Resume — Hydroram AB hydraulic consultation

Hydroram AB

Bilgatan 20
S–442 40 Kungälv
Sweden
Tel: +46 731 00 28 27
Mail: ola@hydroram.se
www.hydroram.se

Summary

We use and develop programs for steady-state and transient flow. The programs are used by us and by owners of larger district heating and cooling systems. We also work in mining, black water, oil and process industry.

Examples of work

Hydraulic analyses of present or future district heating and cooling systems. Systems are “test driven” in models that show hydraulic behaviour at various operating points. Water-hammer problems are addressed with our experience. More than half of the district heating water in Sweden is in our computer models. About two thirds of the power in district cooling systems in Sweden is simulated by us.
Surge analyses (water hammer) in various systems — prevention when possible, accident investigation when needed.
Education about district heating and cooling systems. Around a thousand people have taken our courses — mostly operating staff, but also consultants from FVB, SWECO, ÅF and others.

Computer programs

We use a program package named PFC/Xram on a Linux platform. It includes PFC-SF (Pipe Flow Calculations – Steady Flow), PFC-TF (Pipe Flow Calculations – Transient Flow), and Xram.

PFC-SF/TF originate from a research project at Chalmers University of Technology about 40 years ago. Basic programming was done by Bror-Arne Gustafson. The tools were developed to calculate and simulate district heating systems, but can simulate most complex pipe systems as long as the flow can be treated as incompressible.

Xram is a shell for handling PFC-SF/TF, developed by Hydroram AB. Since 2004 the package has been owned and developed by Hydroram AB. Since 2021 the package is owned and developed by Nxity, who are building a more user-friendly and advanced shell named PFC PRO — www.pfcpro.com.

International missions

2024 Curaçao — district cooling (through Nxity)
2024 NEOM, Saudi Arabia — through Makai Ocean Engineering
2023 Sindakah, Saudi Arabia — through Makai Ocean Engineering
2020 Trondheim, Norway — pressure exchanger
2020 Sanmenxia, China — through Nxity
2020 Lake Cachuma pipeline — through Makai Ocean Engineering
2019 Datong, China — 35 km district heating system
2017 Tara Mine, Ireland — mine water (Boliden)
2017 Lusail, Qatar — 1100 MW district cooling (Marafeq)
2016 Hohhot, China — 2.3 GW district heating (through Termoekonomi)
2016 Shijiazhuang, China — 2.5 GW district heating (through Termoekonomi)
2016 Cayuga, USA — water intake (through Makai Ocean Engineering)
2015 Tara Mine, Ireland — mine water (Boliden)
2015 Odessa — sewage pumping (through Pios Ekoklar)
2014 Jinan, China — 1230 MW district heating (through Termoekonomi)
2012 Lipa Swamp, Colombia — sand/slurry system (through Flygt pumps)
2011 Lamma Island, China — sewage water (through Flygt pumps)
2011 Lusail — 1100 MW district cooling (through Capitol Cooling)
2008 Helsinki — 1000 MW waste heat from nuclear (Fortum)
2007 Amsterdam — district cooling (through FVB and Capitol Cooling)
2005 Bahrain — water intake for district cooling (through FVB/Kattner)
2003 Bandar Abbas, Iran — black water (through ABS pumps)
2001 Baltimore — district cooling (through FVB/Kattner)
1998 Windsor, Canada — district cooling (via FVB/Kattner)
1998 Riga, Latvia — district heating (through FVB)
1998 Kralkizi and Gökzu, Turkey — fresh water supply (through ABS pumps)
1998 Istanbul, Turkey — fresh water supply (through ABS pumps)
1997 Tunisia — 14 sewage pump stations (through Kvaerner Water)
1996 Chicago, USA — district cooling (via FVB)
1995 Doga, Turkey — district heating (through Gothenburg Energy International)
1992 Edmonton, Canada — district heating and cooling (through FVB)

Staff

Ola Rossing

Education: Bachelor of Science, Chalmers University of Technology (CTH).
1987–1989 Science engineer, flow machinery, CTH
1990–2003 Ola Rossing AB
2003– Hydroram AB

Gunnar Larsson

Education: PhD on dynamics of district heating systems, CTH.
1999–2001 Half-time researcher, thermo and flow dynamics, CTH
1999–2001 Half-time at Ola Rossing AB
2001–2003 Ola Rossing AB
2003– Hydroram AB

Customers producing energy

Affärsverken i Karlskrona AB
Borås Energi AB
Eksjö Energi AB
E.ON
Exergi Värme AB
Falkenberg Energi AB
Falu Energi och Vatten AB
Finspångs Tekniska Verk
Graninge Energi AB
Gävle Energi AB
Göteborg Energi AB
Halmstad Energi AB
Hitachi Energy Sweden AB
Jämtkraft AB
Jönköping Energi AB
Kalmar Energi AB
Karlshamn Energi AB
Karlskoga Energi AB
Kraftringen Energi AB
Kungälv Energi AB
Landskrona Energi AB
Lidköpings Värmeverk AB
Lundsenergikoncernen AB
Mälarenergi AB
Mölndal Energi AB
Nevel AB
Norrenergi AB
Nxity Ltd / Nxity AB
Orust Kommun
Oxelö Energi AB
Ringhals AB
Sigtuna Energi AB
Skara Energi AB
Skellefteå Kraft AB
Skövde Energi AB
Statkraft Varme AS
Söderenergi AB
Södertörns Fjärrvärme AB (SFAB)
Telge Energinät AB
Tekniska verken i Linköping
Trollhättan Energi AB
Uddevalla Energi AB
Umeå Energi AB
Vaggeryd Energi AB
Varberg Energi AB
Vattenfall Värme AB
Värmevärden AB
Västervik Miljö & Värme AB
Växjö Energi AB
Öresundskraft AB

Other customers

ABS pumps International AB
ALSA JD-Gruppen AB
Birka Teknik & Miljö AB
Bjerking AB
Boliden AB
Capitol Cooling
Chalmers University of Technology
EVT AB
Falköpings Kommun
FVB AB
Granitor / Aenigma AB
Hydroplast AB
Högskolan i Borås
Industriarmatur AB
Ingenjörsfirman Rörkraft AB
IUC Öst AB
JD-Gruppen AB
Karlstad Kommun
Leva AB
LKAB
Makai Ocean Engineering
Midroc Engineering AB
NCC Sverige AB
NXITY Beijing
Outotec AB
PL Teknik AB
Perstorp OXO AB
Port of Gothenburg
PREEM AB
Purac AB
Pöyry Sweden AB
Ramböll Sverige AB
Rejlers Sverige AB
Reng Consulting AB
Rintekno AB
SBVT AB
SEA Teknik AB
STF AB
Stockholm Vatten AB
Svensk Fjärrvärme AB
SWECO Industry AB
SwedPower AB
Södra Cell AB
Termoekonomi AB
Tyréns AB
VA-Ingenjörerna AB
VVS-Kontroll AB
ÅF AB / AFRY AB

Contact Svenska

Company resume