Development of energy-efficient ovens for baking

G.位于安大略伍德布里奇的Cinelli-Esperia公司成立于1972年，是加拿大商业面包房设备的主要制造商之一。该公司专门从事面包房的布局和设计，面包和糕点的混合和制备机器，以及烤箱和其他面包房设备的制造。为了保持竞争力，烤箱制造商必须提供节能产品，因为能源效率对试图降低运营成本的面包店业主越来越重要。与多伦多大学合作，G. Cinelli-Esperia公司提议设计新一代节能烤箱。本项目的目标是：设计一种用于G。Cinelli-Esperia公司的旋转机架烤箱;建立和测试热交换器;开发一个计算机模型来预测烤箱中的空气速度分布;重新设计烤箱通风口，如果必要的话，以改善空气循环;并测试烤箱，以确保它符合能源之星星星认证所需的标准。 多伦多大学（U of T）的先进涂层技术中心（CACT）已经开发出高效热交换器，其中通过将多孔金属丝网或穿孔板粘合到热交换器管的表面来增强热传递面积。实验表明，这可以显著增强传热。多伦多大学将在G. Cinelli-Esperia Corporation的一项技术，用于计算现有热交换器的效率，并测量炉内的空气速度分布和热通量变化。初步的热交换器测试，以确定效率的增加，通过使用翅片将在实验室在多伦多大学。 基于从实验和模拟中获得的信息，将构建优化的热交换器，以最大限度地提高传热效率。

G. Cinelli-Esperia Corporation in Woodbridge, Ontario was established in 1972 and is one of the principal manufacturers of equipment for commercial bakeries in Canada. The company specializes in layout and design of bakeries, machines for mixing and preparation of breads and pastries, and fabrication of baking ovens and other bakery equipment. To remain competitive it is essential for oven manufacturers to provide energy efficient products since energy efficiency is becoming increasingly important to bakery owners who are trying to reduce their operating costs. In collaboration with the University of Toronto, G. Cinelli-Esperia Corporation proposes to design a new generation of energy efficient ovens. The objectives of the proposed project are to: design a high efficiency heat exchanger for the G. Cinelli-Esperia Corporation's rotary rack oven; build and test the heat exchanger; develop a computer model to predict the air velocity distribution in the oven; redesign the oven vents, if necessary, to improve air circulation; and test the oven to ensure that it meets the standard required for Energy Star certification. The Centre for Advanced Coating Technology (CACT) at the University of Toronto (U of T) has developed high efficiency heat exchangers in which the area for heat transfer is enhanced by bonding porous wire meshes or perforated sheets to the surface of the heat exchanger tubes. Experiments have shown that this can significantly enhance heat transfer. U of T will test operating ovens in the premises of G. Cinelli-Esperia Corporation to calculate the efficiency of existing heat exchangers and measure the air velocity distribution and heat-flux variation inside ovens. Preliminary heat exchanger tests to determine the increase in efficiency by using the fins will be done in the laboratory at U of T. Based on information obtained from experiments and simulations an optimized heat exchanger will be built that maximizes heat transfer efficiency.