RPC GAS SYSTEM Commercial grade Gas :Do in-situ purification Regeneration must :Get back ~90% Fixed pressure control room: pressure at all points in room.

Slides:



Advertisements
Similar presentations
Inert Gas Purification Systems
Advertisements

Comments on the gas system Issues of scale What gas mix? Summary Karol Lang The University of Texas at Austin NuMI Off-axis Experiment Detector Workshop.
B.Satyanarayana for S.D.Kalmani TIFR, Mumbai Closed Loop Gas System.
QUALITY ASSURANCE OF LARGE AREA RPC DETECTOR : TECHNIQUES FOR MEASUREMENT OF GAS LEAK RATE By Avinash V. Joshi Alpha Pneumatics, Mumbai (India)
1 Ann Van Lysebetten CO 2 cooling experience in the LHCb Vertex Locator Vertex 2007 Lake Placid 24/09/2007.
Inert Gas Purification Systems Why do we need them??? Many of the materials used in research and development today are extremely air sensitive, and can.
Preparation of a haloalkane. Haloalkanes can be made by a substitution reaction with an alcohol. Tertiary alcohols are the most reactive, and therefore.
Physical Characteristics of Gases
Dissolving and separating solutions
RPC Purifiers’ studies /status/ IR, RG
Resistive Plate Chambers for CMS (Pre-assembly Jobs done at BARC) Archana Sharma, Suman B.Beri P.U, Chandigarh & L.M.Pant BARC, Mumbai.
The RPC Closed loop Gas System. Schedule for completion - update Status Supplier: ok Mixer: ok Humidifier: ok Purifiers: installed, but not completely.
Xe leak status C. Garabatos. Leak story The maximum allowable leak rate corresponds to a loss of 10% of the total volume in one year – 0.3 l/h for the.
Gas Avalanche (%) Streamer (%) Maximum (%) Volume (L) Density (g/L) Weight (Kg) R134a , Isobutane , SF.
Gases and the Kinetic Molecular Theory. Speeds of gas molecules. For a single molecule. Kinetic energy is: KE = ½ mv 2 m = mass; v = velocity For a collection.
Daltons Law P t = P 1 + P 2 + P 3 +……. Daltons Law P t = P 1 + P 2 + P 3 +……. P t = x 1 p t + x 2 p t + x 3 p t +……. x = mole fraction p = total pressure.
Lecture 3411/30/05. Vapor pressure vs. boiling point?
1 May 6, 2009 C. Lu Continuously Monitoring the RPC Gas Mixture with a Gas Chromatograph C. Lu Princeton University.
AWG 36, 0.2 A 0.3 mm Heat Shrink Tubing t = 0.38 mm Silicone Coating t = 0.2 mm D = 3 mm Shielding: Copper Tape AWG 26, 2.2A 0.6 mm AWG 26, 2.2A 0.6 mm.
Scenario for the gas system 1.High cost gas (5 €/l of Xe) 2.High hydrostatic pressure over 7 m height 3.Light and large detectors, no big under- or.
1 Infrastructure at RAL Iouri Ivaniouchenkov, RAL MICE Collaboration CERN, 29 March 2003.
1 May 6, 2009 C. Lu Continuously Monitoring the RPC Gas Mixture with a Gas Chromatograph C. Lu Princeton University.
GASES. GASES AND PRESSURE Why are gases so unique?
Characterization And Testing Of 2m X 2m Glass Resistive Plate Chamber Mohammed Salim M Aligarh Muslim University.
Molar Volume, Density and Molar Mass
The Ideal Gas Law and Stoichiometry Chemistry 142 B Autumn Quarter, 2004 J. B. Callis, Instructor Lecture #14.
The Combined Gas Law Expresses the relationship between pressure, volume, and temperature of a fixed amount of gas. PV/T = k or P1V1/T1 = P2V2/T2 Charles’
02/07/2014R. Guida CERN/PH-DT-DI1 RPC R&D Collaboration PH-DT Topics of Interest Studies of gas systems performance and development of dedicated gas modules.
GASES. General Properties of Gases There is a lot of “free” space in a gas. Gases can be expanded infinitely. Gases fill containers uniformly and completely.
Dalton’s Law of Partial Pressures
1 Physical Characteristics of Gases Chapter Kinetic-molecular theory Particles of matter are always in motion.
The atom of the isotope of uranium used to make nuclear bombs (uranium-235) has an atomic number of 92 and a mass number of The number of protons.
GIF++ gas systems 21/01/2014Ernesto, Roberto PH-DT-DI gas service1.
Summer Updates- Summer Student Report Emine Altuntas Stephen Fee Supervisors: Mar Capeans, Ivan Glushkov, Roberto Guida Gamma Irradiation Facility.
M.Bhuyan, S.D.Kalmani, N.K.Mondal, S.Pal, Deepak Samuel, B.Satyanarayana and R.R.Shinde Gouranga Kole, Chiraag Lala and Kanishka Rawat.
Calliope ENEA Casaccia MON = monitor MWPC (CH1) T1 = test MWPC (CH3) T2 = test MWPC (BTF,CERN1,CERN2) T = temperature sensor P = atmospheric.
Active gas system status. S.Konovalov, K.Zhukov. Active gas system operation. S.Konovalov "Active gas system..."TRT Overview  Good design.
Chapter 2.2 Principles of Technology I Edinburg North High School.
A.2 Foul Water Lab QUIZ. Composition Book Entry  1. What is the purpose of this activity?
Ideal Gases Contributions by:
TOF Gas System Project Overview. Content Prototype for Aging tests done for RPC’s TOF Gas System: parameters and module layouts. Special Technology: channel.
Just add them up! 200 kPa500 kPa400 kPa1100 kPa ++=
The RPC Closed loop Gas System Slides from Bianco and Guida.
Composition of constituents The composition of constituent of a mixture is not fix. Air is made up of a mixture of gases. There is ___ % nitrogen gas,
ALICE-TRD gas system 1/4/2015R. Guida PH-DT-DI1. TRD gas system Few numbers:  Total number of modules/racks: 20 (max leak rate certified at construction.
Dalton’s Law of Partial Pressure
GIF++ gas systems 11/07/2014Ernesto, Roberto PH-DT-DI gas service1.
Dalton’s law of partial pressure At constant volume and temperature, the total pressure of a mixture of gases is the sum of the partial pressures of all.
Ideal Gas Law  An equation of state for a gas.  “state” is the condition of the gas at a given time.  PV = nRT  [Consider] If the moles remain constant.
Results from the CMS-RPC tests at CERN Gamma Irradiation Facility Roberto Guida CMS-RPC (Bari, Beijing, Napoli, Pavia, Sofia) Seoul, October 2005.
University of Kentucky
HMPID maintenance activities during LS1 during LS1 Cosimo Pastore HMPID PLENARY MEETING March 22th, 2013.
CMS-GEM gas system GEMs for CMS High Eta Muons - Workshop III, CERN April R.Guida PH-DT-DI.
S. Colafranceschi - Ischia CMS RPC Italia1 CMS RPC studies at ISR Stefano Colafranceschi Laboratori Nazionali Frascati Università di Roma – La Sapienza.
GIF++ gas system Outline:  Beam and cosmic trigger  Gas distribution panels  Gas detection (present and final layout)  Conclusions 14/1/2015R. Guida,
S.Colafranceschi 20 June Stefano Colafranceschi LNF Frascati CERN Universita’ di Roma – La sapienza An overview on gas studies, purifier materials.
Meeting RPC Gas Task Force Meeting – 15 A. Sharma January 21st, 2009
On-line gas mixing and multi-channel distribution system S.D.Kalmani, N.K.Mondal, B.Satyanarayana, P.Verma Tata Institute of Fundamental Research, Mumbai,
Second run with the Copper filter WA104 technical meeting – 23/03/2016.
TRD Gas System Layouts Production Readiness Review 03 – Nov F. Hahn.
Combined Gas Law You can re-write the ideal gas law P 1 V 1 = P 2 V 2 n 1 T 1 n 2 T 2.
1 Cary Kendziora Fermi National Laboratory Cary Kendziora Fermi National Laboratory CEC-ICMC 2013 Anchorage Alaska – June, 2012.
Density.
Proximity Cryogenics P&IDs Meeting
Proximity Cryogenics P&IDs meeting
Preliminary results on optimization of gas flow rate for RPCs
Follow-up of the tests with the copper filter
Assumption: in a water / HC mixture, mass fraction is the same as volume fraction. Example 1: 99 kg HC (density 700 kg/m3) and 1 kg H2O (density 1000 kg/m3).
Appendix I in your lab book
Presentation transcript:

