OSPOSOBLJAVANJE STANICE ZA TESTIRANJE SUNCEVIH KOLEKTORA  

Ucesnici:  E. Kulic, M. Koric,  
S. Sirbubalo, H. Lulic 
 

1.0 UVOD 

Za potrebe industrije BiH (Unioninvest) razvijen vlastiti vodom hladjeni ravni sunCev kolektor tipa sendvica, koji moze sluziti i kao element gradjevinske konstrukcije (zid ili krov). Paralelno sa razvojem i testiranjem (po ASHRAE proceduri) kolektora razvijeni su i odgovarajuci vlastiti matematski modeli i algoritmi za simulaciju odnosno projektovanje sistema za korištenje sunceve energije za pripremu sanitarne vode i zagrijavanje objekata, bazirani na metodu f - Dijagrama i TRANSYS-a. Projektovano je više desetina rješenja, a izvedeno je nekoliko objekta, od kojih je najveci hotel “Libertas” u Dubrovniku (Hrvatska) sa 600 m2 kolektorske površine. Za projektno rješenje za dom zdravlja “Dr. Safet Mujic” u Mostaru dobijena je bronzana plakete za inovacije na Jugoslavenskom takmicenju za inovacije i unapre?enja u zaštiti okoline, Beograd, 1979. Nize su prikazana slike eksperimentalne test stanice, geometrije kolektora, kao i rezultati nekih ispitivanja, a navode se neki od relevantnih radova iz ove oblasti. 

2.0 IZRADA-RAZVOJ VJEZBE ZA TESTIRANJE EFIKASNOSTI SUNCEVIH KOLEKTORA 

Tokom ratnih dejstava (1992-1995) postojeca ispitna stanica je onesposobljena za rad. Ostala je prakticno bez kompletne instrumentacije i nekih bitnih elemenata za njeno funkcionisanje. 

Fakultet ce dobiti više kolektorskih polja (dimenzija ca. 1x2 m ) od nekih renomiranih proizvodjaca kolektora (npr. IMP- Ljubljana). 

Za edukacione potrebe studenata na dodiplomslom i postdiplomskom studiju zeli se razviti laboratorijsaka vjezba za odredjivanje efikasnosti suncevih ravnih vodom hladjenih kolektora. 

U kasnijoj fazi aktivnosti ce se stecena znanja i iskustva, uz paralelnu edukaciju maladih kadrova, razviti ekspertiza za razvoj odnosno testiranje ovakvih proizvoda za potrebe BiH privrede i/ili okruzenja. 
 

3.0 POTREBNA OPREMA 

U prilozima 1 do 4 navedena je specifikacija potrebne opreme sa okvirnim cijenma za osposobljavanje Stanice. 
 
 
 

 RECONSTRUCTION OF SOLAR 
COLLECTOR TEST STATION 

Participants:  E. Kulic, M. Koric,  
S. Sirbubalo, H. Lulic 
 

1.0 INTRODUCTION 

For the needs of B&H industry (e.g. Unioninvest, Sarajevo) own water-cooled flat solar sandwich collector is developed. The collector can be used as a part of the construction (wall or roof element). In parallel to collector development and testing on own universal test station (ASHRAE procedure used), own relevant mathematical simulation model and alghoritm, as well as relevant design procedure based on TRANSYS and f-Chart approach are developed. Own experimental results for solar collector efficiency and relevant design procedures have been used to design several dozens systems for solar energy use for sanitary water preparation and building heating systems. 

Some of designed and built systems are: Hotel “Libertas” – Dubrovnik (Croatia) with 600 m2 of solar collector area, in combination with heat pumps, for heating and sanitary water preparation; Hotel “Labineca” – Gradac (Croatia), 300 m2, for sanitary water heating; Military camps “?apljina” and “Mostar” (B&H), etc. 

For the design solution of Health centre “Dr Safet Muji?”- Mostar, bronze plaque for Innovations is obtained, on Yugoslav Competition for innovations and advancements in environmental protection, Belgrade, 1979. 

Figures show the solar collector test station, solar collector geometry, as well as some of the experimental results. Some of the publications are cited, also. 

2.0 DEVELOPMENT OF LABORA-TORY SET-UP FOR TESTING OF SOLAR COLLECTORS 

During the war (1992-1995) the existing solar collector test station has become inoperable. It is left practically without all instrumentation and some essential parts for its operation. 

Faculty will receive as donation a number of collector fields (dimensions 1x 2 m) from different producers (eg. IMP, Ljubljana , Slovenia). 

The main goal of this proposal is to reconstruct and modernize the laboratory experimental set-up to determine the performance water-cooled solar collectors and its elements. The experiments should enable to investigate new ideas, technologies and developments, as well as to serve for educational purposes. 

At the later stage of activities acquired knowledge and experience, with a parallel education of young research associates, an expertise will be developed in order to qualify the Faculty to test solar collectors for needs of industry in B&H and possibly in surrounding countries. 

