Rezultaty - Sit M.L.

The automatic guidance systems of tractors for soil cultivation in vineyards have attracted the attention of researchers since the second half of the twentieth century. The purpose of this paper is to investigate the driving quality of an automatic guidance system (AGS) for a caterpillar tractor uni...

Szczegółowa specyfikacja

The article presents the installation based on the approach using the integration of the carbon dioxide heat pump in pasteurization and cooling installation for milk and in installations for preparing of hot and "icy" water. The scheme differs from the prototype by the use of additional he...

Szczegółowa specyfikacja

The work is devoted to centralized heat supply systems based on CHP plants and the use with them heat pumps (HP) on carbon dioxide as refrigerant. Heat pumps are used in heat supply sys-tems for buildings and use the heat of the outside air and, at the same time, the heat of the return network water...

Szczegółowa specyfikacja

A heat pump scheme embedded into the installation for pasteurization and cooling of milk products is developed. A scheme of gas cooler automatic control system is considered. Methods of autonomous control of heat pump gas cooler and evaporators are presented as well.

The aim of the article is to elaborate and to investigate the automatic control system of pressure in front of evaporators of the multifunctional heat pump, which has several condensers and several evaporators. The control system must reduce the value of pressure perturbations acting on evaporators...

Szczegółowa specyfikacja

The article describes the district heating system, in which part of the heat of return water thermal power is used to supply heat to the district heating puThe article describes the district heating system, in which part of the heat of return water thermal power is used to supply heat to the distric...

Szczegółowa specyfikacja

The goal of the present work is to elaborate the scheme of the disturbance compensation system, which is influencing the level of refrigerant consumption in evaporators and gas coolers of the heat pump embedded in the milk pasteurization and cooling installation, as well as, to design the automatic...

Szczegółowa specyfikacja

A diagram of the heat pump station (HPS) for the central heat supply station of the district heating system, which gets the power from the CHP plant is examined. A block diagram of the control of the system and compressor pressure control system are examined. The description of the control laws of e...

Szczegółowa specyfikacja

It is studied the model of the heat pump station controllable loop of an intermediate heat-transfer agent for the use in wineries. There are demonstrated transients after the disturbing action of the temperature on the input of cooling jacket of the fermentation stirred tank. There are compared diff...

Szczegółowa specyfikacja

The block diagram of an industrial carbon dioxide heat pump working in a supercritical cycle, with two evaporators included in parallel working at different temperature levels (mainly for wine-making factories) is developed. Heat pump is intended for simultaneous production of heat and cold and work...

Szczegółowa specyfikacja

The work is devoted to control systems for hybrid heat pumps using the heat of return network water and outside air, designed to operate in district heating systems based on CHPP. The aim of the research is to develop control systems for heat pump operating on qualitative, quantitative and quantitat...

Szczegółowa specyfikacja

There are elaborated schemes of installations for pasteurization and cooling of dairy foods with heat pumps introduced in there schemes. Schemes distinguish oneself by the possibility of using of additional useful heat for getting hot water for technological purposes.

It is performed analisys of the use of efficiency of the use of vortex tube in heat pump with carbon dioxide as the refrigerant. Heat pump is desinated for parallel production of of heat on one temperature level and cold on two temperature levels. Scheme is compared with heat pump in which ejectors...

Szczegółowa specyfikacja

Dynamic characteristics of heat pump gas cooler obtained by means of the solution of the dynamics equations in partial derivatives are examined. Control system of the heat pump used for the heating of the heating–system water, supplied from CHP to the district heating system is examined. Possibility...

Szczegółowa specyfikacja

Possibility of realization is shown and the control system of a difference of pressure between an exit and an input of the compressor of the heat pump on carbon dioxide working at variable thermal load, and discharge and suction pressures by means of two control valves connected in series is develop...

Szczegółowa specyfikacja

An overview of robots used in the power industry for diagnostics of power lines, cable lines, for the control, monitoring and maintenance of wind turbines, in nuclear energy, for optimum orientation of solar photovoltaic plants and solar panels for cleaning. Equations of statics and dynamics of robo...

Szczegółowa specyfikacja

The scheme of a bivalent heat pump (BHP) is considered, using both the heat of the water from the return network and the heat of the outside air as low-potential heat sources (LPH). The aim of the work is to create a BHP circuit that provides functioning at the variable heat load temperature. The go...

Szczegółowa specyfikacja

The problem of coordination of the values of the refrigerant flow through the evaporators and gas coolers of the heat pump for the simultaneous production of heat and cold is studied. The compensation of the variations of the total flow through the evaporators is implemented using the variation of t...

Szczegółowa specyfikacja

The work is devoted to the temperature control system at the outlet of a shell and coil heat exchanger with a variable heat exchange area, subjected to a change in the surface area by changing the level of the heated coolant in the heat exchanger. The aim of the study is to develop a model for the p...

Szczegółowa specyfikacja

The paper discusses options for district heating systems, including thermal power plants and heat pumps installed in individual heating centers of multi-story buildings. The aim of the work is to evaluate the energy efficiency of the options under consideration and the method of connecting piping to...

Szczegółowa specyfikacja