Title of Invention

"CUBOIDAL SHAPED GREEN SHELTER"

Abstract The present invention relates to cuboidal shaped Green shelter comprising of an outer skin made of heat insulating or solar reflecting material; inner skin made of heat conducting material; PCM filled in panels; PIU; and at least one AC with/without free cooling.
Full Text Filed of the invention
The present invention relates to cuboidal shaped green shelter which is integration of power interface unit (PIU), phase change material (PCM) based thermal back-up, filter less air conditioner with/without free cooling with fiber glass reinforced plastic/ glass reinforced plastic (FRP/GRP)/any other insulated material as outer skin, based shelter for energy efficient telecom application.
Background description
The present telecom sites are made using servo-stabilizer, isolation transformer, lightening arrestor, AC distribution board (ACDB), normal air-conditioner with filter, auto mains failure (AMF) panel and diesel generator. There are also few sites where servo stabilizer, isolation transformer, lightening arrestor, ACDB, AMF panel has been replaced with electrical panel called PIU along with normal air-conditioner and generator. The shelters are made using pre-painted galvanized steel as inner and outer skin, sandwiched with PUF (poly ethylene foam).
Disadvantages of prior art:
The shelter is made of Gl as outer skin, which gets heated very quickly due transfer of heat. The solar gain in the shelter is directly proportional to the Delta T (temperature difference) of outer skin and inner skin. Because of better heat conductor, the outer skin temperature under direct sun crosses beyond ambient temperature. The temperature inside the shelter is maintained around 25-30Deg C using air conditioner, creates very high Delta T (temperature difference), hence higher solar gain. The outer skin coated with normal paint also prone to rust which needed frequent maintenance or painting at site.
The telecom shelter is also equipped with battery as an electrical back-up during emergency. During power cut, the air conditioners stops operation (even though the battery back-up is there to run the telecom equipment) and inside temperatjre starts rising because of heat dissipated by electronic equipment inside and solar gain. Within short duration, temperature raises and leads to thermal shut-down, hence the
site outage. To avoid it, most of the telecom sites are fitted with diesel generator, which starts during power failure to support electrical power to telecom equipment and air conditioning power to maintain the temperature. In India, the average power failure is 4-5 hours in urban areas, hence huge cost of operation of the generator and further more in rural areas the power cut is more.
Apart from this, the generator running creates pollution and irritation to the localities because of noise and vibration.
These telecom sites also need frequent air conditioner filter maintenance as they were running continuously (24hrs, 365 days). Any filter choke can create high temperature inside the shelter or higher energy consumption of air-conditioner.
In earlier known shelters, inner skin and outer skin were made of heat-insulated material. The limitation was transfer of heat, mounting of telecom unit on the wall. In addition, the panels filled with phase change material (PCM) were placed vertically on each other with wall. However, the above arrangement resulted in high variation in threshold temperature, ineffective thermal backup. There was also problem that the PCM material being deposited at the bottom during phase separation and resulting low efficiency. Surprisingly, when the panels stacked horizontally along with wall at angle allowing air to flow across both sides of the panel which resulted in full thermal backup and it also sorted out the problem of deposition at bottom.
Objective of the present invention:
Main object of the present invention is to bring down the solar gain inside the shelter by using insulated material as outer skin or solar reflection material coating which reflects maximum sun heat.
Another object of the invention is to reduce heat dissipated by supporting electrical equipment like servo stabilizer, isolation transformer, AC distribution board(ACDB), Auto mains failure (AMF) panel etc. by using high efficient electrical panel like power interface unit (PIU).
Another object of the invention is to avoid generator running by using thermal back-up Phase Change Material (PCM) along with batteries for saving in operational cost, less pollution to environment and no irritation to localities.
Still another object of the invention is to avoid deposition of the PCM at the bottom the panel and prevent the lowering of efficiency.
Still one more object of the invention is to reduce frequent maintenance of the air conditioners, hence better reliability and low power consumption at site.
Brief description of the accompanying drawings:
Fig 1 shows the view of green shelter with front door(2) wherein phase change material (PCM) is filled in HDPE panel and the panels (3) and (4) are arranged horizontally at an angle to allow cross air flow.The shelter is equipped with at least one air conditioner^ preferred embodiment two air conditioner (5) are provided)as shown in fig 1. Fig 2 shows cross-sectional view of panel wherein inner skin (6),outer skin(7) and PUF(8) is sandwiched between inner and outer skin.
Description of the present invention:
The present invention relates to cuboidal shaped Green shelter comprising of an outer skin made of heat insulating or solar reflecting material; inner skin made of heat conducting material; PCM filled in panels; PIU; and at least one AC with/without free cooling.
In an embodiment of the invention, the outer skin is Fiberglass Reinforced Plastic (FRP) or Glass Reinforced Plastic (GRP).
In another embodiment of the invention the outer skin is Zinc Aluminium alloy coated steel painted with PVDF.The outer skin is Zinc Aluminium alloy coated steel painted with solar reflection compound.
In another embodiment of the invention relates to a green shelter having a panel which is made of HDPE mounted horizontally at an angle to allow cross airflow.
Another embodiment of the invention is to provide a green shelter in which the PIU is integrated with PCM-DG management circuitry.
One more embodiment of the invention is to provide a green shelter with at least one filter less air conditioner with or without free cooling unit.
Still another embodiment of the invention is to provide a green shelter with SMPS rectifying unit, temperature controller and electrical accessories.
The FRP or other insulated material offers very high heat insulation and does not gets heated up like heat conductor material (steel, aluminium etc. without solar reflection coating). Because of this feature, the delta T between outer and inner skin are reduced, hence less solar gain. The outside heat insulted material also offer resistant corrosion hence longer life. In alternate to that, zinc alloy coated steel with organic-inorganic solar reflection compound with PVDF paint offers the higher solar reflectivity hence reduce Delta T and PVDF paint offers longer life, hence less maintenance.
the Phase change material (PCM) used in the shelter to provide thermal back-up to reduce generator running during power failure. During power, the air conditioner run and maintains the temperature and battery charger charges the battery alongwith equipment power. During power failure, the PCM maintains temperature and battery maintains power back-up which avoids the need of generator. Tne PCM management circuit provided with PIU measures the battery voltage and telecom shelter temperature continuously. In case of power failure more than the temperature / battery back-up sensed by PCM DG management circuitry, starts generator then only. The PCM mounted alongwith the wall horizontally at angle to allow air circulation over both sides of the panel to provide uniform heat absorption/dissipation. It also prevents getting PCM material deposited at the bottom of the panel over the period of time, (refer figure 1)
The fan fitted with PCM provides enough air circulation to increase thermal absorption of PCM and maintains common temperature inside the shelter. The Green shelter configured with enough battery and thermal back-up as per area specific power failure to avoid complete DG running. It also can be used as thermal electrical back-up for sometime and rest with generator. In area where there is no
power, the PCM thermal back-up alongwith PCM DG management circuitry runs generator in cyclic mode for few hours and then goes in back-up mode vice-versa. Out of 24 hrs, the generator runs only few hours and rest managed by back-up during no power case.
The reduction in generator running reduces diesel consumption, operational cost, generator maintenance, noise air pollution and vibration.
The PIU integrated in Green Shelter offers PCM DG management circuitry operation and reduces heat dissipation because of its high efficiency. The PIU further reduces air conditioning running, because of less heat dissipation, hence further energy saving. The PIU also can accommodate SMPS, telecom battery charger. Because of less footprint of PIU, it offers additional space so the size of the green shelter can be optimized, which reduces further solar gain and capital cost.
The filter less AC integrated with PIU and controller maintains the temperature during power availability. The efficiency of the AC is not reduced over the period, because of no filter and does not need frequent maintenance.
The optimizing infrastructure is achieved by replacing mentioned air -conditioner with panel air-conditioner and filter less technology. It does not need filter to protect the dust. It provides the complete avoidance of regular maintenance and maintains the same efficiency hence further energy saving for telecom shelter. Filter less panel air conditioner with or without free cooling unit along with temperature controller is used to maintain the temperature in telecom shelter below 3-4 deg C of PCM temperature threshold. The PCM maintains the temperature 1-4 deg C above than its threshold during thermal backup.







