– Axial ventilators in a square casing out of steel plates with an integra-ted suction nozzle;

– Lamella-like shutter flaps arranged on the pressure side;

– three-phase alternating current motor; the six-winged blower wheel isdriven by a V-belt.

(Description and technical data cf. Page 7.)

Deutsche Landwirtschafts-Gesellschaft e.V.

Prüfstelle für Landmaschinen

Short description

Manufacturer and registering company

TERMOTECNICA PERICOLI srlP.O. Box 262

Regione Rapalline 44I-17030 Campochiesa d’Albenga SV

Telephone: +0182/589006Telefax: +0182/589005

Internet: www.pericoli.com

TERMOTECNICA PERICOLI

Axial ventilatorsTERMOTECNICA PERICOLI EOS 50/1,0 and EOS 50/1,5

DLG Test Report 5196

DLG Test Report 5196 2

Evaluation – short version

Test criterion Test result

Suitabilityfor the ventilation of greenhouses and (under certain conditions) the ventilation of closed stalls in facilities characterized by little flow resistance or for air circulation or recirculating air operation

Pressure increase and volume flow– at a pressure increase of 0 Pa

EOS 50/1,0 volume flow 35300 m3/h EOS 50/1,5 volume flow 40800 m3/h

– at a pressure increase of 30 Pa and 70 PaEOS 50/1,0 volume flow 29900 m3/h and 18800 m3/h, respectivelyEOS 50/1,5 volume flow 36200 m3/h and 28800 m3/h, respectively

Power input– at rated tension and a pressure increase of 0 Pa and 70 Pa

EOS 50/1,0 1170 W and 1380 W, respectivelyEOS 50/1,5 1660 W and 1930 W, respectively

– specific power input at a pressureincrease of 0 Pa lowEOS 50/1,0 33,2 W/(1000 m3/h)EOS 50/1,5 40,7 W/(1000 m3/h)

Enginesufficiently dimensioned

Noisedepending on the direction

sound pressure level at a distance of 7 m in the flow direction 65 dB(A) (EOS 50/1,0) and 64 dB(A) (EOS 50/1,5)

Service lifeaccording to present knowledge and experience with greenhouse ventilation good

MaintenanceRequirements very low

Instructions of assembly and operationdetailed

Planning data for ventilation systems are not includedList of spare parts is included

Work safetycertified by DPLF

DLG Test Report 5196 3

Test results

Suitability

The axial ventilators TERMOTECNI-CA PERICOLI EOS 50/1,0 and EOS50/1,5 are suitable for the ventila-tion of greenhouses and under cer-tain conditions for the ventilationof closed stalls in facilities charac-terized by little flow resistance orfor air circulation or recirculatingair operation.

Pressure increase and volume flow

At rated tension (400 V), the mea-sured pressure/volume flow curvewhich is important for ventilationranges between a pressure increaseof approximately ∆pfa = 0 Pa and∆pfa = 30 Pa (facilities character-ized by little flow resistance). In the EOS 50/1,0, the correspon-ding volume flow at these operat-ing points is V

.= 35300 m3/h and

29900 m3/h, respectively. In theEOS 50/1,5, it is V

.= 40800 m3/h

and 36200 m3/h, respectively. If the pressure increases to 50 Pa or70 Pa, the volume flow diminishesto 25400 m3/h and 18800 m3/h

respectively in the EOS 50/1,0. Inthe EOS 50/1,5, it decreases to32900 m3/h and 28800 m3/h res-pectively (cf. Tables 1 and 2 andFigures 1 and 2).

Electric power input

At rated tension and a pressureincrease of 0 Pa and 30 Pa,the EOS50/1,0 requires an electric powerinput of 1,170 W and 1,270 Wrespectively. In the EOS 50/1,5, thevalues are 1,660 W and 1,780 Wrespectively. They grow to 1,380 W(EOS 50/1,0) and 1,930 W (EOS50/1,5) at a pressure increase of70 Pa (cf. Tables 1 and 2, Figures 1and 2). Specific power input(power input per 1,000 m3/h vol-ume flow) is low1) and amounts to33.2 W/(1,000 m3/h) (EOS 50/1,0)and 40.7 W/(1,000 m3/h) (EOS50/1,5) in free impelling and ex-pelling operation (pressure increase0 Pa). At a pressure increase of30 Pa and 70 Pa, the specificpower input required by the EOS50/1,0 grows to 42.5 and 73.4 W/(1,000 m3/h) respectively and to49.2 and 67.0 W/(1,000 m3/h)

respectively in the EOS 50/1,5 (cf.Tables 1 and 2).

