GB2509928A - Tunnel ventilation fan and nozzle assembly - Google Patents

Tunnel ventilation fan and nozzle assembly Download PDF

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Publication number
GB2509928A
GB2509928A GB1300855.2A GB201300855A GB2509928A GB 2509928 A GB2509928 A GB 2509928A GB 201300855 A GB201300855 A GB 201300855A GB 2509928 A GB2509928 A GB 2509928A
Authority
GB
United Kingdom
Prior art keywords
nozzle
fan
tunnel
assembly
trailing edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1300855.2A
Other versions
GB201300855D0 (en
Inventor
Fathi Tarada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mosen Ltd
Original Assignee
Mosen Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mosen Ltd filed Critical Mosen Ltd
Priority to GB1300855.2A priority Critical patent/GB2509928A/en
Publication of GB201300855D0 publication Critical patent/GB201300855D0/en
Priority to PCT/GB2014/000013 priority patent/WO2014111679A1/en
Priority to US14/760,933 priority patent/US20160025105A1/en
Priority to EP14705379.7A priority patent/EP2946118B1/en
Priority to CA2897643A priority patent/CA2897643A1/en
Priority to ES14705379T priority patent/ES2880801T3/en
Priority to DK14705379.7T priority patent/DK2946118T3/en
Priority to JP2015553151A priority patent/JP2016509640A/en
Priority to AU2014206641A priority patent/AU2014206641A1/en
Priority to MX2015009273A priority patent/MX2015009273A/en
Priority to GB1400773.6A priority patent/GB2512181B/en
Priority to KR1020157021405A priority patent/KR20150105974A/en
Publication of GB2509928A publication Critical patent/GB2509928A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F04D29/547—Ducts having a special shape in order to influence fluid flow
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/003—Ventilation of traffic tunnels
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/006—Ventilation at the working face of galleries or tunnels
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
    • E21F1/085—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators using compressed gas injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Ventilation (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A tunnel ventilation fan assembly comprising a fan (3, 4, 15), a nozzle coupled to the fan, the nozzle having a trailing edge 6 at the distal end from the fan. The nozzle shape being arranged to turn flow away from the surrounding tunnel surfaces and wherein the angle 16 made between the nozzle trailing edge 6 and the centreline 8 of the nozzle is within the range 45 degrees to 85 degrees. The assembly may have two nozzles, with one nozzle being installed on each side of the fan. A bellmouth 1 may be installed on the nozzle.

