BSW Technical Services Pvt. Ltd.

21/03/2020

Hello Team Members
Good Evening!
BSW Technical Services Pvt. Ltd. Like to inform its Members and Assoiciates that we are closed from 23rd March 2020 to 31st March 2020 due to COVID-19 outbreak. Our Representatives will be working from home and will be available on telephone.

Warm Regards

Sunil Wakhloo
For BSW Technical Services Pvt. Ltd.

08/01/2018

Water Splitting Technology

Water splitting is the general term for a chemical reaction in which water is separated into oxygen and hydrogen. Efficient and economical water splitting would be a key technological component of a hydrogen economy. Various techniques for water splitting have been issued in water splitting patents in the United States. In photosynthesis, water splitting donates electrons to the electron transport chain in photosystem II.

Electrolysis of water is the decomposition of water (H2O) into oxygen (O2) and hydrogen gas (H2) due to an electric current being passed through the water. In chemistry and manufacturing, electrolysis is a method of separating chemically bonded elements and compounds by passing an electric current through them. One use of electrolysis of water or artificial photosynthesis (photoelectrolysis in a photoelectrochemical cell) is to produce hydrogen. Recently, researchers have shown that water splitting can be broken into two discrete steps using hierarchical nanostructure or polyoxometalate based redox mediators.
In power to gas production schemes, the excess power or off peak power created by wind generators or solar arrays is used for load balancing of the energy grid by storing and later injecting the hydrogen into the natural gas grid.

Production of hydrogen from water requires large amounts of energy and is uncompetitive with its production from coal or natural gas. Potential electrical energy supplies include hydropower, wind turbines, or photovoltaic cells. Usually, the electricity consumed is more valuable than the hydrogen produced so this method has not been widely used. Other potential energy supplies include heat from nuclear reactors and light from the sun. Hydrogen can also be used to store renewable generated electricity when it is not needed (like the wind blowing at night) and then used to meet power needs during the day or to fuel vehicles. The storable quality of hydrogen helps make hydrogen an enabler of the wider use of renewables, and internal combustion engines.

High pressure electrolysis
When water is pressurized and then electrolysis is conducted at those high pressures, the produced hydrogen gas is pre-compressed at around 120–200 bar (1740–2900 psi). By pre-pressurising the hydrogen in the electrolyser, energy is saved as the need for an external hydrogen compressor is eliminated. The average energy consumption for internal compression is around 3%.[6] The energy required to compress water is very much less than that required to compress hydrogen gas.

High-temperature electrolysis
When the energy supplied is in the form of heat (originating from solar thermal, or nuclear), the best path to the production of hydrogen is through high-temperature electrolysis (HTE). In contrast with low-temperature electrolysis, HTE of water converts more of the initial heat energy into chemical energy (hydrogen), potentially doubling efficiency to about 50%. Because some of the energy in HTE is supplied in the form of heat, less of the energy must be converted twice (from heat to electricity, and then to chemical form), and so the process is more efficient.
HTE processes are generally only considered in combination with a nuclear heat source, because the other non-chemical form of high-temperature heat (concentrating solar thermal) is not consistent enough to bring down the capital costs of the HTE equipment. Research into HTE and high-temperature nuclear reactors may eventually lead to a hydrogen supply that is cost-competitive with natural gas steam reforming. HTE has been demonstrated in a laboratory, but not at a commercial scale.

Bottom line is that we are new to the water splitting once it is achieved it may take 5 years or more, the technology will boost all sectors like automotive and energy sector.

Warm Regards - BSW Technical Services Pvt. Ltd.

02/01/2018

Happy New Year to All
Hopefully 2018 will bring lot of prosperity to Business community - Warm Regards from BSW Technical Services Pvt. Ltd.

18/10/2017

03/05/2017

Hello Guys
Greetings of the Day!

It gives me immense pleasure to inform you that BSW Technical Services Pvt. Ltd. has crossed 2 Cr for the FY 2016-17, this was possible with your unconditional support and repeated orders and believe same in the coming year too. BSW’s punch line is “Ensuring our best of Services with Time Line”

Thanking You and wishing you all the happiness

With Respect and Love

Sunil Wakhloo

01/10/2014

Calibration of Measuring Instruments

Calibration is a comparison between measurements – one of known magnitude or correctness made or set with one device and another measurement made in as similar a way as possible with a second device. The device with the known or assigned correctness is called the standard. The second device is the unit under test, test instrument, or any of several other names for the device being calibrated.

Basic Calibration Process

The calibration process begins with the design of the measuring instrument that needs to be calibrated. The design has to be able to "hold a calibration" through its calibration interval. In other words, the design has to be capable of measurements that are "within engineering tolerance" when used within the stated environmental conditions over some reasonable period of time. Having a design with these characteristics increases the likelihood of the actual measuring instruments performing as expected.