Engine

The engine is sufficiently dimen-sioned. Current input rangesbetween 2.41 A (at a pressureincrease of 0 Pa) and 2.63 A (at apressure increase of 70 Pa) in theEOS 50/1,0 and between 3.22 Aand 3.55 A in the EOS 50/1,5.

At the greatest current input andduring continuous operation, thetemperature of the motor windingwas approximately 68 K2) (EOS50/1,0) and 59 K (EOS 50/1,5)above the ambient temperature(permissible maximum value115 K). The motor features a starconnection and can be switcheddirectly. The motor should beequipped with a protective switch.

0 36 35300 1170 33,2 2,41 408 0 30,110 43 33600 1200 35,7 2,44 406 7,8 33,520 50 31900 1230 38,6 2,47 405 14,4 36,030 56 29900 1270 42,5 2,51 404 19,6 36,640 63 27800 1310 47,2 2,55 403 23,6 37,150 69 25400 1350 53,2 2,59 402 26,1 36,160 75 22400 1370 61,1 2,62 401 27,3 34,170 80 18800 1380 73,4 2,63 401 26,5 30,380 87 15400 1420 92,3 2,67 399 24,1 26,290 94 12300 1480 120,8 2,70 398 20,7 21,6

Table 1:Performance values of the axial ventilator TERMOTECNICA PERICOLI EOS 50/1,0measured at an electric tension of 400 V (the values apply to air having a density of 1.2 kg/m3)

Pressure Total pressure Volume- Elektric Specific Elektric current- Impeller Effiency6)

increase4) increase flow power input power input input rpm∆pfa ∆pt V

.P Pspez I nL ηfa ηt

Pa5) Pa m3/h W W A min-1 % %_______1000 m3/h

4) Here, pressure increase ∆pfa correponds to the older term static pressure difference ∆pst

5) 1 Pa (Pascal) = 1 N/m2

6) Ventilator including the motor; efficiency ηfa = ∆pfa V.

/P resp. ηt = ∆pt V.

/P (∆pt = ∆pfa + pd; pd = dynamic pressure)

1 grading: low (≤ 45 W/(1000 m3/h)), medium (> 45 ≤ 55 W/(1000 m3/h)),high (> 55 W/(1000 m3/h))

2 Temperature differences are given in Kelvin (K).1 K corresponds to 1°C.

DLG Test Report 5196 4

0 49 40800 1660 40,7 3,22 471 0 33,110 55 39300 1700 43,3 3,26 470 6,4 35,320 62 37800 1740 46,1 3,30 469 12,1 37,230 68 36200 1780 49,2 3,36 468 17,0 38,540 75 34600 1820 52,6 3,42 467 21,1 39,550 81 32900 1860 56,6 3,46 467 24,5 39,960 88 30900 1900 61,4 3,51 466 27,1 39,870 94 28800 1930 67,0 3,55 465 29,0 39,080 100 26200 1960 74,8 3,58 465 29,7 37,190 106 23200 1980 85,5 3,62 465 29,2 34,3

100 112 20100 2010 99,9 3,64 464 27,8 31,1110 119 17300 2060 119,1 3,70 463 25,7 27,7120 126 14400 2110 146,1 3,75 462 22,8 24,0

Table 2:Performance values of the axial ventilator TERMOTECNICA PERICOLI EOS 50/1.5measured at an electric tension of 400 V (the values apply to air having a density of 1.2 kg/m3)

Pressure Total pressure Volume- Elektric power Specific power Electric Impeller Effiziency6)

increase4) increase flow input input current input rpm∆pfa ∆pt V

.P Pspez I nL ηfa ηt

Pa5) Pa m3/h W W A min-1 % %_______1000 m3/h

4) Here, pressure increase ∆pfa correponds to the older term static pressure difference ∆pst5) 1 Pa (Pascal) = 1 N/m2

6) Ventilator including the motor; efficiency ηfa = ∆pfa V.

