Navgathi Marine Design & Constructions Pvt. Ltd.

HANJIN ARGENTINA delivered

Sandith — Thu, 16 May 2013 14:42:03 +0000

Third vessel in the series of 3600 TEU class container carriers ordered by Pacific International Lines, is successfully delivered from Hyundai Samho Heavy Industries, South Korea.

Hanjin Argentina a 3600 TEU container vessel, one among the series of four vessels ordered by Pacific International Lines of Singapore, was delivered from Hyundai Samho Heavy Industries, South Korea. The first two vessels among the series Hanjin Turkey and Hanjin Indonesia were delivered in the first quarter 2013. These vessels were built under the supervision of Navgathi Marine.

Navgathi Marine is providing the new building supervision services to eight vessels of PIL under construction at Hyundai Samho Heavy Industries and Hyundai Mipo Dockyard of South Korea. A site team of Navgathi is there to manage these projects.

The four vessels of Hanjin series are of length 221 meters and breadth 35 meters. They are designed for a speed of 21.2 knots, and are fitted with Main Engine: Hyundai-MAN B&W of nominal rating 20,601 kW x 87.9 RPM.

Pacific International Lines (PIL) incorporated in Singapore is one of the largest ship-owners in Asia. PIL operates container liner services covering the whole of the Far East to Europe, Black Sea, Canada, and the Indian sub-continent, Red Sea/Gulf, East Africa, South/West Africa, Australia, New Zealand, East Coast of South America and West Coast of USA.

Without Batteries

Sandith — Wed, 20 Mar 2013 07:04:29 +0000

Introduction

Solar energy possible with other renewable energy can be used to power the requirements of home as well as office. This use of free power can not only improve the green credentials but also make economic sense as the cost of power is constantly increasing. There are different kinds of systems possible – some of which are outlined below.

GRID-TIE

Single Phase

In this kind of installation the solar panels produce electrical energy and is fed to the grid tie inverter. The output of this inverter is directly connected to the loads. This is a special type of inverter which can take the energy from the panels and only the remaining required energy is taken instantaneously from the grid connection.

These inverters have anti-islanding effect to protect the people working on the supply line which means that the solar energy will cut off when the grid supply is not there. To continue to have power even in grid failure we need to have battery back up system described below.

Projects

Single Phase

Midnite Solar Charge Controller

Sandith — Thu, 14 Mar 2013 09:14:06 +0000

Classic 150

FEATURES:

150 operating voltage

Max current out: 96 amps

ETL listed to UL1741 and CSA

12-72V battery

Built in DC-GFP and Arc Fault Detector

Solar, wind and hydro MPPT modes

Five years warranty

MidNite Solar offers an industry first, an extended warranty for all the Classic MPPT charge controllers. Six months prior to the end of the warranty period customers can ship their Classic back to MidNite Solar with a check for $147 dollars plus shipping and we will replace any wearable parts and do a general tune-up. This will extend the warranty by 2 additional years, another good reason to purchase a Classic.

Technical Specifications

Comparison chart with competitors

Solbian Flexible Panels

Sandith — Thu, 14 Mar 2013 04:41:15 +0000

FLEXIBLE PANELS

Navgathi is the exclusive India distributor for Solbian panels from Italy

Why Install Solbian Flexible Panel

Because it is a FLEXIBLE panel with high-efficiency crystalline silicon cells that can adapt to curved surfaces, such as the deckhouse of your boat.
Because it is an ULTRALIGHT panel. Only 2.1 kg per square meter, compared to more than 12 kg for traditional panels.
Because it offers different installation solutions. From STRUCTURAL ADHESIVE that will make it part of your boat to STAINLESS STEEL EYELETS enabling easy installation and removal

ELECTRICAL SPECIFICATIONS	CP-125	CP-140
MAX. POWER -Pmax- WATTS	128	143
OPEN CIRCUIT VOLTAGE-Voc, VOLTS	19.8	19.8
SHORT CIRCUIT CURRENT-Isc, AMPS	8.6	8.6
VOLTAGE AT MAX.POWER POINT-Vmpp,VOLTS	15.5	15.5
CURRENT AT MAX.POWER POINT-Impp-AMPS	8.1	9.0
NO.OF CELLS IN SERIES CONNECTED,N	32	32
NOMINAL VOLTAGE -V , VOLTS DC	12	12

MECHANICAL SPECIFICATIONS
MODULE SIZE- L XW X T , mm	1380X680X2	1380X680X2
MODULE WEIGHT(BARE)- KG	2	2

Kerala Ports Minister Shri. K. Babu flags off Sun CRZ solar boats

Sandith — Fri, 08 Mar 2013 06:15:11 +0000

Navgathi Marine to boost Indian tourism with SunCRZ Solar boats series. Shri. K Babu, Minster for Fisheries, Ports & Excise, Kerala inaugurated the launch of first 4 passenger solar boats SunCRZ9 in Kerala.

