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f | 1 | { | f | 1 | { |
2 | "author": "Veser, A.", | 2 | "author": "Veser, A.", | ||
3 | "author_email": "", | 3 | "author_email": "", | ||
4 | "creator_user_id": "17755db4-395a-4b3b-ac09-e8e3484ca700", | 4 | "creator_user_id": "17755db4-395a-4b3b-ac09-e8e3484ca700", | ||
5 | "doi": "10.35097/1478", | 5 | "doi": "10.35097/1478", | ||
6 | "doi_date_published": "2023", | 6 | "doi_date_published": "2023", | ||
7 | "doi_publisher": "", | 7 | "doi_publisher": "", | ||
8 | "doi_status": "True", | 8 | "doi_status": "True", | ||
9 | "extra_authors": [ | 9 | "extra_authors": [ | ||
10 | { | 10 | { | ||
11 | "extra_author": "Friedrich, A.", | 11 | "extra_author": "Friedrich, A.", | ||
12 | "orcid": "" | 12 | "orcid": "" | ||
13 | }, | 13 | }, | ||
14 | { | 14 | { | ||
15 | "extra_author": "Necker, G.", | 15 | "extra_author": "Necker, G.", | ||
16 | "orcid": "" | 16 | "orcid": "" | ||
17 | }, | 17 | }, | ||
18 | { | 18 | { | ||
19 | "extra_author": "Denkevits, A.", | 19 | "extra_author": "Denkevits, A.", | ||
20 | "orcid": "" | 20 | "orcid": "" | ||
21 | }, | 21 | }, | ||
22 | { | 22 | { | ||
23 | "extra_author": "Kuznetsov, M.", | 23 | "extra_author": "Kuznetsov, M.", | ||
24 | "orcid": "" | 24 | "orcid": "" | ||
25 | }, | 25 | }, | ||
26 | { | 26 | { | ||
27 | "extra_author": "Jordan, T.", | 27 | "extra_author": "Jordan, T.", | ||
28 | "orcid": "" | 28 | "orcid": "" | ||
29 | } | 29 | } | ||
30 | ], | 30 | ], | ||
31 | "groups": [], | 31 | "groups": [], | ||
32 | "id": "5192ae04-621b-4381-a7d7-e69bbd975c90", | 32 | "id": "5192ae04-621b-4381-a7d7-e69bbd975c90", | ||
33 | "isopen": false, | 33 | "isopen": false, | ||
34 | "license_id": "CC BY-NC-SA 4.0 | 34 | "license_id": "CC BY-NC-SA 4.0 | ||
35 | Attribution-NonCommercial-ShareAlike", | 35 | Attribution-NonCommercial-ShareAlike", | ||
36 | "license_title": "CC BY-NC-SA 4.0 | 36 | "license_title": "CC BY-NC-SA 4.0 | ||
37 | Attribution-NonCommercial-ShareAlike", | 37 | Attribution-NonCommercial-ShareAlike", | ||
38 | "metadata_created": "2023-08-04T08:50:53.958975", | 38 | "metadata_created": "2023-08-04T08:50:53.958975", | ||
t | 39 | "metadata_modified": "2023-08-04T08:53:39.878365", | t | 39 | "metadata_modified": "2023-08-04T09:04:21.618367", |
40 | "name": "rdr-doi-10-35097-1478", | 40 | "name": "rdr-doi-10-35097-1478", | ||
41 | "notes": "Abstract: In the frame of the PRESLHY project more than | 41 | "notes": "Abstract: In the frame of the PRESLHY project more than | ||
42 | 100 experiments on hydrogen \u2013 air flame propagation regimes in a | 42 | 100 experiments on hydrogen \u2013 air flame propagation regimes in a | ||
43 | shock tube at cryogenic temperatures were made with the combustion | 43 | shock tube at cryogenic temperatures were made with the combustion | ||
44 | tube at the KIT HYKA test site. More than half of the experiments were | 44 | tube at the KIT HYKA test site. More than half of the experiments were | ||
45 | made at cryogenic temperatures (between approx. 90\u00a0K and | 45 | made at cryogenic temperatures (between approx. 90\u00a0K and | ||
46 | 130\u00a0K). The rest experiments were conducted at ambient conditions | 46 | 130\u00a0K). The rest experiments were conducted at ambient conditions | ||
47 | as the reference data. It was however possible to provide experimental | 47 | as the reference data. It was however possible to provide experimental | ||
