Flemish Institute for Technological Research
Flemish Institute for Technological Research
The Flemish institute for technological research , is a research centre, located in Mol, Antwerp, Flanders, Belgium. The institute performs contract research and develops products and processes in the fields of energy, environment and materials, for both the public and the private sector. Dirk Fransaer is director of the institute. Wikipedia.
Flemish Institute for Technological Research | Date: 2017-09-06
Method for buffering thermal energy in a thermal buffering medium (2) contained by a thermal energy buffer (10), wherein the volume of the thermal buffering medium (2) is subdivided in one or more parts (21) such that the different parts (21) of the volume of the thermal buffering medium (2) together form the total thermal buffering medium (2) present in the thermal energy buffer (10) and the thermal energy buffer (10) comprises a respective temperature sensor (11) for each part (21) for sensing a temperature of the thermal buffering medium (2) contained in the part (21), by providing a controller (3) with at least one signal representing at least one thermal energy value related to the thermal energy buffer, the thermal energy values comprising a predetermined minimum amount of thermal energy present in the thermal energy buffer and an amount of thermal energy present in the thermal energy buffer, wherein the controller (3) controls a heater (4) of the thermal buffer (10) in function of the thermal energy values such that the amount of thermal energy present in the thermal energy buffer (10) is higher than or equals the predetermined minimum amount of energy present in the thermal energy buffer (10).
Flemish Institute for Technological Research | Date: 2017-08-02
There is provided an electronic direct current transformer circuit configuration for transferring power from a source to a load using magnetic storage coupling, the circuit comprising: an input node adapted to receive an input alternating current power source having an input direct voltage waveform; the magnetic storage coupling unit comprising: a first set of windings coupled to a first switch, the first switch for receiving an input charging current associated with the input voltage; a second set of windings located in series or opposing connection with the first set of windings with a common magnetic path; a second switch connected at one end between the first and second set of windings and at another end to a common ground or common connection, the first and second switches having a switching frequency in a kilohertz range and switching between on and off in alternating modes; and an output node connected to the second set of windings, the output node adapted to provide an output DC power, the output power having an output voltage with an amplitude based on the input voltage and a voltage constant. Also, the direct current transformer behaves in the ideal sense in that it also allows power to flow from the load to the source. This reverse function works for alternating voltage (AC) and direct voltage (DC) circuits.
News Article | July 14, 2017
A review found high concentrations of phthalates in various cheese products currently being sold in the market. Powdered cheese in boxed mac and cheese were found to have the highest concentrations of phthalates among the tested products. Phthalates have previously been linked to pregnancy problems as well as behavioral problems in older children. You may be familiar with phthalates, but not for health reasons. Phthalates are often called plasticizers and are used in a variety of plastic products to make them more flexible. However, a new study shows that many of the cheese products in the market actually have significant traces of this chemical compound. After testing different types of cheese products including children's favorites such as string cheese and processed cheese slices, researchers found that 29 out of 30 tested products contained phthalates. More specifically, they identified 10 different phthalates in the tested cheese products, with up to six compounds in a single product. In fact, the highest concentrations of phthalates were found in the powdered samples from boxed mac and cheese where the average phthalates levels were up to four times higher than other cheese products. Further, di(2-ethylhexyl) phthalate (DEHP) was found more often in the products and in higher concentrations compared to other phthalates. Researchers opted to examine cheese products after a 2014 study, which concluded dairy products to be the highest source of DEHP among children and women at reproductive age. As such, the team opted to review cheese products first in the series of dairy products testing for DEHP. The review was carried out by four groups, namely the Environmental Health Strategy Center, Safer States, Healthy Babies Bright Futures, and the Ecology Center. The testing itself was conducted by an independent laboratory in Belgium, the Flemish Institute for Technological Research. As mentioned, phthalates are chemical compounds that are often used to make plastics more flexible and difficult to break. They are used in a multitude of products including vinyl flooring, automotive plastics, lubricating oils, raincoats, and beauty products such as shampoo and nail polish. They are also in products that children often use such as inflatables and plastic toys. More often, phthalates are absorbed through the skin via direct contact or by eating and drinking food products that have been in contact with phthalates. Though exposure to phthalates via the air occurs albeit to a lesser extent, young children may be more at risk of phthalate exposure from dust due to their hand-to-mouth habits. At levels found in the environment, the Centers for Disease Control and Prevention (CDC) does not expect any adverse health effects. However, more serious effects of phthalates remain to be a mystery, as human absorption and breakdown of DEHP varies greatly from that of mice and rats. As such, some of the effects of DEHP exposure to mice may not occur to humans and primates. Even agencies are split on this matter, as the Environmental Protection Agency classifies DEHP as probably human carcinogens along with the Department of Health and Human Services (DHHS) who classifies the chemical compounds similarly. On the other hand, the International Agency for Research on Cancer (IARC) changed its description of DEHP from being a possible carcinogen to a product that cannot be classified regarding its carcinogenicity in humans. © 2017 Tech Times, All rights reserved. Do not reproduce without permission.
Flemish Institute for Technological Research | Date: 2015-03-26
A method and system that allows thermal energy to be supplied at different temperature levels to consumers, where each consumer is provided with its desired temperature whenever that is necessary. The method or a system for supplying consumers with heat energy or with cooling energy includes a set of three or more conduits for carrying a heat transfer fluid, each conduit carrying fluid at one of three or more different temperatures or temperature ranges, a plurality of heating and/or cooling consumer appliances distributed along the length of the conduits, each consumer appliance being linked to one of a plurality of pairs of conduits such that either: a consumer appliance is linked on a high temperature side, or a consumer appliance is linked on a low temperature side; a number of heat or cold generators, each pair of conduits being connected to at least one of the generators.