Kerala ports minister Shri. K. Babu inaugurating Sun CRZ 9 solar boat

Shri. K Babu, Minster for Fisheries, Ports & Excise, Kerala inaugurated the launch of first 4 passenger solar boats SunCRZ9 in Kerala. Navgathi Marine an Internationally listed solar boat manufacturer has introduced these solar boats in India.

Navgathi Marine is planning to boost the Indian tourism with Sun CRZ series of solar boats. The latest 4 passenger solar boat SunCRZ 9 was inaugurated by Kerala fisheries & ports minister, Shri. K. Babu during the save power expo 2013 at Le Meridian Hotel Cochin. Navgathi officials told that these boats are going to be the future of Kerala tourism. Later Minister discussed with Mr. Sandith Thandasherry CEO, Navgathi Marine, the possibility of converting the conventional fishing boats of Kerala to solar powered. Navgathi has recently introduced Solar fishing boats in Gujarat and signed MOU with Gujarat Govt. for the conversion of 500 fishing boats to solar powered.

Navgathi is also specialized in Solar Ferries of ranges 40 Pax and 75 Pax. With this launch the firm hopes to enter the compact solar boat segment. There are two variants of SunCRZ 9, Deluxe model and the Premium model at an attractive price. Both of them are made of robust construction using FRP (2 layer CSM 450 mat and 1 layer of WRM 600). Only marine grade resin (isothalic) and kerox colour pigment are used for durability and finish.

The features of the boat include: length (3.6 m), breadth (1.65 m), depth (0.60 m), draft (0.3 m); solar power (500 W), battery bank (1.56 kWh), propulsion motor (600 W), and speed (5 knots.). On a bright sunny day the boat can cruise at 4 knots for the whole day. The boat has been tested for stability as per Inland Rules of Kerala.

Navgathi in joint development with Team Sustain had introduced India’s first solar boat “Sun Rider” in 2008. Now the firm is planning to introduce the renovated 10 pax model under the brand name Sun CRZ with many interesting modifications as per the industrial feedback.

003-Office Computers by Solar

Sandith — Fri, 01 Mar 2013 08:05:57 +0000

Executive Summary

Navgathi on a strong foundation of solar installation on boats turned towards land based installation. The first test case was the computer UPS system in Navgathi office. A suitable grid-tie inverter was selected; however to utilize the solar energy during grid outage a relay system with charge controller that works under this scenario was proposed. This ensure that all the energy produced by the solar panels can be utilized.

Solar Panels installed on roof of Navgathi office

Scenario Before Installation

The office computers, 15 in number in one floor, were powered through in-line UPS (Liebert 3 kVA), that ensures un-interrupted power supply when KSEB (State Electricity Board) grid fails. The overall consumption of the office top floor was around 40 units per day including air-conditioners and other loads.

The objective was to reduce this electricity consumption by means of solar installation. Since most of the consumption is in day-light hours (8:30 AM – 6:00 PM) and that we had a dedicated UPS for computers and lights/fans, it made sense to install grid- tie system without batteries.

First Stage: Grid-tie Inverter

We experimented on the angle of the solar panel installation. Initially we placed then horizontally and noted the power generation. Once the structure was completed for placing them at 10 degrees South facing, the energy produced increase by 25%. On a average we could generate 19 kWh in a day (February in Kochi).

Solar Panels: 17 panels of 230 W each = 3910 W
Make: VEGA
Grid Tie-Inverter: 3000 W
Make: SMA Sunny Boy 3000 TL

Second Stage: Charge Controller and Relay

The solution was add a charge controller to connect the solar panels with the battery bank of the UPS. This connection would be activated when the grid fails. This was made possible by means of a relay system that will automatically change over the connection from grid-tie inverter to charge controller.

A big challenge in this relay system was that when the solar panels are connected with the grid-tie inverter then it is in series connection whereas when it is connected with the charge controller the solar panels have three groups of panels in parallel – six each in two sets and five in other based on the limitation of input voltage.

