The principles of the kinetic analysis of the crack mechanism of a reciprocal compressor are examined on the concrete example. During operation of a reciprocal compressor significant inertia forces are arising due to a quick displacement and direction change of the movement of the crank unit components, which can not be ignored because of high rotational speeds of the crankshaft. Before a dynamic design the kinematic analysis of the gear is usually performed determining paths, speeds, accelerations of the gear points. Up to now, in the universities, the kinematic analysis of mechanisms is a difficult task for students involved in refrigeration. The article will acquaint the reader with the theoretical base as well as with the sequence of the kinematic analysis of the crank mechanism of the reciprocal compressor to be performed using the graphanalytic method. The objective of the article is the reduction of the structured succession of calculation and plotting of the kinematic diagram of the crank mechanism of the reciprocal compressor.
Due to the high proportion of life support systems energy consumption it the total energy consumption of buildings, examined the mechanisms of energy accounting data with BIMtechnology. A technique for an experimental and calculated evaluation of the efficiency of heat recovery in these systems, which allows a technical and economic analysis of the saving effect from the use of energysaving equipment, both in energy and in financial terms is proposed. The test stand for testing equipment according to this method is proposed. Differences in the effectiveness of heat pump utilizers in their operation in different regions of the Russian Federation are shown.
The efficiency of cold storage of fresh mushrooms in РР, РЕ and ВОРР polymeric packages in combination with processing by accelerated electrons at energy of about 5 MeV was showed. During cold storage reducing mushroom mass losses 1,5-2 times, maturation retarding as well as storage life increasing up to 20-24 days in PP packages were defined.