48 | data at various H2\u00a0concentrations from 8 to 60 Vol. %H2 and 3 | 48 | data at various H2\u00a0concentrations from 8 to 60 Vol. %H2 and 3 | ||
49 | blockage ratios (BR = 0, 0.3 and 0.6). During the course of the | 49 | blockage ratios (BR = 0, 0.3 and 0.6). During the course of the | ||
50 | experiments, many experimental difficulties and peculiarities specific | 50 | experiments, many experimental difficulties and peculiarities specific | ||
51 | for cryogenic temperatures were encountered. Critical conditions for | 51 | for cryogenic temperatures were encountered. Critical conditions for | ||
52 | flame acceleration to the speed of sound and to the detonation onset | 52 | flame acceleration to the speed of sound and to the detonation onset | ||
53 | at cryo-temperatures were experimentally found. It was also found that | 53 | at cryo-temperatures were experimentally found. It was also found that | ||
54 | the danger of hydrogen combustion and explosion in terms of maximum | 54 | the danger of hydrogen combustion and explosion in terms of maximum | ||
55 | combustion pressure is much higher than at ambient temperatures | 55 | combustion pressure is much higher than at ambient temperatures | ||
56 | because of several times higher density of the combusted substance. | 56 | because of several times higher density of the combusted substance. | ||
57 | Then, even for sonic deflagration at cryogenic temperatures, the | 57 | Then, even for sonic deflagration at cryogenic temperatures, the | ||
58 | maximum pressure might be higher than the detonation pressure at | 58 | maximum pressure might be higher than the detonation pressure at | ||
59 | ambient conditions. The data obtained in current work can be used for | 59 | ambient conditions. The data obtained in current work can be used for | ||
60 | safety distance assessment for LH2 safety | 60 | safety distance assessment for LH2 safety | ||
61 | applications.\r\nTechnicalRemarks: 7zip-files:\r\nThe naming | 61 | applications.\r\nTechnicalRemarks: 7zip-files:\r\nThe naming | ||
62 | convention of the corresponding 7zip-files largely follows the one | 62 | convention of the corresponding 7zip-files largely follows the one | ||
63 | provided in the Data Management Plan at ambient temperature 293K reads | 63 | provided in the Data Management Plan at ambient temperature 293K reads | ||
64 | as follows:\r\nPT0-25.7z\r\nwith PT indicating the PRESHY tube, the | 64 | as follows:\r\nPT0-25.7z\r\nwith PT indicating the PRESHY tube, the | ||
65 | index 0 means a smooth tube with blockage ratio BR = 0%, then the test | 65 | index 0 means a smooth tube with blockage ratio BR = 0%, then the test | ||
66 | number 25 corresponds to certain hydrogen concentration of | 66 | number 25 corresponds to certain hydrogen concentration of | ||
67 | 15%H2.\r\nFor cryogenic temperatures, it reads as follows: | 67 | 15%H2.\r\nFor cryogenic temperatures, it reads as follows: | ||
68 | \r\nPT30C-25.7z\r\nwith the meaning the PRESLHY tube experiment number | 68 | \r\nPT30C-25.7z\r\nwith the meaning the PRESLHY tube experiment number | ||
69 | 25 in an obstructed tube with blockage ratio BR = 30% at cryogenic | 69 | 25 in an obstructed tube with blockage ratio BR = 30% at cryogenic | ||
70 | temperature (prefix C). The experimental conditions should be | 70 | temperature (prefix C). The experimental conditions should be | ||
71 | addressed to the test number 25 with hydrogen concentration 15.2%H2 | 71 | addressed to the test number 25 with hydrogen concentration 15.2%H2 | ||