Charge Controller: 5000 W @ 96 V
Make: Midnite Solar
Relay & Controls: In-house

Benefits

The system give the following benefits:

First Stage:

Drastic reduction in electricity bill

Second Stage:

Increased back-up time of UPS in the day time (when is grid fails)
Complete utilization of solar energy from panels

All equipments, cable, junction box etc. are IEC approved.

Costing

First Stage: 5.5 lakhs
Second Stage: 1 lakh
Total System: 6.5 lakhs

Above prices are excluding MNRE subsidy. Firms making profit can also get the benefit of depreciation up to 70%.

Download

Download the case study here.

Office UPS Powered by Solar Energy

Sandith — Wed, 27 Feb 2013 14:27:32 +0000

Executive Summary

Solar Panels installed on roof of Navgathi office

Scenario Before Installation

First Stage: Grid-tie Inverter

Solar Panels: 17 panels of 230 W each = 3910 W
Make: VEGA
Grid Tie-Inverter: 3000 W
Make: SMA Sunny Boy 3000 TL

Second Stage: Charge Controller and Relay

Charge Controller: 5000 W @ 96 V
Make: Midnite Solar
Relay & Controls: In-house

Benefits

The system give the following benefits:

First Stage:

Drastic reduction in electricity bill

Second Stage:

Increased back-up time of UPS in the day time (when is grid fails)
Complete utilization of solar energy from panels

All equipments, cable, junction box etc. are IEC approved.

Costing

First Stage: 5.5 lakhs
Second Stage: 1 lakh
Total System: 6.5 lakhs

Above prices are excluding MNRE subsidy. Firms making profit can also get the benefit of depreciation up to 70%.

Dredger for Sale

Sandith — Tue, 19 Feb 2013 09:07:00 +0000

Cutter Suction Dredger For Sale

Length – 17.5 m

Breadth – 3.5 m

Height – 3 m

Output – 80 cu.m/hr (solid)

Contact +91-9497185580 (George Mathew)

Indicative Price – 1.55 Cr

Contact +91-9497185580 (George Mathew)

VEGA Rigid Solar Panels

Sandith — Sat, 19 Jan 2013 13:27:34 +0000

Why VEGA Panels

Navgathi has been in the solar industry since 2008. We have tried many different kinds of panels and from different make. We have come to a conclusion that solar panels from VEGA are the best value for money in terms of performance and economics.

Introduction

VEGA solar panels are made by VEGA Solar Energy Pvt. Ltd., a company based out of Hyderabad, India.

Description

All the models described below are poly-crystalline panels with a Limited Power Warranty for 25 Years for the Performance Not less than 80% of the rated Power as per Vega Solar Warranty Policy.

STANDARD SOLAR PV MODULE – 110Wp – 160Wp

ELECTRICAL SPECIFICATIONS	VEGA-12V110	VEGA-12V115	VEGA-12V120	VEGA-12V125	VEGA-12V130	VEGA-12V140	VEGA-150	VEGA-160
MAX. POWER -Pmax- WATTS	110	115	120	125	130	140	150	160
OPEN CIRCUIT VOLTAGE-Voc, VOLTS	21	21	21	21	21	21	30	30
SHORT CIRCUIT CURRENT-Isc, AMPS	7.4	7.6	7.8	8.1	8.3	8.8	7.4	7.6
VOLTAGE AT MAX.POWER POINT-Vmpp,VOLTS	17	17	17	17	17	17	25.5	25.5
CURRENT AT MAX.POWER POINT-Impp-AMPS	6.5	6.8	7.1	7.4	7.7	8.3	6	6.5
NO.OF CELLS IN SERIES CONNECTED,N	36	36	36	36	36	36	48	48
NOMINAL VOLTAGE -V , VOLTS DC	12	12	12	12	12	12	18	18

MECHANICAL SPECIFICATIONS
MODULE SIZE- L XW X T , mm	1200X655X35	1200X655X35	1490X655X35	1490X655X35	1490X655X35	1490X655X35	1340X990X42	1340X990X42
MODULE WEIGHT(BARE)- KG	9.5	9.5	12	12	12	12	15	15
MOUNTING HOLE PITCH ON LENGTH-Y mm	900	900	900	900	900	900	900	900
MOUNTING HOLE PITCH ON WIDTH-X mm	611	611	611	611	611	611	949	949

