Solar systems 2
Regulus flat solar collectors
Examples of Regulus flat collectors implementation
Flat plate solar collectors have a large glass surface and a large absorber. In full sunshine, their power output is high. They utilize most of the solar energy that reaches their surface.
The materials used guarantee a long service life and stable parameters of the collectors. All models are equipped with an anodized aluminum frame and a copper absorber with a long-life absorption layer (carried out by vacuum deposition).
The absorption layer of these collectors has a highly selective surface. Its ability to absorb solar radiation is high but its heat dissipation (heat loss by dissipation) is very low.
Solar tempered glass in all models is highly shatterresistant and permeable for solar radiation. KPW1 model uses solar antireflection glass that represents the best in solar glasses. A special coating on both sides of the glass eliminates reflections of solar radiation and the absorber receives more solar radiation..
Thermal insulation limits the collector’s thermal loss and increases its efficiency. The thickness of the mineral wool insulation is between 2 and 6 cm depending on the model.
Regulus solar collectors are certified by an independent Test Lab according to the latest European standard EN 12975-2. This standard involves among others also measurement of the output and efficiency, of mechanical resistance incl. hail resistance and long-term weather resistance.
|
|
The right collector should be selected depending on your application - for heating DHW, heating a pool, or as additional heating to your low-energy house. Collectors of better parameters will enable you utilizing solar energy even under unfavorable conditions, in the spring and autumn. |
|
|
KPG1 solar collector
KPG1 is a new, advanced collector designed for high efficiency and performance while maintaining reasonable price. it is manufactured on a robotized production line with minimum of human labor. The new bonding technology without frame brings an elegant design and a large surface area for solar energy reception.
Collector KPG1
- Vertical as well as horizontal installation possible
- Favorable price/performance ratio thanks to robotized production
- Harp absorber made of copper pipes with laser-welded aluminum sheet, with highly selective Eta plus surface
- Large aperture and collector area compared to the total collector area
- Low hydraulic resistance = low circulation pump power consumption
- Enables parallel connection of collectors into large arrays
- Solar Keymark certified collector
- Elegant frameless design
| Model | KPG1-ALC |
| Dimensions W × L × H | 1170 × 2150 × 83 mm |
| Collector surface | 2,52 m2 |
| Connection dimensions | 4× pipe Cu 22 |
| Absorber | Copper-aluminum/Harp type |
| Absorber surface | Blue Tec Eta Plus |
| Insulation thickness | 4 cm |
| Max. working pressure | 6 bar |
| Fluid volume | 1,7 l |
| Weight | 38 kg |
| Glass | clear solar |
| Code | 10336 |
The absorber of KPG1 is manufactured using the latest technology of aluminum sheet laser welding with copper pipe. This brings maximum heat transfer thanks to a double joining line and a larger heat transfer surface.
EtaPlus, the highly selective blue absorber surface, is made of a ceramics-metal compound (CERMET) and represents one of the best selective materials actually produced. The surface features high solar absorptance and low heat loss by heat emission. Surface passivation together with the ceramic layer works as an efficient diffusion barrier, protecting the surface against corrosion.
This all guarantees a long-term stability of solar parameters - absorptance α= 95 % (± 2 %) and emissivity ε= 5% (± 2 %), and a long service life of the absorber.
Eta plus coating is manufactured by the renowned German company BlueTec who considers environment protection very important. No harmful exhaust gas or chemicals are generated during application of Eta plus on an absorber. The process is completely free of emissions. Only electrical energy is required: approx. 1 kWh per m² of surface, and it is just this 1 kWh that will be produced by each 1 m2 of collector in its first hour of operation. Over its lifetime the Eta plus coating can produce about 20,000 kWh/m2 of clean solar energy without any CO2 emissions.
