2

The nordluft EcoSolar Th e solar-supported Warm Air- and Ventilation System

15% with solar-thermal, solar air

30% with gaseous biomass

50% with fl uid + solid biomass, as well as geo-thermal energy and environmental heat

Share of Renewable Energy in the latest Renewable Energy/ Heat-ing - Laws & Regulations (in German – Erneuerbare-Energien-

Wärmegesetz (EEWärmeG)):

Direct heated unit

EcoSolar - air-cooled collector

Direct heated Warm Air - and Ventilation System

Ecosolar- Air-cooled Collector JS

Control unit/ Control cabinet

Other accessories like mixing chamber, filter, etc.

With the EcoSolar, you fulfi ll the requirements of 100% of the latest German Government Regulations for Renewable Energy/ Heating - Laws & Regulations (in German - Erneuerbare-Energien-Wärmegesetz (EEWärmeG)) regarding the utilization of environ-mental heat. Thereby, the system will be co upled with several module building blocks:

3

Direct Heated Unit:

The operation of the direct heated unit can be carried out due to the highly sophisticated NL-A NT

technology by means of gas burner within condensing operations or within intermittent operations (oil

burner). Combustion chamber and shell-and-tube heat exchanger will be delivered, if required, in com-

plete stainless steel version, inclusive of condensate drainage system. Through this process, efficiencies

of up to 102% will be achieved.

EcoSolar - Air Collector JS:

The Solar Air Collector consists of one, i.e. two modules, with 20 meters of collector area and it can either be

permanently connected to the Warm Air Heater NL-A-...NT through a combination kit, but the unit can also

be installed separately. Hereby, the air functions as a heat carrier. Fresh air, or rather air re-circulation, will be

drawn in and filtered by a filtering module, will get heated in the air collector through the solar energy influx,

and is then delivered through the roof-/ wall duct into the building. This can either be carried out directly or

by means of a Warm Air Heater and Air Distribution System.

Control Cabinet:

The nordluft control system unit, with its individual solutions,makes an energy supply on demand possible

and therefore presents an optimal solution for energy utilization. Highly comfortable equipment handling be-

cause of state-of-the-art ventilation control processors (VCP) together with a user-friendly menu structure and

easiest required set point value adjustments, night-time cooling, energy selection, etc.make it a unique system.

Whether it is a Manufacturing Facility, a Public Swimmingpool or a Sportshall, Shops and Showrooms, Warehousing,

or a Drying Plant - everywhere where direct heated warm air and ventilations systems are applicable, our Eco-Sys-

tems guarantee law conforming, as well as energy-saving and economical systems for all kinds of facilities.

EcoSolarThe sun does not send us an invoice -Energy savings at no cost through Solar Energy

EcoSolar-Air Collector JS

effluent gas stack

supply air duct system Direct heated warm air heater NL-A NT

air warming

air

inta

ke

4

Function Scheme

EcoSolar-Air Collector JS

1

234

5

6

8

7

EcoSolarCombination of EcoSolar Air Collector with Warm Air System NL-A NT Efficient heating (permanent heat supply at base load through the air collector, and during peak loads, through the direct heated warm air system, as required.)

Law conforming Facility concepts with high potential for energy-savingApplicable solutions with low-cost overall investments

Integrated additional functions (permanent airing process, filtering, sound damping etc.)

Requirement optimated energy supply and safety in operation(for example: free night-time cooling by means of fresh air)

Highly comfortable working environment and increased productivity by means of air ventilation function (minimal temperature swings because of permanent air ventilation and permanent air circulation)

5

Efficient and economical because of proven technology

Reduction in energy consumption because of optimal air ducting system

Applicable for gas and oil burner/ s

Efficiency index of up to 102°C within operations where condensate formation takes place

Almost maintenance-free operations

Combustion chamber and shell-and-tube heat exchanger completely manufactured from stainless steel (for operations where condensate formation takes place)

Variable effluent gas outlet positioning

6. Direct heated warm air heater NL-A NT (supply of heat at peak load, heating medium: gas/oil)

5. Module Casing in frame construction

Self-supporting frame profile

Double-walled cladding panels, galvanized steel sheet, lacquered

Inside heat and sound insulation

3. Filter chamber (Filtering)

Filter quality: G-4, optional fine filter

Filter installation: European-standard, mounted frame or slide-in rails

Easiest operation and supervision

4. Compressor sound damper

Project-specified dimensioning of the insertion attenuation

Optimal sound damping in frequence of 250 Hz

Trade mark fabricated expansion link with abrasion-resistant surface covering

8. Control cabinet/ Regulation

Individual regulation and automatic control cabinets enable a target-focused energy supply for an optimal energy use.