The exact mechanism for assigning tolerance values varies by industry type. The measuring equipment manufacturer generally assigns the measurement tolerance, suggests a calibration interval and specifies the environmental range of use and storage. The using organization generally assigns the actual calibration interval, which is dependent on this specific measuring equipment's likely usage level. A very common interval in India for 8–12 hours of use 6 days per week is twelve months. That same instrument in 24/7 usage would generally get a shorter interval. The assignment of calibration intervals can be a formal process based on the results of previous calibrations.

Sunil Wakhloo
For BSW Technical Services Pvt. Ltd.

19/08/2014

IIIIII BSW Quote for the Day IIIIII
"To laugh often and love much;
to win the respect of intelligent people
and the affection of children;
to earn the approbation of honest critics
and endure the betrayal of false friends;
to appreciate beauty;
to find the best in others;
to leave the world a bit better
whether by a healthy child, a garden patch,
or a redeemed social condition;
to know even one life has breathed easier
because you have lived.
This is to have succeeded.".

Warm Regards
BSW Team

06/05/2014

Docket No. BSW/Process/Roof Leakage/001
Date of Issue: 01.01.2014

Plan for Roof Leakage Detection and Rectification

BSW process for Roof Leakage detection and Rectification

[A] Diagnostic Roof Surveys

Evidence of water pe*******on can be all too easy to observe; stains on the ceiling for example. However, discovering the source of the leaks can be more problematic. Water can travel quite lengthy distances along framing members before finding an entry point into the spaces below. Roof cladding, flashing condition, roof linings and insulation may hinder detection. The best approach is to examine

1. The roof from underneath, in the roof space, preferably on a very rainy day. You will probably be able to discover any water leaks and trace them back to their source. If it isn’t raining, you can sometimes locate the origin of a roof leak by examining the roof framing timbers.

2. White powdery trails of mineral salt deposits can sometimes be left behind after water evaporates from the timbers.

3. Holes or rust decay in metal roofs will show up brightly if you are in the roof space during the day.

4. Inspection of all corner cladding around the roof or spraying water with force from top and parallel inspection from bottom of the roof and marking the lead with black permanent marker that is identification and traceability of the leakage.

5. The use of Leak detector test is also used for the same purpose but most of the places it does not work due to obstruction.

BSW Action Plan:
BSW in-house team or Technical team will carry out the above checks and make a complete data of the same:
1. Location (e.g. Shop / Column No. / Section No / with exact location.

2. The team will carry out marking of the leakage area with permanent marker.

3. In case the leak is very minor & within the reach in nature it can be arrested on the spot.

4. The complete list of leakage (major in nature) to be prepared and quotation for the same will be handed over to the Purchase Department.

[B] Rectification of Leakage

1. The leak rectification Technician has to complete all Safety formalities as per Client Standards, like permission for working at height, and BSW Safety Officer / Operation In-Charge should ensure all safety PPE are used during the rectification of the leakage. (Body Harness two point contact, Safety rope, Helmet, Traffic vast, Goggles, Hand gloves & Safety Shoe. Safety Officer should ensure Safety Supervisor is available at the work place during the rectification of leakage.

2. Arrest the leakage by using Silicone sealant.

3. The leakage near the overlapping sheets can be arrested by removal of the leakage sheet and application of Silicon Sealant.

4. In case the leak is not pinpointed at exact location then the whole area is arrested by using Silicon Sealant that is the overlapping area, all side framing member.

5. Leak testing after arrest of leak to be conducted with water spray and inspection from bottom side of the roof to be conducted after 15 days of curing from the leak arrest carried out.

6. The’ J’ bolt holding the sheet shall have two washers (Asphalt) one on top and one at the bottom. Due to ageing this would have worn out. Try to change the washers.

7. The sheets are likely to develop hair line cracks on the top surface due to climatic condition. This can be prevented by spreading asphalt sheet available for this purpose. This can be stuck on to the sheet that has cracks

Note: Please do contact us in case your concern requires more clarity on above subject or you need such service.