Flat solar collectors KPA1 ALP, KPS11 ALP and KPC1 BP
|
  
collector KPC collector KPS collector KPA 1 ALP
KPS11 and KPC collector cross section
|
Hydraulic connection of KPS11 and KPC collectors |
| Model | KPA1 -ALP | KPC1 - BP | KPS11 - ALP |
| Dimensions w x l x h | 1000 x 2000 x 80 mm | 1000 x 2000 x 96 mm | 1247 x 2000 x 95 mm |
| Collector surface | 2 m2 | 2 m2 | 2,49 m2 |
| Connecting sizes | 4 x pipe Cu 22 | 4 x pipe Cu 22 | 4 x pipe Cu 22 |
| Absorber | copper-aluminum/ parallel type | nickel-plated copper / parallel type | copper / parallel type |
| Absorber surface | Tinox | black chrome | Eta plus |
| Insulation thickness | 3,5 cm | 4 cm | 5 cm |
| Working pressure | 6 bar | 6 bar | 6 bar |
| Liquid volume | 1,6 l | 2,0 l | 2,2 l |
| Weight | 34 kg | 37 kg | 45 kg |
| Glass | 4 mm | 4 mm | 4 mm |
| solar prismatic | solar prismatic | solar prismatic | |
| Code | 9651 | 7610 | 8183 |
|
|
[ up ] |
Flat solar collectors KPS10 ALP
KPS collector cross section
|
Hydraulic connection of KPS collectors
|
| Model | KPS10 - ALP |
|---|---|
| Dimensions w x l x h | 1144 x 2044 x 80 mm |
| Collector surface | 2,34 m2 |
| Connection dimensions | 2 x pipe Cu 12 |
| Absorber | copper / serpentine type |
| Absorber surface | Sunselect |
| Insulation thickness | 4 cm |
| Max. working pressure | 10 bar |
| Fluid volume | 1,6 l |
| Weight | 44 kg |
| Glass | 4 mm |
| solar prismatic | |
| Code | 8258 |
Flat solar collectors KPW2 - C32 HTF
|
Eta plus coating is made by the renowned German company BlueTec who puts emphasis on the environment protection. No harmful gases or other chemicals rise from applying the Eta coating on a copper sheet, the whole process runs without any harmful emissions. For the production of coating only about 1 kWh of energy is needed for 1 m2, and it is just 1 kWh that will be produced by each square meter of this collector during the first hour of its operation. During its lifetime, Eta plus is able to produce some 20 000 kW/m2 of clean energy gained directly from solar radiation without any CO2 emissions. |
Flat solar collectors KPW1 - C20 AR
Antireflection solar glass represents the best in solar glasses of today. The picture shows the incident solar radiation and its restricted reflection outwards the collector thanks to the double sided antireflection layers. Solar permeability is 96%. |
|
||
| Model | KPW1 - C20AR | KPW2 - C23HTF |
|---|---|---|
| Dimensions W x L x H | 1215 x 2140 x 110 mm | 1160 x 1930 x 90 mm |
| Collector surface | 2,61 m2 | 2,24 m2 |
| Connection dimensions | 2 x outer thread G 1/2“ | 2 x outer thread G 1/2“ |
| Absorber | copper / double parallel | copper / double parallel |
| Absorber surface | Eta plus | Eta plus |
| Insulation thickness | 6 cm | 4 cm |
| Max. working pressure | 10 bar | 10 bar |
| Fluid volume | 1,3 l | 1,1 l |
| Weight | 48 kg | 39 kg |
| Glass | 4 mm | 4 mm |
| solar antireflection | solar prismatic | |
| Code | 8081 | 8082 |
|
KPW collector cross section |
Hydraulic connection of KPW collectors |
Regulus evacuated tube collectors
|
KTU evacuated-tube solar collectors use vacuum as a thermal insulation, formed between two glass tubes. A highly selective absorption coating is applied to the inner tube. The heat gained is conducted by special aluminum lamellas into copper tubes where a special fluid circulates. Thanks to this, thermal loss of tubular collectors is very low and the collectors may gain heat even in a very weak sunshine (cloudy weather - radiation diffusion) or under extreme weather conditions (a low air temperature and a high temperature of the liquid to be heated).
|
 |
|
They excel namely at:
|
For these reasons, tube collectors are suitable for:
|
|
Why do the KTU tube collectors show so excellent parameters?
