Inge Håvard Rekstad
Om
POSITION Senior Engineer
COMPANY NTNU - Department of Energy and Process Engineering.
EDUCATION Engineer (B.Sc.), Mechanical Engineering, Oslo teknisk-maritime skole 1982.
Additional education:
Master level:
Heat Pumps for Heating/Cooling of Buildings TEP 4260, NTNU.
Refrigeration Engineering in the Process Industry, NTH.
Calculus with linear algebra part A, NTH.
Calculus with linear algebra part B, NTH.
Refrigeration Engineering, Fundamental Process and Systems,
EEU at the Norwegian Institute of Technology, NTH.
Engineering Thermodynamics 1, NTH.
Courses attended:
F-gas certification with exam.
Course basic EX-installations, SIEMENS.
HTML programming, introduction course at NTNU.
PASCAL programming, NTH 1985.
Ingres for Application Developers, INENCO.
Negotiation technique, course at AMY consults.
EXPERIENCE
2012-2016 Norsk Kjøleteknisk Forening board member.
2010- 2014 Responsible (College lecturer) for teaching 3rd year bachelor education, course “Kulde- og varmepumpeteknikk”, HiST.
2008- Part time teaching in courses “Using CO2 as refrigerant” at NAVITAS
2006-2009 Exercise supervisor in NTNU course TEP4255 Heat Pumping Processes and Systems
2006- Senior Engineer. Department of Energy and Process Engineering. Norwegian University of Science and Technology, NTNU.
1996- 2006 Section Engineer at NTNU, Department of Refrigeration and Air –Conditioning. Norwegian University of Science and Technology, NTNU.
1983- Part time position at SINTEF Energy Research, Energy Processes.
1983- 1996 Engineer/Laboratory Assistant at NTH, Department of Refrigeration Engineering.
MAIN FIELDS OF COMPETENCE.
Refrigeration and heat pump engineering and system design.
Experimental Laboratory work.
Computer aided drawing (Autodesk AutoCad and Inventor 3D)
FEM simulation (Inventor, Algor, Ansys, QuickField)
INTERNATIONAL PUBLICATIONS WITH REFEREE.
Bahareh Khosravi, Sigurd W. Løvseth, Anders Austegard, Caroline Einen, H. G. Jacob Stang, Ingrid Snustad, Jana P. Jakobsen, Inge Håvard Rekstad. A new facility on accurate viscosity and density measurements. The 11th Trondheim Conference on CO2 Capture, Transport and Storage. 21 - 23 June 2021
Li, Yantong; Nord, Natasa; Rekstad, Inge Håvard; Skånøy, Stein Kristian; Sørensen, Lars Konrad. (2021). Experimental analysis of discharge pressure control of a water-source CO2 heat pump for residential use. Cold Climate HVAC & Energy 2021, Tallinn Estonia 20-21 April 2021
Li, Yantong; Nord, Natasa; Rekstad, Inge Håvard; Skånøy, Stein Kristian; Sørensen, Lars Konrad. (2021). Study of a water-source CO2 heat pump for residential use: experimental discharge pressure control and performance analysis. Cold Climate HVAC & Energy 2021, Tallinn Estonia 20-21 April 2021
Rekstad, Inge Håvard; Ladam, Yves. (2016) Evaluation of different evaporator and condenser concepts in a sea water chiller using CO2 as refrigerant. 12th IIR Gustav Lorentzen Conference on Natural Refrigerants. GL2016 Proceedings. ISBN 9782362150180. s
Inge Håvard REKSTAD, Trygve M. EIKEVIK, Sigmund JENSSEN. Dimple Plate Heat Exchangers for a Sea-water Chiller using CO2 as Refrigerant, Design and Testing. The 24th International Congress of Refrigeration, Yokohama, Japan, August 2015. ISBN 978-2-36215-012-8. ISSN 125-9031
H.G. Jacob Stang, Sigurd W. Løvseth, Sigmund Ø. Størset, Bjarne Malvik, Håvard Rekstad. Accurate Measurements of CO2 Rich Mixture Phase Equilibria Relevant for CCS Transport and Conditioning.Energy Procedia, Volume 37, 2013, Pages 2897-2903
Snorre F. Westman, H. G. Jacob Stang, Sigmund Ø. Størset, Håvard Rekstad, Anders Austegard, Sigurd W. Løvseth. Accurate phase equilibrium measurements of CO2 mixtures. 7th Trondheim CCS Conference, TCCS-7, June 5-6 2013, Trondheim, Norway.
