STUDIES AND RESEARCH REGARDING THE UNITARY ENERGY CONSUMPTION OF A RECIRCULATING AQUACOL SYSTEM

This paper aims to highlight the consumption of electricity and caloric energy consumed by a recirculating aquaculture system for the growth of aquatic life. The energy needed to operate a recirculating aquaculture system for fish farming is divided into two categories, namely the electricity needed to operate various technological equipment, the main equipment in a recirculating aquaculture system that uses electricity being recirculation pumps, mechanical filters (some types), UV sterilization facilities and aeration systems. The second category of energy consumed is the caloric energy required for heating / cooling the water in the system and the hall

THEORETICAL ASPECTS OF THE AERATION DRYING PROCESS WITH APPLICATION IN THE HAY TECHNOLOGY

In the current context of the development of mechanized agriculture in several directions in the field of feed storage needs appear in the effective implementation of the drying method used. In terms of maintaining higher production achieved by reducing losses of fodder harvesting and secondly by increasing the number of cycles of harvest due to reduced time of harvest (representing the time elapsed mowing fodder plant and to store hay), outline the need for a more careful study of the drying process. This paper presents some theoretical aspects that determine and control the drying process used in technology of hay

EXPERIMENTAL RESEARCHES ON EXTRUSION PROCESSING OF SOYBEAN SEEDS FOR THEIR SUPERIOR CAPITALIZATION IN ANIMAL FEEDING

The extrusion technology is one of the perspective and efficiency processes, combining hydrothermal and mechanical processing of raw material (soybeans seeds), allowing obtaining new-generation products and components with predetermined properties, with a new structure called instant products, which are successfully used in animals fodder ration. This paper presents the installation for soybean seeds superior capitalization -IVSS (consist of screw conveyor, supply system, extruder, cooling system, mobile belt conveyor and a unit for command and control) and the experimental research in the establishment of its optimal operating parameters. Taking into consideration all this aspects, this project designed at INMA Bucharest tries to transform typical farmer in professional livestock farmer which capitalize on the innovative technologies established by research

CONSIDERATIONS ON THE IMPORTANCE OF SEED SEPARATION TECHNOLOGY BY AERODYNAMIC PROPERTIES

The article is aimed at agricultural entrepreneurs interested in the implementation of organic seed production technologies in their own units with the help of the Seed Cleaning Installation - ICS.In order to store, process or capitalise the agricultural products resulting from the harvesting process, they must undergo a pre-cleaning process that can be done depending on the aerodynamic properties of the seeds

TECHNICAL ASPECTS ON DYNAMIC BEHAVIOR OF THE SEMITRAILERS WITH SUSPENSION HITCH

An efficient means of transport, over short distances and heavy-duty traction on roads maintained or unmaintained field, agricultural land is considered system tractor - trailer. This article presents the results of experimental research on the dynamic behavior of the system tractor - trailer suspension system provided with agricultural roasted. The variety of constructive solutions for hitches with suspension motivated interest in experimental research of the effects caused by the introduction of elastic elements (leaf springs), fried farm semitrailer. They studied three variants of hitches compared with suspension and without suspension version. To highlight how it influenced the dynamic behavior of the studied system, were determined and analyzed for the following parameters: its spectrum of frequencies, maximum amplitude of vertical acceleration root mean square of the accelerations respectively

CONSIDERATIONS REGARDING THE GENERAL RULES OF PROPER EXPLOITATION OF TYRES FROM THE AGRICULTURAL EQUIPMENT

With the development of mechanized agriculture involving the use of self-propelledmachinery with powers and large capacities, the soils are subjected to intense compaction processes, especially when these have high humidity. In this context the rational use of tires represent one of the measures of reducing the compaction and also the fuel consumption and implicitly the environmental pollution, this paper presenting a set of general rules intended to support the operators so that the characteristics of the machine to be used at full capacity, with optimal consumptions of resources

Mulcirea şi fertilizarea ca principal mijloc tehnologic într-o cultură organică de broccoli

The purpose of the presentpaper is to evaluate the influence of mulching and fertilization on an early broccoli crop grown according to organic farming norms. The research was carried out in the experimental field of the Agronomic University of Iaşi, Romania. In the bifactorial experiment, the influence of mulching with three graduationswas tested-unmulched-Ct, mulching with polyethylene foilof 15 and 30 microns thick,as well as the fertilization with three graduations -unfertilized-Mt, organic fertilization and application of microorganisms, under the conditions of the years 2018 and 2019. The culture was established fromseedlings of42 days, in strips of 2 rows each, the distance between strips beingof80 cm and between rows of 60 cm. The distance between plants was of 25 cm,resulting in a density of about 57 thousand plants per hectare. The obtained results indicate increases inthe yield,in the case of the mulched and organicallyfertilized variants, the best yields being obtained in the case of the mulched variant with 30 microns foil and organically fertilized with Orgevi

RESEARCH CONCERNING THE ACHIEVEMENT OF SOME APPLES SORTING EQUIPMENTS

According to the present interest of the government to encourage the fruitconsumption by the scholars, especially the apple consumption, two functional model of technical equipment for sorting apples have been designed, manufactured and tested in INMA Bucharest. These equipments can be used for sorting also others fruits with spherical shape such as oranges, peaches, grapefruits etc. The mechanized sorting process conducts to valorisation of the farmer’s production and to increase their turnover, thus is necessary to analyse and improve this process, by optimizing the working parameters

INNOVATIVE SOLUTIONS FOR VERTICAL TRANSPORTATION OF GRAIN SEEDS AND TECHNICAL PLANTS

In order to provide a technical and material basis which allows the best possible preparation of grain seeds and technical plants before being processed, consumed or stored, at the level of the European norms in the field, including compliance with the ecological requirements, a technical equipment is needed to respond all these requirements. The paper presents a belt elevator, with buckets, which is an integral part of the technological flows in silos, seed conditioning plants, FNCs, beer factories, oil factories and is intended for the vertical transportation of granular and powdery products, hence an effective and efficient solution in this field

EXPERIMENTAL RESEARCH ON ENERGY AND OPERATING PARAMETERS OF THE TILLER M7.5 + REVERSIBLE PLOW PR1 AGGREGATE

This paper shows some information about the experimental research made todetermine the operating parameters of an aggregate which consists of a 7.5 hp tiller, symbolized M7,5 and a reversible plow with a band, symbolized PR1. The researches were carried out in real working conditions, the ultimate goal being to promote the marketing of the mentioned machine. To achieve optimal conditions for growing plants in general, and vegetables particularly in small farms and individual households, a good quality plowing it’s essential. This work can be realized with smaller equipment and addequate working capacities such as tillers in aggregate with technical working equipments, these being the ideal solution to meet the needs of small farmers