Description

ENERGY-EFFICIENT TUNNEL VENTILATION DEVICE
BACKGROUND OF TI-IF INVENTION
[0001] Longitudinal ventilation via jetfans is generally acknowledged as being a cost-effective solution for tunnels, where the length and risk profile of the tunnel allows such an installation. However, jetfans are not particularly energy efficient.
with typical installations wasting over half the supplied electrical power.
[0002] A major reason for the inefficiency of jetfans is the Coanda effect. This causes the stream of high-velocity air issuing from a jetfan to adhere to adjacent solid surfaces including the tunnel wafls and soffit. A significant proportion of the aerodynamic thrust, typically 20% to 30%, is thereby wasted through the friction between the jet and the surrounding tunnel surfaces.
[0003] A previous patent GB2465261 granted to the present Applicant describes convergent nozzles that can be installed on one or both sides of jetfans, in order to accelerate the tunnel air and turn it away from the tunnel surfaces. k practice, this invention has been implemented by fitting conical nozzles onto jetfans.
[0004] The fitting of convergent nozzles onto jetfans does however come with an energy performance penalty where such nozzles are fitted to the inlet side of a reversible jetfan. The reason for this is that the power absorbed due to the inlet-side pressure drop cannot be recovered. This is contrary to the exit side where the kinetic energy of the discharged air serves to accelerate the tunnel air.
[0005] In order to reduce the inlet pressure losses to jetfans, circular bellrnouths are typically fitted to the inlet side, in order to ensure a smooth flow. For reversible flow jetfans, such bellmouths are typically fitted to both sides ofthejetfan. Due to manufactunng reasons, beilmouths are generally spun from sheet metal into a circular shape. The circularity of the bellmouths introduces a significant constraint on the shape of ajetfan nozzle. In particular, it has not previously been possible to combine the advantages relating to a reduction of the Coanda effect through the fitting of convergent nozzles with low inlet flow losses into a jetfan.
[0006] The Applicant believes that there remains scope to improve the energy efficiency of longitudinal tunnel ventilation systems.
SUMMARY OF THE INVENTION
[0007] According to one aspect of the invention, there is provided a fan assembly for installation in a tunnel to provide ventilation in the tunnel, the fan assembly comprising: a fan for generating a ventilating flow; and a nozzle coupled to the fan, the nozzle having a trailing edge at the distal end from the fan; and wherein the assembly is arranged or arrangeable such that a ventilating flow generated by the fan will pass through the nozzle before exiting the assembly to enter a tunnel to be ventilated; and the nozzle being alTanged to turn the flow away from the sulTounding tunnel surfaces; and wherein the angle made between the nozzle trailing edge and the centreline of the nozzle is within the range of 45 degrees to 85 degrees.
[0008] The invention provides a solution to the technical issue of how to turn the flow from ajetfan away from the surrounding tunnel surfaces and hence achieve greater in-tunnel aerodynamic thrust, without choking the flow through the jetfan through increased pressure losses.
[0009] According to a further aspect of the invention, there is provided a fan assembly for tunnel ventilation, the assembly comprising: a fan for generating a ventilating flow in a first direction; and a nozzle adjacent to the fan in the first direction so that the ventilating flow will pass through the nozzle before exiting into a tunnel to be ventilated; wherein the nozzle has a first end proximal to the fan and a second end distal from the fan having a trailing edge, the angle between the trailing edge and the nozzle centre line is substantially within the range of 45 to 85 degrees and the nozzle is aranged to direct the ventilation away from sunounding tunnel surfaces.
[0010] This aspect of the invention is achieved by tilting the trailing edge of the nozzle, so that one side of the nozzle (the pressure side') is longer than the opposite side (the suction side'). The pressure side of the nozzle is termed thus because when the nozzle is placed on the discharge side of the jetfan, the pressure side pushes' the airflow away from the tunnel surrounding surfaces when the jetfan is in use. The pressure side would thus experience a static pressure that is greater than that on the opposite suction side.
[0011] In case a convergent nozzle is used as described in patent 02465261.
tilting the trailing edge of the nozzle has the effect of increasing the aerodynamic throat of the nozzle, and hence reducing the pressure drop through the nozzle throughbore. The power consumption of the jetfan is thus significantly reduced.
[0012] In practice, manufacturers stock a standard range of bellrnouths, The present invention permits the selection of a standard befimouth size which can be installed at a tilt to the nozzle centre-line. In particular, a bellmouth with the same nominal diameter as the fan on which the nozzle is to be installed can be used. This option to use standard jetfan parts is a key advantage of the present invention.
[0013] The nozzle can typically be used for acoustic silencing, as well as for turning the discharged flow away from the tunnel surrounding surfaces. From previous laboratory measurements, it has been established that the performance of the silencer is dependent upon the solid angle subtended by the silencer surface onto the fan outlet. Through judicious choice of nozzle geometry, adequate acoustic silencing can be achieved, given the occlusion of the fan ouflet by the nozzle pressure side'.
[0014] The arrangement of the circular fan outlet connected to a tilted belimouth typically leads to a non-conical shape for the nozzle. This does not however pose any particular manufacturing difficulty, since the nozzle skins are typically cut from sheet metal and rolled into the required shape.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] A number of preferred embodiments of the present invention wUl now be descnbed by way of example only, and with reference to the accompanying drawings, in which: [0016] Like reference numerals are used for like components throughout the figures; [0017] Fig. 1 shows an embodiment of a ventilation apparatus with nozzles as described in this invention installed on both sides of a fan; [0018] Fig. 2 shows an end view of a ventilation apparatus with a nozzle as described in this invention; [0019] Fig.3 shows an embodiment of a ventilation apparatus with a nozzle as descnbed in this invention installed on one side of a fan.
DETAILED DESCRIPTION OF EMBODIMENTS OF THE TNVENTION
[0020] Referring to Figure 1, this shows a side view of an embodiment of the present invention within a bidirectional ventilation apparatus. which is designed to operate in a fully reversible manner.
[0021] In this embodiment, a fan assembly comprising a fan rotor (3) driven by a motor (4) is installed within a fan housing (15). Airflow (5) enters the fan rotor (3) through a befi mouth (1) and an inlet nozzle throughbore (1 OA). before being discharged thorough an oudet nozzle throughbore (lOB).
[0022] As can be seen in Figure 1, the nozzle has a centreline (8), defined as the geometric mean between the pressure side (ii) and suction side (12) lines. An angle (13) is defined between the fan centreilne (7) and the nozzle centreline (8). The pressure side of the nozzle (ii) is alTanged to turn the flow direction, so that in use, the discharged air flows away from the surounding tunnel surfaces.
[0023] A further angle (16)is defined between the nozzle centreline (8) and a trailing edge (6) of the nozzle. Preferably, the angle (16) is between 45 degrees and 85 degrees. Preferably still, the angle (16) is approximately 65 degrees.
[0024] The embodiment of Figure 1 shows a nozzle pressure side angie (17) of 7 degrees. A larger geometric throat (14) can be arranged at both the inlet and discharge sides of the nozzle, by tilting the nozzle trailing edge (6) by the angle (16) between the nozzle centreline (8) and the trailing edge (6). This leads to reduced pressure losses and improved energy efficiency.
[0025] RefelTing now to Figure 2, which shows an end view of an embodiment of this invention, the nozzle shape is arranged to turn to flow in a prescribed direcdon, preferably away from the surrounding tunnel surfaces.
[0026] We refer now to Figure 3, which shows a side view of a particular embodiment of this invention which would normally (but not exclusively) be operated in a unidirectional manner.
[0027] In this embodiment, the indicated airflow direction is from left to nght, i.e. the airflow enters into a straight nozzle via a bellmouth (1) first, prior to being accelerated by the fan rotor (3) into a shaped nozzle with a throughbore (10). The discharged flow is turned by a pressure side (11) which is longer than the suction side (12), such that in use, the discharged air flows away from the surrounding tunnel surfaces. Since a straight inlet nozzle is selected in this embodiment, the inlet pressure drop to the fan is less than that for the embodiment depicted in Figure 1.
The aerodynamic thrust can therefore be expected to be higher for the embodiment described in Figure 3 compared to that in Figure I. [0028] In Figure 3, the flow direction can if necessary be reversed by running the fan rotor in the opposite direction. Due to the increased Coanda effect and additional inlet pressure drop, a reduction of the in-tunnel aerodynamic thrust can be expected in the reverse flow direction (i.e. from right to left) in the embodiment described in Fig. 3.
[0029] It would be possible to modify an existing fan assembly in order to fit nozzles as described in this invention to one or more sides of a fan, and hence reap the benefits of improved performance.
[0030] It will be appreciated that the foregoing are merely an examples of embodiments and just some examples of their use. The skilled reader will readily understand that modifications can be made thereto without departing from the true scope of the inventions.