06/03/2014

Dear Friends

Please understand what is pH (potential of hydrogen)

In chemistry, pH is a measure of the acidity or basicity of a solution. It approximates but is not equal to p[H], the negative logarithm (base 10) of the molar concentration of dissolved hydronium ions (H3O+); a low pH indicates a high concentration of hydronium ions, while a high pH indicates a low concentration. Crudely, this negative of the logarithm matches the number of places behind the decimal point, so for example 0.1 molar hydrochloric acid should be near pH 1 and 0.0001 molar HCl should be near pH 4 (the base 10 logarithms of 0.1 and 0.0001 being -1, and -4, respectively). Pure water is neutral, and can be considered either a very weak acid or a very weak base (center of the 0 to 14 pH scale), giving it a pH of 7 (at 25 °C (77 °F)), or 0.0000001 M H+ For an aqueous solution to have a higher pH, a base must be dissolved in it, which binds away many of these rare hydrogen ions. Hydrogen ions in water can be written simply as H+ or as hydronium (H3O+) or higher species (e.g. H9O4+) to account for solvation, but all describe the same entity.

Applications "Some typical pH values"

Acidic pH (Violet / Pinkish Color Code)
13 Bleach
12 Soapy Water
11 Ammonia Solution
10 Milk of Magnesia
09 Baking Soda
08 Sea Water
Neutral pH (Yellow Color Code)
07 Distilled Water
06 Urine
05 Black Coffee
04 Tomato Juice
03 Orange Juice
02 Lemon Juice
01 Gastric Acid
Alkaline pH (Reddish Color Code)
Note: The Acidic / Alkaline can be seen instantly on universal indicator paper

Pure (neutral) water has a pH around 7 at 25 °C (77 °F); this value varies with temperature. When an acid is dissolved in water the pH will be less than 7 (if at 25 °C (77 °F)) and when a base, or alkali is dissolved in water the pH will be greater than 7 (if at 25 °C (77 °F)). A solution of a strong acid, such as hydrochloric acid, at concentration 1 mol dm−3 has a pH of 0. A solution of a strong alkali, such as sodium hydroxide, at concentration 1 mol dm−3 has a pH of 14. Thus, measured pH values will mostly lie in the range 0 to 14. Since pH is a logarithmic scale a difference of one pH unit is equivalent to a ten-fold difference in hydrogen ion concentration.

Choose your shampoo, bathing soap as per pH value the best consumable substance is 7 (+/-) 0.5

Rest is next

Warm Regards From

BSW Technical Services Pvt. Ltd.

04/03/2014

Dear All

Today is National Safety Day

Some knowledge about Electrical safety

Electricity is the most commonly used item in our daily use. When we are making extensive use of electricity, a serious thought is also required to be given to the dangers involved in its use.

Out of 15 to 20 accidents in factories, one turn out to be fatal
More & more new areas are added everyday.
Chances of accident is more as compared to other agency due to extensive usage.

Electric shock
Electric fire & explosion
Electric flash
Electric burns

Person falling from height
Dropping of tools & objects
Health hazards due to release of toxic gas & production of UV rays
Psychological effects
Emotionally anxious
Distracted
More prone to accidents

It is sudden & accidental stimulation of the body’s nervous system by electric current. It is the result of passage of electric current through the human body

It occurs : When a person comes in contact with :

Both wires of electric supply.
One wire of an energized circuit & ground.
Accidentally energized metallic part while standing on ground.
Severity of Electrical Shock

Amount of current flow.
Path of current flow.
Period of current flow
Nature of current
Frequency
Resistance offered by body to flow of current.
Duration of flow

Effect of Current in Human Body
Current Effect on Body
1 to 8 mA Not Painful
8 to 15 mA Painful Shock
15 to 20 mA Painful shock, muscular control lost
20 to 50 mA Breathing difficulties
50 to 100 mA Leads to death
200 mA & move Severe burns, clamp down of heart, leads to death.

Body Resistance

Body Area Resistance (ohms)
Dry skin 1,00,000 to 6,00,000
Wet skin 1000
Internal body 400 to 600
Hand foot 400 to 600

Protection from Static Charge
1. Bonding and earthing of Equipment/ pipeline
2. Low velocity of fluid
3. Use of Antistatic material
4. Wearing of Antistatic shoes
5. Use of static discharge plate at Plant entrance
6. Earth Monitor to ensure proper earthing of Static charge in Tankers.

Thanks

Please feel free to contact undersigned for more details in form of presentation [email protected] / [email protected] / [email protected]

Have a accident free year ahead

01/03/2014

THE INDIAN ELECTRICITY RULES

RULE: 3

To operate and maintain a HT installation of consumer an authorized person with adequate qualification and with a supervisor’s competency license should be appointed. He will be responsible for the operation and maintenance of the installation. He will have technicians with ITI and B - License to assist he in executing the job.

RULE: 45

Any addition, alteration jobs of the electrical installation can be carried out by a licensed electrical Contractor with a valid license.

For a HT System the contractor should have an EA or ESA
For a LT System should have EB License is required.

RULE: 46

For testing the healthiness of the electrical installation the Electrical Inspector will do the Inspection of the Installation once in 5 Years or any time frame stipulated by the Government.

