New compressor station

Second stage of nitrogen system (N2 refrigerator, cryogenic tank,

pipe lines)

Cryogenic equipment required to run NICA

Third stage of nitrogen system (N2

refrigerator, cryogenic tank, pipe lines)

Helium satellite refrigerators and pipe

lines for Collider

Helium liquefier “OG-1000”

Helium purification units

helium gas bags

Helium screw compressors “Kaskad-

110”Unit is ready for commissioning

Contract is signed, shipping is expectedContract is not signed yet, first calculations are done, potential suppliers are selected

Status and assessment deadlines of NICA cryogenic system development

Work description Status Assessment deadlines

Development of the helium cryogenic plant: 1. liquefier OG-1000, 2. enlargement of the helium purification

system,3. gas bags,4. designing and manufacturing of the new

“wet” turbo-expanders for helium refrigerators KGU-1600.

1. Liquefier OG-1000 is under commissioning now.

2. For helium purification system the main required parameters are calculated and potential suppliers are selected.3. For gas bags the contract is signed and shipping is expected.4. For new “wet” turbo-expanders the first calculations are in progress.

1. Liquefier OG-1000 – June of 2016.2. Helium purification system - June of 2017.3. Gas bags - June of 2016.4. New “wet” turbo-expanders - December of 2016

Development of the new compressor station:1. Building reconstruction for the new

compressor station2. Commissioning of the first stage of LN2

system3. Commissioning of the two “Kaskad-110”

helium compressors.

1. Building reconstruction is at the beginning stage of construction project.

2. The contract for the first stage of LN2 system is signed and shipping is expected.

3. Both “Kaskad-110” are supplied and in a storage now waiting for finish of building reconstruction.

Building reconstruction – December 2016.First stage of LN2 system and “Kaskad-110” commissioning - December 2016.

Water cooling system Work is at the design stage. Potential suppliers are being selected now.

June of 2016.

Second and third stage of LN2 system Designing is done. The contract is being prepared.

Second stage – December 2016,Third stage – January 2018.

Cryogenic pipe lines for the helium system of booster.

Work is at the stage of first calculations, scheme drawing and selecting of potential suppliers.

June of 2017

Helium satellite refrigerators and pipe lines for Collider.

Work is at the stage of first calculations, scheme drawing and selecting of potential suppliers.

December of 2018

Central helium

liquefier

KGU-1600 helium

refrigerators

KGU-1600 helium

refrigeratorsHelium

gas bags

Helium gas

bags

Helium purification units

Helium purification units

Helium purification units

Screw helium

compressor

Nitrogen turbine

compressor

Nitrogen liquefier

Nitrogen gas bags

Nitrogen reservoir with

pumps

Nitrogen receiver

Nitrogen turbine

compressor

Screw helium

compressor

Thank you!

General view

MPD

Satellite refrigerato

r

Control dewar

Cryogenic equipment for MPD

Controldewar

Schematic diagram•Heat capacity: 100W at 4.5K•LN2 reservoir contains a heat exchanger (compressed helium - boiling nitrogen) •Portion of the LHe supply stream is taken to cool the current leads•There are 3 additional lines of the return flow to operate in cooldown mode

HEX

HEX

HEXHEX

Schematic diagram for MPD cooling down

Heat exchanger of the SC coil