A Kazakh mathematician claims to have solved an enormously important equation which has a million-dollar prize on it. Mukhtarbay Otelbayev from the Eurasian National University in Astana, Kazakhstan, claims he has proved the Navier-Stokes existence and smoothness problem after working on it for 30 years.
Otelbayev said colleagues in Kazakhstan and Russia agree the proof is correct. The Russian text and the specialist knowledge needed to understand the equations means that the international mathematical community is having difficulty evaluating it, the report said.
Scientists have devised a new mathematical formula that can reduce the annual electricity consumption of a building by up to 50 per cent.
The formula detects unreliable systems and faulty equipment that affects energy consumption, researchers said.
Li Song from University of Oklahoma and her research colleagues, Gang Wang from University of Miami and Mike Brambley from Pacific Northwest National Laboratory, have invented a method that can significantly reduce building operating costs as well as energy consumption.
Her applied research has potential to reduce energy consumption in a single structure by as much as 20 per cent.
Depending on the building conditions, Song estimates peak savings could be as much as 30 to 50 per cent.
Song’s research team devised a mathematical formula using existing output data, such as pump speed and power, to monitor energy use in heating, ventilation and air conditioning units.
Based on the results, the formula detects unreliable systems and faulty equipment that affects energy consumption.
Song’s formula creates virtual sensors to identify energy waste at the air-handling unit as well as at a whole-building level.
“Waiting until exorbitant utility bills appear may be a sign that the equipment hasn’t worked optimally for years,” said Song.
“This method allows earlier detection of minor equipment faults, possibly preventing an overhaul of the entire system,” Song said.
Besides saving companies money on utility bills, Song’s formula is a low-cost option to commercial monitors, making it easier for more companies to track energy efficiency.
Song estimates one ultrasonic flow meter, which monitors water pump performance, could cost as much as $5,000, and an organization would need to buy several monitors to get an accurate picture.
Song’s virtual process uses little to no hardware and is within two per cent uncertainty ranges compared with commercial meters.
Prior to developing virtual sensing, Song implemented the energy monitoring and operation fault detection and diagnosis manually in more than 100 buildings with cumulative savings exceeding $70 million.
In one building alone, her method reduced annual electricity consumption by 53 per cent, electricity demand by 21 per cent and gas consumption by 49 per cent in one year.
The move will bring incentives for both UT electricity department and consumers. While those opting pre-paid meters will get 1% rebate, the department will be saved of the hassle of generation of bills, recovery and default in payment.
While domestic consumers will be able to plan their budget, it will also come as a respite for tenants in Industrial Area. It was Chandigarh Industrial Tenants Association that filed a petition with the JERC, acting on which, the administration has been given six months to provide such meters to interested consumers.
Association president Chander Verma said the new system will save industrialists who have taken plots on rent from being frequently declared defaulters as one condition with pre-paid meters is that the department will not charge any security on these connections.
“The system has been introduced in a couple of cities in the countries as the consumers are given a password by the electricity department, which is fed into the meter to draw power. The meter automatically snaps supply on reaching the expiry of the balance,” he said.
In its order, the JERC has ruled, “From reading of the provisions of Regulation 6.10 of JERC (Electricity Supply Code) Regulations,2010, it is clear that if a person requires to take supply through a pre-paid meter the electricity department will not take security deposit from that person. The commission, therefore, directs the department to procure pre-paid meters within six months.”