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Monday, September 23, 2013

Pumps in Parallel, Pumps in Series Connection

Two Pumps Connected in Parallel


- purpose: to pump fluid in higher capacities, higher volume, higher amount

- head is constant (total dynamic head is the same, uniform)

- higher discharge volumes

- increase in total pumping capacity

- add flowrates of pumps


Total Flow = Flowrate of Pump1 + Flowrate of Pump2

Q = q1 + q2


Two Pumps Connected in Series


- purpose: to pump fluid in higher elevation, higher height, higher level

- fluid flowrate is constant (the same, uniform)

- higher discharge heights

- increase in total dynamic head

- add heads of pumps 


Total Dynamic Head = Head of Pump1 + Head of Pump2

TDH = H1 + H2

Wednesday, July 17, 2013

Air Conditioning Heat Load Calculation (Room & Building estimate)


The calculation estimate formulas used here are just rough approximations to simplify the total heat load calculations and quickly select an air conditioning unit capable of providing the necessary cooling of the room or space.


--------------------- QUICK HEAT LOAD CALCULATION ESTIMATE -------------------

Typical Room or Small Office:


Space Heat Load = Cooling Space Dimensions x 4

Space Heat Load = Room Length (ft) x Room Width (ft) x Room Height (ft) x 4

Space Heat Load = L x W x H x 4


Occupant Load = 600 BTU/person


Total Heat Load = Space Heat Load + Occupant Load




------------------- DETAILED HEAT LOAD CALCULATION ESTIMATE ------------------
     
1 Btu (British thermal unit)
1 Btu = energy required to cool or heat 1 pound of water by 1 degree Fahrenheit

Heat Load of People
Heat generated per person = 600 Btu

Units:

1 Btu = 0.3 watt hours
1 Btu = 250 calories
1 Btu = 0.25 kilocalories

1 watt-hour = 3.4 BTU

1 TON of cooling = 12,000 BTU/hour

1 TON of refrigeration = 12000 Btu/hr
1 TON of refrigeration = 200 Btu/min
1 TON of refrigeration = 3.5 KJ/s
1 TON of refrigeration = 3.5 KW  



Total Heat Load:

The total heat load of a room/building is a function of:
1. Size of space to be cooled
2. Area of windows
3. Number of occupants
4. Equipment heat load
5. Lighting heat load

Total Heat Load
= Space Btu + Window Btu + Occupant Btu + Equipment Btu + Lighting Btu

 

   
Example:
Calculate the Total Heat Load and select an Air Conditioning Unit.

Room dimensions:
Length, L = 15 ft
Width, W = 10 ft
Height, H = 8 ft (2.5 m height from floor to ceiling)

Window dimensions:
L = 4 ft
W = 4 ft

Occupants:
2 persons

Equipment wattage:
TV = 100 watts
Radio = 50 watts
Laptop = 60 watts

Lighting Load:
60 watts light bulb


Air-conditioning Heat Load Estimation Formulas:


Total Heat Load
= Space Btu + Window Btu + Occupant Btu + Equipment Btu + Lighting Btu

Space Btu = Room Length (ft) x Room Width (ft) x 32

Window Btu = Total Window Area (sq. ft) x 80

Occupant Btu = Number of Occupants x 600

Equipment Btu = Total Equipment Wattage x 3.4

Lighting Btu = Total Lighting Wattage x 4.3


Total Heat Load Calculation:


Space Btu:
Space Btu = Room Length (ft) x Room Width (ft) x 32
Space Btu = L x W x 32
Space Btu = 15 x 10 x 32
Space Btu = 4800 Btu

Window Btu:
Window Btu = Total Window Area (sq. ft) x 80
Window Btu = Window Length (ft) x Window Width (ft) x 80
Window Btu = L x W x 80
Window Btu = 4 x 4 x 80
Window Btu = 1280 Btu

Occupant Btu:
Occupant Btu = Number of Occupants x 600
Occupant Btu = 2 persons x 600
Occupant Btu = 2 x 600
Occupant Btu = 1200 Btu

Equipment Btu:
Equipment Btu = Total Equipment Wattage x 3.4
Equipment Btu = (TV watts + Radio watts + Laptop watts) x 3.4
Equipment Btu = (100 watts + 50 watts + 60 watts) x 3.4
Equipment Btu = (100 + 50 + 60)  x 3.4
Equipment Btu = 714 Btu

