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2000
Week 36
Week 37
Week 38
Week 39
Week 40
Week 41
Week 42
Week 43
Week 44
Week 45
Week 46
Week 47
Week 48
Week 49
Week 50
2001
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8
Week 9
Week 10
Week 11
Week 12
Week 13
Weeks 14-20

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Installed the temperature logging equipment, and were ready to make the first tests in the field lab. We adjusted the cooling unit to maximum cooling, and were somewhat disappointed to realise that the room temperature remained at about 20 ° C. Cooling equipment is expensive, and therefore Jørn required BSim calculations that could identify our cooling need before new equipment was bought.

The Bsim simulations indicated that the required cooling power was heavily dependent of the ventilation rate; if a low ventilation rate is desired, the majority of the heat generated by the foils, people and equipment must be removed by an air conditioning unit. This would require a cooling power of approximately 8 kW. If an increased ventilation rate is chosen, the required cooling power can be reduced considerably.

Work on the Fluent CFD model continued. This does not have top priority at the moment. The results indicate a possible problem. The partition wall that divides the room might hinder the cooling of the part of the room in which the workstations are installed. Fans might reduce this problem, which experiments in the field laboratory will clarify further.

The foil walls were tested for the first time in the field lab at the lowest possible air temperature: 20 ° C at the workstation, which is achieved at a ventilation rate of 3 h^–1. Thus thermal discomfort problem can not be expected to a large extend, and indications could be psychological as much as real. However, it seemed that the back of the subject might not be sufficiently warm for comfort. Various solutions to this problem have been thought of, and it is agreed that this kind of problem can be solved, possibly by installing a modest number of extra foil walls. The set-up was tested without a heating foil installed under the tables, which seems to cause cold thighs. This result is preliminary, and requires testing at lower air temperatures.

An attempt was made to make the web-based software for addition tests and thermal comfort evaluations work. The attempt was not successful, which turned out to be because the required software was not available. Further work will have to be done to test the system. As time is very limited at this stage, the web-based system has been given low priority, as it is not required for the experiments to be performed – as opposed to a lot of other tasks.

Different cooling systems were researched. If possible, it will advantageous to rent a system instead of buying a new one. The price of a 9.1 kW system is approximately 35,000 kr.

More detailed plans for the recruitment and content of the experiments were made. Thomas’ experiences were valuable as input to the planning.

An elaborate attempt was made to waive the parking ticket which was received earlier. A sympathy-provoking letter was written to local authorities, which is expected to do the job.

From this week on, Gregers has been suffering from immense pain due to a rearrangement of his dental region. The underlying logic behind this is somewhat dim, but his dentist now drives a larger car. The already booming budget of the project is now also suffering from the pain killers, which is Gregers’ main source of nutrition. He has applied for a transfer to a nursery home, but so far has not received a reply.