University of Waterloo

Humanities Chiller Plant

HH Angus provided prime consulting engineering services for mechanical, electrical and structural design, project management, and construction administration services for this new Chiller Plant at the University of Waterloo.

The installation included two new 1000 ton, low-pressure centrifugal chillers, two new 1000 ton induced draft cooling towers, associated ancillary equipment, an emergency refrigeration ventilation system, and a chiller plant control system.

The electrical design featured new electrical infrastructure to accommodate the addition of new switch gear, transformers and electrical distribution to all ancillaries.

We used Bentleys Autoplant 3D software for the mechanical piping and ventilation design to ensure the functionality of the equipment and piping layout design. We also provided our client with documentation for pre-tendering of chillers and assisted in evaluation of the tenders.

As Prime Consultant, we engaged a structural engineer to design the necessary infrastructure on the roof to support the new cooling towers.

SERVICES
Prime Consultant | Mechanical Engineering | Electrical Engineering | Contract Administration

PROJECT FEATURES
Status: Completed 2011

LOCATION
Waterloo, Ontario

KEY SCOPE ELEMENTS
Installation of two new 1000 ton low pressure centrifugal chillers | Two new 1000 ton induced draft cooling towers | Emergency refrigeration ventilation system | Structural design to support new infrastructure for cooling towers | Bentleys Autoplant 3D to ensure functionality

North Bay Regional Health Centre

The first LEED^® registered healthcare facility in Canada, North Bay Regional Health Centre was built on a greenfield site and replaced two general hospitals and a separate mental health facility. HH Angus provided mechanical, electrical, vertical transportation, specialty lighting and communications design consulting engineering for the project.

The gross building area is 725,000 ft2. The facility includes the full range of departments normally found in a regional acute-care, 275-bed hospital, plus a new facility for the Northeast Mental Health Centre. The mental health portion is significant, consisting of 150,000 ft2 and 113 beds, and also includes a significant forensic component.

Using a completely innovative approach, our staff developed 100% outdoor air systems with total enthalpy heat recovery wheels, the first time this system had been implemented in North America. A major advantage of this system is that there is no re-circulated air, which greatly reduces the possibility of infection transmission for patients, staff and visitors. As well, delivering 100% fresh air rather than re-circulated air reduced the need for as many air changes in patient rooms as had previously been the norm. And that change meant that smaller fans and less ductwork were possible, resulting in lower capital cost.

As a value added service, HH Angus constructed a mock patient room to verify airflow patterns for the air distribution system. This ensured that the design was flawless. In addition, reducing air volumes to patient rooms to four changes per hour resulted in changes in the CSA standard.

The project also included:

Planned future remote cogeneration plant
High efficiency central heating plant with hot water and steam boilers
Centrifugal chillers supplemented with a 24/7 chilled water system
Radiant ceiling panels for perimeter heating
Enhanced building envelope to achieve energy performance
Bi-fuel emergency generators with provision for dispatch lighting
LED lighting

SERVICES
Mechanical Engineering | Electrical Engineering | Communications Design | Lighting Design | Vertical Transportation Consulting

PROJECT FEATURES
Size: 725,000 ft2 | The first modified Alternate Finance Partnership (AFP) in Ontario | Status: Completed 2010

LOCATION North Bay, Ontario

KEY SCOPE ELEMENTS
Greenfield hospital with new mental health centre | A North American first: 100% outdoor air supply with high efficiency total enthalpy heat recovery wheels throughout the hospital, resulting in reduced risk of infection and lower capital costs | One of Canada's first LEED^® registered facilities

Custom electrical design

Specialized electrical systems features for the project included a centralized uninterrupted power system and an integrated communications systems platform used for all building operations and healthcare applications.

One of Canada’s first LEED^® registered facilities

The main challenge with the design of this facility was performing energy modeling for LEED^®. HH Angus’ design team included LEED^® Accredited Professionals qualified to carry out a project that met LEED^® standards for creation of an energy-efficient building.

— Image courtesy of Evans Bertrand Hill Wheeler Architecture Inc.

Brookfield Developments

Bay Adelaide Centre, Phase 1 West Tower

The Bay Adelaide Centre Phase 1 West is a large downtown Toronto office tower. HH Angus was involved in the design and tendering of elevating devices in this new 51-storey development.

Elevating systems include 28 passenger elevators, 2 service elevators and 2 escalators. The passenger elevators have rated speeds ranging from 3.5 m/s (700 fpm) in the 5-car low rise bank to 7.0 m/s (1400 fpm) in the 8-car high rise bank.

SERVICES
Vertical Transportation Consultants

PROJECT FEATURES
Status: Completed 2009

LOCATION
Toronto, Ontario

KEY SCOPE ELEMENTS
Design and tendering of elevating devices | Elevating systems included 28 passenger elevators, 2 service elevators and 2 escalators

Queen’s University

Tindall Playing Field Relocation & Parking Structure

“The opening of Tindall Field is the first step for Queen's Athletics in moving towards our vision of becoming the best in Canada.”

– Leslie Dal Cin, Director of Athletics and Recreation, Queen’s News Centre Sept. 2008

Kingston, Ontario’s first outdoor artificial playing surface, Tindall Field at Queen’s University, was developed as a two-level underground parking structure and a running track and Soccer/Football Playing Field. The roof of the parking structure forms the base of the playing field, and includes a playing field storm drainage system that directs the storm water to a large cistern for flow control into the municipality’s storm drainage system. The field is surrounded by a 3-lane rubberized track.

Resolving light pollution issues was critical, given the proximity of the field to a student residence and the campus observatory. Lighting consisted of pole-mounted luminaires on each side of the playing field. The light distribution was controlled by designing shields for the upward lighting component and reflectors with cut-offs to reduce light distribution at the edge of the playing field.

SERVICES
Mechanical Engineering | Electrical Engineering | Lighting

PROJECT FEATURES
Status: Completed 2008

LOCATION
Kingston, Ontario

KEY SCOPE ELEMENTS
Playing field over underground parking | Rubberized running track | Storm drainage system with large cistern for flow control |Specialized light distribution control

Toronto Community Housing

341 Bloor Street West, Senator David A. Croll Apartments

“The system brings enormous value to the facility. Not only does it increase the emergency power load to near peak load, but also it reduces emissions and eliminates transmission losses, thus reducing the need for expanded power generation.”

- Paul Isaac, Principal in Charge, HH Angus

The Senator David A. Croll Apartment building, formerly Rochdale College, is a typical multi-unit residential building managed by the Toronto Community Housing Corporation.

This 335 kW combined heat and emergency power (CHeP) project was built to avoid the cost of replacing a diesel generator, with a significant saving of $300,000. Conventional emergency on-site generation uses dedicated equipment that is rarely operated, yet has a very high capital cost (known as a ‘stranded asset’). HH Angus converted this stranded asset to provide an economic benefit to the facility. The benefit comes from recovering heat so that the overall efficiency rose from 33% to 83%, as well as the use of natural gas, which is cheaper than diesel.

The new generator produces enough electricity for the entire building load on most days. The heat generated by the engine is captured and used to heat the domestic hot water system and building spaces, thereby producing a highly efficient use of the fuel - greater than 90%!

The most important benefit for the building’s occupants is the increased emergency power load capabilities. Instead of powering just a minimum of elevator and emergency lighting services during power outages, the CHeP system provides a power load that runs all regular systems, including heating and air-conditioning systems.

SERVICES
Prime Consultant | Mechanical Engineering | Electrical Engineering