Highly comfortable equipment handling of technology due to state-of-the-art ventilation regulation processors (VRP)

User-friendly menu-driven operation

Easiest set value adjustment

Night-time cooling, energy selection (with fresh air/air re-circulation connection)

1. Mixing chamber for air re-circulation/ fresh air

Efficient and energy-saving air re-circulation/ fresh air conditioning

Optimal energy selection / night-time cooling

Louvre shutters made of aerodynamic hollow profile lamella

2. Condensate basin

Integrated condensate basin for maximum safety

Possible humidity of fresh air will be lead off

Completely manufactured from stainless steel with drainage

Distinguishing Construction Features of the direct heated Warm Air System in generalExcellent quality and special construction features

Durability and long life-span because of corrosion protection for all component parts

High temperature insulation and sound damping because of double-walled panels

Casing in separable frame construction

Casing, manufactured completely from galvanized steel sheet, lacquered

Easy accessability and easy to maintain structural design

All-round insulation for optimal energy saving

EcoSolar - in Detail

Casing manufactured from galvanized steel plate, absorber manufactured from aluminium

Covering: 4 mm - tempered safety glass (TSG)

Short start-up time

High efficiency, even with short sunlight exposure

Fast warming of air as heat carrier

No danger of freezing of the carrier medium air

Short amortization period

Noticeable reduction in heating costs and of CO2-emissions

7. EcoSolar-Air collector JS

Solar Effi ciency with the nordluft Solar-Air Collector JS

EcoSolar - Air Collector JS

Rules of thumb for estimated layout

per 25-50 m2 building volume: 1 m2 Collector area

per 1 kW heating output: 1 m2 Collector area (0,67kW)

Layout of Collector area

upon approximately 70% of heating output

Increase in air temperature: · up until 40 K at special volumetric fl ow rate of 50 m3/h

per m2 Collector area (ventilation/ heating)

· up until 80 K at special volumetric fl ow rate of 20 m3/h

per m2 Collector area (process heat)

· depending on the actual solar energy infl ux

Primary energy saving: up until 700 kWh / (m2a)

(per m2 Collector area) up until 70 litres of fuel oil (m2/a)

Usage of supporting structure: approximately 35 kg/m2 (inclusive of installation system)

6

Technical Data (for 20 m2 JS-Module):

Measurements(Length x Width x Height) per unit: 20.000 x 1.003 x 175 mm

Material: Galvanized steel sheet

(Aluminium optional)

Weight: approximately 640 kg

Absorber: Aluminium (thickness = 0,6 mm)

Covering: Tempered safety glass (TSG) -

(4 mm)

Insulation: Insulating boards, mineral wool

(20 mm or 60 mm, respectively)

Gross-Collector area: 20 m2

Short start-up time

High effi ciency already within short radiation period

Fast warming of air as heat carrier

No danger of freezing of the carrier medium air

Short amortization period

Noticeable reduction of heating costs and CO2-emissions

Feasibility which convinces every investor

Installation: connected or separatly from the warm air system

Preferable on the pitched roof, i.e. fl at roof, but also possible to install onto the building fassade.

Unit package: Air collector, fi lter unit, installation system, control and sensor technology, combination kit for warm air heater.

Flexibility in every form and substance - however, the align-ment to the direction of the sun has to be adhered to.

