Journal Article

·2012

Investigation of the System Parameters Affecting the Runtime of a Freezer Compartment

Hüsnü Kerpiçci , Onur Poyraz , Tolga N. Aynur , İsmail Teke YTU

Abstract

In this study, an experimental setup was built to evaluate the energy consumption of a freezer compartment by varying the runtime (i.e. the ratio of the compressor ON time to the total cycle time) of the system with the evaporation temperature and the airflow rate. Evaporation temperature and the normalized airflow rate were varied from −25°C to −28°C and from 0.8 to 1.4, respectively, thus the effects of these parameters on the runtime of the freezer were evaluated in a wide range of operating conditions. In addition, an empirical model that estimates the runtime within ± 4% compared to the experimental data was presented. By using the empirical model, optimum operating conditions (i.e. evaporation temperature and airflow rate) for the freezer were found with an energy saving of %13.8.

Keywords

Airflow Evaporation Range (aeronautics) Gas compressor Energy consumption Compartment (ship) Energy (signal processing) Nuclear engineering Computer science Environmental science Simulation Materials science Thermodynamics Engineering Physics Electrical engineering Composite material

Subject Areas

Heat Transfer and Optimization ·Mechanical Engineering ·Physical Sciences
Greenhouse Technology and Climate Control ·Plant Science ·Life Sciences
Building Energy and Comfort Optimization ·Building and Construction ·Physical Sciences

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