72 | \r\nEach data file consist of original recording \u201c.TPC\u201d-file | 72 | \r\nEach data file consist of original recording \u201c.TPC\u201d-file | ||
73 | converted to a CSV format file with extension \u201c.ASC\u201d.\r\nThe | 73 | converted to a CSV format file with extension \u201c.ASC\u201d.\r\nThe | ||
74 | structure of these files is simple. They are columnar comma separated | 74 | structure of these files is simple. They are columnar comma separated | ||
75 | CSV tables. The first line contains the time and names of the channel: | 75 | CSV tables. The first line contains the time and names of the channel: | ||
76 | \r\nTime, TRG, P01, P02, P03, P04, P05, P06, P07, P08, P09, P10, P11, | 76 | \r\nTime, TRG, P01, P02, P03, P04, P05, P06, P07, P08, P09, P10, P11, | ||
77 | P12, P13, F01, F02, F03, F04, F05, F07, F08, F09, F10, F11, F12, F13, | 77 | P12, P13, F01, F02, F03, F04, F05, F07, F08, F09, F10, F11, F12, F13, | ||
78 | F14, F15\r\n\u201cTRG\u201d is the trigger signal; \u201cP\u201d is | 78 | F14, F15\r\n\u201cTRG\u201d is the trigger signal; \u201cP\u201d is | ||
79 | the pressure sensor; \u201cF\u201d is the light sensor (InGaAs). | 79 | the pressure sensor; \u201cF\u201d is the light sensor (InGaAs). | ||
80 | \r\nThe second line contains the unit for each sensor:\r\ns, V, bar, | 80 | \r\nThe second line contains the unit for each sensor:\r\ns, V, bar, | ||
81 | bar, bar, bar, bar, bar, bar, bar, bar, bar, bar, bar, bar, V, V, V, | 81 | bar, bar, bar, bar, bar, bar, bar, bar, bar, bar, bar, bar, V, V, V, | ||
82 | V, V, V, V, V, V, V, V, V, V, V\r\nThe third line shows the start time | 82 | V, V, V, V, V, V, V, V, V, V, V\r\nThe third line shows the start time | ||
83 | of each channel. Because of the simultaneous data acquisition, the | 83 | of each channel. Because of the simultaneous data acquisition, the | ||
84 | start times are identical for all channels and can be omitted. \r\nThe | 84 | start times are identical for all channels and can be omitted. \r\nThe | ||
85 | \u201cTime\u201d column gives the time relative to the trigger event. | 85 | \u201cTime\u201d column gives the time relative to the trigger event. | ||
86 | The trigger event is recorded in the \u201cTRG\u201d column. In fact, | 86 | The trigger event is recorded in the \u201cTRG\u201d column. In fact, | ||
87 | it should be synchronized with a spark plug but actually, it can be a | 87 | it should be synchronized with a spark plug but actually, it can be a | ||
88 | delay between the trigger signal and spark actuation. Even, it might | 88 | delay between the trigger signal and spark actuation. Even, it might | ||
89 | be no ignition phenomena. \r\nNext lines give the signal value for | 89 | be no ignition phenomena. \r\nNext lines give the signal value for | ||
90 | each sensor versus time (in first column).\r\nWMF:\r\nThe original | 90 | each sensor versus time (in first column).\r\nWMF:\r\nThe original | ||
91 | results are also presented in graphic form as so called distance | 91 | results are also presented in graphic form as so called distance | ||
92 | \u0096 time diagrams. The diagram for each test reads as | 92 | \u0096 time diagrams. The diagram for each test reads as | ||
93 | follows:\r\nPT0-24-long-RT.wmf\r\nWith the same meaning as for the raw | 93 | follows:\r\nPT0-24-long-RT.wmf\r\nWith the same meaning as for the raw | ||
94 | data file with an additional index \u0093long\u0094 or | 94 | data file with an additional index \u0093long\u0094 or | ||
