Liquid Helium plant and Nitrogen Plant
Liquid Helium plant and Nitrogen Plant
Make
Liquid Nitrogen plant: 1 ~50LPH and newly installed ~100 LPH capacity Nitrogen plant: Make: Stirling Cryogenic Pvt. Ltd, Netherlands. Liquid Helium Plant : Make: Air Liquide Advanced Technologies,France
Model
Liquid Nitrogen plant: Model: StirLIN-4, StirLIN-8, Liquid Helium Plant : Model: Helial SL
Facility Status
Working
Date of Installation

Category

  • Services » Service

Booking Details

Facility Management Team and Location

Faculty In Charge
Name : Prof. Milind D. Atrey
Email : matrey@iitb.ac.in
Contact: +91-22-2576-7522 ,
+91-22-2572-6875
Facility Operator
1) Prabhakara S, Email: prabhakaras@iitb.ac.in, Contact: 9742311564
2) Praveen Topagi, Email: praveentopagi@iitb.ac.in, Contact: 8850964561
Co-convenors
Prof. Ramesh Kumar Singh
Prof. M Senthil Kumar
Prof. A V Mahajan
Prof. Kantimay Das Gupta
Prof. Subhabrata Dhar
Prof. Maheswaran S.
Prof. Rodney A. Fernandes
Prof. Himanshu J. Bahirat
Prof. Dipanshu Bansal
Department
Mechanical
LAB Email ID
prabhakaras@iitb.ac.in
Facility Location
Refrigeration and Cryogenics Lab, N-4 bay, Mechanical Engineering Department, I.I.T. Bombay, Powai, Mumbai - 400076
Lab Phone No
3719

Facility Features, Working Principle and Specifications

Features Working Principle

Features :

LN2 Plant – 50LPH (StirLIN-4) Chiller Cooling capacity 48 kW Refrigerant R407C Suction/Discharge pressure 4.2/14 barg Suction temperature 11.7℃ Cryogenerator Cryogenerator power 45 kW Production capacity 50 lph Refrigeration capacity 4.4 kW@65K Working gas Helium Filling pressure 22 barg@50Hz Liquid nitrogen purity >99% Air compressor Compressor type Screw Motor power 25 Max Working pressure 12 barg LN2 Plant – 100LPH (StirLIN-8) Chiller Cooling capacity 108 kW Refrigerant R410A Suction/Discharge pressure 10/27 barg Suction temperature 11.7℃ Cryogenerator Cryogenerator power 90 kW Production capacity 100 lph Refrigeration capacity 8.8 kW@65K Working gas Helium Filling pressure 22 barg@50Hz Liquid nitrogen purity >99% Air compressor Compressor type Screw Motor power 45 Max Working pressure 12 barg

Working principle: 

Liquid Nitrogen plant :

The Stirling Liquid Nitrogen plant (StirLIN-4) is used to produce liquid nitrogen. The nitrogen is separated from compressed ambient air (consisting of 78 % nitrogen) using adsorption desorption process. Subsequently, the nitrogen is condensed and stored as liquid in storage container under positive pressure.

Main parts of helium plant 

  • Air compressor
  • Air vessel
  • Dryer
  • Pressure Swing Adsorption system
  • Nitrogen Vessel
  • Cryogenerator
  • Dewar

Liquid Helium Plant :

Liquefier (Cold Box)

The process gas (Helium) compressed and isentropic expansion in an open cycle via Turbo-Expanders until the Helium temperature falls below inversion temperature. Then isenthalpic expansion in Joule-Thomson device and helium gas is liquefied, stored in dewar at slightly above atmospheric pressure.

Main parts of helium plant 

  • Recirculation compressor
  • Oil removal System
  • Buffer Vessel
  • Cold Box
  • Dewar
  • Recovery gas bag
  • Recovery compressor

 

Body Specification

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Instructions for Registration, Sample Preparation, User Instructions, Precautionary Measures and Charges

Instruction for Sample Preparation

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User Instructions and Precautionary Measures

Instruction for users : 

The users are requested to apply in IRCC central facility registration (https://drona.ircc.iitb.ac.in/NewFac/CentralFacilityIndex.jsp?facilityCode=ME007)  either before coming to collect the liquid nitrogen or at the time of collection. Faculties, Students, Project staff can apply in this portal. As of now Institute staff are not allowed. For the students who are not able to apply, can ask their friends to lab mates to apply and choose the faculty of the students who required LN2. In the meantime they can mail software@ircc.iitb.ac.in their issue & get it rectified.

Caution: 

Users are instructed to bring their own containers and with some liquid helium in the container.

Applications

Liquid Nitrogen Plant : The LN2 most commonly used for cryopreservation of cells and microbes. Also used in Liquid Helium plant for precooling, in NMR for prevent heat leak into LHe, High temperature superconductors etc. 

Liquid Helium Plant : The liquid helium produced can be used for cooling purposes down to 2 K for doing various experiments at low temperatures. Liquid helium can also be used for cooling superconducting magnets such as the ones used in NMR machines, MRI machines, etc.

Sample Details

Chemical allowed

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Gases allowed

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Substrate Dimension

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Target dimension

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Contamination remarks

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Precursors/ Targets allowed

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SOP, Lab Policies and Other Details

Publications

Publications
No