Claims (5)

  1. CLAIMS: 1. A fan assembly for installation in a tunnel to provide ventilation in the tunnel, the fan assembly comprising: a fan for generating a ventilating flow; and a nozzle coupled to the fan, the nozzle having a trailing edge at the distal end from the fan; and the assembly being arranged or arrangeable such that a ventilating flow generated by the fan will pass through the nozzle before exiting the assembly to enter a tunnel to be ventilated; and the nozzle shape being arranged to turn the flow away from the surrounding tunnel surfaces; and wherein the angle made between the nozzle trailing edge and the centreline of the nozzle is within the range of 45 degrees to 85 degrees.
  2. 2. A fan assembly with two nozzles as described in claim I, with one nozzle installed on each side of a fan.
  3. 3. A fan assembly for installation in a tunnel to provide ventilation in the tunnel substantially as herein described with reference to any one of the accompanying figures.
  4. 4. A method of modifying a fan assembly comprising a fan arranged for providing a ventilating flow in a tunnel substantially as herein described with reference to any one of the accompanying figures.
  5. 5. A nozzle for fitting to a fan for providing a ventilating flow in a tunnel substantially as herein described with mference to any one of the accompanying figures.
GB1300855.2A 2013-01-17 2013-01-17 Tunnel ventilation fan and nozzle assembly Withdrawn GB2509928A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
GB1300855.2A GB2509928A (en) 2013-01-17 2013-01-17 Tunnel ventilation fan and nozzle assembly
KR1020157021405A KR20150105974A (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device
DK14705379.7T DK2946118T3 (en) 2013-01-17 2014-01-17 ENERGY-EFFICIENT TUNNEL VENTILATION APPLIANCE
US14/760,933 US20160025105A1 (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device
EP14705379.7A EP2946118B1 (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device
CA2897643A CA2897643A1 (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device
ES14705379T ES2880801T3 (en) 2013-01-17 2014-01-17 Energy efficient tunnel ventilation device
PCT/GB2014/000013 WO2014111679A1 (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device
JP2015553151A JP2016509640A (en) 2013-01-17 2014-01-17 High energy efficiency tunnel ventilator
AU2014206641A AU2014206641A1 (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device
MX2015009273A MX2015009273A (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device.
GB1400773.6A GB2512181B (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1300855.2A GB2509928A (en) 2013-01-17 2013-01-17 Tunnel ventilation fan and nozzle assembly

Publications (2)

Publication Number Publication Date
GB201300855D0 GB201300855D0 (en) 2013-03-06
GB2509928A true GB2509928A (en) 2014-07-23

