44 Case Studies Matsuri expands sushi display
TWO HOSHIZAKI SUSHI cases are sited in a prime position within the new sushi bar at Matsuri, a Japanese fine dining restaurant situated in the heart of London’s Mayfair.
Since the restaurant opened in 1993 as a joint partnership between the Central Japan Railway Company and Kikkoman, Hoshizaki sushi cases have been in daily use.
Manager Cristoforo Santini explained: “I believe the first sushi case we had lasted for 10 or 12 years and was replaced with one of the pair we’re using now – Hoshizaki equipment really is built to last! We recently decided to create a dedicated sushi bar and, as we needed to display a wider variety of fish, ordered a second case.”
The cases are cleaned and filled with fresh produce for the lunchtime service and then again for dinner. What goes into them is entirely dependent on the best quality fish and shellfish available each day but, typically, one case will display sea bream, bass, yellowtail, squid, tuna and turbot, while the other will show shrimps, prawns, sea urchins, salmon roe and scallops.
The consistent +5°C internal temperature allows the fish and shellfish to be held in perfect condition for several hours, which means that customers can see exactly what they will be served and can watch the chef preparing the sushi.
Sushi accounts for a high proportion of Matsuri’s food sales and the new sushi counter is tempting even more customers. The lunchtime demand for lighter sushi dishes has already
increased, while evening diners now have the option of sushi kaiseki, which consists of eight to 10 sushi courses. “The display cabinets have certainly attracted customers,” said Mr Santini. “Of course, from a practical perspective, they hold our sushi ingredients in perfect condition but, beyond this, they send a message to our customers that the freshness and quality of our food is outstanding and that we’re proud to let them see it.”
Car park ventilation system gets ABB make over
THE NCP CAR park in Drury Lane, Covent Garden, has been refurbished with variable-speed drives (VSDs) from ABB, giving better control of the ventilation system and more energy efficiency. THE CAR PARK, which offers 330 parking spaces, is sited in the heart of London’s West End under the New London Theatre.
NCP wanted to modernise the car park’s ventilation system in order to meet current demand in terms of efficiency, while at the same time achieving significant energy savings.
George Murphy, Building Services
Engineer – South for NCP said: “The car park is used at predictable times, with business from commuters during the day and theatre goers during the evening. We wanted a system which would proportionally control the ventilation dynamics in response to the actual vehicle movements within the car park while maintaining adequate statutory environmental conditions. This step change has also resulted in reduced wear and tear on the ventilation system.” The fume extraction ventilation system consists of two centrifugal extraction fans located in a common plenum chamber through the theatre chiller room and two axial supply fans in the corridor area of an adjoining restaurant.
ACR News September 2014
NCP asked ABB HVAC partner Drive Control to look at how the system could be improved. Jez Wyant of Drive Control says: “One of the challenges was the limited access available, as some switchboards and cabling are located in areas within the theatre itself and the adjoining restaurant.”
Drive Control recommended using four
ABB HVAC drives. Two 37kW drives were used for the fume extract fans, while two 22kW drives were used for the supply fans. All were rated at IP54.
The two extract fans are supplied with separate mains power from a new junction box installed outside the plenum chamber in the chiller room. To simplify the project, much of the original cabling and some original switches were retained. A single phase 220V supply is also taken from this junction box using 2A MCBs. This supply is switched using a relay inside the duty VSD to the motorised damper, operated by an internal timer in the VSD. Once the damper has opened, a start command is then sent to the VSD. A carbon monoxide (CO) sensor is installed adjacent to each VSD. This detects the CO level in the plenum chamber and sets the speed of the drive proportional to the CO level, with 50ppm being 25Hz and 100ppm being 50Hz. If the detected CO is below this level, the duty fan will operate
at a fixed frequency of 20Hz. A 4mA to 20mA frequency dependent control signal is derived from each VSD running the extract fans. These signals are transmitted through the original cables to the new junction box and from there again via existing cables to the supply fan VSDs. The signal is used to operate a supervision relay to start the VSD from the digital input. This signal is also used to tell the VSD how fast to run to match the extract fan speed.
The supply fans are driven by two old 19kW class E motors, requiring the installation of output side filters to the VSDs to reduce the possibility of motor winding damage.
The project was part of a rolling program that has seen Drive Control refurbish 25 NCP car parks so far, with more planned for the near future.
Visit ACR News online at
www.acr-news.com
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52