Napkollektor

Solar collector

Alternative Energy - Resources

Magyar Termék Nagydíj DIN certifikátum
napkollektor, napenergia Magyarul     solar collector in English    
Solarkollektor® - PÉTER IMPEX Ltd.
Hungary 6000 Kecskemét
Alkony str. 29.

SOLARKOLLEKTOR® napkollektor
Péter Impex Ltd
Solar Collector Systems
 
TÜV Rheinland Köln product certification number: 21213361_EN_P

 

The Sun as
resource of energy

Built-up of the solar collector systems

Solar collectors

Solar collector systems

Solar collector systems dimansional aspects

Designing the dimensions of warm water preparation systems

Designing the dimensions of systems heating pools

Designing the dimensions of systems heating buildings

Solar collector system diagram sketches

General dimensional aspects

In Hungary based on its meteorological conditions, only solar collectors cannot produce the all year round thermal need for the various fields of use. Therefore the solar collector systems are utilized parallel with the traditional energy carrier heat producers. When designing the dimensions of the solar collector the most important aim is to realize which size is the optimal system, and in what proportion it can meet the heat need for a given task. The quotient of the heat need covered by the collectors, and the completely needed heat need is called the solar partial proportion.

The other important aspect of the solar collectors is the system efficiency, which is the quotient of the utilized solar radiation by the collector, and the solar radiation arriving to the surface of the collectors.

Drawing the two characteristics into a chart, we can realize that their direction is just opposite. The systems with low solar partial proportion work with high efficiency, though high solar partial proportion can only be reached by low system efficiency. The optimal solar partial proportion depends on several factors. In the case of small systems producing warm water for use, or family houses the 50-70% efficiency most probably can be reached. In the case of bigger systems the lower, 20-50% value should be aimed at, the saving is still significant. In both cases the all year round efficiency of the solar collector, the trustable operation, and the refund of the investment expenses are important.

 

                                                              Heat amount of collectors

          Solar partial proportion =--------------------------------------------------------         

                                                                  Complete heat need

 

                                                                 Utilized solar radiation

          System efficiency =  -----------------------------------------------------------

                                            The utilizable heat amount by solar collector systems

 

Globális Yearly sum of overall radiation in Hungary

Globális Yearly sum of overall radiation in Hungary [kWh/m2/year]

Average daily value of the solar radiation energy arriving to horizontal surface

Average daily value of the solar radiation energy arriving to horizontal surface [kWh/m2/day]

 

More accurate dimension setting of a solar collector can be done through a computer simulation software, which is able to make all the complex calculations, of collectors dimensions depending on several factors, after given all the parameters found in natural systems.

 

Without a computational method it is difficult to design the dimensions of solar collector systems. Simplifying formula, maps or monograms exist, with which approaching pre-measurements can be made.

 

Complete power of radiation, arriving to southbound, 35° leaned surface, based on the calculation of average value of a day of months: [Wh/m2]

 

Time interval

Jan.

Feb.

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

6 – 7

-

-

23

41

72

95

80

54

31

-

-

-

7 – 8

-

52

87

123

141

164

149

137

114

68

34

-

8 – 9

67

119

205

266

290

337

302

287

241

175

84

63

9 – 10

133

249

335

427

485

529

496

472

401

309

173

105

10 – 11

199

313

462

579

694

792

707

657

560

427

220

170

11 – 12

248

352

525

663

836

999

876

764

646

524

291

207

12 – 13

245

352

514

645

812

949

858

759

623

498

285

212

13 – 14

201

302

425

545

648

768

667

616

515

414

230

168

14 – 15

127

202

300

380

457

509

454

431

370

296

152

99

15 – 16

56

108

176

240

283

321

278

266

219

157

66

46

16 – 17

-

22

76

119

144

168

148

129

102

56

33

-

17 – 18

-

-

19

41

72

96

80

52

25

-

-

-

Sum Wh/m2/d

1276

2041

3146

4069

4934

5761

5095

4621

3847

2925

1568

1070

Complete power of radiation, arriving to southbound, 35° leaned surface

 

Complete power of radiation, arriving to southbound, 45° leaned surface, based on the calculation of average value of a day of months: [Wh/m2]

 

Time interval

Jan.

Feb.

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

6 – 7

-

-

27

48

80

104

88

61

39

-

-

-

7 – 8

-

62

87

142

152

175

159

148

128

78

41

-

8 – 9

83

118

223

280

302

344

312

284

260

196

97

75

9 – 10

149

244

357

441

489

529

499

482

422

335

195

120

10 – 11

223

335

478

582

682

768

692

657

578

456

243

189

11 – 12

276

389

542

662

810

952

840

750

655

552

316

229

12 – 13

269

376

530

644

787

932

834

745

631

525

309

225

13 – 14

224

323

439

548

637

744

653

616

531

441

253

187

14 – 15

143

224

319

393

460

508

457

440

390

321

171

113

15 – 16

69

108

190

253

294

328

287

265

237

176

77

55

16 – 17

-

45

76

130

155

179

157

140

115

65

40

-

17 – 18

-

-

21

47

82

105

88

57

31

-

-

-

Sum Wh/m2/d

1436

2220

3288

4170

4930

5668

5066

4645

4017

3145

1742

1203

Complete power of radiation, arriving to southbound, 45° leaned surface

 