Håvard Rekstad, Armin Hafner and Sigmund Jenssen Eficiencia energética de un refrigerador y un calentador de agua que utilizan dióxido de carbono como refrigerante en una vaquería. Frio-Calor Aire Acondicionado NO 458 Mai 2013 page22-28. ISSN 0210-0665
H. G. Jacob Stang, Sigurd W. Løvseth, Sigmund Ø. Størset, Bjarne Malvik, Håvard Rekstad. Accurate measurements of CO2 rich mixture phase equilibria relevant for CCS transport and conditioning. GHGT11 18th-22nd November 2012, Kyoto International Conference Center, Japan
Håvard Rekstad, Armin Hafner and Sigmund Jenssen Energy Efficient Dairy Shed Milk Cooler and Water heater using Carbon Dioxide as Refrigerant.. 10th IIR Gustav Lorentzen Conference on Natural Working Fluids, June 25-27, 2012, Delft, The Netherlands. ISBN 978-2-913149-90-8 ISSN 0151.1637
Armin Hafner, Cristian Schmälzle, Petter Nekså, Frank Obrist, Håvard Rekstad. High efficient 100 kWel R744 compressor. 10th IIR Gustav Lorentzen Conference on Natural Working Fluids, June 25-27, 2012, Delft, The Netherlands. ISBN 978-2-913149-90-8 ISSN 0151.1637
Andresen T.,Ladam, Y., Gilberg A.F, Rekstad H., Eikevik T.M. Improving Energy Efficiency in Operation of CO2 RSW System for Fishing Vessels. 23rd International Congress of Refrigeration. Prague Czech, August 22-28, 2011. ISBN 978-2-913149-89-2.
Rekstad H., Sætrang S., Eikevik T., Ladam Y. Evaluation of a variable suction gas heat exchanger in a liquid chiller system using carbon dioxide as refrigerant. 9th IIR Gustav Lorentzen Conference on Natural Working Fluids, September 7-10, 2010, Sydney Australia. ISBN 978-2-913149-74-8 ISSN 0151.1637
H.Rekstad , T. Skiple, G. Skaugen, P. Nekså. Liquid Chiller using Carbon Dioxide in a Transcritical Process. 8th IIR Gustav Lorentzen Conference on Natural Working Fluids, September 7-10, 2008, Copenhagen Denmark. ISBN 978-2-913149-63-2 ISSN 0151.1637
Arne Jakobsen, Håvard Rekstad (Presenter), Geir Skaugen, Trygve Eikevik, Petter Nekså. Prototype Liquid Chiller using Carbon Dioxide as Refrigerant. The 22nd International Congress of Refrigeration, Bejing China, August 21-26 2007 ISBN 978-2-913149-59-5 (Keynote speech)
Håvard Rekstad, Petter Nekså, Giacomo Pisano. Measurements on a Two-Stage CO2-Compressor. 6th Gustav Lorentzen Natural Working Fluids Conference, Glasgow UK, 29th Aug - 1st Sept 2004
Zakeri, G.R., Nekså, P., Rekstad, H., Lang-Ree, K and Olsen, T.: Results and experiences with the first commercial pilot plant CO2 heat pump water heater. 4th IIR-Gustav Lorentzen Conference on Natural Working Fluids, Purdue, USA, July 25-28, 2000
Nekså, P., Dorin, F., Rekstad, H. and Bredesen, A.: Development of two-stage semi-hermetic CO2-compressors, 4th IIR-Gustav Lorentzen Conference on Natural Working Fluids, Purdue, USA, July 25-28, 2000
Nekså, P., Dorin, F., Rekstad, H., Bredesen, A.M., Serbisse, A. (1999) Development of Semi-hermetic CO2-Compressors, 20th International Congress of Refrigeration, IIR/IIF, Sydney
Pettersen, J., Hafner, A., Skaugen G., Rekstad, H. Development of compact heat exchangers for CO2 air-conditioning systems. International Journal of Refrigeration, Vol 21, No 3, pp. 180-193, 1998
Nekså, P., Rekstad, H., Zakeri, G.R. and Schiefloe, P.A.: CO2 – heat pump water heater: characteristics, system design and experimental results, Int. J. Refrig. Vol. 21, No. 3, pp. 172-179, 1998
Pettersen, J., Nekså, P., Nesje, O.M., Schiefloe, P.A. og Rekstad, H.: Recent Advances in CO2 Refrigeration. Presentation at "19th International Congress of Refrigeration", den Haag, Nederland, 20.-25. august 1995. IIR/IIF. Proceedings bind 4B, side 961-968. ISBN 2-903-633-79-7.
