Archives

New generation of heat exchangers (PDF | 16 ko)

The main purpose of this project was to develop a new generation of heat and humidity exchangers for the residential sector. They integrate, within the heat recovery system, a humidity control process that is efficient, reliable and affordable. Such improvements made to the air exchanger/heat recovery units manufactured by Venmar Ventilation Inc. require only a small amount of supplemental energy, and lead to lower energy consumption for heating and air conditioning, while making the home comfortable and providing quality indoor air.

Stockage d'énergie dans les serres – Energy storage in greenhouses University of Sherbrooke, Mechanical Engineering Department (PDF | 16 ko)

This project led to the development of a model that simulated the thermal behaviour of underground energy storage systems in damp ground. The principle is simple. It involves installing pipes that transport the warm air in a greenhouse into the ground, where the heat is captured by contact. When the air in the greenhouse cools down, the ground transfers back the stored heat. The simulation model allows users to determine the number of pipes necessary, the depth of pipe installation and the spacing between pipes, while taking into consideration variables such as the type of soil, the type of plants grown in the greenhouse and the size of the greenhouse.

Rejets thermiques et incinération régénérative – Thermal discharge and regenerative incineration (PDF | 17 ko)

The regenerative incineration process pursued by Biothermica International Inc. uses more than 90% of the heat generated by the combustion of volatile organic compounds (VOC), condensable organic compounds (COC) and natural gas to pre-heat the gas prior to their incineration. When put to optimal use, this technology can process up to 99% of VOC and COC contaminants, at an energy cost that is ten times less than conventional incineration.

Conception de thermostats électroniques proportionnels commandés par courant porteur pour plinthes chauffantes électriques – Electronic thermostats controlled by baseboard heater carrier current (PDF | 25 ko)

This project was carried out by the Canadian firm Metricom and consisted of designing two proportionally controlled 220-volt electronic thermostats – a master thermostat that issues orders to the slave thermostat, and a slave thermostat that receives and executes the orders issued by the carrier current. The system combines a drop in temperature with improved control and monitoring, leading to energy savings of 15% to 22%, greater comfort, centralized control and the option of either manual entry or program-controlled command.

To consult other project documents in the commercial sector