/P resp. ηt = ∆pt V.

/P (∆pt = ∆pfa + pd; pd = dynamic pressure)

Figure 2Figure 1Characteristic curves as a function of the volume flow at rated tension (400 V) for the EOS 50/1,0 ((Figure 1) and for EOS 50/1,5 (Figure 2)Above: efficiency in relation to pressure increase ∆pfa and total pressure increase ∆pt;Middle: electric power input; Below: pressure increase ∆pfa and total pressure increase ∆pt

The electrical installation may onlybe carried out by a trained electri-cian.

The motor is not designed for thecontrol of the rotational speedthrough tension reduction. If a fre-quency converter is used for con-trol, the manufacturer´s instructionsmust be observed.

Noise

In normal operation, the noisecaused by the ventilator is depend-ent on the direction and is influ-enced only slightly by the operat-ing point.

In freely impelling and freelyexpelling operation (0 Pa pressureincrease and outdoor installation ofthe ventilator), a sound pressurelevel of 65 dB(A) and 64 dB(A) wasmeasured for the EOS 50/1 andEOS 50/1,5 respectively at a dis-tance of 7 m from the ventilator in

the flow direction. At right anglesto the flow direction, the measuredsound pressure levels were 57 dB(A)and 63 dB(A) respectively (cf. Fi-gure 3).

With regard to the impact of noiseon the neighbourhood, the readeris referred to the VDI Guideline2058 leaf 1 “Evaluation of Work-Related Noise in the Neighbour-hood” and the “Technical Regula-tions Regarding Noise Protection”(TA Lärm).

Service life

According to current knowledgeand experience (based on green-house ventilation), service life islong.

When the ventilators are used forstall ventilation, the evaluation ofsurface protection is less satisfacto-ry because the cutting edges of thesteel casing are not galvanized

and, hence, not protected againstcorrosion.

Maintenance

Maintenance requirements are verylow. They are limited to checks ofV-belt tension and V-belt wear.

V-belt tensioning is easy: unscrewthe protective grid on the suctionside, loosen and shift the motorholder.

Instructions of installation and operation

The instructions of installation andoperation are detailed. They con-tain information regarding installa-tion, commissioning, maintenance,and safety. The instructions do notcomprise planning data for ventila-tion systems. A list of spare parts isincluded.

DLG Test Report 5196 5

Figure 3: Sound pressure level at a distance of 7 m from the ventilator (freely impelling and expelling operation), EOS 50/1,0 inner row of numbers; EOS 50/1,5 outer row of numbers

Description and technical data (measured values)

Casing

– Square casing consisting of se-veral riveted parts with acentrally installed suctionnozzle;

– Casing and suction nozzle out of galvanized steel plates (1 mmthick);

– Protective grid bolted on thesuction side (wire thickness3 mm, mesh width 73x16 mm);

– Protective grid on the pressure(or expelling) side available onrequest;

– Motor holder on the upper leftside;

– A perpendicular steel tube bracebolted to the casing carries theblower wheel axle;

– Eight shutter lamellas (alumini-um plate) arranged on the ex-pelling side opened automatical-ly by the air flow.

Blower wheel

– Six-winged; formed single wingsout of aluminium plates (2.2 mmthick) riveted to a star hub;

– Star hub and blower wheel hubout of diecast aluminium;

– Blower wheel hub on ball bearings (encapsulated, mainte-nance-free axial angular ballbearing, acting on two sides)

– Blower wheel hub placed on theblower wheel axle (socket pinbolt) and bolted to the steel tubebrace.

Drive EOS 50/1,0

– Three-phase alternating currentmotor, manufacturer ABB Mo-tors, type B3 with a 1-fold V-beltpulley, rated power 0.75 kW,power input between 1,170 W(0 Pa) and 1,380 W (70 Pa),tension 400 V (star connection),current input 2.41 to 2.63 A,rated rpm 1,400 min-1, type ofprotection IP 55, insulation class F,

– V-belt pulley on the motor side,effective diameter 87 mm

– V-belt pulley on the blowerwheel side, effective diameter300 mm

– transmission ratio 1: 0,29;

– V-belt type name 13 A 86.