95 | \u0093short\u0094 according to captured registration time and prefix | 95 | \u0093short\u0094 according to captured registration time and prefix | ||
96 | RT means distance (radius) \u0096 time diagram. WMF means the Windows | 96 | RT means distance (radius) \u0096 time diagram. WMF means the Windows | ||
97 | Meta File format. This number corresponds to the test PT0-24 for | 97 | Meta File format. This number corresponds to the test PT0-24 for | ||
98 | smooth tube with blockage BR = 0% at ambient temperature wth hydrogen | 98 | smooth tube with blockage BR = 0% at ambient temperature wth hydrogen | ||
99 | concentration 15.2%. The distance-time diagram shows pressure - and | 99 | concentration 15.2%. The distance-time diagram shows pressure - and | ||
100 | photodiode signals - time histories (horizontal axis, t in seconds) | 100 | photodiode signals - time histories (horizontal axis, t in seconds) | ||
101 | placed vertically in accordance with the real position in a tube | 101 | placed vertically in accordance with the real position in a tube | ||
102 | (vertical axis, X in m). The pink line goes through the points | 102 | (vertical axis, X in m). The pink line goes through the points | ||
103 | corresponding to the flame arrival time based on photodiode signals | 103 | corresponding to the flame arrival time based on photodiode signals | ||
104 | (blue lines). The slope dX/dt of the flame trajectory in X-t | 104 | (blue lines). The slope dX/dt of the flame trajectory in X-t | ||
105 | coordinates is the flame velocity Uf.", | 105 | coordinates is the flame velocity Uf.", | ||
106 | "num_resources": 0, | 106 | "num_resources": 0, | ||
107 | "num_tags": 4, | 107 | "num_tags": 4, | ||
108 | "orcid": "", | 108 | "orcid": "", | ||
109 | "organization": { | 109 | "organization": { | ||
110 | "approval_status": "approved", | 110 | "approval_status": "approved", | ||
111 | "created": "2023-01-12T13:30:23.238233", | 111 | "created": "2023-01-12T13:30:23.238233", | ||
112 | "description": "RADAR (Research Data Repository) is a | 112 | "description": "RADAR (Research Data Repository) is a | ||
113 | cross-disciplinary repository for archiving and publishing research | 113 | cross-disciplinary repository for archiving and publishing research | ||
114 | data from completed scientific studies and projects. The focus is on | 114 | data from completed scientific studies and projects. The focus is on | ||
115 | research data from subjects that do not yet have their own | 115 | research data from subjects that do not yet have their own | ||
116 | discipline-specific infrastructures for research data management. ", | 116 | discipline-specific infrastructures for research data management. ", | ||
117 | "id": "013c89a9-383c-4200-8baa-0f78bf1d91f9", | 117 | "id": "013c89a9-383c-4200-8baa-0f78bf1d91f9", | ||
118 | "image_url": "radar-logo.svg", | 118 | "image_url": "radar-logo.svg", | ||
119 | "is_organization": true, | 119 | "is_organization": true, | ||
120 | "name": "radar", | 120 | "name": "radar", | ||
121 | "state": "active", | 121 | "state": "active", | ||
122 | "title": "RADAR", | 122 | "title": "RADAR", | ||
123 | "type": "organization" | 123 | "type": "organization" | ||
124 | }, | 124 | }, | ||
125 | "owner_org": "013c89a9-383c-4200-8baa-0f78bf1d91f9", | 125 | "owner_org": "013c89a9-383c-4200-8baa-0f78bf1d91f9", | ||
126 | "private": false, | 126 | "private": false, | ||
