Dinner by Heston Blumenthal proving so popular that by November 2011, some 900 were being sold per week and the restaurant was aiming to increase production to be able to supply up to 1200 a week. During the Christmas period, the Meat Fruit is decorated to appear like a plum rather than a mandarin to accord with the holiday season. The ice cream trolley holds a contraption created by Blumenthal and his team, and constructed from Corian by Mike Smith Studio at a cost of £25,000. Powered by a hand crank, it mixes custard and liquid nitrogen to create instant ice cream at the
Gas–liquid contactor is higher for equipment with higher values of gas–liquid interface surface area, so gas–liquid contactors with high surface area (e.g. packed column, spray tower) are often preferred when it is important to lower the cost of the equipment. Liquid hold-up is also an important factor for the economy of the process, because for low values of liquid hold-up a bigger equipment is needed to have the same heat and mass transfer velocity. For this reason, gas–liquid contactors with low liquid-hold-up (e.g. falling-film column) in general are not used at industrial scale. Gas–liquid contactor A gas–liquid contactor is a particular chemical