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http://dx.doi.org/10.5855/ENERGY.2016.25.3.073

A Development of Test Method on the Energy Consumption Efficiency of Domestic Gas Boiler below 70 kW  

Park, Chanil (Department of Energy Plant Engineering, Seoul National University of Science&Technology)
Kim, Laehyun (Department of Chemical & Biomolecular Engineering, Seoul National University of Science&Technology)
Publication Information
Journal of Energy Engineering / v.25, no.3, 2016 , pp. 73-82 More about this Journal
Abstract
The energy consumption efficiency in a variety of operational test mode was considered for domestic gas boiler below 70 kW. The energy efficiency test carried out in the experimental conditions similar to the actual operation status was analyzed and compared with the current Korean efficiency test method. Four types of test modes for each boiler(Non-condensing and condensing boiler) were carried out in the condition of laboratory mode(full load, steady state) and actual operating mode. Futhermore divided into two operational status for each of these, it was applied by maximum gas consumption and consumer sales conditions. Test equipment has the function referred to gas boiler standards, such as KS or European standard EN. The equipment should be continuously measured and record the measuring factors which are the flow volume of gas and water, laboratory temperature, water flow volume for heating, return water volume after heating and quantity of the exhaust gases(CO, NO, $NO_2$). The experimental results were found that non-condensing boiler efficiency of laboratory mode is about 10% higher than that of actual mode. In case of condensing boiler, the efficiency of laboratory condition is about 20% higher than that of the actual using conditions. I suggest that the government will gradually take the efficiency test method considering the actual conditions.
Keywords
Energy consumption efficiency; Domestic gas boiler; Test method;
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