Solar Collector Factsheet Flexipower FP58-30 - Institut für Solartechnik

~C1428Solar Collector FactsheetFlexipower FP58-30ModelFP58-30TypeEvacuated tube collectorManufacturer Vi Technology –Flexipower Group Michal PostAddress Partyzancka 78/92PL-95200 PabianiceTelephone +48 42 2260453Fax +48 42 2395288Emailinfo@vitechnology.plInternet www.vitechnology.plTest date 08.2008Performance test EN12975:2006Quality test EN12975:2006Solar KeymarkDimensionsTechnical dataTotal length 1.990 m Minimum flowrate 120 l/hTotal width 2.487 m Nominal flowrate 180 l/hGross area 4.949 m 2 Maximum flowrate 300 l/hAperture area 2.800 m 2 Fluid content 1.8 lAbsorber area 2.401 m 2 Maximum operating pressure 8 barWeight empty 102 kg Stagnation temperature 187 °CTypes of mountingFurther information Construction for sloping roof Units in different sizes available Integration into sloping roof Glazing replaceable On flat roof with stand Hydraulic connection Facade Copper pipe, nominal diameter 22 mmConstruction1 Glazing2 Heat-conducting metal sheet3 Heat pipe4 Vacuum5 AbsorberSPF Testing, Institut für Solartechnik SPF, Hochschule für Technik Rapperswil HSR, CH-8640 Rapperswil, Switzerland27.01.2012 / SCFv3.0en www.solarenergy.ch page 1/2

C1428Peak Power per collector unit W peakRelative efficiency η[kW] 2.0Solar irradiance G=1000 W/m 21.0Solar irradiance G=800W/m 21.81.60.81.41.20.61.00.80.40.60.40.20.20.00.0*0 20 40 60 80 T m-T100amb0 0.02 0.04 0.06 0.08 T0.1mPeak Power W peak 1846 W Reference Gross Aperture AbsorberThermal capacity* 33.7 kJ/K η 0 0.373 0.659 0.769Flowrate during test 160 l/h a 1 [WK -1 m -2 ] 1.22 2.16 2.52Fluid for test Water-Glycol 33.3% a 2 [WK -2 m -2 ] 0.0051 0.0091 0.0106*) Specific thermal capacity C of the collector without fluid, determined according to 6.1.6.2 of EN12975-2:2006Incident angle modifier IAM1.61.41.21.00.8Pressure drop Δp[Pa] 120010008006000.60.40.2IAMTIAML4002000.00 10 20 30 40 50 60 70 80 90θ00 50 100 150 200 250 300 [l/h]K1, transversal IAM at 50° 1.44 Pressure drop at nominal flowrateK2, longitudinal IAM at 50° 0.95 Δp = 424 Pa (T=20°C)SPF Simulation of systems using PolysunShort description of the systemClimate: Central Switzerland, orientation of the collectors: South,Cold water 10°C, Hot water 50°Surface demand**Number of collectorsSolar yield**Domestic hot water: Fss* = 60%Tank 450 l, collector inclination 45°,Daily energy demand 10 kWh (4-6 persons)Energy demand of the reference system 4200 kWh/yearWater pre-heating: Fss* = 25%2 Tanks: 1500 l & 2500 l, collector inclination 30°,Domestic hot water consumption 10’000 l/day (200 persons)Daily heat losses (circulation and tanks) 60 kWh,Energy demand of the reference system 191'700 kWh/yearSpace heating system: Fss* = 25%Combined storage1200 l, collector inclination 45°,Daily energy demand 10 kWh (4-6 persons), Building 200 m 2 , moderatelyheavy construction, well insulated, Heating power demand 5.8 kW (ambienttemperature -8°C), Energy demand space heating 12140 kWh/year,Energy demand of the reference system 16340 kWh/year4.71 m 21.7 collectors62.9 m 222.5 collectors13.6 m 24.9 collectors542 kWh/m 2764 kWh/m 2400 kWh/m 2*) Fractional solar savings: Proportion of the final energy that, thanks to the solar system, can be saved compared to a reference system.**) Surface demand and solar yield are given with respect to the aperture area.SPF Testing, Institut für Solartechnik SPF, Hochschule für Technik Rapperswil HSR, CH-8640 Rapperswil, Switzerland27.01.2012 / SCFv3.0en www.solarenergy.ch page 2/2