Cadbury Canada

Weston Foods Gladstone Avenue Plant

The Weston Foods plant has undergone many mechanical and electrical renovations and upgrades with HH Angus and Associates serving as prime consultant.

Producing chocolate and confectioneries has many challenges. They require viscous fluid pumping and precise control of temperature and humidity levels in order to produce quality chocolate. These engineering challenges were compounded by the plant’s urban location in a residential area, which meant that all amendments to the exterior of the plant had to be compatible with the neighbourhood.

HH Angus was engaged to review the plant, which had been operating for 20 years. This was done to establish current production requirements and to assist in projecting requirements for future growth.

HH Angus’ work at the plant included:

Development and construction of a new central plant to provide steam, water, compressed air, refrigeration, and HVAC services for confectionery production. The plant featured a 2000 ton ammonia-to-water process chilling and air conditioning plant to condition 300,000 cubic feet per minute for air conditioning and ventilation of production areas, and for remediation of noise and odours within the plant. Renovation of the office and manufacturing facilities involved relocation of 13 production lines to preferred locations and reworking the electrical power distribution system. During the time the renovation was in progress, production was sequentially phased in selected areas, and high levels of quality production were achieved with no impact on product quality.

Processes and spaces involved in the renovations and upgrades included:

Pumping of multiple grades of chocolate with double-walled hot water heated piping for chocolate transportation
Pumping of chocolate liquor, fats and food oils, glucose, sugars, caramel, nougat; transport piping and storage tanks
Bulk milk delivery with tanker cleaning facilities
Freezer storage warehouse space for ice cream
Cool storage for chocolates
Cold storage for production ingredients
Process water recovery system for process chilled, cold and hot water, which reduced plant water consumption with significant savings
50,000 US gallons per day process effluent discharge control system to reduce biochemical oxygen demand and suspend solid level of process effluent to meet stringent City of Toronto requirements
Special humidity control (30% RH or lower) for hydroscopic confectionery process rooms
Air systems to handle process-generated dust and vapour extraction for peanuts, raisins, alcohol solvent-based candy coatings, and sugar conveying
Review of process cooker and votator (scraped surface heat exchanger) of foreign manufacture with respect to ASME pressure vessel code compliance
Upgrading of 2200 ton ammonia refrigeration condensing system to all evaporative condensing equipment, with 28 stages of condensing. Design of microprocessor-based control system for: optimized selection of equipment to maintain condensing pressure; automatic selection of quietest equipment for night-time operation; automatic selection/deletion of condensing stages for summer or winter operation.

SERVICES
Mechanical Engineering | Electrical Engineering

PROJECT FEATURES
Status: Completed 2006

LOCATION
Toronto, Ontario

KEY SCOPE ELEMENTS
Development and construction of new central plant facility | Steam, compressed air, refrigeration and HVAC services | Renovation of office and manufacturing facilities

Working with Affiliates

In addition to the work in the chocolate and confectionery plant, HH Angus and Associates has been involved with Weston Group food plants at:

Weston Bakeries
Neilson Dairies
Loblaw Supermarkets

Holland Bloorview

Kids Rehabilitation Hospital

“Bloorview sets a new benchmark for the shape patient- and family-centred health care should take in the future.”

— Beth Kapusta, Azure Magazine

Holland Bloorview Kids’ Rehabilitation Hospital is a 5-storey 343,000 ft2 rehabilitation inpatient/outpatient facility that replaced two existing facilities. It includes a 75-bed inpatient unit, specialized clinics, school, lap pool, therapeutic pool, cafeteria and central kitchen, technical laboratories and administration offices.

The main design objective was to create an environment that was inviting, friendly and safe. In patient rooms, indirect lighting and downlights create a cozy atmosphere. LED night lights and wall-mounted non-commercial, glare-free bed lights mimic sconces while enhancing comfort and safety. Daylighting throughout the building significantly reduces environmental impacts for this 24/7 healthcare facility.

In the lobby, a colour window displays LED scenes controlled by motion sensors that are triggered when children walk by, creating a fun and interactive environment. The design is sense-oriented with colour distractions, and incorporates low-glare and natural daylighting.

The Snoezelen Room, the first of its kind in North America, uses light as therapy, incorporating multi-level, colour-changing, indirect and twinkling lighting. Its focal point is a therapeutic pool using an indirect, direct and snoezelen lighting for children’s therapy. The pool’s higher temperature required design considerations to control the higher humidity and space temperatures.

SERVICES
Mechanical Engineering | Electrical Engineering | Lighting Design | IT & Communication Design

PROJECT FEATURES
Size: 343,000 ft2 | Status: Completed 2006

LOCATION
Toronto, Ontario

KEY SCOPE ELEMENTS
5-storey facility | Innovative lighting design incorporated in Snoezelen Room - first of its kind in North America | Lobby Colour Window displays motion-controlled LED scenes

Inviting the neighbours in

The recreation pool was designed as a community facility. The lighting features wall-mounted and suspended indirect lighting. The lap pool was located on the exterior of the building with exterior glazing. This posed a challenge in keeping the windows clear of condensation with the high humidity levels from the pool. Air curtains at the windows were incorporated to help eliminate the condensation build-up.

Optimizing design for a sustainable result

Extensive input from the entire design team resulted in an environmentally-sensitive design. A series of workshops were held during Design Development to optimize all aspects of the building, and to maximize use of sustainable materials.

Quote source: World Architecture News, The kids are all right

Ministry of the Solicitor General

Adult Infrastructure Renewal Program

The Adult Infrastructure Renewal Program consolidated facilities in the provincially-run prison system in order to substantially reduce operating costs.

