Deployable NestFold Capsules can be air-dropped in areas suffering from natural disasters rescuing victims.
Between 2004 and 2013 there were 320 registered disasters with victim numbers exceeding 140.8 million. Up to now, no technology is available to successfully help and shelter victims. NestFold brings to the table a complete system of pre and post-disaster management. Fully-equipped shelters (NestFold Capsules) will be air-dropped to all kind of disaster areas (fire, flood, landslide, earthquake etc). Each shelter is individually independent and can communicate with others using a flexible ad-hoc network. Shelters acquire data about the outer and inner environment and human’s health status as well. Additionally, they can provide safety and can cover basic human needs. Data are being sent to a nearby control station where disaster analysis occurs and if it is required, further instant help is provided to a specific shelter.
NestFold’s shelter design is based on catamaran’s watercraft design which has two parallel hulls. Its geometry keeps it stabilized since it has a wide stance on the water which can reduce induced motion and heeling in case of flood. Moreover, the dimensions of the shelter are chosen in such a way, that cargo and military aircrafts can carry the maximum amount of NestFold’s shelters, and allow the shelter to float in the case of flood, even when it is fully crowded and equipped. For example, Lockheed C-130 Hercules (aircraft) can fit up to 6 NestFold’s shelters and Boeing CH-47 Chinook up to 8. The design of a “squeeze box”, gives the shelter flexibility to withstand strong earthquake, as well as landslide.
When the shelter is extended, it becomes almost three times bigger than the folded size. It contains up to 16 seats, plus 2 foldable emergency beds. The weight of empty shelter is approximately 700 kg. Inside the shelter, there will be an additional amount of 120 kg of food, drinks including a first aid kit, 40 kg of electrical components and the passengers’ weight 18 people x 80 kg = 1440 kg. Summing these numbers up, there is a total weight of 2300 kg, when the shelter is fully used.
The shelter is constructed from the following advanced materials (from outside to inside):
1st layer: Silica fibre mixture with alumina/cloth. This material has high thermal insulation and in case of fire the shelter is totally protected. The temperature tolerance of the aforementioned material is 1200°C, its tensile strength 2.8 MPa and its thermal expansion 9.1μm⁄(°C).
2nd layer: Air. The air coefficient of thermal conductivity is 0.025w⁄(mK), helping to reduce the incoming heat wave to the shelter.
3rd layer: Foam Rubber Insulation. Fireproofing material with thermal conductivity 0.042 w⁄ (mK) and density 100 kg⁄m3
The exterior of the shelter is made with Kevlar, because of the high tensile strength to weight ratio of the material and its buoyancy, since it doesn't disintegrate in water. As to become more thermal resistance is coated with Silica fiber mixture with alumina.
The required energy for operation and communication purposes, will be generated by a small gas generator of 1KW and it will be stored in 2 rechargeable batteries (12V - 100Ah). In case of main power supply failure, a second hand generator can be used to produce sufficient power for the tracking signal.
The NestFold system will include sensing, processing and communication systems that will collect, process and inform the Data Fusion Center (DFC) on the health of survivors (Biometric, Temperature, Blood Pressure, Glucometer, SPO2, Pulse) and the environment inside and outside the NestFold capsules and capsule position (Temperature, CO2, Oxygen, Nitrogen, Argon, PM10, PM2.5, Humidity, Air-velocity, Pressure, Precipitation, GPS, Glonass, Galileo). Processors will process data before transmission to the DFC. Robust communication will be established with the data fusion center using mobile repeater nodes. The sensor network will automatically route information and reroute in case of node damage. Communications will be handled by complementary technologies including Low-Power Wide-Area Network (LPWAN) technology, WiFi, Mobile data (4G-5G). Although, high frequency communication systems could be used instead to communicate directly with the Data Fusion Center.
An Android app is developed in order to observe and inform residents of an affected area. Incorporated an interactive Google map, the users can notify other users if there is a natural disaster nearby. Moreover, nearby shelters are shown and using Shortest Path route, in order the user to identify and move to the nearest one. A user can report an incident of natural disaster and pick a position to crowdsourced.
Inside the shelter people can find food supplies and water to survive up to 6 days. On average, a person needs 1200 calories and 500 ml of water per day. Some extra supplies are placed in each shelter (+2kg of food and +10L of water) to ensure survival. First aid kit, emergency oxygen masks, fire extinguisher and flashlight are also located in the shelter for emergency situations. The total weight of the supplies is approximately120 kg.