Paper
Proposal No.1 to the Measurement Journal, London, UK
Abstract Sept. 2001
A Novel Remote Measurement
and Monitoring System for The Measurement of Critical Washing Parameters
Inside a Domestic Washing Machine
Dr David Ward
Via Fornari 46, 20146, Milan,
Italy.
Fax Italy 0332-758965, Email.
[email protected]
Dr W. Kennedy, The Open University,
Dept. of Environmental and Mechanical Engineering,
Milton Keynes, UK.
Keywords: Shear stress, probe,
wireless measurement, flow velocity, washing machine, soil, remote
Abstract
A patented measurement system has
been developed and tested that allows the remote sensing of critical wash
parameters directly inside a domestic washing machine via a wireless data
acquisition system. The system continuously measures and monitors local
flow velocity within the wash load but can easily be adapted to suit or
extrapolate other parameters e.g. shear stress, temperature, humidity etc.
The flow measurements are obtained
from a peculiar form of the well-tested Pitot tube–probe combined with
a piezoresistive type pressure transducer and a matched pair of battery
operated 433Mhz hybrid transmitters and receivers. The probe, which is
located on the surface of a hollow sphere, captures local dynamic pressure,
which can be related to the surface flow velocity. The transducer and transmitter
are housed within the sphere that was designed to follow the wash load
during the washing cycle and using rapid prototyping technology for its
realisation. The receiver, that is mounted outside the machine, picks up
the modulated radio signal after which it is processed and stored using
a dedicated data acquisition system. This D.A. system is based on a sample–and–hold
board, a PCMCIA card and program developed using LABVIEW software. The
use of the same probe installed on the inside surface of the washing machine
door face and relative experimental results are also discussed.
Paper Proposal No.2 to International
Appliance Technical Conference
Electronic Olfaction Machines:
A Review and Examination
of Potential
Applications in Appliances
Dr David Ward
Via Fornari 46, 20146, Milan,
Italy.
Fax Italy 0332-758965, Email.
[email protected]
Abstract
This paper is intended to examine
the overall technology behind eNoses and review potential applications
in the appliance industry. It also provides an introduction to the human
olfactory system, how this can be emulated via an array of chemical sensors
and traces the history of olfaction machines.
Paper Proposal No.3 to International
Appliance Technical Conference
Basic Thermal Modelling of
Oven Cooking and the 'Brick' Test
Dr David Ward
Via Fornari 46, 20146, Milan,
Italy.
Fax Italy 0332-758965, Email.
[email protected]
Abstract
This paper examines the performance of a
domestic oven by first developing a simple model to macroscopically describe
the relative heat and mass transfer involved. This is followed by
a closer look at the calculation of the thermal mass depending on food
ingredients and mass loss due to evaporation. The mass loss is then modelled
with a 2nd order or higher polynomial extrapolated from real cooking tests
(incl. angel cake, potato, chicken).
Subsequently the resulting polynomials are
correlated to the recent ratified EN 50304 (energy labelling) standard
(the so called 'Brick test') and a comparison between this test and real
cooking conditions are briefly discussed.
The paper ends with a proposal concerning
an improved, and more, complete thermal model with special reference made
to radiation exchange.