3.0 EQUIPMENT NEEDED 

The equipment specification is attached in Appendixes 1 to 4, together with approximate prices.
 
1. Fabris, O., Osmanagic, M. and Kulic, E.: "The Possible Use of Solar Energy at the Medical Centre 'Dr. Safet Mujic in Mostar", Air Conditioning, Heating, Refrigerating - KGH, No 3, 1979, pp. 59-63. 
2. Kulic, E. and Sirbubalo, S.: "Computer Application to Determine the Efficiency of Solar Collectors", Proceedings, 5-th Interclima Seminar, Zagreb, Croatia, 1979. 
3. Kulic, E., Osmanagic, M. and Fabris, O. "Non-Conventional Energy Sources", Research Project for Science Foundation of Republic Bosnia and Herzegovina, Mechanical Engineering Faculty, Sarajevo, Bosnia and Herzegovina, 1982 (In Bosnian). 
4. Kulic, E., Osmanagic, M., Koric, M., Sirbubalo, S. and Grahovac, M.: "The Sandwich Solar Collector and its Performances", International Solar Symposium, Palma de Mallorca, October (2-6), 1983. 
5. Kulic, E., et al.: "The Sandwich Solar Collector", Solar Energy, Rijeka, Croatia, No 4, 1983, pp. 69-74. 
6. Kulic, E. and Nenadic, I.: "Water Tank Storage Model for Solar Energy Storage"; In Renewable Energy Sources & Refrigeration Components and Systems, Vol. IV, pp. 146-151, Proceedings, The Second World Congress on Heating, Ventilating, Refrigeration and Air Conditioning, Sarajevo, Bosnia and Herzegovina, August 28 - September 1, 1989. 
 
 
Univerzalna test stanica za solarne kolektore razvijena 1980-tih.
Universal solar collector test station developed in 1980’s
   
 
 
Appendix  

 EQUIPMENT NEEDED TO RECONSTRUCT 

SOLAR TESTING STATION 

 

Appendix 1: Missing parts 

1. Command box with connecting cable 1 Peace 

2. Circulating pump VA35/43, IMP Ljubljana 1 Peace 

3. Flow meter (Rotameter) NO 25 1 Peace 

4. Control thermometers 4 Peaces 

5. Control pressure gages 3 Peaces 

6. Flexible connecting pipes 1" 4 Peaces 

7. Automatic air vent 3/8" 2 Peaces 

8. Manual air vents 3/8" 4 Peaces 

9. Filling taps 2 Peaces 

10. Safety spring valve NP6, NO 25 2 Peaces 

11. Valve NP6, NO 25 5 Peaces 

12. Flow indicator 1 Peace 

13. Pipe insulation 2 m2 

14. Carrying wheels 4 Peaces 

15. Measuring and controlling instrumentation consisting of sets 

to measure and control: 

(i) Solar radiation 1 set 

(ii) Temperature 1 set 

(iii) Flow rate 1 set 

(iv) Pressure and pressure difference 1 set 

(v) Meteorological station 1 set 

 

 
 
 

SPECIFICATION  

 
NEEDED MEASURING INSTRUMENTS TO EQUIP 
SOLAR COLLECTOR TESTING STATION

 
Appendix 2: Solar radiation measurement 
 
1. Solar radiation intensity measurement and incoming energy on any flat surface  
1.1. Solar-metar with adjustable shading disc for diffuse radiation measurement, Type CM8, Kat.number 1305-915 

Outside spherical glass, Type CM51, Kat.br. 1305-804
 
Set 1
1.2. Electronic integrator of incoming solar radiation, Type CC2, Kat.number 1305-912, with built in "Sodco" printer, Type PN203-CC22, Kat.N0. 2663-019  

 

Set 1
1.3. Multichannel registrator with printer and writing accessories, 

Type BD8, Kat.N0. 1302-902

  

Set. 1
1.4 Additional equipment and spare parts with item N0 1.2 1.2.: 
  1. Cristal satabilisator, Type CC21, Kat.N0. 0305-514
  2. Integrator supporting stand, Type BA51, Kat.br. 0303-803
  3. Paper rols, 87,5 mm, length 55 m, Type C23, Kat.N0. 2643-926
  4. Accessories 
Kat.N0. 24, Code 2663-999  Kat.N0. 25, Code 2663-998 		  

Pcs. 1 

 

Pcs. 1 

 

Pcs.. 20 

 

Pcs. 1 

Pcs. 1
1.5 Spare parts for item 1.3: 
  1. Standard packing of 1o roles, 

    2. Type XR9, Kat.br. 2643-918 

  2. Writing accessories 
Type XR 12/1-4, Kat.br. 2643-908/911 		 

 

Pcs. 2 

 

Pcs. 1
 
 
 

Appendix 3: Measuring instruments built on testing station 
 
2. Temperature measuring and registration instruments  
2.1.  Multivelocity air hydrothermograph, Kat.No. J8368-60 

Wit battery set, C.1.5V 4/PK, Kat.No. J9376-02

  

Set. 1
2.2. Writing pens: 