RPC GAS SYSTEM Commercial grade Gas :Do in-situ purification Regeneration must :Get back ~90% Fixed pressure control room: pressure at all points in room ~ 1mm (weather maker) Mixtures:3 Gas system (Each Module) + 1 Spare Safety : Level 1:  RPC Safe :Level 2:  People working and Level 3 :  Everything Main Gas Tetrafluoroethane (High density leading to ~60 primary electron-ion pair

CERN Recirculation

Fractional Distillation

Gas Collection

Gas Distribution Mixed Gas

Gas Requirement For one Module : 64 RPC/Layer X140 Layer=8960~9K RPC Volume=200 X200X0.2=8000cc Total Gas = 8L/day (One volume/Day)  8000/24=333.33/60~=5.5 cc/min  At least we need ~10 SCCM  10 X 9K== 90L/Min If 20% fresh gas ~18L/min=1080L/Hr=25920L/Day 1kg==220lts=25920/220=1080Kgs/day

Gas Requirement Avalanche Mode : 95 % Freon 1kg Freon  220 L 8640L/Day  8640/220=39.27=~40Kg/day 1 cylinder k-size is 27.7kg then =~1.5 Cylin/day

PURIFIER 1. CLOSED LOOP : Remove OF Water Vapour,O 2 halogens and silicons produced 2. TWO (ACTIVATED MOL. SIEVE + Copper  WATER AND O 2 ) 3. REGENERATION :  HEATING 180deg. +FLUSHING WITH Ar + H2 (935/7%) 4. LEAK RATE OF CHAMBER  O2 Removal

RPC Tray