Course code LauZ5018

Credit points 3

Conditioning of Crop Products

Total Hours in Course81

Number of hours for lectures6

Number of hours for seminars and practical classes6

Number of hours for laboratory classes12

Independent study hours57

Date of course confirmation28.11.2011

Responsible UnitInstitute of Engineering and Energetics

Course developer

author prof.

Jānis Palabinskis

Dr. sc. ing.

Course abstract

The aim of the course is to master the basic principles, technologies and techniques of conditioning of agricultural products: pouring of the materials, volume mass, friction coefficient, moisture, hygroscopicity, storage regimes, storehouse design, technical solutions for providing of the storage regimes; kinds of product conditioning: drying, active ventilation, hermetisation, storage in the absence of oxygen in carbon dioxide, nitrogen medium; conditioning equipment, energetic; conveyers and their selection criteria.

Learning outcomes and their assessment

Knowledge of the basic principles of crop conditioning, properties of the materials to be conditioned and the equipment used. Homework.
Skills to evaluate the properties of materials to be conditioned and the peculiarities of processing and technical solutions of the applied equipment. 2 laboratory works, report and work defense.

Competences to condition the product and make independent decisions about its optimal implementation. 2 laboratory works, report and work defense. Test.

Course Content(Calendar)

1. Separability features of bulk materials - 3h.
2. Justification of the choice of conveyors - 3h.
3. Active ventilation of the product - 3h.
4. Product drying - 3h.
5. Chemical canning of products - 3h.
6. Product storage - 3h.
7. Test: Properties of crop production and general conditioning conditions - 3h.
8. Grass preservation methods fodder - 3h.
9. Grain mass conditioning methods - 3h.
10. Potato storage, storage modes - 3h.
11. Cabbage storages, storage modes - 3h.
12. Carrot storage, storage modes - 3h.
13. Onion harvesting, storage modes - 3h.
14. Fruit storages, storage modes - 3h.
15. Transportation of products - 3h.

16. Test: Conditioning conditions for a specific type of crop production - 3h

Requirements for awarding credit points

Students will be credited if they have successfully completed all laboratory work, written tests and completed homework.

Description of the organization and tasks of students’ independent work

Preparation for tests, using the literature given in the study program and consulting with the lecturer.

Criteria for Evaluating Learning Outcomes

The assessment of the study course test depends on the cumulative assessment of the test task and the study course tests.
The student can successfully pass the test and the passing test if at least 50% of the test questions are answered correctly.
The test grade is calculated as the arithmetic mean of the results of the tests passed

Compulsory reading

1. Engineering Principles of Agricultural Machines 2nd Edition/ Ajit K. Srivastava, Carroll E. Goering, Roger P. Rohrbach/https://fsantos.utad.pt/bibliografia/06Ajit_Srivastava.pdf, https://aulavirtual.agro.unlp.edu.ar/pluginfile.php/93684/mod_resource/content/0/Srivastava.pdf
2. Zāles lopbarības sagatavošanas tehnoloģijas un mašīnas / J.Pankovs, S.Ivanovs, D.Viesturs. Ulbroka: LLU Ulbrokas ZC, 2004. 125 lpp.

3. Ivanovs S., Lazovska V. Linu novākšanas un pirmapstrādei sagatavošanas tehnoloģijas un mašīnas. Ulbroka. 2007. 108 lpp.

Further reading

1. Donald B. Brooker, Fred W. Baakker - Arkema, Carl W. Hall. Drying and Storage of Grains and Oilseeds. New York, 1992. 450 p.

2. Shlomo Navarro, Ronald T. Noyes. The Mechanics and Physics of Modern Grain Aeration Management. Boca Raton: CRC Press, 2001. 320 lpp.

Periodicals and other sources

1. Žurnāls Saimnieks LV. Pieejams: http://www.saimnieks.lv

2. Žurnāls Agro Tops. Pieejams:https://www.la.lv/agrotops
3. . Profi Latvija. Žurnāls par profesionālu lauksaimniecības tehniku. Izdevējs SIA Baltic publishing group. ISSN 2256-0130. Pieejams: www.profilatvija.lv

Notes

Compulsory subject for the sub-program "Agricultural Technologies and Machinery" of the Master's study program "Agricultural Engineering"