SOLARKOLLEKTOR® napkollektor
Péter Impex Ltd
Solar Collector Systems
 
TÜV Rheinland Köln product certification number: 21213361_EN_P

 

The Sun as
resource of energy

Built-up of the solar collector systems

Solar collectors

Solar collector systems

Solar collector systems dimansional aspects

Designing the dimensions of warm water preparation systems

Designing the dimensions of systems heating pools

Designing the dimensions of systems heating buildings

Solar collector system diagram sketches

General dimensional aspects

In Hungary based on its meteorological conditions, only solar collectors cannot produce the all year round thermal need for the various fields of use. Therefore the solar collector systems are utilized parallel with the traditional energy carrier heat producers. When designing the dimensions of the solar collector the most important aim is to realize which size is the optimal system, and in what proportion it can meet the heat need for a given task. The quotient of the heat need covered by the collectors, and the completely needed heat need is called the solar partial proportion.

The other important aspect of the solar collectors is the system efficiency, which is the quotient of the utilized solar radiation by the collector, and the solar radiation arriving to the surface of the collectors.

Drawing the two characteristics into a chart, we can realize that their direction is just opposite. The systems with low solar partial proportion work with high efficiency, though high solar partial proportion can only be reached by low system efficiency. The optimal solar partial proportion depends on several factors. In the case of small systems producing warm water for use, or family houses the 50-70% efficiency most probably can be reached. In the case of bigger systems the lower, 20-50% value should be aimed at, the saving is still significant. In both cases the all year round efficiency of the solar collector, the trustable operation, and the refund of the investment expenses are important.

 

                                                              Heat amount of collectors

          Solar partial proportion =--------------------------------------------------------         

                                                                  Complete heat need

 

                                                                 Utilized solar radiation

          System efficiency =  -----------------------------------------------------------

                                            The utilizable heat amount by solar collector systems

 

Globális Yearly sum of overall radiation in Hungary

Globális Yearly sum of overall radiation in Hungary [kWh/m2/year]

Average daily value of the solar radiation energy arriving to horizontal surface

Average daily value of the solar radiation energy arriving to horizontal surface [kWh/m2/day]

 

More accurate dimension setting of a solar collector can be done through a computer simulation software, which is able to make all the complex calculations, of collectors dimensions depending on several factors, after given all the parameters found in natural systems.

 

Without a computational method it is difficult to design the dimensions of solar collector systems. Simplifying formula, maps or monograms exist, with which approaching pre-measurements can be made.

 

Complete power of radiation, arriving to southbound, 35° leaned surface, based on the calculation of average value of a day of months: [Wh/m2]

 

Time interval

Jan.

Feb.

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

6 – 7

-

-

23

41

72

95

80

54

31

-

-

-

7 – 8

-

52

87

123

141

164

149

137

114

68

34

-

8 – 9

67

119

205

266

290

337

302

287

241

175

84

63

9 – 10

133

249

335

427

485

529

496

472

401

309

173

105

10 – 11

199

313

462

579

694

792

707

657

560

427

220

170

11 – 12

248

352

525

663

836

999

876

764

646

524

291

207

12 – 13

245

352

514

645

812

949

858

759

623

498

285

212

13 – 14

201

302

425

545

648

768

667

616

515

414

230

168

14 – 15

127

202

300

380

457

509

454

431

370

296

152

99

15 – 16

56

108

176

240

283

321

278

266

219

157

66

46

16 – 17

-

22

76

119

144

168

148

129

102

56

33

-

17 – 18

-

-

19

41

72

96

80

52

25

-

-

-

Sum Wh/m2/d

1276

2041

3146

4069

4934

5761

5095

4621

3847

2925

1568

1070

Complete power of radiation, arriving to southbound, 35° leaned surface

 

Complete power of radiation, arriving to southbound, 45° leaned surface, based on the calculation of average value of a day of months: [Wh/m2]

 

Time interval

Jan.

Feb.

Mar.

Apr.

May.

Jun.

Jul.

Aug.

Sept.

Oct.

Nov.

Dec.

6 – 7

-

-

27

48

80

104

88

61

39

-

-

-

7 – 8

-

62

87

142

152

175

159

148

128

78

41

-

8 – 9

83

118

223

280

302

344

312

284

260

196

97

75

9 – 10

149

244

357

441

489

529

499

482

422

335

195

120

10 – 11

223

335

478

582

682

768

692

657

578

456

243

189

11 – 12

276

389

542

662

810

952

840

750

655

552

316

229

12 – 13

269

376

530

644

787

932

834

745

631

525

309

225

13 – 14

224

323

439

548

637

744

653

616

531

441

253

187

14 – 15

143

224

319

393

460

508

457

440

390

321

171

113

15 – 16

69

108

190

253

294

328

287

265

237

176

77

55

16 – 17

-

45

76

130

155

179

157

140

115

65

40

-

17 – 18

-

-

21

47

82

105

88

57

31

-

-

-

Sum Wh/m2/d

1436

2220

3288

4170

4930

5668

5066

4645

4017

3145

1742

1203

Complete power of radiation, arriving to southbound, 45° leaned surface