1. All modules are made with MONO/POLY CRYSTALLINE SOLAR CELLS	4. Our standard modules supplied without bypass diode and can be arranged on request
2. All measurement tolerances on electrical parameters are lies in +/- 5%	5. All specifications are subject to change without notice.
3. All electrical parameters specified above are measured at STC conditions	6. Cable glands and cables will be provided on request at extra cost
Cell temperature 25 deg.C, 1000W/ M2 Irradiance and 1.5 AM Spectrum	7. All above modules have 10 years limited extended warranty

STANDARD SOLAR PV MODULE – 175Wp – 240Wp

ELECTRICAL SPECIFICATIONS	VEGA-175	VEGA-180	VEGA-190	VEGA-200	VEGA-210	VEGA-220	VEGA-230	VEGA-240

MAX. POWER -Pmax- WATTS	175	180	190	200	210	220	230	240
OPEN CIRCUIT VOLTAGE-Voc, VOLTS	32	32	32	32	36	36	36	36
SHORT CIRCUIT CURRENT-Isc, AMPS	7.4	7.8	8.1	8.3	8.1	8.3	8.5	8.8
VOLTAGE AT MAX.POWER POINT-Vmpp,VOLTS	26	26	26	26	29	29	29	29
CURRENT AT MAX.POWER POINT-Impp-AMPS	6.5	7.1	7.4	7.7	7.4	7.7	8	8.3
NO.OF CELLS IN SERIES CONNECTED,N	54	54	54	54	60	60	60	60
NOMINAL VOLTAGE -V , VOLTS DC	1000	1000	1000	1000	1000	1000	1000	1000


MECHANICAL SPECIFICATIONS

MODULE SIZE- L XW X T , mm	1500X990X42	1500X990X42	1500X990X42	1500X990X42	1660X990X42	1660X990X42	1660X990X42	1660X990X42
MODULE WEIGHT(BARE)- KG	18	18	18	18	20	20	20	20
MOUNTING HOLE PITCH ON LENGTH-Y mm	900	900	900	900	900	900	900	900
MOUNTING HOLE PITCH ON WIDTH-X mm	949	949	949	949	949	949	949	949

1. All modules are made with MONO/POLY CRYSTALLINE SOLAR CELLS	4. All above power modules equipped with IP65 /4 TERMINAL3 DIODE JUNCTION BOXES(TUV/UL APPROVED)
2. All measurement tolerances on electrical parameters are lies in +/- 5%	5. All specifications are subject to change without notice.
3. All electrical parameters specified above are measured at STC conditions	6. All modules having Cable glands and cables of 1 mtr length along with male/female connectors
Cell temperature 25 deg.C, 1000W/ M2 Irradiance and 1.5 AM Spectrum	7. All modules having 25 years limited extended warranty

Backhoe Dredger (KSINC)

Sandith — Wed, 16 Jan 2013 13:12:43 +0000

Project Description

The 240 litres bucket capacity back hoe dredger was build for KSINC shipyard to maintain the depth in front of the slipway.

The below dredger was build for KSINC by our Construction Division.

This compact back hoe dredger to serve the entry level dredging requirements.

Back hoe dredger
Designed by Marine experts
Built with Marine grade materials and equipments
Suitable for dredging shallow and narrow water bodies

Main Particulars:

Length overall 16.6 m
Length on pontoon 7.5 m
Breadth of pontoon 3.5 m
Depth moulded 1.1 (1.5) m
Draft mid 0.7 m
Dredging depth 4.5 m
Air draught 3.2 m
Bucket capacity 240 l
Swivel angle 180 deg
Speed of vessel 5 knots
Spud length 5.5 m
Engine Kirloskar 4R1040
76 HP @ 2200 RPM
Fuel HSD

Features:

The Compact Dredger is designed to operate in shallow and narrow waters. All the controls are centrally located for ease of use.
The entire system is run on a centrally located hydraulic system with a pump driven by the engine.
The vessel is designed as per the requirements of IRS Classification Society.
Displacement of vessel – About 14 Tonnes

Unique Features:

Self-propulsion by paddle wheels
Two hydraulic operated spuds for better stability.
Spuds can be automatically retracted and stored horizontally on deck
Use of efficient paddle wheel propulsion considering the area of operation. Propellers in such areas tend to get stuck.
Marine grade steel, surface preparation, coating and equipments are used for longer life under the harsh operating conditions
Can be controlled by a single operator