Make
Air Liquide Advanced Technologies, France
Model
Helial SL
Facility Status
Working
Date of Installation
Facility Management Division
Centre for Sophisticated Instruments and Facilities (CSIF)-IoE Funded
.
Category
- Services ยป Service
Booking Details
Slot Booking Link
Booking available for
Internal
Available Equipment/ Mode of use
LHe to be provided to users in LHe cryogenic dewar
Facility Management Team and Location
Facility In Charge
Prof. Dipanshu Bansal
dipanshu@iitb.ac.in
022-25767508
Co-convenors
NA
Facility Manager
NA
Facility Operator
Praveen Topagi, Email: praveentopagi@iitb.ac.in, 8850964561
Prabhakara S, Email: prabhakaras@iitb.ac.in , 9742311564
Facility Management Members
Prof. Dipanshu Bansal
Prof. Shankar Krishnan
Prof. Kantimay Das Gupta
Prof. K G Suresh
Prof. Ashwin Tulapurkar
Prof. Kasturi Saha
Prof. Ashutosh Kumar
Prof. Ramaswamy Murugavel
Prof. Maheswaran S
Prof. Avinash Mahajan
Prof. Atul Srivastava
Department
Mechanical
Lab Email ID
praveentopagi@iitb.ac.in
Facility Location
Refrigeration and Cryogenics Lab, N-5 bay, Mechanical Engineering Department, I.I.T. Bombay, Powai, Mumbai - 400076
Lab Phone No
022-2159-3719
Facility Features, Working Principle and Specifications
Facility Description
Facility Description
Liquefaction of Helium gas
Features Working Principle
The process gas (Helium) is compressed and undergoes isentropic expansion via Turbines until the Helium temperature falls below the inversion temperature. Then, isenthalpic expansion in the Joule-Thomson device and helium gas is liquefied, stored in a dewar at slightly above atmospheric pressure.
Main parts of the helium plant
- Recirculation compressor
- Oil Removal System
- Buffer Vessel
- Cold Box
- Dewar
- Recovery gas bag
- Recovery compressor
Body Specification
NA
Instructions for Registration, Sample Preparation, User Instructions and Precautionary Measures
Instruction for Sample Preparation
Users need to bring LHe cryogenic dewar
User Instructions and Precautionary Measures
Users need to follow cryogenic safety guidelines.
Charges for Analytical Services in Different Categories
Usage Charges
| Cost of 100 lt He using recovered gas | If Dewar is cold | If Dewar is warm |
| 99.5% and above purity return gas | Rs. 12045 | Rs. 17303 |
| 98.5 to 99.5% purity return gas | Rs. 16606 | Rs. 21865 |
| 97 to 98.5% purity return ga | Rs. 21495 | Rs. 26754 |
| 95 to 97% purity return gas | Rs. 28665 | Rs. 33923 |
| 92.5 to 95% purity return gas | Rs. 40069 | Rs. 45327 |
| If the return gas is not equivalent to given liquid then actual cost of the liquid will be charged for the remaining gas (actual cost of 100 lt Rs. 156237) | ||
| Liquid | Return Gas | Cost |
| 1 lt | 0.767725 m3 | Rs. 1562 |
Applications
- NMR, MRI Cooling, Superconducting magnets
- Low-temperature superconductors
- Material Property testing at Low temperature
- Dilution Refrigeration
- PPMS and MPMS
- Cryopreservation of cells and microbes.
Sample Details
Chemical allowed
NA
Allowed Substrate
NA
Gases allowed
NA
Substrate Dimension
NA
Target dimension
NA
Contamination remarks
NA
Precursors/ Targets allowed
NA