CUPOLA M3 HEAT SHIELD

CUPOLA M3 HEAT SHIELD

The primary objective of CUPOLA M3 HEAT SHIELD is to reduce the heat loss from digester at its highest possible level. 

The CUPOLA M3 HEAT SHIELD is composed by three layers of membrane working as a roof on the top of the digester:

  • The external double-sided PVC coated polyester fiber fabric membrane; it is inflated with air. 
  • The special insulated Heat Shield intermediate membrane, made by a triple layered ultra-shielded material to separate the inner biogas chamber from the air chamber.

The special layers of this membrane act as a protection against heat dissipation in the following way: 
1- A layer of aluminum reflects 96% of the radiating infrared heat
2- A layer of bubble polyethylene sheet reduces the heat loss trough convection
3- A layer of pure polyethylene sheet gives an high gas tightness to the air chamber thus protecting the inner gas membrane from oxidation. 
The inner double-sided PVC coated polyester fiber fabric membrane, with Eco-Safe layer.

The CUPOLA M3 HEAT SHIELD is pressurized by a reduced power air fan running 24/24h and is regulated by a special valve that force the air to enter in the air chamber just in case the pressure in the dome is decreasing. Thanks to this combined system, there is a limited exchange of air in the air chamber with a reduction of heat loss due to less flow of cold air. This effect can be reached only in a triple membrane gasholder, because there is no need for a constant air exchange for safety reason, as a result of physical barrier by the intermediate membrane between the two independent chambers (air and gas).
 
 
ADVANTAGE POINTS
  1. 1- REDUCING HEAT TRANSFER
    Diminution of heat dissipation: consequently, energy costs for digester warming purposes are drastically reduced. Return on investment are considerably speeded up because of major energy saving.
  2. 2- HIGH PASSIVE SAFETY AGAINST EXPLOSION DANGER 
    insulating membrane layer produces the complete separation between the air and the gas chamber. Any eventual gas leak cannot enter into the air chamber, and the formation of explosive mixture is prevented. 
  3. 3- REDUCED ELECTRIC CONSUMPTION 
    The “3-membrane” design, as a result of its self-functioning safety system, needs a reduced electrical power air fan. 
  4. 4- LONGER LIFETIME FOR THE GAS CHAMBER MEMBRANE 
    Since the gas membrane is completely covered by the intermediate one (opaque), we do achieve a protection from any ultraviolet light source and from explosion to direct oxidation by the air pumped by the blowers.

Certification

 


 

MAIN COMPONENTS

 


Special shape for balconies location

Ecomembrane is able to design and realize its own membranes in order to be adapted to any kind of balcony for human access box located on the perimeter of the digester and equipped with mixers and accessories for sewage or gas management.

SPECIAL SHAPE FOR BALCONIES LOCATION1

SPECIAL SHAPE FOR BALCONIES LOCATION2

Based on customer requirements, Ecomembrane suggests the most appropriate form for membrane integration in order to not create stress on any of the surfaces.
Ecomembrane is also skilled of studying and manufacturing dedicated stainless-steel balconies and supports so as to fully respond to the customer's accessibility requirements.

SPECIAL SHAPE FOR BALCONIES LOCATION3

SPECIAL SHAPE FOR BALCONIES LOCATION4

 


 

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