Vacuum insulation in glass tubes. A tube consists of 2 coaxial glass tubes with vacuum between them. The ends of the tubes are sealed so the vacuum stability is guaranteed for a long time. So the collector absorber is placed in vacuum which is ideal insulation and minimizes heat losses like e.g. a vacuum flask. Thanks to that, even the minimum heat gain during bad weather doesn’t get lost and warms up the fluid in the collector.
|
The absorption surface that changes the incident radiation to heat has a tubular shape. The collector exposes the same surface area to the incident sunshine in the morning, at midday and in the evening. The tubular absorption area makes it possible to gain heat also from the diffuse solar radiation. The absorption surface area for diffuse radiation is more than 3 times bigger than that for direct sunshine. Thanks to this, KTU collectors have heat gains even at bad weather. Solar fluid passes through a U-shaped copper tube down to the tube and when warmed up, it returns up to the header pipe. An aluminum lamella gathers heat from the entire inner surface of the evacuated tube and transfers it to the solar fluid inside the copper tube. The lamella fits precisely to the glass tube and embraces tightly the copper tube with solar fluid. Thanks to this and to the very short distance between the absorber and the solar fluid the heat transfer is highly effective.. Thermal insulation of the header pipe is formed by a 3cm layer of mineral wool with transverse-oriented fibres and an aluminum foil for minimizing heat losses of the header We develop and manufacture Regulus solar collectors in the Czech Republic. Their excellent parameters and mechanical resistance are verified by a Certificate from an authorized body according to the latest European standard EN 12975-2. This standard involves among others also measurement of the output and efficiency, of mechanical resistance incl. hail resistance and long-term weather resistance |
 |
|
The collector header consists of two copper pipes. The lower pipe brings liquid into the collector, the upper pipe takes the warmedup A hydraulic resistance of a collector array is low due to the twopipe connection with a big diameter of the header pipes. Such a connection scheme guarantees a high efficiency of the collectors and a low consumption of the solar pump |
Connection of a collector array
|
Hydraulic schematic diagram |
There are 2 lines of Regulus evacuated tube collectors with U-tubes: KTU and KTU R
|
KTU R collector is fitted with a large shaped reflector that concentrates solar radiation from a large area to the tube absorption surface. KTU R collectors offer a higher peak power output.
KTU collector has no reflector sheet but has more tubes that utilize the full absorption area in a wide solar angle of 110°. KTU collectors offer a more even power output throughout the year |
 |
 |
 |
 |
 |
| KTU R | KTU R6 | KTU | KTU 15 |
|
|
|
||
| Dimensions W x L x H | 1000 x 1970 x 141 | 1430 x 1970 x 141 | 1000 x 1970 x 140 mm | 1430 x 1970 x 140 mm |
|---|---|---|---|---|
| Gross collector surface | 1.81 m2 | 2..66 m2 | 1.81 m2 | 2.66 m2 |
| Aperture surface | 1.43 m2 | 2.15 m2 | 0.93 m2 | 1.41 m2 |
| Connection dimensions | 4 x pipe Cu 22 | 4 x pipe Cu 22 | 4 x Cu 22 | 4 x Cu 22 |
| Max. working pressure | 6 bar | 6 bar | 6 bar | 6 bar |
| Fluid volume | 0.92 l | 1.37 l | 1.7 l | 2.4 l |
| Weight: | 32 kg | 44 kg | 41 kg | 60 kg |
| Model: | KTU R6 | KTU R9 | KTU 10 | KTU 15 |
| Code: | 7343 | 7342 | 7126 | 7127 |
KTK14 solar tube collector
Solar Tube Collector
Solar collector with 14 evacuated tubes with a flat plate copper absorber with a highly selective Tinox coating.
|
KTK14 Solar Tube Collector combines the technology of tube and flat plate collectors. Inside a sealed evacuated tube there is a flat plate copper absorber with a highly selective Tinox coating. The absorber is ultrasound-welded to a copper tube through which solar fluid flows. Vacuum is created directly in one glass tube that is closed at its upper end by a metal diaphragm sealed into the tube‘s glass.