Pettersen,J., Rekstad, H. The practical performance of R-134a in motorcar Air-conditioning, XVIIIth International Congress of Refrigeration, Proceedings Vol III, pp1155-1160, 1991
OTHER INTERNATIONAL PUBLICATIONS.
Armin Hafner, Cristian Schmälzle, Petter Nekså, Frank Obrist, Håvard Rekstad. Hocheffizienter 380CC R744 Verdichter. Deutsche Kälte-Klima Tagung Würzburg Germany. Nov.21-23 2012.
Håvard Rekstad, Arne Jakobsen, Geir Skaugen,Trygve Eikevik, Petter Nekså. Prototype Liquid Chiller Using Transcritical CO2 cycle. CDIG-conference Stockholm 2008.
Håvard Rekstad. Prototype Liquid Chiller using Transcritical CO2 Cycle. International Symposium on Environment, Energy, and Materials. Organized by Kyoto International Forum for Environment and Energy (KIFEE) 2007
Petter Nekså, Filippo Dorin, Håvard Rekstad, Arne M. Bredesen: Measurements and Experience on semi-hermetic CO2 compressors. The 4th International Conference on Compressors and Coolants, Compressor 2001, Smolensk Slovakia, 26-28 september.
Nekså, P., Dorin, F., Rekstad H. and Bredesen, A.M. (2001): Measurements and Experience on Semi-Hermetic CO2 Compressors, 16. Nordic Refrigeration Meeting – 9. Nordic Heat Pump Meeting, Aug. 29, Copenhagen, Denmark
Nekså, P., Rekstad, H., Zakeri, G. R., Schiefloe, P. A. and Svensson, M. C. (1999). Heat Pumps for Water Heaters with CO2 as Working Fluid. 6th International Energy Agency Heat Pump Conference, May 31-June 2, Berlin, Germany
Nekså, P., Rekstad, H., Zakeri, G. R., Schiefloe, P. A. and Svensson, M. C. (1999). Commercial Heat Pumps for Water Heating and Heat Recovery. CO2 Technology in Refrigeration, Heat Pump and Air Conditioning Systems, Mainz, Germany.
Nekså, P., Rekstad, H. and Zakeri, G.R.: CO2 Prototype Hot Water Heat Pump. Characteristics, System Design and Experimental Results. IIR conference “Heat Pump Systems, Energy Efficiency and Global Warming”, Linz, Austria, 28.09-01.10.97.
Nekså, P., Rekstad, H., Fagerli, B.: CO2 varmepumpe for tappevannsvarming – forsøksresultater, 15. Nordiske Kjølemøte og 8. Nordiske Varmepumpedager, Reykavik, Island, 18-21 juni, 1997
Nekså, P., Rekstad, H.: CO2 Heat Pump Prototype System - Experimental Results. IEA/IIR Workshop on CO2 Technologies in Refrigeration, Air Conditioning and Heat Pump Systems. Trondheim, Norway, May 13-14, 1997.
Optimisation of dry expansion air cooler. XVII. Internationaler Kongress für Kältetechnik, Commission. B.1.5
NATIONAL PUBLICATIONS AND PRESENTATIONS.
Haukås, Hans T.; Stene, Jørn; Rekstad, Inge Håvard; Nekså, Petter; Hafner, Armin; Eikevik, Trygve Magne. CO2 (R744) som kuldemedium. Postboks 2312 Solli, 0201 Oslo: Norsk Kjøleteknisk Forening c/o Tekna, 2016. Kompendium. 90 s. NTNU.