Lighting Btu:
Lighting Btu = Total Lighting Wattage x 4.3
Lighting Btu = 60 watts x 4.3
Lighting Btu = 60 x 4.3
Lighting Btu = 258 Btu


Total Heat Load
= Space Btu + Window Btu + Occupant Btu + Equipment Btu + Lighting Btu
= 4800 + 1280 + 1200 + 714 + 258
= 8252 Btu

Select 8000 Btu to 10,000 Btu Air Conditioning Unit


Commercial Air Conditioner Unit Selection & Prices (July 2013):

5000 Btu Room Air Conditioner

150 sq. ft. bedroom (15 ft x 10 ft) or 15 sq. meter (5 m x 3 m)
Price: $100


8000 Btu Room Air Conditioner

300 sq. ft. master bedroom (20 ft x 15 ft) or 35 sq. meter (7 m x 5 m)
Price: $200


10,000 Btu Room Air Conditioner

450 sq. ft. living room (30 ft x 15 ft) or 50 sq. meter (10 m x 5 m)
Price: $400


See also:
1. Basics of Refrigeration and Air Conditioning
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#RX#

Sunday, July 14, 2013

Why motors have large starting current

Reasons why motors have big starting current or inrush current:

- running motors produce back emf (electromotive force) in their coils

- back emf is caused by magnetic field which resists current (flow of electrons) through the armature winding

- back emf functions like a resistor which prevents current flow

- no back emf exists when motor is not running

- no back emf when motor is at rest

- at start up, resistance is zero (which is a short circuit condition), therefore current is large because no resistance to flow of current

- when a motor is running, the armature windings produce a resisting voltage (pressure) which opposes current flow as long as it is running

- a motor at rest acts like a transformer having secondary winding short circuited because the rotor windings in a squirrel cage induction motor is short circuited (closed circuit)

- starting currents (in-rush currents) for induction motors generally are 8 to 10 times the rated full load current

- a motor at rest has large inertia, therefore larger current is required to start it (this is similar to pushing a cart from stationary position, it's harder to push at the beginning, you need to exert a larger force and power, but as soon as the wheels start rolling, it is easier to push the car once it is moving)

Wednesday, June 12, 2013

What is air locking in pumps


Air Locking
  
- An air lock is trapped air or dissolved gases inside the pump impeller.
- This air or gas is compressed and becomes high pressure as the pump runs.


Causes of Air Lock:


- Leaks in the suction side
- Switch failure
- Entrained air mixed (dissolved) in the liquid


Dangers of air lock:


- overheating
- pump inability to start
- reduced flow of liquid
- pump unable to move fluid


How to prevent air lock in pumps:


- air relief valves
- repair leaks
- replace worn gaskets and seals
- operate within allowable limits

Sunday, March 10, 2013

How does an airplane, boat and ship propeller work?


Spinning of a Twisted Airfoil-Shaped Blade

Blade sections near the center have Lower Speed

Blade sections near the Tip have Higher Speed

Movement of Blade Draws Fluid (Air, Water, Liquid, Gas)

Speed is Inversely Proportional to Pressure (Bernoulli's principle)

Fluid near blade center have Lower Speed but Higher Pressure

Fluid near blade tip have Higher Speed but Lower Pressure
  

Drawing of Airfoil (Aerofoil) shape of Propeller Blade. 

  

Fluid flows from Higher Pressure to Lower Pressure

Every action has an equal and opposite reaction (Newton’s Third Law of Motion)

Propeller exerts force to the Water --> Water pushes the Ship, Boat forward

Propeller exerts force to the Air ------> Air pushes the Airplane, Aircraft forward

Pressure Differential creates Forward Force called Thrust --> Ship, Boat, Airplane

Pressure Differential produces Upward Force called Lift ----> Airplane, Aircraft


BLOG POSTS:
http://mechanical-marine-systems-engineering.blogspot.ca/

ALPHABETICAL LISTING OF ALL MY BLOGS:
http://miscellaneous-topics.blogspot.ca/2012/12/alphabetical-listing-of-all-my-blogs.html

Saturday, December 15, 2012

Ship Disposal and Environmental Impacts


RESPONSIBLE SHIP DISPOSAL

After a ship has reached the end of its effective life, responsible disposal should immediately commence in accordance with the proper regulations and guidelines  set out by international environmental authorities such as the Basel Convention, United Nations Environmental Program (UNEP), and the IMO or International Marine Organization. Priority should be given to ships posing the greatest environmental risk and having the worst conditions. Ship Breaking and Green Ship Recycling is the best ship disposal method and the most environmentally friendly ship disposal option. This would be discussed in a separate article.

