Allan Emrén, PhD

Managing director of Nuchem Research AB

Tel. +46 (0)708 11 88 36
e-mail: allan@nuchem.se

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My wife, and I when we visited Salzburg during a vacation.

Research activities

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One of my hobbies: our aircraft

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In August 1999 we went with the aircraft to France in order to look at the total solar eclipse. The weather was cloudy, but we were able to climb above the clouds into clear air, where it looked like above.

Free stuff for you:

Software for aviation purposes.
Other files will be added soon.

Info about my wife, Ingegerd.
She is a pediatrician (children's doctor).
A high soprano and member of at two choirs, Hemsjökören and Falbygdens Oratoriekör. Besides that temporary member of choirs and song groups.
She is an excellent piano player.
Besides that she is interested in amateur theatre, riding, swimming, aquarel painting and travelling.

Info about the aircraft
Type: Pierre Robin 100/210. Perhaps the best fixed gear four seater ever built.

Number of seats: 4
Max take off weight: 1250 kg, Max landing weigth: 1185 kg
Built 1974 in France
Engine: Continental IO360H, 210 hp, max 2800 RPM
Propeller: MC Cauley Constant speed.
Total time 2235 hours

Cruising speed (75% power) 140 knots (161 mph or 260 km/h)
Cruising speed (65% power) 130 knots (150 mph or 240 km/h)
Endurance (75% power): 10 hours
Endurance (65% power): 12 hours

The legal range is limited by the requirement for 45 minutes reserves.
Max legal range (75% power): 1295 nm (1500 miles or 2400 km)
Max range with reserves (65% power): 1460 nm (1700 miles or 2700 km)

Max side wind component: 22 knots
Stall speed clean 68 knots (78 mph or 125 km/h)
Stall speed landing config, full flaps 57 knots (66 mph or 105 km/h)

Equipment
Double NAV/COM with VOR/ILS, ADF, DME, X-ponder mode C, GPS.
Autopilot coupled to VOR/ILS.

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Info about myself.
Research:
My critical view on the scientific publication system

Geochemical modelling
AutoPHREEQE Finds equilibrium in water / solid systems
CRACKER Simulates water flowing through a fracture and reacting chemically with the walls
Thermodynamics and kinetics
Consequences of detailed balancing
Negative pressures
MECMODEL Fast Molecular Dynamics simulation method using energy and momentum conservation to solve Newton's eqns.

Some publications

Teaching:
Development of hyper text tools for teaching
CHEMBOND A tool demostrating elematary quantum mechanics and covalent bonds
ACIDRAIN A tool for teaching chemical equilibrium

Other:
Member of the Museum coordination group of the Swedish Chemistry Society.

Activities during my spare time:
Stock market: President and board member of RENIN AB, an investment company.

Song: Tenor. Member of the following choirs and song groups: Hemsjökören, Falbygdens Oratoriekör, and the Lerum Operett Association.
I am president of Lerums Operettsällskap (The Lerum Comic Opera Assosiation) . Besides that temporary member of other song groups.

When my mother died in 2006, I wrote a song to the memory her.

Other interests: Travelling, astronomy as well as the connection between science and theology.

Church host in the Hemsjö Church.