The advantages of this solution are:
|
 |
 |
Collector hydraulic diagram |
|
Solar collector holders
The fixing system is very strong and stable. It is easily mounted and unified for all collector types. It is based on horizontally fixed special aluminum H-shaped rails enabling special screws and nuts to be inserted into the rails and shifted along as needed. Special anchors made of aluminum or stainless steel are placed into an inclined roof (we have a wide range of roof anchors depending on the kind of roofing and a method of fixing). For a flat roof, triangle-shaped holders are used. Two H-shaped rails are mounted on holders or struts horizontally in parallel. Collectors are then positioned onto the rails and fixed by means of 4 screws and special washers.
|
List of fixing sets and holders:
|
|
Installing sets for fixing and connecting KPC1 collectors
| A connecting set for KPC collector field | 7710 |
| A fixing set for 1 KPC1 collector **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 7720 |
| A fixing and interconnecting set for 2 KPC1 collectors **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 7712 |
| A fixing and interconnecting set for 3 KPC1 collectors **(for 6 anchors or 3 supports + 1 X-shaped windbrace) | 7714 |
| A fixing and interconnecting set for 4 KPC1 collectors **(for 8 anchors or 4 supports + 1 X-shaped windbrace) | 7716 |
| A fixing and interconnecting set for 5 KPC1 collectors **(for 10 anchors or 5 supports + 1 X-shaped windbrace) | 7718 |
Installing sets for fixing and connecting KPS10 collectors
| A connecting set for KPS10 collector field (1/2" outer straight inlet and 1/2"outer straight outlet) | 7229 |
| A fixing set for 1 KPS10 collector **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8284 |
| A fixing and interconnecting set for 2 KPS10 collectors **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8285 |
| A fixing and interconnecting set for 3 KPS10 collectors **(for 6 anchors or 3 supports + 1 X-shaped windbrace) | 8286 |
| A fixing and interconnecting set for 4 KPS10 collectors **(for 8 anchors or 4 supports + 1 X-shaped windbrace) | 8287 |
Installing sets for fixing and connecting KPS11 collectors
| A connecting set for KPS11 collector field (1/2" outer straight inlet and 1/2"outer straight outlet) | 7710 |
| A fixing set for 1 KPS11 collector **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8280 |
| A fixing and interconnecting set for 2 KPS11 collectors **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8281 |
| A fixing and interconnecting set for 3 KPS11 collectors **(for 6 anchors or 3 supports + 1 X-shaped windbrace) | 8282 |
| A fixing and interconnecting set for 4 KPS11 collectors **(for 8 anchors or 4 supports + 1 X-shaped windbrace) | 8283 |
Installing sets for fixing and connecting KPW2 collectors
| A connecting set for KPW collector field (3/4" outer straight inlet and 3/4"outer straight outlet) | 8116 |
| A fixing set for 1 KPW2 collector (for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8087 |
| A fixing and interconnecting set for 2 KPW2 collectors (for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8088 |
| A fixing and interconnecting set for 3 KPW2 collectors (for 6 anchors or 3 supports + 1 X-shaped windbrace) | 8089 |
| A fixing and interconnecting set for 4 KPW2 collectors (for 8 anchors or 4 supports + 1 X-shaped windbrace) | 8090 |
Installing sets for fixing and connecting KPW1 collectors
| A connecting set for KPW collector field (3/4" outer straight inlet and 3/4"outer straight outlet) | 8116 |
| A fixing set for 1 KPW1 collector **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8083 |
| A fixing and interconnecting set for 2 KPW1 collectors **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8084 |
| A fixing and interconnecting set for 3 KPW1 collectors **(for 6 anchors or 3 supports + 1 X-shaped windbrace) | 8085 |