ILLEGAL SHIP DISPOSAL (examples)

These ships contained radioactive materials and toxic substances such as asbestos, PCB (polychlorinated biphenyl), lead, mercury, and other toxic chemicals. They have failed to follow the Basel Convention that hazardous wastes should be removed in accordance to environmentally sound procedures before scrapping, recycling, or disposal.
1. Clemenceau (Aircraft Carrier) - France
2. SS Norway (Passenger Ship) - Norway
3. SS Oceanic (Ocean Liner) - USA

METHODS OF SHIP DISPOSAL

1. Ship Breaking and Recycling
2. Ship Museum
3. Floating Drydock storage
4. Hulking - floating without  riggings and equipment
5. Artificial reef - sinking  ship for marine life, diving sites
6. SINKEX - Sinking Exercise, Navy live fire target program
7. Ship Donation
8. Sale

SHIP DISPOSAL METHODS & IMPACTS TO THE ENVIRONMENT:


Hulking

- Exposure of birds, marine life, and wildlife to harmful and toxic chemicals from aging ships
- Empty ships taking space
- Rotting, rusting ships contribute to water pollution
- Essentially a floating garbage, ship graveyard or cemetery

Floating Dry Dock

- Storm-water runoff contamination with dissolved metal particles
- Blasting using high pressure pumps to wash down salt, slime, biofouling, and paint produces wastewater containing harmful sediments
- Cleaning agents contain lead, anti-fouling, and persistent organic pollutants (POP)
- Submerged FDD can deter the passage of fish

Ship Museum

- Deterioration from outdoor weather conditions
- Wastewater from operations
- Use of environmentally unfriendly cleaning chemicals 

Artificial Reef

- Poor growth and survivability of branching corals
- Reefs attract certain sea creatures, but don't necessarily cause an increase in living matter
- Creates habitat for certain species but would harm the natural ecology
- Artificial reefs made of old ships consist of metal junk which replaces existing natural habitats for species
- Sinking ships alter natural habitats and the desired enhancement is not realized
- Decreases fish stocks by promoting concentrations of fish, which makes them easier to catch, thereby overfishing
- Successful artificial reefs have specific geometry that is designed for the purpose and must be located at the correct underwater location

Sink Exercise (SINKEX, Navy's live ship targeting program)

- Toxic wastes from the sunk ship and explosions pollute the oceans
- Adverse effect on the foodchain and sea foods that people eat
- Contaminated marine life showed high levels of toxicity and then decreased the numbers of species
- Opposes federal marine conservation efforts
- Media, environmentalists, and other groups consider SINKEX as federally irresponsible

Ship Breaking and Recycling

- Best ship disposal method and the most environmentally sound ship disposal option
- 99% of the material is recyclable and reusable
- Savings on production or import of iron, steel, and other metals for shipbuilding
- Supplies raw materials to steel mills, steel manufacturing plants and other businesses
- Generates jobs and revenue
- Shipbreaking is the only environmentally friendly option that uses "Green Ship Recycling" that properly remove and correctly process hazardous wastes at approved facilities
- Certified and approved Green Ship Recycling facilities require shipbreaking operations in compliance with relevant legislation and treaties such as the Basel Convention, The International Convention for the Prevention of Marine Pollution from Ships (MARPOL), United Nations Convention on the Law of the Seas ( UNCLOS), International Maritime Organization (IMO), United Nations Environmental Program (UNEP), The International Chamber of Shipping (ICS), The Rotterdam Convention on the Prior Informed Consent (PIC) Procedure for Certain Hazardous Chemicals and Pesticides in International Trade, and the Stockholm Convention on Persistent Organic Pollutants (POPs)

Friday, December 14, 2012

Green Ship Recycling Standards


BASEL CONVENTION --- http://www.basel.int/
The Basel Convention is a United Nations (UN) treaty that is aimed at the reduction of hazardous waste, promotion of environmentally sound management of hazardous wastes, and prevention of hazardous wastes illegal transfer from one state to another. The Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and Their Disposal was adopted in Basel, Switzerland in March 1989. The Convention came into force on May 1992. There are currently 51 Signatories and 175 Parties. The United Nations Environmental Program (UNEP) is responsible for the implementation of the Basel Convention. The International Maritime Organization (IMO) and the International Labour Organization (ILO) are international organizations that are deeply engaged in addressing the issue of ship recycling.

