat transfer studies in CVF will lead to a reduction in the thickness of the lining, modernization of the CVF structure. In the future, abandon the use of refractory lining in CVF

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This article describes the rationale for the development of a mathematical model of the thermal scheme of Vladivostok thermal power plant. Four types of turbines are installed at this plant, boiler units operate on coal and natural gas. This makes it difficult to effective load distribution between the turbine units. Application of simplified dependencies, built on the basis of the reporting data, allows to analyse the correctness of the load distribution between the units. The article provides an example of comparing the actual parameters of the plant and calculating based on the simplified characteristics of turbines. This example showing the loss of fuel equivalent from non-optimal load distribution. However, the use of such simplified characteristics has several shortcomings. These shortcomings do not allow using this as a universal method. There is a need to create a full-fledged mathematical model of thermal power plants. The model is developing on the basis of the Boiler Designer software package. The program has a modular structure and allows you to create mathematical models of each unit of equipment, and then, through the purpose of connections, assemble the thermal scheme of the station. This approach is actual for cross-linked heat and power plants, since it allows us to evaluate the efficiency of thermal scheme connections, and not just the operation of the equipment itself. The article provides a simplified model of the station, its advantages and disadvantages

We have carried out the determination of phosphorus (after mineralization) of samples of human pepsin and gastricsin purified on anion-exchange cellulose [2] by Filipowicz% method [1]. The purity of the samples of pepsin and gastricsin was shown by the results of a determination of the N-terminal amino acids. In the preparation of human pepsin, the only N-terminal amino acid was valine, and in the sample of gastriesin it was serine. To calculate the number of phosphorus atoms in the gastricsin molecule we used Tang and Tang's results [3] on the molecular weight of gastricsin (36 000). It was found that the gastricsin molecule contains one atom of phosphorus while human pepsin contains no phosphorus. At the same time, these enzymes possess similar catalytic activity [2, 4]. Consequently, the phosphate residue is not essential for the activity of the enzymes of the pepsin group [5-7].