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
GB1300855.2A Withdrawn GB2509928A (en) 2013-01-17 2013-01-17 Tunnel ventilation fan and nozzle assembly
GB1400773.6A Expired - Fee Related GB2512181B (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1400773.6A Expired - Fee Related GB2512181B (en) 2013-01-17 2014-01-17 Energy-efficient tunnel ventilation device

Country Status (11)

Country Link
US (1) US20160025105A1 (en)
EP (1) EP2946118B1 (en)
JP (1) JP2016509640A (en)
KR (1) KR20150105974A (en)
AU (1) AU2014206641A1 (en)
CA (1) CA2897643A1 (en)
DK (1) DK2946118T3 (en)
ES (1) ES2880801T3 (en)
GB (2) GB2509928A (en)
MX (1) MX2015009273A (en)
WO (1) WO2014111679A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2562091A (en) * 2017-05-04 2018-11-07 Mosen Ltd Optimised tunnel ventilation device
US11655712B2 (en) 2017-05-04 2023-05-23 Mosen Ltd Optimised tunnel ventilation device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2562263A (en) * 2017-05-10 2018-11-14 Mosen Ltd Bellmouth for jetfan
CN106907176A (en) * 2017-05-10 2017-06-30 杨宏俊 A kind of coal gas in mine is from dynamic pressure wind dilution device
CN109185200B (en) * 2018-11-12 2020-04-24 杨逢春 Automatic air guide device of local ventilator of coal mine and use method of automatic air guide device
CN110360153A (en) * 2019-06-23 2019-10-22 北京交通大学 A kind of tunnel ventilation blower
CN110630308A (en) * 2019-09-05 2019-12-31 常州大学 Fracturing single-well multi-branch compressed air energy storage ventilation system for coal mine well
DE102019220089A1 (en) * 2019-12-18 2021-02-04 W & S Management Gmbh & Co. Kg Nozzle element for a jet fan and jet fan
CN111535846B (en) * 2020-06-22 2022-04-26 于晓晓 Method capable of stabilizing wind flow for tunnel construction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01130099A (en) * 1987-11-12 1989-05-23 Fuji Electric Co Ltd Blower for tunnel ventilation
EP1267132A1 (en) * 2001-06-13 2002-12-18 Ce2S N.V. Ventilating device and ventilating system fitted therewith
GB2465261A (en) * 2008-10-24 2010-05-19 Mosen Ltd Tunnel ventilation device
GB2479082A (en) * 2008-10-24 2011-09-28 Fathi Tarada Tunnel Ventilation Fan Nozzle

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Publication number Priority date Publication date Assignee Title
JPH01237400A (en) * 1988-03-18 1989-09-21 Hitachi Ltd Reversable axial flow air blower
JPH1123032A (en) * 1997-06-30 1999-01-26 Mitsubishi Heavy Ind Ltd Fan device for ventilating tunnel
DE19920513A1 (en) * 1999-05-05 2000-11-09 Witt & Sohn Gmbh & Co Jet fan
DE102004041696B4 (en) * 2004-08-28 2006-11-30 Wolter Gmbh & Co. Kg Jetventilator
DE102007017854A1 (en) * 2007-04-16 2008-10-30 Siemens Ag Internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01130099A (en) * 1987-11-12 1989-05-23 Fuji Electric Co Ltd Blower for tunnel ventilation
EP1267132A1 (en) * 2001-06-13 2002-12-18 Ce2S N.V. Ventilating device and ventilating system fitted therewith
GB2465261A (en) * 2008-10-24 2010-05-19 Mosen Ltd Tunnel ventilation device
GB2479082A (en) * 2008-10-24 2011-09-28 Fathi Tarada Tunnel Ventilation Fan Nozzle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2562091A (en) * 2017-05-04 2018-11-07 Mosen Ltd Optimised tunnel ventilation device
US11655712B2 (en) 2017-05-04 2023-05-23 Mosen Ltd Optimised tunnel ventilation device

Also Published As

Publication number Publication date
ES2880801T3 (en) 2021-11-25
US20160025105A1 (en) 2016-01-28
AU2014206641A1 (en) 2015-08-06
MX2015009273A (en) 2015-12-15
EP2946118B1 (en) 2021-03-03
EP2946118A1 (en) 2015-11-25
DK2946118T3 (en) 2021-05-25
GB2512181A (en) 2014-09-24
GB2512181B (en) 2017-06-07
KR20150105974A (en) 2015-09-18
WO2014111679A1 (en) 2014-07-24
GB201300855D0 (en) 2013-03-06
CA2897643A1 (en) 2014-07-24
GB201400773D0 (en) 2014-03-05
JP2016509640A (en) 2016-03-31

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