Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes
Hot water drilling systems are suitable for applications in which the objective is to gain rapid access to a glacier, ice sheet or ice shelf for seismic shooting, installing temperature sensors, access hole studies or retrieving stuck core drills. The Ross Ice Shelf Project (RISP) hot water drilling...
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ftdtic:ADP004815 2023-05-15T13:41:11+02:00 Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes Koci, Bruce R NEBRASKA UNIV LINCOLN 1984-12 text/html http://www.dtic.mil/docs/citations/ADP004815 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP004815 en eng http://www.dtic.mil/docs/citations/ADP004815 Approved for public release; distribution is unlimited. DTIC AND NTIS Machinery and Tools *DRILLING MACHINES ANTARCTIC REGIONS BOILERS BOREHOLES DRILLING FREEZING HEAT EXCHANGERS HOT WATER ICE RATES ICE SHELVES ROSS ICE SHELF FIRN SNOW COMPONENT REPORTS Text 1984 ftdtic 2016-02-23T09:50:28Z Hot water drilling systems are suitable for applications in which the objective is to gain rapid access to a glacier, ice sheet or ice shelf for seismic shooting, installing temperature sensors, access hole studies or retrieving stuck core drills. The Ross Ice Shelf Project (RISP) hot water drilling at J-9 showed that the decrease in water temperature at the nozzle was 1 C/30 m (1.8 F/100 ft) or depth. The boiler was rated at 2.5 million watts. It produced 320 l/m of water heated from 2 C to 98 C (1.75 million watts). The success of a smaller hot water system (150 kW) used by PICO in 1979-80 at Dome C, Antarctica, in ambient temperatures of -40 C illustrated the speed and reliability possible under extreme environmental conditions. This article is from 'Proceedings of the International Workshop/Symposium on Ice Drilling Technology (2nd) Held at Calgary, Alberta, Canada on 30-31 August 1982,' ADA156733, p101-103. Text Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ice Shelves Ross Ice Shelf Defense Technical Information Center: DTIC Technical Reports database Antarctic Canada Nozzle ENVELOPE(159.100,159.100,-79.917,-79.917) Ross Ice Shelf The Nozzle ENVELOPE(159.100,159.100,-79.917,-79.917) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Machinery and Tools *DRILLING MACHINES ANTARCTIC REGIONS BOILERS BOREHOLES DRILLING FREEZING HEAT EXCHANGERS HOT WATER ICE RATES ICE SHELVES ROSS ICE SHELF FIRN SNOW COMPONENT REPORTS |
spellingShingle |
Machinery and Tools *DRILLING MACHINES ANTARCTIC REGIONS BOILERS BOREHOLES DRILLING FREEZING HEAT EXCHANGERS HOT WATER ICE RATES ICE SHELVES ROSS ICE SHELF FIRN SNOW COMPONENT REPORTS Koci, Bruce R Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes |
topic_facet |
Machinery and Tools *DRILLING MACHINES ANTARCTIC REGIONS BOILERS BOREHOLES DRILLING FREEZING HEAT EXCHANGERS HOT WATER ICE RATES ICE SHELVES ROSS ICE SHELF FIRN SNOW COMPONENT REPORTS |
description |
Hot water drilling systems are suitable for applications in which the objective is to gain rapid access to a glacier, ice sheet or ice shelf for seismic shooting, installing temperature sensors, access hole studies or retrieving stuck core drills. The Ross Ice Shelf Project (RISP) hot water drilling at J-9 showed that the decrease in water temperature at the nozzle was 1 C/30 m (1.8 F/100 ft) or depth. The boiler was rated at 2.5 million watts. It produced 320 l/m of water heated from 2 C to 98 C (1.75 million watts). The success of a smaller hot water system (150 kW) used by PICO in 1979-80 at Dome C, Antarctica, in ambient temperatures of -40 C illustrated the speed and reliability possible under extreme environmental conditions. This article is from 'Proceedings of the International Workshop/Symposium on Ice Drilling Technology (2nd) Held at Calgary, Alberta, Canada on 30-31 August 1982,' ADA156733, p101-103. |
author2 |
NEBRASKA UNIV LINCOLN |
format |
Text |
author |
Koci, Bruce R |
author_facet |
Koci, Bruce R |
author_sort |
Koci, Bruce R |
title |
Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes |
title_short |
Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes |
title_full |
Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes |
title_fullStr |
Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes |
title_full_unstemmed |
Hot Water Drilling in Antarctic Firn, and Freezing Rates in Water-Filled Boreholes |
title_sort |
hot water drilling in antarctic firn, and freezing rates in water-filled boreholes |
publishDate |
1984 |
url |
http://www.dtic.mil/docs/citations/ADP004815 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP004815 |
long_lat |
ENVELOPE(159.100,159.100,-79.917,-79.917) ENVELOPE(159.100,159.100,-79.917,-79.917) |
geographic |
Antarctic Canada Nozzle Ross Ice Shelf The Nozzle |
geographic_facet |
Antarctic Canada Nozzle Ross Ice Shelf The Nozzle |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ice Shelves Ross Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ice Shelves Ross Ice Shelf |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP004815 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766146609371938816 |