Yves Ladam, Håvard Rekstad. CO2 RSW på fiskebåt. Fra forskning til kommersielt anlegg. Kulde og varmepumper nr. 3 (2012)
Rekstad H. CO2 Heat Pumping Technology. From reinvention to millon dollar industry. Lecture ”Centre for renewable energy” http://www.sffe.no/colloquia/index.php?var1=33&isOld=1(2009)
Rekstad H. et al. Chillere med CO2 (RSW). Norsk Kjøleteknisk årsmøte, Ålesund. (2009)
Håvard Rekstad, Petter Nekså. Smøremidler for CO2 anlegg. Norsk Kjøleteknisk Forening. Kveldsmøte Oslo 1. november 2007.
CO2-varmepumpe for tappevannsberedning. Norsk VVS 5/97.
Nekså, P., Rekstad, H. og Fagerli, B.: "CO2-varmepumpe for tappevannsberedning. Norske løsninger med CO2-praktiske resultater". Foredrag ved Norsk Kuldedager '97. Info-Rama Senteret, Sandvika. 26. februar - 1. mars, 1997.
Brendeng E., Rekstad H: Kuldemedieregulering for tørrfordampere, SCANREF 5/85.
Other.
Refrigerant control in dry evaporators, Scan Ref 1989
Garantiprøve på luftkjøleanlegg ved Rjukan fabrikker for Norsk Hydro, NTH
Fordamper for kjølereol, NTH.
Måling av varmegjennomgangstall på luftkjøler ved pulserende væsketilførsel, NTH, 2 rapporter.
Tørrfordampere, innledende forsøk, NTH, 3 rapporter.
SINTEF report, DA1103.1-86/2,
Luftkjølere for tørrfordampning. Riktig rørlengde nødvendig for god ytelse
Kuldemedieregulering for tørrfordampere, Norsk kjøleteknisk møte.
SINTEF report, STF11 F89076. R-744 Automotive Air Conditioner. Preliminary design and performance estimation.
Innføring i AutoCad, Datakurs for 4.årskurs SVK, NTH.
SINTEF report, STF11 F90066.
SINTEF report, STF11 F91079. Evaluation of two MAC-2000 compressor concepts.
SINTEF report, STF11 F91071. MAC –2000 Laboratory Prototype Investigations 1991
SINTEF report, STF11 F92065. Development and testing of MAC-2000 Simulation program ”MACSIM”
SINTEF report, STF11 F93008. Testing of oval tube condenser.
SINTEF report, STF84 F96312, Performance Testing of CO2 A/C System
SINTEF report STF84 F97333, Testing of CO2 refrigeration system in display cabinet for commercial refrigeration.
SINTEF report. TR F4788 Redesign of the valves to a semi-hermetic CO2 compressor
(1999). SINTEF report. TR F5074. Measurements on semi-hermetic pre-series CO2 compressors.
(1999). SINTEF report. TR F5097. Water Shedding Characteristics of Heat Exchangers with Flat Micro channel Tubes and Varying Fin-design.
(1999) Energy efficient and environmental friendly heat pumping systems using CO2 as working fluid COHEPS
Work Package 11: Prototype system design and construction. Final Report 01/99, Chapter 1:
Final Report of WP12: Prototype System Testing, Section 1: Dr.Ing. G. Reza Zakeri, Dr.Ing. Petter Nekså and Eng. Håvard Rekstad
(2000). SINTEF report. TR F5282. Testing of residential air conditioning systems. H.Rekstad, J.Pettersen.
(2001). SINTEF report TRF5563. Development of a 2-stage, 2900 RPM, CO2 compressor, Part 1. Håvard Rekstad, Petter Nekså, Arne M. Bredesen.
(2001). SINTEF report TRF5426. CO2 as refrigerant in beverage coolers, initial evaluation. Geir Skaugen, Håvard Rekstad, Petter Nekså, Jostein Pettersen and Kåre Aflekt
(2002). SINTEF report TRF5738. CO2 as refrigerant in beverage coolers, Evaluation and prototype testing. Geir Skaugen, Håvard Rekstad, Petter Nekså, Munan Elgsæther
(2002). SINTEF report TRF5686. Testing and evaluation of a condensing unit in a residential air conditioning system. Håvard Rekstad, Jostein Pettersen, Petter Nekså.