What is Basel Convention's main purpose?
The primary purpose of the Basel Convention is to stop or ban industrialized countries from dumping toxic wastes into developing countries.

What are the Basel Convention's aims and objectives:
Click here to view complete list of aims and objectives
http://www.basel.int/TheConvention/Overview/tabid/1271/Default.aspx

Coverage of Basel Convention:
The Basel Convention covers hazardous wastes that are explosive, flammable, poisonous, infectious, corrosive, toxic, or ecotoxic.

Refusal of Export to the Ship Breaking Country:
- All parties are required to provide information about a proposed trans-boundary movement of hazardous wastes to the destination countries .
- An exporting country must refuse the export of a ship having hazardous materials if the destination country for ship breaking operations can not manage the hazardous wastes in an environmentally sound manner.

Which countries are the primary ship breaking destinations?
Ship breaking operations are done primarily in Bangladesh, India, China, Turkey and Pakistan. Why these countries? Primarily because of cheap labour markets and soft/problematic enforcement of environmental protection standards.

Which countries export ships for shipbreaking?
Industrialized European and Western countries.

What are the reasons why Basel Convention is violated?
GRIM reasons.
MONEY - rich countries sell their old garbage ships and don't want to spend money to process obsolete, decommissioned, end-of-life ships. IRRESPONSIBILITY - irresponsibility and neglect for human welfare and environmental protection. RECKLESSNESS - they (violators) just don't care! (except only caring about themselves). GREED - greed for more money, greed for more profit....yeah, don't reason out --- you know you are doing the wrong thing!
If you arrange all the first letters: M, I, R, G ---> it is GRIM spelled backwards............GRIM reasons.

Major negative effects of Basel Convention violations:
- Environmental pollution, Operational accidents, Disease

Primary Responsibility Before Exporting Ships for Shipbreaking:
Pre-cleaning of hazardous wastes is the financial and legal responsibility of the ship owner before exporting ships to Bangladesh, India, China, Turkey, Pakistan, and other developing countries.

Primary NGO Supporter of Basel Convention --- http://www.ban.org/
The Basel Action Network (BAN) is a Seattle-based charitable non-governmental organization (NGO) whose mission is to prevent the globalization of the toxic chemical crisis. BAN is the guardian, defender, and promoter of the Basel Convention and its decisions. BAN opposes the export of toxic wastes, toxic products, and toxic technologies from rich to poorer countries. BAN prevents the rich countries from turning the poorer countries into a dumping ground.

BAN is recognised by the United Nations Environment Program (UNEP) as the leading organization dedicated exclusively to issues regarding trade of toxic substances. BAN is regularly invited as NGO experts and stakeholders in internal meetings and policy deliberations. BAN also worked closely with the Organization of Economic Cooperation and Development (OECD) and other United Nations (UN) mandated environmental protection programs.

BAN advocates Green Shipbreaking. BAN ensures that all hazardous materials from US ships and vessels are properly removed before exporting or domestic processing.

Click here to visit the BAN website:
http://www.ban.org/

The Green Ship Recycling Standard
The purpose of the Green Ship Recycling (GSR) Standard is to establish an environmentally sound management and methodology in shipbreaking and recycling of ships. The main objective of the standard is preventing damage to human health and the environment. The Green Ship Recycling Standard is created by the NGO Platform on Shipbreaking. BAN, Greenpeace, and other non-governmental organizations (NGOs) formed the NGO Platform on Shipbreaking. The primary focus of the platform is the responsible ship breaking and disposal of ships. Upholding the letter and spirit of the Basel Convention and the Basel Ban Amendment, the NGO Platform's main purpose is to stop the developed (first world) countries from the unlawful dumping of toxic wastes to underdeveloped third world countries. The NGO platform endorses the principles outlined in the Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal.


REQUIREMENTS & PROCEDURE PRIOR TO DISMANTLING/RECYCLING

Floating or Land-Based Re-use of Ships:
- Green Ship Recycling Facilities (GSRF) should favor re-use of ships over recycling
- GSRF shall promote and assist in the preparation of ships for historic preservation, retrofitting, restoration, refurbishing and repair of ships that have a viable and safe proposition for extended life as a structural ship.
- Alternative uses can include further life as a ship, housing, offices, hotels, museums, conference centers, etc
- Alternative uses are favorable as long as hazardous materials are sealed and made safe from release.