RULE: 63

For carrying any addition, alteration work in the existing electrical installation there are certain procedure to be followed.

• Preparation of Drawings
• Drawing Approvals
• Er****on
• Completion Reports
• Inspection
• Defects Reports
• Rectification of defects
• Safety certificate

25/02/2014

EARTHING

Earthing means the direct connection of all the metal and non-current carrying parts of electrical equipments such as metallic frame work, electrical motor body, metallic covering of cables, earth terminal of socket outlet, transformer, poles, tower etc., to a earth plate. The earth plate is buried in the ground, which has a good electrical connection to the surrounding earth. The earth’s potential is always taken as zero for all practical purposes. The earth pit should be deep enough so that the soil has sufficient and reasonable chances of remaining moist at all times at all seasons.

Classification of Earthing

1. System Earthing
2. Equipment Earthing

1. System Earthing

This otherwise known as Neutral Earthing. This is the electrical connection of star point of a transformer 3-phase supply system with ground.

2. Equipment Earthing

This is connecting all non-current carrying metallic parts of an equipment/machines to earth.

1. System Earthing

Neutral Earthing in transformer
Advantages of Neutral Earthing:

Arcing grounds are reduced or eliminated. The current flowing through the neutral to ground connections is made almost equal and opposite to the capacitive current from healthy lines to ground.
The voltages of health lines with respect to earth remain at harmless value. They do not increase to time normal value as in the case of grounded system.
The life of insulation is long due to prevention of voltage surges or sustained over voltages. Thereby reduced maintenance, repairs, and breakdowns. Improved continuity.
Stable neutral point.
The earth fault relaying is relatively simple. Useful amount of earth fault current is available to operate earth fault relay.
The over-voltages due to lightning are discharged to earth.
By employing resistance or reactance in earth-connection, the earth fault current can be controlled.
Greater safety to personnel and equipment due to operation of fuses or relays on earth fault and limitation of voltages.
Life of equipment's, machines, installation is improved due to limitation of voltage. Hence overall economy.

Types of Neutral Earthing

Solid Earthing or Effective Earthing:.
Resistance Earthing.
Reactance Earthing
Voltage Transformer Earthing

3. Equipment Earthing

The direct connection of all the metal and non-current carrying parts of electrical equipment's to a earth plate.

Purpose of Earthing

1. To avoid electric shock to human body.
2. To avoid risk of the fire due to earth leakage current through unwanted path.
3. To avoid damage to the equipment.
4. To avoid earth leakage accident through damp situation.

Precautions

1. There should not be any possibility of earthing being damaged or cut accidentally.
2. The earth conductor should be fixed to the equipment with the help of clamps, shackles, saddles, ni***es etc.,
3. The points should be made by soldering or welding.
4. The point enamel corrosion and other non-conducting materials should be removed from the surface of the equipment's.
5. The earth pit should have moisture in it

Types of Earthing

1. Earthing through a water main.
Pipe earthing.
Plate earthing.

Earth Electrode

Earth electrode is a metal plate, pipe rod or other conductor, which makes an effective electrical connection with the general mass of earth.

For small installations such as residential buildings, one electrode is sufficient in addition to the earth connection through the serial line or underground service connection.

For larger installations such as Substations etc., several earth electrodes may have to be provided at intervals of 5 or 10 feet and connected together in parallel. Further nests of earth electrodes are also provided at intervals of 40 or 50 feet.

Factors, which determine the Earth Resistance Value

The Earth Resistance Value depends on the following factors:

1. Condition of the soil.
2. Moisture content of the soil.
3. Temperature of the soil.
4. Depth at which the electrode is embedded.
5. Size and spacing of earth plates.
6. Metal of earth plate and earth wire.

Max. Permissible Resistance of Earth System.

The following are representative values of the combined overall resistance of the earth system.

Larger Power Station 0.5 Ohms
Major Substation 1.0 Ohms
Small Substation 2.0 Ohms
In all other cases 5.0 Ohms

EARTH MAT

The earth mat is a mesh of steel pipes or rods laid at a depth of 0.5 m in the entire sub-station area (excluding foundations). The earthing rods are connected to the earth mat.

INSPECTION OF EARTHING ARRANGEMENT

The following have to be checked while inspecting the earthing arrangement.
1. Earth resistance should be within the permissible limit.
2. Earth conductors should be as heavy a section as possible (soldered together solidly after bonding and bolted).
3. Power equipment's should have two separate and distant connections with the earth.
4. Earth connections should be parallel.
5. For Lightning arrestor's of building an earth grid has to be formed on the top surface and the spike provided. The earth grid formed should be connected to two different earth pits. This spike will cover areas at 45 Degrees from the top most point of the spike.