| A fixing and interconnecting set for 4 KPW1 collectors **(for 8 anchors or 4 supports + 1 X-shaped windbrace) | 8086 |
Installing sets for fixing and connecting KTU 15 and KTU R9 collectors
| A connecting set for KTU or KTK collector field | 7703 |
| A fixing set for 1 KTU 15 (R9) collector **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 7414 |
| A fixing and interconnecting set for 2 KTU 15 (R9) collectors **(for 6 anchors or 3 supports + 1 X-shaped windbrace) | 7245 |
| A fixing and interconnecting set for 3 KTU 15 (R9) collectors **(for 8 anchors or 4 supports + 1 X-shaped windbrace) | 7246 |
| A fixing and interconnecting set for 4 KTU 15 (R9) collectors **(for 10 anchors or 5 supports + 1 X-shaped windbrace) | 7247 |
Installing sets for fixing and connecting KTU10 and KTU R6 collectors
| A connecting set for KTU or KTK collector field | 7703 |
| A fixing set for 1 KTU 10 (R6) collector **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 7415 |
| A fixing and interconnecting set for 2 KTU 10 (R6) collectors **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 7241 |
| A fixing and interconnecting set for 3 KTU 10 (R6) collectors **(for 6 anchors or 3 supports + 1 X-shaped windbrace) | 7242 |
| A fixing and interconnecting set for 4 KTU 10 (R6) collectors **(for 8 anchors or 4 supports + 1 X-shaped windbrace) | 7243 |
| A fixing and interconnecting set for 5 KTU 10 (R6) collectors **(for 10 anchors or 5 supports + 1 X-shaped windbrace) | 7244 |
Installing sets for fixing and connecting KTK collectors
| A connecting set for KTU or KTK collector field | 7703 |
| A fixing set for 1 KTK collector **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8111 |
| A fixing and interconnecting set for 2 KTK collectors **(for 4 anchors or 2 supports + 1 X-shaped windbrace) | 8112 |
| A fixing and interconnecting set for 3 KTK collectors **(for 6 anchors or 3 supports + 1 X-shaped windbrace) | 8113 |
| A fixing and interconnecting set for 4 KTK collectors **(for 8 anchors or 4 supports + 1 X-shaped windbrace) | 8114 |
| A fixing and interconnecting set for 5 KTK collectors **(for 10 anchors or 5 supports + 1 X-shaped windbrace) | 8115 |
**Fixing and interconnecting sets serves for collector field completing by help of aluminium profiles and screw joint with isolation.
Anchors even supports and angle struts are not included, please select them from page 8 according to roof and tile type.
| Holder set for solar collector, flat roof | 6859 |
| Angle strut - flat roof | 6860 |
| Stainless steel anchor to be mounted on supporting board | 6857 |
| Zinc dipping stainless steel anchor for pantile tiles | 7929 |
| Aluminum Anchor for a roof with slate tiles, adjustable height | 6920 |
| Aluminum Anchor for a roof with pantile tiles, adjustable height |
7013 |
| Aluminum Anchor for a roof with pantile tiles, for roof rafters, adjustable height | 6932 |
Solar sets
|
In order to cover the demand for DHW in case of a long-lasting lack of sunshine, it is necessary to combine solar heating with some traditional way of water heating. The most advantageous method is inserting a solar tank before the existing system of water heating, utilizing thus the maximum energy from the sun with minimum demand for water heating control and maintaining a comfort supply of hot water. Water afterheating can also be done directly in the solar tank; an electric heating rod with a thermostat can be inserted into any of the solar tanks offered by us. A central heating boiler can be used for afterheating twin-coil tanks or combination tanks.
Using a thermostatic mixing valve at the hot water outlet is recommended, enabling to set a maximum desired temperature of outgoing hot water. In public buildings its use is obligatory. |
Pump groups
Solar regulators
|
Solar regulators are electronic brains of a solar systems. They check and evaluate the temperatures sensed and control the operation of systems with solar collectors.