Ocean Dumping/Placement:
Green Ship Recycling Facilities shall not support or be involved in:
- preparing or selling ships and other similar structures for use as artificial reefs
- utilizing ships as artificial reefs
- dumping ships at sea or placing it in the marine environment
- other forms of aquatic dumping or sinking in aquatic environments
- scuttling a ship (deliberately sinking a ship by allowing water to flow into the hull)
- sinking ships as targets for military exercises

Legal Requirements, International & National Waste Trade Law:
- A Green Ship Recycling Facility will operate and ensure all business practices are fully consistent and in compliance with national and international waste trade laws.
- A Green Ship Recycling Facility will operate in a manner which will not require other facilities, persons, or other entities to violate any national or international laws.
- A Green Ship Recycling Facility shall abide and comply with the following list of legal instruments:
List of Relevant International and National Waste Trade Agreements:
• Basel Convention
• European Waste Shipment Regulation
• Organization for Economic Cooperation and Development (OECD) Recycling Agreement
• Waigani Treaty
• Izmir Protocol
• Bamako Convention
• Acuerdo Regional sobre Movimiento Transfronterizo de Desechos Peligrosos -- Centroamerica
• Basel Ban Amendment (Decision III/1 of the Basel Convention)
• The Asbestos Regulations (as amended) 1999 (United Kingdom)
• Toxic Substances Control Act (for PCBs import and export) (USA)

International Labor Law:
- GSRF must operate in accordance with International Labour Organization (ILO) Conventions and Recommendations and all applicable international labor laws and guidelines. 

Licensed and Permitted:
- A Green Ship Recycling Facility must have valid applicable licenses and permits for operations including hazardous waste management- Only fully licensed and permitted downstream waste management facilities are allowed.

Waste oils, fuel and sewage:
- Prior to any recycling operations: all waste oils, oily liquids, fuels, and sewage must be completely removed from the ship & managed in accordance with the regulations and guidelines set by the International Convention for the Prevention of Pollution from Ships (MARPOL) 

Downstream Environmentally Sound Management of Wastes/Materials:
- All Green Ship Recycling Facilites must have access and use of national downstream disposal facilities that can handle, manage, and dispose all hazardous wastes on board vessels including asbestos, toxic metal paints, residual fuels and oils.
- Materials and wastes containing PCBs and other persistent organic pollutants (POPs) in concentrations above 50 ppm must not be landfilled or otherwise disposed of

Environmental and Health Monitoring:
- Workers in GSR workplaces should be monitored at least once a year. This should include blood and hair sampling.
- Workplace environmental monitoring should be conducted at least once a year. This must include soil sampling, air sampling, and dust sampling for heavy metals, asbestos, and PCBs.

Community Support:
- A wide community support including from local fishermen, residents, and businesses should be obtained before the establishment of a new Green Ship Recycling Facility.

Environmental Management System (EMS):
- Green Ship Recycling Facilities will implement, maintain, and document an ISO (International Organization for Standardization) or similarly certified Environmental Management System

Fire Fighting Equipment:
- GSRF must have fire fighting equipment and capability to extinguish all types of fires inside and outside the ships and surrounding premises.

Occupational Safety and Health Responsibility:
- Occupational safety and health (OSH) is the responsibility and duty of the GSRF employer
- Owners of GSRF must periodically assess and identify risks and hazards to health and safety
- Preventive and Protective Measures should be implemented in conformity with ILO guidelines on shipbreaking and other relevant international conventions, regulations, recommendations, and codes of practice.

Personal Protective Equipment:
- Green Ship Recycling Facility owners must freely provide appropriate gloves, boots, coveralls, uniforms, googles, respirators, face shields, hardhats, and other personal protective equipment (PPE) to employees
- Proper use of PPE shall be enforced in accordance with ILO guidelines and OSH standards.