Flemish Institute for Technological Research | Date: 2017-01-11
An injection molding system comprising: a manifold (24), a nozzle comprising a nozzle body (18) having an outer circumferential surface that reduces in cross-sectional diameter or radial length beginning from a selected upstream point to a selected downstream point, a sleeve (20) having a hollow bore having an inner surface complementary to the outer circumferential surface of the nozzle body such that the downstream end of the nozzle body is insertable into the upstream end of the hollow bore and further insertable downstream through the hollow bore to a point of maximum downstream travel at which the outside circumferential surface of the nozzle body engages the inside surface of the hollow bore, the engaged surfaces preventing further downstream travel of the sleeve body through the hollow bore.
Flemish Institute for Technological Research | Date: 2017-03-01
A method and system is described that allows thermal energy to be supplied at different temperature levels to consumers (broad band district heating and cooling), whereby each consumer is provided with its desired temperature whenever that is necessary. The method or a system for supplying consumers with heat energy or with cooling energy is described, comprising: a set of three or more conduits for carrying a heat transfer fluid, each conduit carrying fluid at one of three or more different temperatures or temperature ranges, a plurality of heating and/or cooling consumer appliances distributed along the length of the conduits, each consumer appliance being linked to one of a plurality of pairs of conduits such that either: a consumer appliance is linked on a high temperature side to one of the conduits of a pair for receipt of fluid and for extraction of heat energy and being linked to another of the conduits of the pair at a lower temperature side to discharge the fluid into the another of the conduits, or a consumer appliance is linked on a low temperature side to one of the conduits of a pair for receipt of fluid for cooling and being linked to another of the conduits of the pair at a higher temperature side to discharge the fluid into the another of the conduits; a number of heat or cold generators, each pair of conduits being connected to at least one of the generators to either: raise the temperature of the fluid from the lower temperature conduit of the pair to the temperature of the higher temperature conduit of the pair, or lower the temperature of the fluid of the higher temperature conduit of the pair to the lower temperature of the lower temperature conduit of the pair.
Flemish Institute for Technological Research | Date: 2015-03-24
A method for manufacturing a high ductility Ti-, Ti-alloy or NiTi-foam, meaning a compression strain higher than 10%, includes: preparing a powder suspension of a Ti-, NiTi- or Ti-alloy powder, bringing the said powder suspension into a desired form by gelcasting to form a green artefact. The method also includes a calcination step wherein the green artefact is calcined, and sintering the artifact. The calcination step includes a slow heating step wherein said green artefact is heated at a rate lower or equal to 20 C./hour to a temperature between 400 C. and 600 C. and the Ti-, NiTi- or Ti-alloy powder has a particle size less than 100 m. A high ductility Ti-, Ti-alloy or NiTi foam, with a compression higher than 10%, with a theoretical density less than 30%, pore size (cell size) between 50 to 1000 m can be obtained with such a method.
Flemish Institute for Technological Research | Date: 2015-11-25
A multi-stage heat engine such as a pump comprising an evaporator and a condenser; an expander section including more than two expander stages; a compressor section comprising more than two vapour compression stages that co-operate with the expander section; x tanks wherein x is at least three (e.g. T1 to Tx) for holding gaseous phases (e.g. G1 to Gx) and liquid phases (e.g. L1 to Lx) of a fluid; the expander section having x-1 expansion valves (e.g. V1 to Vx-1), the compressor section being adapted to compress the gaseous phase in the adjacent tank with a higher pressure to that in which expansion had occurred and move the compressed fluid to the next adjacent tank at a higher pressure, the expander section being adapted to expand a part of the compressed fluid (liquid) in each tank, through the expansion valve (V) of that tank, to expand the fluid in the adjacent tank at a lower pressure, the compressor and expander sections being adapted to output the gaseous phase at the highest pressure to the condenser and the liquid phase at the lowest pressure to the evaporator, the output of the condenser being fed back to tank (T1) at the highest pressure and the output of the evaporator being fed back to the tank (Tx) at the lowest pressure, wherein said multi-stage heat pump constitutes multiple evaporator-compressor-condenser-expander modules which are substantially identical to one another; a process for increasing the temperature of a medium, said process comprising the steps of: subjecting said medium to multiple evaporation-compression-condensation-expansion-cycles in said multi-stage heat pump; and the use of said multi-stage heat pump in the transformation of heat from renewable energy sources to higher temperatures.
Flemish Institute for Technological Research | Date: 2016-11-16
Method for distributing an energy flow to a cluster of a plurality of devices taking into account constraints relating to the energy to be delivered to the devices, comprising the steps of:A. gathering flexibility information of the respective devices in the cluster,combining the flexibility information of the devices of the cluster into flexibility information for the cluster,B. determining accumulated energy to be delivered in function of time over the predetermined period of time,C. supplying the determined accumulated energy to the cluster by obtaining,from the flow of energy, power in function of time based on the determined accumulated energy to be delivered in function of time, determining priority for power for all devices in the cluster and distributing the obtained power among the devices of the cluster.
Flemish Institute for Technological Research | Date: 2015-11-18
A disconnection device (10) for electrically disconnecting an electrical appliance (8) from an electrode pair (1, 2) comprises an electrically isolating holder (11) between the electrode pair (1, 2). The holder comprises an electrically conductive substance (5) disconnectable from the electrode pair (1, 2) under gravity forces.