(2002). SINTEF report TRF5701. Design and testing of a new hermetic reciprocating compressor with CO2 . Håvard Rekstad, Petter Nekså, Arne M. Bredesen
(2002). SINTEF report TRF5717. Testing and evaluation of CO2 compressors for the NBC project. Item 2. Compressor tests at SINTEF. Håvard Rekstad, Petter Nekså,
(2002). SINTEF report TRF5730. Testing and evaluation of CO2 compressors for the NBC project. Item 2. Compressor tests at SINTEF, Extended tests. Håvard Rekstad.
(2003) SINTEF report TRF5806 Design and testing of a new hermetic reciprocating compressor working with CO2. Prototype operating temperature limit tests. Håvard Rekstad
(2003) SINTEF report TRF5852. Termisk test av vanntank. Håvard Rekstad.
(2003) SINTEF report TRF5888. Technical specifications of CO2-compressor test rig. Håvard Rekstad
(2003) SINTEF report TRF5912. Laboratory testing of small tube condensers. Håvard Rekstad, Gunnar Lohse, Geir Skaugen, Harald S. Mæhlum
(2004) SINTEF report TRF5928 Design and testing of a new hermetic reciprocating compressor working with CO2. Sub project: Compressor life testing, 200h - prototype 2. Håvard Rekstad
(2004) SINTEF memo. CO2-compressor testing and valve simulation. Preliminary simulation results. Revision 1. Håvard Rekstad
(2005) SINTEF report TRF 6174. Bestemmelse av frysepunkt til natrium-/ magnesiumklorid løsninger. Håvard Rekstad, Vidar Hardarson.
(2005) SINTEF report TRF xxxx. Pilot plant for small-scale LNG production. Einar Brendeng,Petter Nekså, Helge J Johansen, Håvard Rekstad. ISBN 82-594-2270-0
(2005) SINTEF report F 6218. 2-D Simulation of heat Flow in a perlite Filled Plywoodbox with Argon and Nitrogen Atmosphere. Harald S. Mæhlum; Helge J. Johansen; Håvard Rekstad
(2006) SINTEF report TR xxxx . CO2 technology transfer. Torgeir Skiple, Håvard Rekstad & Armin Hafner
(2006) SINTEF report TRF 6455. Utvikling av CO2 kjølesystem for gårdstank med indirekte krets for varmeopptak. Arne Jakobsen, Håvard Rekstad & Kåre Aflekt
(2006) SINTEF report TRF 6478. Initial testing of small CO2 Heat Pump Water Heater for residents.
Arne Jakobsen, Jørn Stene & Håvard Rekstad
(2006) SINTEF report TR. Development of a prototype RSW system using CO2 as refrigerant.
Arne Jakobsen, Geir Skaugen, Håvard Rekstad & Petter Nekså
(2006) Member of the 7th IIR Gustav Lorentzen Conference Scientific Committee, paper review.
(2008) NAVITAS kurs. Grunnleggende, VG1 og VG2. CO2 som kuldemedium.
(2008) SINTEF report TR F6747. LNG Heat Exchanger Test Plant Documentation. Håvard Rekstad et al.
(2010) Kompendium NTNU-fag TEP 4255 Varmepumpende prosesser og systemer. Termodynamisk grunnlag. Arne Bredesen et al.
(2011) SINTEF report TR F7049. Utvikling av CO2 kjølesystem for gårdstank med direkte krets for varmeopptak. Håvard Rekstad.
(2012) Poster. BIGCCS-CO2 Mix Project. Accurate measurements of CO2 rich mixture phase equilibria relevant for CCS transport and conditioning.
(2012) Risikovurderingsrapport. Kombinert isvannkjøler og vannvarmer med CO2 som kuldemedium.. NTNU
(2013) RSW-steg 1. Ytelsesmåling på vannkjøler med CO2 som kuldemedium. NTNU
(2013) Varmestrømberegning kabelkulvert. NTNU
Patents / Patent claims.
WO024269. Refrigerating or heat pump system with heat rejection at supercritical pressure.
WO021885. Method and arrangement for defrosting a vapor compression system.