Onsite/Offsite Medical and Emergency Facilities:
- GSR Facilities must possess emergency eye-wash stations, emergency shower stations, and first aid supply & equipment
- During all operations, persons trained in First Aid Procedures must be present at all times
- Hospitals with rapid means of transport and capable of severe injury treatment must be located within 15 kilometers of a GSRF.
- Emergency response vehicles must be able to approach within 25 meters of at least one side of a ship without delay

Green Passport and Ship Recycling Plan:
- Before the Green Recycling Process initiates, two key documents are essential so that the Pre-Cleaning process can be planned and executed prior to the arrival of the ship at the recycling facility.

(a) Ship's Green Passport
- A ship's green passport is the vessel's document that contains the inventory of hazardous materials onboard.
- A Green Passport stays with the ship throughout its lifespan
- The Hazardous Materials Inventory (green passport) is the responsibility of the ship owner

(b) Ship Recycling Plan
- A Ship Recycling Plan is a document prepared by the Ship Recycling Facility during the sale of the vessel

Transboundary Voyage to Annex VII Destinations:
When the final destination of ships containing Basel listed hazardous wastes is an Annex VII country (member of OECD, EU, Liechtenstein), a Green Ship Recycling Facility must perform the following prior to the final voyage of all ships:

1. Full Inventory:
• A full inventory of Basel listed hazardous wastes remaining on the ship must be accomplished
• Inventory of hazardous wastes/materials shall include at a minimum: mercury, Polychlorinated Biphenyls (PCBs), ChloroFluoroCarbons (CFCs), lead, cadmium, tributyl tin (TBT), halogens, solvents, asbestos, fuel, radioactive materials, and oils and oily mixtures.

2. Testing and Examination by Licensed Experts:
• All testing and examination must be accomplished by licensed experts in the field to ensure safety and credibility of results.

3. Notification and Consent:
• Article 6 of the Basel Convention describing full notification and consent between competent authorities must be successfully completed.

4. Adherence to Standards:
• Ensure that the receiving facility is a Green Ship Recycling Facility that adheres to the standards.

Transboundary Voyage to Non-Annex VII Destinations:
When the final destination of ships containing Basel listed hazardous wastes is a non-Annex VII country (not OECD/EU/Liechtenstein), the exporting Green Ship Recycling Facility must perform:

1. Pre-cleaning:
- Pre-cleaning of ships in accordance to the standards before sending it to the final disposal destination
- Pre-cleaning is to be carried out by removing all Basel listed hazardous wastes and ensuring safe towing of the ship its final destination.

2. Processing of Hazardous Substances:
- Hazardous substances such as residual fuels, asbestos, polychlorinated biphenyls (PCBs) or toxic metals should be processed according to Basel Technical Guidelines for the environmentally sound management of the full and partial dismantling of ships.

3. Repatriation of Hazardous Wastes:
- Hazardous Wastes that cannot be removed because of resulting unsafe towing must be repatriated to the exporting Annex VII country for final disposition in a government approved disposal or recycling facility.


REQUIREMENTS & PROCEDURE DURING RECYLING

Gas-Free Testing & Certificates:
- Prior to any cutting or dismantling operations onboard a vessel in the GSRF, a ship must be tested for flammability and a Gas-Free for Hot Works certificate must be granted.

Environmentally and Occupationally Sound Management and Responsibility:
- All Shipbreaking and Recycling operations must be conducted in accordance with the Basel Convention Technical Guidelines, ILO Safety and Health in Shipbreaking, IMO guidelines on Ship Recycling, and other relevant guidelines including all applicable local and national laws.
- Environmentally Sound Management of Hazardous Wastes involves Waste Recovery and Disposal Methods
- Waste Recovery methods involve Regeneration and Reclamation through processes such as Distillation, Thin-Film Evaporation, and Steam Stripping
- Disposal Methods involve processes such as Biological Treatment, Physico-Chemical Treatment, Deep Injection, Specially Engineered Landfill, and Incineration on Land

No Beaching Operations:
- No Green Ship Recycling operations shall take place on tidal beaches
- Tidal Beaches provide unstable and impractical platforms for mechanical lifting devices such as cranes
- Tidal Beaches does not offer good access to emergency response vehicles
- Leaks from oils, residues, and particulate matter falling on tidal beaches are not retrievable

