Istrazivanja i projektovanja za privreduJournal of Applied Engineering Science

AGRICULTURAL TRACTOR CAB CHARACTERISTICS RELEVANT FOR MICROCLIMATIC CONDITIONS


ISSN: 1451-4117

E-ISSN: 1821-31977
Volume 9 article 198 pages: 323 - 330

Dragan Ruzic
University of Novi Sad, Faculty of Technical Science, Novi Sad, Serbia

Ferenc Casnji
University of Novi Sad, Faculty of Technical Science, Novi Sad, Serbia

The basic purposes of an agricultural tractor cab are to provide comfortable environment for an operator and to protect him from vibrations, noise and other adverse influences. The microclimatic features of middle-sized tractor cabs are the focus of this paper. The microclimatic conditions are related with design features that influence heat processes between the cab and the environment, including the effects on the operator. One of methods for improvement of the microclimatic conditions and for reducing of air-condition­ing energy consumption is prevention of cab heat gain, achieving this by appropriate heat rejection and insulation. Since the cab material characteristics and cab design play the main role in the heat transfer processes between the cab and the environment, these features are analyzed on existing middle-sized tractor’s cabs. The aim of the paper is to identify and evaluate most important influ­ences, in order to create the basis for microclimatic and energy consumption reduction aspects of a tractor cab design. The results showed that the cab glazing is probably the most influencing factor, where the selection of the appropriate properties could be the way for cab and operator heat load reduction.

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This research was done as a part of project TR31046 “Improvement of the quality of tractors and mobile systems with the aim of increasing competitiveness and preserving soil and envi­ronment”, supported by Serbian Ministry of Sci­ence and Technological Development.

ASHRAE Applications Handbook (1999). Chapter 32 - Solar Energy Use, ASHRAE

ASHRAE Fundamentals Handbook (1997). Chapter 3 - Heat transfer, ASHRAE

Bohm M., Holmer I., Nilsson H., Noren O. (2002). Thermal effects of glazing in driver’s cabs, JTI-rapport, 2002

Conceicao, E., Silva, M., Andre J., Viegas. (1998). A Computational Model to Simulate the Thermal Behavior of the Passengers Compartment of Vehicle, SAE Paper 1999­01-0778

Casnji, F., Ruzic, D., Muzikravic, V., Poznanovic, N., Stojic, B. (2003) Ergonom­ske karakteristike savremenih traktora snage 60-120 kW, Traktori i pogonske masine, 8(4), 7 - 12.

Fanger P. O. (1970) Thermal comfort, New York: McGraw-Hill

http://re.jrc.ec.europa.eu/pvgis/apps3/pvest.php, retrieved on April 2011

Incropera F. P., DeWitt D. P. (1981). Fun­damentals of heat and mass transfer, New York: John Wiley & Sons

Jahns G. von, Janssen J. (1982) Klimatizier- ung von Fahrerkabinen landwirtschaftlicher Fahrzeuge, Grundl. Landtechnik 32, 164 - 171.

Janssen J. (1984). Luftfuhrung in Fahrerk­abinen unter dem Gesichtspunkt der ther­mischen Behaglichkeit, Grundl. Landtechnik 34 (5), 198 - 205.

Karlsson, Anika (2007). Simulation of Cool­ing Demand in a Truck Compartment, Master thesis, Uppsala Universitet

Kozic, DJ., Vasiljevic B., Bekavac V. (1994). Prirucnik za termodinamiku, Beograd: Uni­verzitet u Beogradu, Masinski fakultet

Mc Adams, W. (1969). Prostiranje toplote, Beograd: Gradjevinska knjiga

Mitic, S. (2004). Uticaj zastitnih struktura trak­tora na povecanje bezbednosti rukovalaca u eksploataciji, Istrazivanja i projektovanja za privredu (4, 5), 41 - 49.

Parsons K. (2003). Human thermal environ­ments: The effects of hot, moderate and cold environments on human health, comfort and performance, 2nd ed. Taylor & Francis, Lon­don

Ruzic D, Casnji F (2011). Personalized ven­tilation concept in mobile machinery cab, International Journal for Vehicle Mechanics, Engines and Transportation Systems, 1(37), 7 - 22.

Ruzic, D. (2010). Improvement of thermal comfort in a passenger car by localized air distribution, 11th International Symposium “Interdisciplinary Regional Research ISIRR 2010”, Szeged 13-15 October, Abstracts, 210 - 210.

Ruzic, D., Casnji F., Muzikravic V. (2007). Karakteristike stakla kao faktor od uticaja na mikroklimu u traktorskoj kabini, Traktori i pogonske masine, 4(12), 92 - 97.

Saint-Gobain Sekurit, Glazing Manual, 2003

SRPS ISO 4252 (1997). Agricultural tractors - Operator’s workplace, access and exit - Di­mensions

SRPS M.L2.156 (1994). Agricultural and for­estry wheeled tractors - Operating space

Tavast, J. (2007). Solar Control Glazing for Trucks, Master thesis, Uppsala Universitet

UN ECE Regulation No. 71 (1987) - Driver’s field of vision of agricultural tractors, Geneva: United Nations