Easy options for installation

tempered safety glass (TSG) covering

connecting frame

rear panel steel sheet

aluminium

insulation

Production facility (Length x Width x Height): 50 x 25 x 6,5 high, U-figure= 0,35

Inside Temperature: +18°C

Outside Temperature: -12°C,

Total heat requirement (QT + QL): 100 kW, 2-shift production with night-time lowering

Solar coverage rate (according to EEWaermeG): 15% (=53,70 m2 Solar-Air collector-area)

Production Air collector: 100% fresh air

Yearly data: Total energy consumption: approximately 125,000 kW/ per hour

Share of solar energy from this: approximately 19,000 kW/ per hour

Coverage of solar energy: 15,2%

Reduction in energy costs (gas): approximately Euro 850/- p.a.

Amortization of increased costs of Facility: approximately 9,6 years

77

EcoSolar - Function Principle

connecting frame

1.

2.

3.

4.

As soon as the sun is shining, the EcoSolar-air coll-

ector supplies the building with heat. Outside air,

i.e air re-circulation gets suctioned in, whereupon

it is then filtered, and gets heated by means of the

ribbed absorber inside the collector.

With the warm air system NL-A NT, this heated

air will be supplied into the building.

Upon requirement, additional fresh air or air re-

circulation can be added by means of the mixing

chamber.

5.

Has the requested temperature of the hall/ buil-

ding/ facility been achieved, the hot air of the

collector will be added as a „heat buffer“ below

the roof. During the next supply of hot air, this

heat buffer can be distributed over the whole

building, including the office area.

Is the heat supply of the collector insufficient, then the gas- or oil burner gets switched on and supplies, by means of burning

chamber/ heat exchanger, the required heat at peak load.

supply air

fresh air

Solar - Air Collector JS

Direct Heated Warm Air System

ventilator

heating register

re-circulated air

fresh air

1

2

3

4

5

Reference Calculation

EcoSolar - Air Collector JS

Technical Data

Daten für die Berechnungen von Lufteintritts- und –austrittstemperatur sind fallbezogen durchzuführen.

8

Gross- Collector area: 20 m2 (8 single modules at 2,5 m2)

Thermal nominal output: 13,4 kW at peak load

Air volumetric fl ow rate: 660 - 2.000 m3 / per hour possible

The total module @ 20 m2 consists of the starter module (fi lter-collector) (FC), several middle modules (midd-le collector) (MC) and an end module (end collector) (EC).

Measurements -Total collector area: 20.000 x 1.003 x 175 mm

Air supply line: DN-250/315/355 (according to volumetric fl ow rate)

Weight - Total collector area: approximately 640 kg

with integrated fi ler G-4

Gross collector area

Length

Width

Height

Thermal output at peak load

Weight

Thermal output at peak load

Middle collector (MC) End collector (EC) with pipe connection

DN - 250/315/355

2,5

2500

1003

187

1.675

80

2,5

2500

1003

187

1.675

80

2,5

2500

1003

187

1.675

80

m2

mm

mm

mm

W

kg

Filter collector (FC)