WO021884. Reversible vapor compression system
US2004255609 (A1) Compression System for Cooling and Heating Purposes
EP1579157 (A1) Method of operation and regulation of a vapor compression system
NO2003/2343. Kjøle- eller varmepumpesystem med varmeavgivelse ved endring i temperatur.
NO2004/0781 System for kjøle- og oppvarmingsformål.
EP1458581 (A1). Vapor compression system for heating and cooling of vehicles
WO2004/057245. Improved vapor compression heat pump system
WO2009/005366. A closed circuit vapour compression refrigeration system and a method for operating the system
Publikasjoner
2022
-
Li, Yantong;
Nord, Natasa;
Halvorsen, Henrik;
Rekstad, Inge Håvard.
(2022)
Model-based sizing of a CO2 heat pump for residential use.
Sustainable Energy Technologies and Assessments
Vitenskapelig artikkel
2021
-
Li, Yantong;
Nord, Natasa;
Rekstad, Inge Håvard;
Skånøy, Stein Kristian;
Sørensen, Lars Konrad.
(2021)
Study of a water-source CO2 heat pump for residential use:
experimental discharge pressure control and performance
analysis .
E3S Web of Conferences
Vitenskapelig artikkel
-
Khosravi, Bahareh;
Løvseth, Sigurd Weidemann;
Austegard, Anders;
Einen, Caroline;
Stang, Hans Georg Jacob;
Snustad, Ingrid.
(2021)
A new facility on accurate viscosity and density measurements.
SINTEF akademisk forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2016
-
Haukås, Hans T.;
Stene, Jørn;
Rekstad, Inge Håvard;
Nekså, Petter;
Hafner, Armin;
Eikevik, Trygve Magne.
(2016)
CO2 (R744) som kuldemedium.
Norsk Kjøleteknisk Forening c/o Tekna,
Kompendium
-
Rekstad, Inge Håvard;
Ladam, Yves.
(2016)
Evaluation of different evaporator and condenser concepts in a sea water chiller using CO2 as refrigerant.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2015
-
Rekstad, Inge Håvard;
Eikevik, Trygve Magne;
Jenssen, Sigmund.
(2015)
DIMPLE PLATE HEAT EXCHANGERS FOR A SEA-WATER CHILLER
USING CO2 AS REFRIGERANT, DESIGN AND TESTING.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2014
-
Westman, Snorre Foss;
Stang, Hans Georg Jacob;
Størset, Sigmund Østtveit;
Rekstad, Inge Håvard;
Austegard, Anders;
Løvseth, Sigurd Weidemann.
(2014)
Accurate phase equilibrium measurements of CO2 mixtures.
Energy Procedia
Vitenskapelig artikkel
2013
-
Stang, Hans Georg Jacob;
Løvseth, Sigurd Weidemann;
Størset, Sigmund Østtveit;
Malvik, Bjarne;
Rekstad, Inge Håvard.
(2013)
Accurate measurements of CO2 rich mixture phase equilibria relevant for CCS transport and conditioning.
Energy Procedia
Vitenskapelig artikkel
-
Rekstad, Inge Håvard;
Hafner, Armin;
Sigmund, Jenssen.
(2013)
Eficiencia Energetica de un Refrigerador y un Calentador de Agua Que Utilizan Dioxido de Carbono Como Refrigerante en una Vaqueria.
Frio, Calor y Aire Acondicionado
Vitenskapelig artikkel
2012
-
Rekstad, Inge Håvard;
Hafner, Armin;
Jenssen, Sigmund.
(2012)
Energy efficient diary shed milk cooler and water heater using carbon dioxide as refrigerant.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hafner, Armin;
Schmälzle, Christian;
Nekså, Petter;
Obrist, Frank;
Rekstad, Inge Håvard.
(2012)
High efficient 100 kW elR744 compressor.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Ladam, Yves;
Rekstad, Inge Håvard.
(2012)
CO2 RSW på fiskebåt.
Kulde og varmepumper
Fagartikkel
2011
-
Andresen, Trond;
Ladam, Yves;
Gilberg, Astrid Falch;
Rekstad, Inge Håvard;
Eikevik, Trygve Magne.