I/We Claim:
1. The cuboidal shaped Green shelter comprising of:
an outer skin made of heat insulating or solar reflecting material; inner skin made of heat conducting material; phase change material filled in panels;power interface unit; and at least one air conditioner with/without free cooling.
2. A green shelter as claimed in claim 1, wherein the outer skin is made up of Fiberglass Reinforced Plastic (FRP) or Glass Reinforced Plastic (GRP).
3. A green shelter as claimed in claim 1, wherein the outer skin is made up of Zinc Aluminium alloy coated steel painted with PVDF.
4. A green shelter as claimed in claim 1, wherein the outer skin is made up of Zinc Aluminium alloy coated steel painted with solar reflection compound.
5. A green shelter as claimed in claim 1, wherein the panel is HDPE mounted horizontally at an angle to allow cross airflow.
6. A green shelter as claimed in claim 1, wherein the power interface unit is integrated with phase change material-diesel genset (PCM-DG) management circuitry.
7. A green shelter as claimed in claim 1 .wherein the shelter is provided with at least one filter less air conditioner.
8. A green shelter as claimed in claim 1, wherein the shelter is provided with SMPS rectifying unit.
9. A green shelter as claimed in claim 1, wherein the shelter is provided with temperature controller and electrical accessories.

Documents:

1865-del-2004-1-Petition Others-(23-08-2012).pdf

1865-del-2004-abstract.pdf

1865-del-2004-claims.pdf

1865-del-2004-complete specification(granted) asfile.pdf

1865-del-2004-complete specification(granted).pdf

1865-del-2004-Correspodence Others-(15-06-2011).pdf

1865-del-2004-Correspondence Others-(12-08-2011).pdf

1865-DEL-2004-Correspondence Others-(21-02-2012).pdf

1865-del-2004-Correspondence Others-(21-07-2011).pdf

1865-DEL-2004-Correspondence Others-(29-07-2011).pdf

1865-DEL-2004-Correspondence-Others-(11-08-2009).pdf

1865-DEL-2004-Correspondence-Others-(23-12-2009).pdf

1865-del-2004-correspondence-others.pdf

1865-del-2004-correspondence-po.pdf

1865-del-2004-description (complete).pdf

1865-del-2004-drawings.pdf

1865-DEL-2004-Form-1-(23-12-2009).pdf

1865-del-2004-form-1.pdf

1865-del-2004-form-13.pdf

1865-del-2004-form-19.pdf

1865-del-2004-form-2.pdf

1865-del-2004-form-26.pdf

1865-del-2004-form-3.pdf

1865-del-2004-form-9.pdf

1865-del-2004-Petition Others-(23-08-2012).pdf

1865-del-2004-Petition-137-(12-08-2011).pdf

1865-DEL-2004-Petition-138-(11-08-2009).pdf

1865-DEL-2004-Post-Grant Opposition-(15-04-2011).pdf

1865-DEL-2004-Post-Grant Opposition-(20-04-2011).pdf

1865-DEL-2004-Post-Grant Opposition-(21-02-2012).pdf

1865-DEL-2004-Post-Grant Opposition-(23-01-2012).pdf

1865-DEL-2004-Post-Grant Opposition-(29-07-2011).pdf

1865-del-2004-Post-Grant-Opposition-(06-09-2010).pdf


Patent Number 197108
Indian Patent Application Number 1865/DEL/2004
PG Journal Number 4/2010
Publication Date 22-Jan-2010
Grant Date 08-Sep-2006
Date of Filing 29-Sep-2004
Name of Patentee ACME TELE POWER PVT, LTD.
Applicant Address A-56, OKHLA INDUSTRIAL AREA, PHASE I, NEW DELHI-110 020, INDIA.
Inventors:
# Inventor's Name Inventor's Address
1 MR. MANOJ KUMAR UPADHYAY A-56, OKHLA INDUSTRIAL AREA, PHASE I, NEW DELHI-110 020, INDIA.
2 MRS. MAMTA UPADHYAY A-56, OKHLA INDUSTRIAL AREA, PHASE I, NEW DELHI-110 020, INDIA.
3 MR. KRISHAN MILAN UPADHYAY A-56, OKHLA INDUSTRIAL AREA, PHASE I, NEW DELHI-110 020, INDIA.
PCT International Classification Number H05K 9/00
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA