- Wilfrid Paquet et fils
Wilfrid Paquet et fils combine qualify, performance and savings
With their conventional kilns, Wilfrid Paquet et fils could not meet the growing demand for top-quality dry wood.
Hydro-Québec experts studied the problem and proposed a hybrid system comprised of four drying cells equipped with heat pumps, working in conjunction with a steam boiler. This simple and elegant solution is suitable for drying many species of wood. The system requires little monitoring, is easier to control and gives better results than conventional systems!
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System description
The hybrid kiln operates in a closed loop. First air in four drying cells, each with a capacity of 100,000 bd. ft.*, is heated using an oil-fired boiler. Four associated 75-hp heat pumps then dehumidify the air, recover the heat and circulate it back into the drying cells at a temperature generally not exceeding 60°C (140°F). The energy efficiency of such a system is unequaled!
* bd. ft.: board feet
1 bd. ft. = 12 in. x 12 in. x 1 in.- J.W. Goodfellow
For J.W Goodfellow, quality and profitability go hand in hand
J.W. Goodfellow was looking for a cost-effective way to dry hardwood without altering its appearance or quality. This family business wanted an edge on the competition in a booming market.
The company opted for an all-electric kiln equipped with heat pumps. Compared to traditional drying with fossil fuels, this low-temperature system wastes less heat and requires less maintenance and monitoring.
Since it dries wood uniformly without darkening it, the system gives a top-quality finished product at a very advantageous cost. This ecological solution is also more energy-efficient and improves working conditions.
The system's resistor bank is equipped with a programmable energy regulator to control power demand so it never exceeds a preset maximum. This makes it easier for J.W. Goodfellow to manage electricity costs.
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System description
The all-electric system includes five drying cells with a total capacity of 240,000 bd. ft.* Each cell is paired with a heat pump, three with 40-hp and two with 25-hp motors.
Air in the drying cell is first heated by resistors, then dehumidified by heat pumps. The heat recovered is fed back into the kiln at a temperature that generally remains below 60°C (140°F).
*bd. ft.: board feet
1 bd. ft. = 12 in. x 12 in. x 1 in.- IPB International
Heat pumps help IPB International dry better
IPB International managers set a target: increase the annual drying capacity for pine and poplar by 1.8 million bd. ft.*
To succeed, they called on Hydro-Québec experts, who recommended two new dehumidification dryers with 25-hp heat pumps and 150-kW electric heating coils.
Thanks to the new systems, IPB International can now handle many different species of wood. The heat pump also helps improve the quality of the finished product, resulting in less downgrading.
*bd. ft.: board feet
1 bd. ft. = 12 in. x 12 in. x 1 in.Don't delay!
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- Portes Lemieux
Portes Lemieux opens doors to drying success
When redesigning its new door-manufacturing plant, Portes Lemieux was unsure how to optimize operations and enhance competitiveness.
Drying time for the paint applied to wooden doors could certainly be cut, but how, and above all, by how much? Hydro-Québec experts took a few samples and tested the paint for drying speed, hardness and toughness. They recommended an electric shortwave infrared oven as a way for the company to maintain production without compromising quality.
The results far surpassed the experts' predictions and were more than satisfactory. It was now possible to dry the paint in a mere 90 seconds!
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