(2011)
IMPROVING ENERGY EFFICIENCY IN OPERATION OF CO2 RSW SYSTEM FOR FISHING VESSELS.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2010
-
Rekstad, Inge Håvard;
Eikevik, Trygve Magne;
Sætrang, Sondre;
Ladam, Yves.
(2010)
Evaluation of a variable suction gas heat exchanger in a liquid chiller system using carbon dioxide as refrigerant.
Science et technique du froid
Vitenskapelig artikkel
2007
-
Haukås, Hans Torleiv;
Stene, Jørn;
Rekstad, Inge Håvard;
Nekså, Petter (SINTEF);
Eikevik, Trygve Magne.
(2007)
Kjøle- og fryseanlegg med CO2 (R744) som kuldemedium.
NTNU
Lærebok
Tidsskriftspublikasjoner
-
Li, Yantong;
Nord, Natasa;
Halvorsen, Henrik;
Rekstad, Inge Håvard.
(2022)
Model-based sizing of a CO2 heat pump for residential use.
Sustainable Energy Technologies and Assessments
Vitenskapelig artikkel
-
Li, Yantong;
Nord, Natasa;
Rekstad, Inge Håvard;
Skånøy, Stein Kristian;
Sørensen, Lars Konrad.
(2021)
Study of a water-source CO2 heat pump for residential use:
experimental discharge pressure control and performance
analysis .
E3S Web of Conferences
Vitenskapelig artikkel
-
Westman, Snorre Foss;
Stang, Hans Georg Jacob;
Størset, Sigmund Østtveit;
Rekstad, Inge Håvard;
Austegard, Anders;
Løvseth, Sigurd Weidemann.
(2014)
Accurate phase equilibrium measurements of CO2 mixtures.
Energy Procedia
Vitenskapelig artikkel
-
Stang, Hans Georg Jacob;
Løvseth, Sigurd Weidemann;
Størset, Sigmund Østtveit;
Malvik, Bjarne;
Rekstad, Inge Håvard.
(2013)
Accurate measurements of CO2 rich mixture phase equilibria relevant for CCS transport and conditioning.
Energy Procedia
Vitenskapelig artikkel
-
Rekstad, Inge Håvard;
Hafner, Armin;
Sigmund, Jenssen.
(2013)
Eficiencia Energetica de un Refrigerador y un Calentador de Agua Que Utilizan Dioxido de Carbono Como Refrigerante en una Vaqueria.
Frio, Calor y Aire Acondicionado
Vitenskapelig artikkel
-
Ladam, Yves;
Rekstad, Inge Håvard.
(2012)
CO2 RSW på fiskebåt.
Kulde og varmepumper
Fagartikkel
-
Rekstad, Inge Håvard;
Eikevik, Trygve Magne;
Sætrang, Sondre;
Ladam, Yves.
(2010)
Evaluation of a variable suction gas heat exchanger in a liquid chiller system using carbon dioxide as refrigerant.
Science et technique du froid
Vitenskapelig artikkel
Bøker
-
Haukås, Hans Torleiv;
Stene, Jørn;
Rekstad, Inge Håvard;
Nekså, Petter (SINTEF);
Eikevik, Trygve Magne.
(2007)
Kjøle- og fryseanlegg med CO2 (R744) som kuldemedium.
NTNU
Lærebok
Del av bok/rapport
-
Khosravi, Bahareh;
Løvseth, Sigurd Weidemann;
Austegard, Anders;
Einen, Caroline;
Stang, Hans Georg Jacob;
Snustad, Ingrid.
(2021)
A new facility on accurate viscosity and density measurements.
SINTEF akademisk forlag
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Rekstad, Inge Håvard;
Ladam, Yves.
(2016)
Evaluation of different evaporator and condenser concepts in a sea water chiller using CO2 as refrigerant.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Rekstad, Inge Håvard;
Eikevik, Trygve Magne;
Jenssen, Sigmund.
(2015)
DIMPLE PLATE HEAT EXCHANGERS FOR A SEA-WATER CHILLER
USING CO2 AS REFRIGERANT, DESIGN AND TESTING.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Rekstad, Inge Håvard;
Hafner, Armin;
Jenssen, Sigmund.