Full Containment & Operational Platform with Drydocks or Graving Docks:
- GSRF operational platforms are required to have impermeable floors where hazardous materials and wastes are handled
- Drydocks or graving docks with impermeable, contrallable and fully contained floored area is required 
- Impermeable Floors provide full containment for loss of liquids or particulate matters (e.g. oils, paint chips, dust)
- Impermeable Floors allow recovery and management of incidental or accidental releases of residues or emissions
- Drydock or Graving dock floors must be washed everyday
- Before flooding, floors must be thoroughly cleaned
- Wastewater shall be managed as hazardous waste because of cleaning agents, particles, and residues
- No part of the ship can be considered as the necessary containment
- Cutting and recycling activities shall not take place directly over water, soil, or sand

Asbestos Remediation and Disposal:
- All forms of asbestos must be removed, isolated and managed as hazardous wastes in downstream disposal facilities in compliance to GSR guidelines (Annex II) and applicable ILO Conventions   
- Asbestos must be managed in accordance with all applicable national and local laws, regulations, and guidelines
- Asbestos in any form must never be reused or recycled
- Asbestos must be disposed of in a secure landfill designed for asbestos without possibility of airborne or other releases.

PCBs Removal and Destruction:
- PCBs in liquid form are found in transformers, capacitors, and fluorescent light ballasts
- PCBs in solid form are found in gaskets, electronic cables, electrical wires, insulation, pliable flooring materials, roofing materials, and in paints.
- PCBs in both solid and liquid forms having concentrations greater than 50 ppm should be treated and managed as hazardous wastes [ 1 mg/1,000,000 mg (solid) or 1 ml/1,000,000 ml (liquid) --> one part in one million = 1 ppm (part per million) ]
- PCBs should be removed and isolated under the conditions and in facilities as described in the Basel Convention and relevant guidelines in the Green Ship Recycling standards document.
- PCBs must never be reused or recycled 
- PCBs will be subject to destruction technologies that destroy the PCB molecule with a total Destruction Efficiency (DE) of 99.9999 percent.

Radioactive Devices:
- Smoke detectors, ionizing smoke alarms, and all other ship equipment containing radioactive materials must be removed, collected, and managed in a designated radioactive waste facility that complies with national and international regulations.

Mercury:
- Mercury is usually found in ship's equipment, instruments, and devices such as electronic switches, relays, binnacles, compasses, thermometers, barometers, and in fluorescent light bulbs
- Mercury should never be released to the environment
- All mercury should be managed as hazardous waste and processed in a facility capable of safely recycling it
- Mercury recycling facilities should have retorts capable of 99.99% recovery.

ChloroFluoroCarbons (CFCs) / Freon Remediation and Disposal:
- CFCs found in refrigerants, air-conditioning equipment, fire extinguishers, etc. must be properly identified, safely removed and isolated.
- CFCs should never be released to the atmosphere
- Disposal must be implemented through a licensed CFC collector
- Management and Remediation (removal of CFC from environmental media such as soil and water) should be in accordance with MARPOL and Montreal Protocol obligations and guidelines.

Harmful Paints and Plastics:
- Paints and plastics should be tested for halogens and toxic metal contents such as lead, cadmium, and tributyl tin (TBT)
- Paints and plastics with hazardous levels of toxic metals should be processed as hazardous wastes
- Materials containing halogens must be placed in a secure and designated landfill area
- Steel and other metals having paints, coatings, and plastics containing halogens or toxic substances must be sent to smelters with effective pollution control devices and equipment
- Smelters must operate in high temperatures to prevent the release of toxic metals, dioxins, and harmful hydrocarbons

Burning and Incineration:
- Except for dedicated incinerators, no ship material should be burned as they can cause or create harmful emissions
- Only dedicated hazardous wastes incinerators with a 99.9999% destruction efficiency is allowed

Thermal Cutting:
- Thermal cutting, or other thermal operations or devices must not create toxic fumes or smoke
- Thermal operations should not be done near or over all paints, plastics and other materials that causes toxic gases

Toxic or Health Impairing Dusts:
- Grinding, sand blasting, cutting, and other operations that create toxic dusts or unhealthy dusts should be avoided
- If such operations cannot be avoided, appropriate respirators, masks, and protective equipment must be worn to prevent inhalation and eye exposure

Transport of Hazardous Wastes:
- Hazardous wastes for transport should be properly labeled, and packaged in accordance to regulations to prevent spill or release.

Downstream Due Diligence:
- For all operations away from the GSRF, owners must satisfy legal and safety requirements
- Ensure that Safety Measures must be in place to prevent dangers, hazards, and risks
- Third party facilities and brokers must meet applicable standards, must have all the permits and licenses for all waste management operations