Blue Kat.No. J8368-75 

Red Kat.No. J8368-80

  

pak. 1 

pak. 1
2.3. Temperature writing paper roles: 

1 day Kat.No. J8368-65 

7 days Kat.No. J8358-67 

31 days Kat.No. J8368-63

  

pak. 10 

pak. 10 

pak. 10
2.4. Wire role for thermocouples type T, Kat.No. J8530-63, 1000 Ft  

Pcs. 1
2.5. Elementi za spajanje i prikljucenje: 

T-distributor Kat.No. J8539-28 

Plug-in Kat.No. J8509-66 

Receptacle Kat.No. J8509-67

  

Pcs. 10 

Pcs. 20 

Pcs. 20
2.6. Signal transmission cables: 

Type T Kat.No. J8505-30 10 Ft 

Type T Kat.No. J8505-35 25 Ft 

Type T Kat.No. J8505-50 50 Ft

  

st. 2 

st. 2 

st. 2
2.7. Digital thermistor 

Kat.No. J8502-25 with analogue output, temperature range: 00,00 - +130,00 0C 

Accuracy: ± 0,3 0C 

Reading: 0,01 0C 

Electrical connection, 220 V, 50 Hz 

Set with accessories, Kat.No. J8502-1 i J8502-02

  

 

 

 

 

 

Set. 1
2.8.  Switching thermistor stand with 12 entries, series 700 Set. 1
2.9. Thermistor sensors series 700, with connevcting cable, of 3 meters, Kat.No. J8415-24 for water R 1/8"  

Pcs. 10
2.10.  Thermistor sensors series 700, with connevcting cable, of 3 meters, Kat.No. J8415-15 for air   

Pcs. 4
2.11. Two-channel analogue printer – registrator, Kat.N0. J8387-32 with 12 speeds switch , Accuracy: ± 0,2 % of full scale, time constant: 0,5 sec  

 

Pcs. 1
2.12. Thermocouple calibrator, Kat.No. J8501-55 Set. 1
2.13. Precisio thermometer, Kat.No. J3312-45 Pcs. 5
 
 
3. Flow rate measuring instruments  
3.1. Transportable ultrasonic flow rate meter set with all accessories, Kat.No. J5612-20, with battery charger 230 VAC 50 Hz, Kat.No. J5612-22  

 

Set. 1
3.2. Micet semi sensor , Kat.No. J5618-04 R 3/8", measuring range, 1,5 do 17 liters/min  

Pcs. 2
3.3. Digital water flow rate indicator and integrator, Kat.No. J5622-42  

Pcs. 1
3.4. Signal converter 0-5 V DC 12 V, Kat.No. J5616-34 Pcs. 1
3.5. Printer – Registrater, Kat.No. J8378-10, with dust protection cover, J8378-10  

Set. 1
3.6. Paper roll pack, width 100 mm, Kat.No. J8377-01 Pcs. 10
3.7. Compression fittings 

Kat.No. J8539-30 R1/4" 

Kat.No. J8539-34 R 3/8" 

Kat.No. J8539-33 R 3/8" 

Kat.No. J8539-32 R 3/8" 

Kat.No. J8539-31 R 5/16"

  

Pcs. 5 

Pcs. 5 

Pcs. 5 

Pcs. 5 

Pcs. 5
 
 
4. Pressure and pressure difference measuring instruments   
4.1. Digital pressure gage, Kat.No. J7350-31 Pcs. 1
4.2. Differential electronic pressure gage, Kat.No. J7352-16 Pcs. 1
4.3. Electronic signal pressure indicator, Kat.No. J7351-18 Pcs. 4
4.4.  Precise laboratory pressure gage, Kat.No. J912-00 Pcs. 1 

 
 

Instruments specified under points 2 to 4, are from: COLE PARMER INSTRUMENT Co, 7425 North Oak Park Avenue CHICAGO, ILLINOIS 60648-9930, Tel.: 312-647 7600 

 

 
Appendix 4: Meteorological station 
 
 
5. Meteorological station for velocity and wind direction measurement with all accessories for indication and averaging consisting of the following elements:  
5.1. Velocity and direction sensor: Type KVT 60, operating range 0,1 – 50 m/s  

Pcs. 1
5.2. Equipment Plug in set, Type MNS 38 Pcs. 1
5.3. Long distance indicator, Type LVK 59, range 0,0 – 49,9 m/s 

With 32 lighting diodes, electrical supply: 220 V 50 Hz SVA

  

Pcs. 1
5.4. Average velocity indicator, Type NPH 47 Pcs. 1
5.5. Average wind direction indicator, Type DPS 41 kom. 1
 

Instruments 5.4. – 5.5. are from: INSTITUT "JOZE STEFAN" Ljubljana, Jamova ulica 39, Slovenija 
 
 


Note: The following equipment may be used for other purposes, also: 
  1. Solar radiation measurement 
  2. Meteorological station
  3. Analogue printer
  4. Thermometer calibrator
  5. Movable ultrasonic flow rate meter
 
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