List of solar regulators:
STDC regulator
SRS 3 and SRS 4 Solar regulators
DeltaSol® BS/3 and BS plus
DeltaSol® ES
DeltaSol® M Solar regulator
SR 1.1 Analog solar regulator
|
Accessories for solar collectors
List of accessories:
- SAFETY ELEMENTS
- EXPANSION TANKS
- KOLEKTON P SUPER LIQUID FOR SOLAR SYSTEMS
- AEROFLEX INSULATION
- AEROFLEX Installation Accessories
- WILO PUMPS
- STORAGE WATER HEATERS AND ACCUMULATION TANKS
SAFETY ELEMENTS
|
Temperature Pressure Relief Valve prevents damage to a solar system caused by exceeding the max. permissible pressure. In case of a breakdown the system might overheat, making the pressure rise extremely.
|
 |
||||||
Automatic Air Vent removes air and gases from the heat carrier. It is placed at the highest point of a solar system (near a collector).
|
 |
||||||
hermostatic Mixing Valve for DHW limits the max. required DHW temperature (adjustable between 30 and 60°C). Water temperature inside a tank fluctuates due to the effects of solar collectors and can reach even very high temperature; the valve cools down the hot water by mixing it with cold water at the outlet.
|
 |
||||||
Air separator separates effectively even small air bubbles from the antifreeze liquid and thus increases the efficiency of the entire solar system. It can be used separately or as a complement to FlowCon B Pump Group, or it can be also used for FlowCon S (S/Pro) Pump Group, creating thus a 2-tube assembly.
|
|
EXPANSION TANKS
An expansion tank serves for compensating fluctuations in volume and pressure due to big temperature changes in a solar system.
|
 |
KOLEKTON P SUPER LIQUID FOR SOLAR SYSTEMS
Liquid heat carrier based on propylen glycol with ecological rust inhibitors additives. The liquid is used undiluted, frost resistance to -32°C, ice slurry develops at lower temperatures. Boiling temperatures are higher than those of water (152°C at 3 bar pressure).
|
 |
AEROFLEX INSULATION
Aeroflex SSH Temperature insulation is made of synthetic rubber (EPDM) without addition of PVC and FCKW. It is soft and flexible, withstands temperatures up to 175°C for a long time, is highly UV-, weather- and ozone-resistant. Excellent insulating properties (thermal conductivity at 40°C is 0.04 W/mK).
|
|
AEROFLEX Installation Accessories
|
 |
WILO PUMPS
Wet running, standard pump with 3 rpm levels.
|
|
||||||||||||||||||||||||||||||||||||
Dimensional drawing |
Single-phase motor 230 V/50 Hz with a built-in capacitor.
El. wiring |
| Wilo-Star-RS | Code | DN | G | l0 | l1 | l3 | l4 | a | b1 | b2 | b3 | b4 | Weight about kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | - | - | mm | PN 10 | ||||||||
| RS 25/4 | 907 | R1 | 1 1/2 | 180 | 97 | 90 | 79 | 33 | 100 | 92,5 | 54 | 73 | 2,4 |
| RS 15/6 | 619 | 1 | 130 | 97 | 65 | 79 | 28,1 | 100 | 92,5 | 54 | 73 | 2,3 | |
STORAGE WATER HEATERS AND ACCUMULATION TANKS
They serve for storing the energy from solar collectors. The energy is stored when the sun shines and retrieved when there is no sunshine. In the period of insufficient sunshine the missing energy must be replenished from another source. In case of heating sanitary water, it can be done in two ways:
1. It can be heated by means of an electric heating rod (or by a boiler through the second heating coil inside the tank),
in such a case the solar system serves as an independent source of hot water.
2. The solar system can be used for pre-heating the water for another, currently used method of sanitary water heating
(electric storage water heater, instantaneous water heater, heat pump, gas fired boiler etc.); in this case the tank volume
as well as the solar energy can be both fully utilized.
In both the cases sufficient amount of hot water is available all year round and thanks to an electronic regulation its operation is fully automated.
Are you interested in this product? Contact us using form below or contact us directly on e-mail info@mrs.cz or call +420 545 175 844 or +420 602 707 001.