The emphasis was on efficient construction, high security and very low staff requirements. HH Angus worked closely with the client to create an economical design based on double bunking, which accommodated a total of 4,700 beds (three 1,500 - 1,700-bed facilities) in the Ontario communities of Lindsay, Penetanguishene and Milton.

Each facility consists of modular housing units encircling central control posts, and has a large Admitting and Discharge area, medical unit, segregation and a women’s unit. All the facilities house both detainees awaiting trial and inmates with sentences under two years.

HH Angus was involved in the mechanical and electrical design engineering of these state-of-the-art facilities, which include ultra-modern features and advanced technologies for enhancing public safety.

Some of the new design and technical features include:

Video Remand - videoconferencing for routine bail and remand hearings. The program effectively reduces security risks, as well as costs associated with transporting prisoners.
Sallyport Double-Locking Door System - The first of two doors opens into a secure area of the facility. Staff open the second door in the sallyport system once they determine it is safe to allow movement through the halls. By monitoring all activity through a window, staff control the opening and closing of the doors, severely restricting inmate movement.
Control Station - A control station is located in the centre of each pod. The station has direct sight lines along halls and into all populated areas. The pods are self-contained units where inmates spend their days. This reduces the need for inmate movement throughout the facility.
Video Surveillance - Cameras provide the control station with comprehensive sight lines within any area of the pod.
X-Ray Scanning Imagery and Metal Detectors – These restrict the flow of contraband into the prison system. All visitors must pass through a metal detector, where items being carried into the facility are examined by x-ray.

SERVICES
Mechanical Engineering | Electrical Engineering | Planning, Design and Compliance (PDC)

PROJECT FEATURES
Status: Completed 2006

LOCATION
Toronto, Ontario

KEY SCOPE ELEMENTS
3 state-of-the-art-facilities | Added ultra-modern features to enhance public safety | Construction included double-bunking, which accommodated a total of 4,700 beds (across three 1,500 - 1,700-bed facilities) in the Ontario communities of Lindsay, Penetanguishene and Milton

General Motors of Canada

Truck Plant Fluids Tank Farm

HH Angus redesigned the pump house and storage tank farm providing automotive fluids to the vehicles in the truck assembly plant.

Our project scope covered replacing ten 50,000 litre and three 25,000 litre storage tanks. The system also required seven new truck offload pumps and twelve new plant delivery pumps. Because it was not an option to shut down the plant to facilitate the work, co-ordination and timing between the construction activities and plant operations was critical to the success of the project.

A steam-heated glycol loop heating system was provided for the storage tanks containing high viscosity fluids. Glycol was pumped through a closed loop system and controlled via temperature control valves in each tank.

Due to the flammable and combustible fluids stored at this facility, a four zone Aqueous Film Forming Foam (AFFF) fire protection system was used. The total calculated flow was greater than 3,000 USGPM. The fire protection system was interlocked electrically to the process function, and connected directly to both the in-house and municipal fire brigade to assure maximum protection and safety.

SERVICES
Mechanical Engineering | Electrical Engineering

PROJECT FEATURES
Status: Completed 2005

LOCATION
Oshawa, Ontario

KEY SCOPE ELEMENTS
Replacement of ten 50,000 litre and three 25,000 litre storage tanks | Continuous plant operation required, necessitating high degree of coordination and precise timing | Tanks for high viscosity fluids required steam heated glycol loop | AFFF fire protection system

Thunder Bay Regional Health Sciences Centre

The Hospital’s architectural design presented challenges that required innovative engineering to visually integrate lighting, heating, cooling, power and ventilation services throughout the building, while meeting the life safety requirement and respecting the architectural integrity of the design.

HH Angus was retained to provide the mechanical, electrical and vertical transportation consulting engineering for this 683,000 ft2 375-bed acute care facility on a greenfield site. The facility included the full range of departments found in an acute care hospital, as well as the regional cancer centre, ambulatory care, forensic mental health, and full kitchen and laundry facilities. Subsequent projects delivered a cogeneration facility and the Northwestern Ontario Regional Cancer Centre at the Thunder Bay Hospital site.

For the main hospital, energy efficiency elements were a key component of the design. HH Angus worked extensively with the architects to calculate the optimum building orientation and amount of sun shading devices, and determined the optimal glazing and curtain wall specifications required to realize passive solar energy gains and reduce the hospital’s long-term overall operating costs.

The heating plant for the hospital consists of 4 X 350 BHP hot water boilers and 2 X 250BHP low water content steam boilers. The hot water distribution is handled through primary and secondary pumping with variable frequency drives on the pump motors.

Enhanced fire alarm and security systems were implemented to address a design challenges posed by the forensic psychiatric unit.

The project used a construction management procurement approach, with sequential tendering geared to achieve fast track completion. The methodology involved significant coordination and interaction between the consulting and construction teams.

SERVICES
Mechanical Engineering | Electrical Engineering | Vertical Transportation Design

PROJECT FEATURES
Size: 683,000 ft2 | Status: Completed 2004

LOCATION
Thunder Bay, Ontario

KEY SCOPE ELEMENTS
Greenfield hospital | Fast track completion | Full acute care departments, plus cancer centre, ambulatory care, and forensic mental health | Energy efficient design to reduce overall operations cost | Enhanced fire alarm & security systems

User-friendly spaces

The hospital has a 460 ft. long, 25 ft. wide “main street” that forms the backbone of the building. It is constructed with wooden columns and beams, opening the space to the outdoors with 35’ curtain wall.

Working with a tight schedule

Under a fast track completion, this fully functional state-of-the-art hospital was designed and constructed within a short five-year timeframe.

A 360˚ service provider

HH Angus delivered design engineering for Thunder Bay Regional Hospital’s main acute care building, its mental health centre, its cogeneration plant, and the Northwestern Ontario cancer centre on the same site.