Sunday, 25 December 2016
ROSHAN SOLAR SOLUTION is India's upcoming solar power provisioning company, serving many customers. We stand by our work even long after we’ve put the solar panels in your infrastructure
We are India’s leading company for upkeep of Solar Power Infrastructure or Solar Farms Our in-house team will take care of your entire solar power Projects or Solar Farms from Pre Planning stages to commissioning along with Planned & Seasonal maintenance needs. Entire Life Cycle will be taken care by ROSHAN SOLAR SOLUTION.
Solar power has numerous advantages over fossil-fueled power generation. For one, the fuel source, sunlight, is delivered to the site for free. The risks of mining, exploring and transporting fossil fuels such as coal, natural gas and oil are completely eliminated. Since there is no waste, there is no need to contain or store waste products. In comparison to both coal and nuclear-fired generation, this is a significant advantage.
Solar water heating (SWH) is the conversion of sunlight into renewable energy for water heating using a solar thermal collector. Solar water heating systems comprise various technologies that are used worldwide increasingly. In a "close-coupled" SWH system the storage tank is horizontally mounted immediately above the solar collectors on the roof. No pumping is required as the hot water naturally rises into the tank through thermosiphon flow. In a "pump-circulated" system the storage tank is ground- or floor-mounted and is below the level of the collectors; a circulating pump moves water or heat transfer fluid between the tank and the collectors.
Solar water heating (SWH) is the conversion of sunlight into renewable energy for water heating using a solar thermal collector. Solar water heating systems comprise various technologies that are used worldwide increasingly.
In a "close-coupled" SWH system the storage tank is horizontally mounted immediately above the solar collectors on the roof. No pumping is required as the hot water naturally rises into the tank through thermosiphon flow. In a "pump-circulated" system the storage tank is ground- or floor-mounted and is below the level of the collectors; a circulating pump moves water or heat transfer fluid between the tank and the collectors.
SWH systems are designed to deliver hot water for most of the year. However, in winter there sometimes may not be enough solar heat gain to deliver sufficient hot water. In this case a gas or electric booster is used to heat the water.
Wednesday, 30 November 2016
Solar Home Lighting System According to Requirement
| Photovoltaic modules/ panels (Wp) |
Battery capacity | Maximum recommended load and duty cycle |
|
| I | 37-40 | 12 V, 20 AH (Tubular L.M./Gel VRLA) |
20 Watt Load for 4 hrs. (80 Watt hrs./day) |
| II | 50 | 12 V, 60 AH (Tubular L.M./Gel VRLA) |
30 Watt Load for 4 hrs. (120 Watt hrs./day) |
| III | 70-80 | 12 V, 80 AH (Tubular L.M./Gel VRLA) |
45 Watt Load for 4 hrs. (180 Watt hrs./day) |
| IV | 100 | 12 V, 80 AH (Tubular L.M./Gel VRLA) |
60 Watt Load for 4 hrs. (240 Watt hrs./day) |
| V | 125 | 12 V, 150 AH (Tubular L.M./Gel VRLA) |
75 Watt Load for 4 hrs. (300 Watt hrs./day) |
Roshan Solar Solution is provide Solar Power Packs (sometimes referred to as solar
kits) that are ideal for meeting the growing energy needs of areas
where there is either an intermittent or no grid supply of electricity.
These are also very useful in semi-urban and rural areas that often
experience constant voltage fluctuations. Embracing proven solar
technology, Roshan Solar Solution is provide Solar Power Packs are reliable, energy efficient,
environmentally friendly and completely maintenance-free. Modular in
design, these can be easily customised and upgraded to fulfill increased
power requirements.
If you are interested in purchasing a Solar Power Pack, please contact us.
Features
- Modular design with the option of customizing and adding on Solar Modules
- Designed to power fans, lights, TVs. Ideal for rural & suburban households
- Modules available with 2-4 hours/day back up in standalone mode along with 4-8 hours/day back up in hybrid mode
- Works on both Solar and AC mains power
- Protected against over load, short circuit, battery deep discharge, over charge and reverse flow conditions
- In-built AC mains battery charger and Solar Charge Controller with temperature compensation
- Table/Wall mountable inverter
Solar energy generation processes have improved in the last few decades
to the point where they have become the perfect replacement for
traditional, environmentally damaging energy sources. As a result, the
world is seriously preparing for a rapid shift towards renewable energy –
especially solar. Nations are frantically maximising energy yield and
developing the next …
Wednesday, 23 November 2016
Coloring Rendering Index (CRI) - CRI represents the quality of light and its faithfulness to render colors correctly, that is, to enable us to perceive colors as we know them. The ideal CRI is 100, and some incandescent bulbs approach this level. LEDs and CFLs use different design components in trying to equal the CRI of incandescent bulbs. LED bulbs CRI ratings range from 70 to 95, and the best CFLs have ratings in the mid 80s. The LED CREE CR6 bulb, for example, features a CRI of 90 Warm White making it one of the highest in the industry.
