Dr. Harsh Vardhan launches DME fired “Aditi Urja Sanch” Unit at CSIR-NCL, Pune
On 21st October 2020, the Union Minister of Science and Technology and Earth Sciences, Dr. Harsh Vardhan inaugurated the DME fired “Aditi Urja Sanch” unit along with the DME-LPG blended fuel cylinders and handed them over for common public and CSIR-NCL (National Chemical Laboratory) canteen use on a trial basis at CSIR-NCL premises virtually through video-conferencing.
Dimethyl ether (DME) is an ultra-clean fuel. CSIR-NCL has developed nation’s first kind of DME pilot plant with 20-24Kg/day capacity. The conventional LPG burner is not suitable for DME combustion as DME density is different than LPG. To address this issue, CSIR- NCL’s “ADITI URJA SANCH” has come up with a helpful, innovative setup. The new Burner is fully designed and fabricated by NCL for DME, DME -LPG blended mixtures and LPG combustion.
Salient features of newly designed Aditi Urja Sanch Burner:
- The new design is efficient for both DME and the blend of DME and LPG.
- Novel design and flexible air ingress.
- The new nozzle design allows optimum oxygen ingress for combustion
- The angles at which nozzles are placed maximize the heat transfer area across the utensils.
- Optimum flame velocity can be obtained.
- The length of the flame (high, low, and medium) can be adjusted by altering the oxygen ingress.
- The experiment shows that it increases the heat transfer rate as well.
The newly designed stove can burn with up to 30 % DME blended with LPG or 100% DME as fuel. The air to fuel ratio is different for DME blended fuel to achieve optimum combustion and thermal performance. A 20% DME blending with LPG, with fewer infrastructure changes, is expected to result in substantial savings annually. The DME from Methanol process developed by CSIR-NCL is producing 20-24 kg/ day. This economical, cost-effective process will be scaled up to 0.5 Ton per day through CSIR-FTC project. CSIR-NCL plans under “Aditi UrjaSanch” to launch in future industrial burners for low emission, DME/ DME blended fuel for automobiles and stationery power.
Its efficiency trials and comparison with conventional burners have been done. Trial runs have demonstrated an improvement by 10-15 %, compared to conventional burners using LPG alone.
The DME project is moving on fast track mode from the laboratory to the market to ultimately reach people under the methanol economy and green sustainable fuel policy of the country. In the current phase, CSIR sponsored FTT/ FTC (Fast track Commercialization) project for the pilot plant demonstration has been sanctioned, and CSIR-NCL is in advanced discussion with various industry stakeholders.
The DME process technology is economical, cost-effective, and scalable with in-situ product purification as well as a heat integration unit that produces pure DME. This technology developed by CSIR-NCL at present has the capacity of 20-24 kg/ day DME production. It is to be scaled up to 0.5 Ton per day through the CSIR-FTC project.
A clean cooking fuel combination of DME-LPG also safeguards the well-being of women and children.