--'Cool vests' for jawans to brave the desert heat--
JAISALMER: The defence research and development organization (DRDO) has prepared a 'cool vest jacket' for BSF jawans guarding the international border in extreme hot conditions. The vest, along with a cap, was recently put on trial in Shahgarh Bulge area. According to BSF sources, there is still scope for improving the vest and the BSF panel supervising the trial has forwarded its suggestions.
The BSF jawans, deployed on duty in 50 to 55 degrees Celsius near the international border adjoining Pakistan, often have to face lot of problems due to prolonged exposure to heat.
According to DRDO officials, the cool jacket has 12 pockets in the front and back, in which packets of phase change material (PCM) are kept. PCM packets help to keep the body cool for approximately four hours. After that, they have to be kept in a deep freezer for recharging. After recharge, these packets can be re-used.
The jacket provide respite to jawans by keeping their body temperature below 30 degrees Celsius. The PCM packets absorb body's excessive heat, thus cooling the soft tissues and blood as it circulates through the cardiovascular system, said an official.
The cost of the jacket is nearly Rs 2,000 and weighs between 1.5 kg and 2kg. It is easy to wear and the shelf life of a PCM is nearly six months. Once it is approved, these jackets will be made available in open market.
It works on the principle of latent heat absorption, said Col S D Goswami, defence spokesperson. The Army had also carried out trials and forwarded the report to DRDO, he added.
source: www_timesofindia.com
JAISALMER: The defence research and development organization (DRDO) has prepared a 'cool vest jacket' for BSF jawans guarding the international border in extreme hot conditions. The vest, along with a cap, was recently put on trial in Shahgarh Bulge area. According to BSF sources, there is still scope for improving the vest and the BSF panel supervising the trial has forwarded its suggestions.
The BSF jawans, deployed on duty in 50 to 55 degrees Celsius near the international border adjoining Pakistan, often have to face lot of problems due to prolonged exposure to heat.
According to DRDO officials, the cool jacket has 12 pockets in the front and back, in which packets of phase change material (PCM) are kept. PCM packets help to keep the body cool for approximately four hours. After that, they have to be kept in a deep freezer for recharging. After recharge, these packets can be re-used.
The jacket provide respite to jawans by keeping their body temperature below 30 degrees Celsius. The PCM packets absorb body's excessive heat, thus cooling the soft tissues and blood as it circulates through the cardiovascular system, said an official.
The cost of the jacket is nearly Rs 2,000 and weighs between 1.5 kg and 2kg. It is easy to wear and the shelf life of a PCM is nearly six months. Once it is approved, these jackets will be made available in open market.
It works on the principle of latent heat absorption, said Col S D Goswami, defence spokesperson. The Army had also carried out trials and forwarded the report to DRDO, he added.
source: www_timesofindia.com