Drive EOS 50/1.5

– Three-phase alternating currentmotor, manufacturer ABB Mo-tors, type B3 with a 1-fold V-beltpulley, rated power 1.0 kW,power input between 1,660 W(0 Pa) and 1,930 W (70 Pa),tension 400 V (star connection),current input 3.22 to 3.55 A,rated rpm 1,430 min-1, type ofprotection IP 55, insulation class F,

– V-belt pulley on the motor side,effective diameter 98 mm

– V-belt pulley on the blowerwheel side, effective diameter300 mm

– transmission ratio 1: 0,327;

– V-belt type name 13 A 86.

DLG Test Report 5196 6

Main measurements and weight

Casing – width 1380 mm– height 1380 mm– depth 400 mm

suction nozzle, inside diameter 1267 mmblower wheel diameter 1259 mmweight EOS 50/1,0 69,5 kg

EOS 50/1,5 74,0 kg

Planning aids

When the ventilators are used forgreenhouse ventilation, the AEL3)

publication Report 13 “ PlanningAids for the Use of Electric Con-sumers in Greenhouse Horticul-ture” should be observed as well asDIN 18910 “Heat Protection ofClosed Stalls” and (if applicable)the VDI Guideline 3472 “EmissionReduction; Animal Housing –Chickens” for use in stalls.

Survey result

A survey among the owners of ven-tilators of the same type could notbe carried out because the sale ofthe ventilators is just beginning inGermany.

Work safety

The axial ventilators TERMOTECNI-CA PERICOLI EOS 50/1,0 and EOS

50/1,5 were evaluated by the Ger-man Test Station for Agriculturaland Forestry Machinery (DPLF).From the viewpoint of work safetytechnology, there are no reserva-tions about the use of the ventila-tors (equipped with a protectivegrid on both the suction- and thepressure side).

3) AEL-Arbeitsgemeinschaft für Elektrizitäts-anwendung in der Landwirtschaft e.V., Am Hauptbahnhof 12, D-60329 Frankfurt/Main

DLG-VerlagEschborner Landstraße 12260489 Frankfurt am MainTelefon: 0 69/24 78 8-451Fax: 0 69/24 78 8-480

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DLG Test Report 5196 8

Deutsche Landwirtschafts-Gesellschaft e.V.Prüfstelle für LandmaschinenMax-Eyth-Weg 1, D-64823 Groß-UmstadtTelefon: 0 6078/96 35-0, Fax: 0 6078/96 35-90E-Mail: Tech@DLG-Frankfurt.deInternet: www.dlg-test.de

Deutsche Landwirtschafts-Gesellschaft e.V.Prüfstelle für LandmaschinenLerchensteig 42, D-14469 PotsdamTelefon: 03 31/5 6702-0, Fax: 03 31/5 6702-90E-Mail: Tech@DLG-Frankfurt.deInternet: www.dlg-test.de

October 2003© DLG

www.dlg-test.com

Test

Performance measurements were carried out on the ventilatortest stand of the DLG Test Stationaccording to DIN 24163. Themeasurements were performed atthe rated tension of 400 V, 50 Hz.

For reasons of work safety techno-logy, a protective grid on the ex-pelling side was also required. The performance measurementswere carried out without this grid.The resulting volume flow reduc-tion which must be expected isvery small (below 2% according to experience).

Realization of the tests

DLG-Prüfstelle für Landmaschinen,Max-Eyth-Weg 1, 64823 Groß-Umstadt

Reporting engineer

Dipl.-Ing. F. Niethammer, Groß-Umstadt

DLG test panel

Prof. Dr.-Ing. M. Gabi, Karlsruhe

Dipl.-Ing. agr. G. Hack, Bonn

Dipl.-Ing. D. Koblenz, Waldenburg

Dipl.-Ing. D. Kohlmeier, Hannover

Prof. Dr. H.-F. Wolfermann, Hargesheim

Published

with the support of the FederalMinistry of Consumer Protection,Food, and Agriculture.

ENTAM – The European Network for the Testing of Agricultural Machines is theassociation of European test centres. It is the goal of ENTAM to spread test resultsEurope-wide to farmers, agricultural machinery dealers and manufacturers.

You will find more information about the network under www.entam.com or underthe e-mail address: info@entam.com