127 | "production_year": "2021", | 127 | "production_year": "2021", | ||
128 | "publication_year": "2023", | 128 | "publication_year": "2023", | ||
129 | "publishers": [ | 129 | "publishers": [ | ||
130 | { | 130 | { | ||
131 | "publisher": "Karlsruhe Institute of Technology" | 131 | "publisher": "Karlsruhe Institute of Technology" | ||
132 | } | 132 | } | ||
133 | ], | 133 | ], | ||
134 | "relationships_as_object": [], | 134 | "relationships_as_object": [], | ||
135 | "relationships_as_subject": [], | 135 | "relationships_as_subject": [], | ||
136 | "repository_name": "RADAR (Research Data Repository)", | 136 | "repository_name": "RADAR (Research Data Repository)", | ||
137 | "resources": [], | 137 | "resources": [], | ||
138 | "services_used_list": "", | 138 | "services_used_list": "", | ||
139 | "source_metadata_created": "2023", | 139 | "source_metadata_created": "2023", | ||
140 | "source_metadata_modified": "", | 140 | "source_metadata_modified": "", | ||
141 | "state": "active", | 141 | "state": "active", | ||
142 | "subject_areas": [ | 142 | "subject_areas": [ | ||
143 | { | 143 | { | ||
144 | "subject_area_additional": "", | 144 | "subject_area_additional": "", | ||
145 | "subject_area_name": "Engineering" | 145 | "subject_area_name": "Engineering" | ||
146 | } | 146 | } | ||
147 | ], | 147 | ], | ||
148 | "tags": [ | 148 | "tags": [ | ||
149 | { | 149 | { | ||
150 | "display_name": "combustion tube", | 150 | "display_name": "combustion tube", | ||
151 | "id": "5216cdc9-093c-4539-a93a-83543e2bb1ad", | 151 | "id": "5216cdc9-093c-4539-a93a-83543e2bb1ad", | ||
152 | "name": "combustion tube", | 152 | "name": "combustion tube", | ||
153 | "state": "active", | 153 | "state": "active", | ||
154 | "vocabulary_id": null | 154 | "vocabulary_id": null | ||
155 | }, | 155 | }, | ||
156 | { | 156 | { | ||
157 | "display_name": "cryogenic temperatures", | 157 | "display_name": "cryogenic temperatures", | ||
158 | "id": "9fdf5532-9edc-4302-8dfc-c681d2bef8bb", | 158 | "id": "9fdf5532-9edc-4302-8dfc-c681d2bef8bb", | ||
159 | "name": "cryogenic temperatures", | 159 | "name": "cryogenic temperatures", | ||
160 | "state": "active", | 160 | "state": "active", | ||
161 | "vocabulary_id": null | 161 | "vocabulary_id": null | ||
162 | }, | 162 | }, | ||
163 | { | 163 | { | ||
164 | "display_name": "flame propagation regimes", | 164 | "display_name": "flame propagation regimes", | ||
165 | "id": "de6dc995-1eb5-48d6-a9c8-69b8cbadf0f3", | 165 | "id": "de6dc995-1eb5-48d6-a9c8-69b8cbadf0f3", | ||
166 | "name": "flame propagation regimes", | 166 | "name": "flame propagation regimes", | ||
167 | "state": "active", | 167 | "state": "active", | ||
168 | "vocabulary_id": null | 168 | "vocabulary_id": null | ||
169 | }, | 169 | }, | ||
170 | { | 170 | { | ||
171 | "display_name": "hydrogen", | 171 | "display_name": "hydrogen", | ||
172 | "id": "44f9064f-7eca-426f-afc4-ed9519c90baf", | 172 | "id": "44f9064f-7eca-426f-afc4-ed9519c90baf", | ||
173 | "name": "hydrogen", | 173 | "name": "hydrogen", | ||
174 | "state": "active", | 174 | "state": "active", | ||
175 | "vocabulary_id": null | 175 | "vocabulary_id": null | ||
176 | } | 176 | } | ||
177 | ], | 177 | ], | ||
178 | "title": "Flame propagation regimes \u00a0at cryogenic temperature", | 178 | "title": "Flame propagation regimes \u00a0at cryogenic temperature", | ||
179 | "type": "vdataset", | 179 | "type": "vdataset", | ||
180 | "url": "https://doi.org/10.35097/1478" | 180 | "url": "https://doi.org/10.35097/1478" | ||
181 | } | 181 | } |