(2012)
Energy efficient diary shed milk cooler and water heater using carbon dioxide as refrigerant.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hafner, Armin;
Schmälzle, Christian;
Nekså, Petter;
Obrist, Frank;
Rekstad, Inge Håvard.
(2012)
High efficient 100 kW elR744 compressor.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Andresen, Trond;
Ladam, Yves;
Gilberg, Astrid Falch;
Rekstad, Inge Håvard;
Eikevik, Trygve Magne.
(2011)
IMPROVING ENERGY EFFICIENCY IN OPERATION OF CO2 RSW SYSTEM FOR FISHING VESSELS.
International Institute of Refrigeration
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
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Haukås, Hans T.;
Stene, Jørn;
Rekstad, Inge Håvard;
Nekså, Petter;
Hafner, Armin;
Eikevik, Trygve Magne.
(2016)
CO2 (R744) som kuldemedium.
Norsk Kjøleteknisk Forening c/o Tekna,
Kompendium
Formidling
2021
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Vitenskapelig foredragLi, Yantong; Nord, Natasa; Rekstad, Inge Håvard; Skånøy, Stein Kristian; Sørensen, Lars Konrad. (2021) Effect of electronic expansion valve opening on discharge pressure of a water-source CO2 heat pump: An experimental study. International institute of refrigeration 9th Conference on Ammonia and CO2 Refrigeration Technologies , Ohrid 2021-09-16 - 2021-09-17
2016
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Vitenskapelig foredragRekstad, Inge Håvard; Ladam, Yves. (2016) Evaluation of different evaporator and condenser concepts in a sea water chiller using CO2 as refrigerant. International Institute of Refrigeration, IIR The 12th IIR Gustav Lorentzen Natural Working Fluids Conferenec , Edinburg 2016-08-21 - 2016-08-24
2013
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Vitenskapelig foredragStang, Hans Georg Jacob; Westman, Snorre Foss; Malvik, Bjarne; Størset, Sigmund Østtveit; Rekstad, Inge Håvard; Løvseth, Sigurd Weidemann. (2013) ACCURATE PHASE EQUILIBRIUM MEASUREMENTS OF CO2 MIXTURES. BIGCCS - International CCS Research Centre / SINTEF Energi TCCS-7: The 7th Trondheim Conference on CO2 Capture, Transport and Storage , Trondheim 2013-06-05 - 2013-06-06
2012
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Vitenskapelig foredragRekstad, Inge Håvard; Hafner, Armin; Jenssen, Sigmund. (2012) Energy Efficient Dairy Shed Milk Cooler and Water Heater using Carbon Dioxide as Refigerant. Royal Dutch Association of Refrigeration IIF/IIR Gustav Lorentzen Conference on Natural Refrigerants , Delft 2012-06-24 - 2012-07-27
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Vitenskapelig foredragHafner, Armin; Schmälzle, Christian; Nekså, Petter; Obrist, Frank; Rekstad, Inge Håvard. (2012) High Efficient 100 kW(el) R744 Compressor. International Institute of Refigeration (IIR) 10th IIR Gustav Lorentzen Conference on Natural Refrigerants , Delft 2012-06-24 - 2012-06-27
2011
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Vitenskapelig foredragAndresen, Trond; Ladam, Yves; Gilberg, Astrid Falch; Rekstad, Inge Håvard; Eikevik, Trygve Magne. (2011) Improving Energy Efficiency in Operation of CO2 RSW System for Fishing Vessels. International Institute of Refrigeration 23rd International Congress of Refrigeration , Prague 2011-08-22 - 2011-08-26
2010
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Vitenskapelig foredragRekstad, Inge Håvard; Eikevik, Trygve Magne; Sætrang, Sondre; Ladam, Yves. (2010) Evaluation of a variable suction gas heat exchanger in a liquid chiller system using carbon dioxide as refrigerant. Australian Institute of Refrigeration 9th IIR Gustav Lorentzen Conference 2010 , Sydney 2010-04-12 - 2010-04-14
2007
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Vitenskapelig foredragRekstad, Inge Håvard; Nekså, Petter (SINTEF). (2007) Smøremidler for CO2 anlegg. Norsk Kjøleteknisk Forening Kveldsmøte , Oslo 2007-11-01 - 2007-11-01