Air re-circulation Collectorin linear construction, without fi lter

Fresh air Collectorin linear construction, with fi lter

Fresh air Collectorin U-shape, with fi lter

Air re-circulation Collectorin U-shape, without fi lter

Typical Placement Variations

9

Case Studies

Flat roof installation2 air collector modules JS on the roof

Warm air heater NL-A NT under the roof

Mixing chamber for air re-circulation/ fresh air/ and solar air

Air distribution through duct system

Pitched roof installation1 air collector module JS on the roof

Warm air heater NL-A NT under the roof

Mixing chamber for air re-circulation/ fresh air/ and solar air

Air distribution through channel/ duct system

Heating outputkW

NL-A 25 NT

NL-A 40 NT

NL-A 55 NT

NL-A 70 NT

NL-A 90 NT

NL-A 105 NT

NL-A 130 NT

NL-A 170 NT

NL-A 200 NT

NL-A 250 NT

NL-A 290 NT

NL-A 340 NT

NL-A 430 NT

NL-A 550 NT

NL-A 25 NT

NL-A 55 NT

NL-A 90 NT

NL-A 130 NT

NL-A 200 NT

NL-A 290 NT

NL-A 430 NT

20

35

50

65

85

100

120

150

180

230

260

290

400

500

Type Temperature increaseK

30

35

35

35

35

35

35

35

35

35

35

36

35

35

Warm air outputm3 / per hour

2.200

3.350

4.750

6.150

8.050

9.500

11.300

14.250

17.100

21.800

24.600

26.950

37.500

47.550

Effi ciency index %

93,8

93,2

94,0

93,6

94,2

93,6

94,5

93,4

94,0

93,3

94,5

93,0

94,0

94,2

Technical Data for the Direct heated Warm Air System NL-A NT

Flat roofPitched roof

10

Mains supply independent air collector packages from 1,3 m2 collector area. Independent operation due to integrated photo-voltaic module.

EcoSolar - Air Collector PV

Integrated fi lter

Integrated ventilator (up to PV 2.0)

Temperature difference control(starting from PV 4.0)

Thermostat control (up to PV 2.0)

Solar control lever with space sensor (starting from PV 4.0)

The alternative to collector model PV for medium-sized capacities, starting from 4 m2 collector area. Mains current operated design (voltage: 230V). Identical with collector model PV, but without integrated photovoltaic module.

EcoSolar - Air Collector TS

Integrated fi lter

Integrated ventilator (up to PV 2.0)

Temperature difference control (starting from PV 4.0)

Thermostat control (up to PV 2.0)

Solar control lever with space sensor (starting from PV 4.0)

Technical Data PV + TS PV PV PV PV PV PV PV PV PV

Gross collector area

Length x Width

Thermal output at peak load

Suitable for area to be heated

Weight

Maximum air output Type PV (at 150 Pa)

Maximum air output Type TS (at 150 Pa)

Weight

1,3

1,45 x 0,9

700

10 - 20

29

80

--Maximum air output Type TS (at 150 Pa)

TS TS TS TS TS TS TS2,0

2,0 x 1,0

1.200

15-30

47

120

-

4,0

4,0 x 1,0

2.400

40-50

90

200

200

6,0

6,0 x 1,0

3.600

60-80

135

200

200

8,0

8,0 x 1,0

4.800

80-100

180

350

350

10,0

10,0 x 1,0

6.000

100-120

225

350

350

4,55

2,25 x 2,1

2.700

40-60

110

200

200

8,55

4,25 x 2,1

5.100

80-100

200

350

350

12,55

6,25 x 2,1

7.500

120-150

290

350

380

m2

m

W

m2

kg

m3/h

m3/h

PV 1.3 und 2.0: Max. Luftleistung freiblasend

tempered safety glass (TSG) covering

Connecting frame

Rear panel

Aluminium

Insulation

Air Collectors for small spaces and medium-sized Halls/ Facilities

Solar safety glass

Solar cells

Air suction opening

Outlet connection

Insulation material

Absorber (ribbed)

11

Size SelectionCollektor PV und TS

Collector - outputCollektor PV und TS

Example:80 m2 base area = Collector PV 6.0 oder TS 6.0

Rule of thumb: 10 m2 base area = 1 m2 air collector area (in the case of old

buildings and buildings/ facilities with average insulation and modest room

height).

Typical Placement Variations

Air re-circulation collector PVwith filter and ventilator

Fresh air collector TSwith filter and ventilator

Fresh air collector TSin U-shape, with filter,

ventilator - external inside duct system

Fresh air collector TSin U-shape, with filter,

ventilator - external inside duct system

To b

e h

eate

d a

rea

[m2]

Co

llect

or

- ou

tpu

t [W

]

Collector size in [m2]

Radiation intensity [W/m2 collector area]

effect on heatin

g + positive effect o

n ventilatio

n

PV 10.0 and TS 6.0

PV 6.0 and TS 6.0

PV 2.0 and TS 2.0

positive effect on heating + excellent effect on ventilation

nordluft Wärme- und Lüftungstechnik GmbH & Co KG

Robert - Bosch - Str. 5 · 49393 Lohne,/Germany · Phone +49 (0)4442- 889 0 · Fax +49 (0)4442-889 59 · info@nordluft.com · www.nordluft.com

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