Correlated Color Temperature (CCT) - is the measure used to describe the relative color appearance of a white light source. CCT indicates whether a light source appears more yellow/gold/orange or more blue, in terms of the range of available shades of "white." CCT is given in kelvins (unit of absolute temperature). 2700K is "Warm" and 5000K is "Cool". The typical light color we are used to in indoor home lighting is "warm", 2700 - 2800K.
Lumen - a unit of standard measurement that is used to describe the amount of light contained in an area as perceived by the human eye. The more lumens, the brighter the light. You can use lumens to compare the brightness of any bulb, regardless of the technology behind it, and regardless of whether it's incandescent, CFL or LED.
Luminous Flux - the flow of light measured in lumens. With light bulbs, it provides an estimate of the apparent amount of light the bulb will produce. Depending on the application, much of an incandescent's light is wasted because it's emitted in every direction. LED bulbs, on the other hand, put out directional light, sending all of the light exactly where it's needed.
In practical application, when buying a light bulb, we should look for bhlbs which produce more light but consumes less energy. Understanding lumens as a measure of brightness makes it easier to select the most efficient bulb for your application. This is also important
Long-lasting - LED bulbs last up to 10 times as long as compact fluorescents, and far longer than typical incandescents.
Durable - since LEDs do not have a filament, they are not damaged under circumstances when a regular incandescent bulb would be broken. Because they are solid, LED bulbs hold up well to jarring and bumping.
Cool - these bulbs do not cause heat build-up; LEDs produce 3.4 btu's/hour, compared to 85 for incandescent bulbs. Common incandescent bulbs get hot and contribute to heat build-up in a room. LEDs prevent this heat build-up, thereby helping to reduce air conditioning costs in the home.
Mercury-free - no mercury is used in the manufacturing of LEDs.
More efficient - LED light bulbs use only 2-17 watts of electricity (1/3rd to 1/30th of Incandescent or CFL). LED bulbs used in fixtures inside the home save electricity, remain cool and save money on replacement costs since LED bulbs last so long. Small LED flashlight bulbs will extend battery life 10 to 15 times longer than with incandescent bulbs.
Cost-effective - although LEDs are initially expensive, the cost is recouped over time and in battery savings. LED bulb use was first adopted commercially, where maintenance and replacement costs are expensive. But the cost of new LED bulbs has gone down considerably in the last few years. and are continuing to go down. Today, there are many new LED light bulbs for use in the home, and the cost is becoming less of an issue. To see a cost comparison between the different types of energy-saving light bulbs, see our Light Bulb Comparison Charts.
Light for remote areas and portable generators - because of the low power requirement for LEDs, using solar panels becomes more practical and less expensive than running an electric line or using a generator for lighting in remote or off-grid areas. LED light bulbs are also ideal for use with small portable generators which homeowners use for backup power in emergencies.
In this style LED bulb, clusters of LEDs are covered by a lens which spreads the light over a wider area, like standard incandescent bulbs. Available in standard Edison bases, these bulbs are used as area lighting for rooms, porches, reading lamps, accent lamps, hallways and low-light applications where lights remain on for extended periods.
Available in 40, 60 75, 100 watt equivalent; clear or frosted. Diffused LED bulbs
Dimmable Globe LED bulbs
Designed for bathroom vanities or anywhere a globe bulb is required, these bulbs produce light equivalent to a 40-watt incandescent bulb, yet only consume 10 watts of power. Dimmable from 100% to 10%, these bulbs have a 200 degree beam angle to cast light in a wide area.
LEDs
|
CFLs
|
Incandescents
|
|
Frequent On/Off
Cycling
|
no effect
|
shortens lifespan
|
some effect
|
Turns on instantly
|
yes
|
slight delay
|
yes
|
Durability
|
durable
|
fragile
|
fragile
|
Heat Emitted
|
low (3 btu's/hr)
|
medium (15 btu's/hr)
|
high (85 btu's/hr)
|
Sensitivity to high
temperature
|
some
|
yes
|
no
|
Sensitivity to low
temperature
|
no
|
yes
|
no
|
Sensitivity to
humidity
|
no
|
yes
|
some
|
Hazardous Materials
|
none
|
5 mg mercury/bulb
|
none
|
Replacement frequency
(over 50k hours) |
1
|
5
|
40+
|
LED light bulbs will eventually be what we use to replace incandescent bulbs – CFLs are a temporary solution to energy-efficient lighting. The reason LEDs have not yet displaced CFLs from the market are twofold: the first generation LED bulbs had a narrow and focused light beam, and the cost of the LED bulbs was too high.
|
LED
|
CFL
|
Incandescent
|
|
|
Light bulb projected lifespan
|
50,000 hours
|
10,000 hours
|
1,200 hours
|
|
Watts per bulb (equiv. 60 watts)
|
10
|
14
|
60
|
|
Cost per bulb
|
2475
|
272
|
86
|
|
KWh of electricity used over
50,000 hours
|
500
|
700
|
3000
|
|
Cost of electricity (@ 0.10per KWh)
|
3422
|
4819
|
20655
|
|
Bulbs needed for 50k hours of use
|
1
|
5
|
42
|
|
Equivalent 50k hours bulb expense
|
2475
|
1360
|
3614
|
|
Total cost for 50k hours
|
5903
|
6179
|
24269
|
Subscribe to:
Posts (Atom)
