The gas consumption of the absorption chiller for commercial facilities has been maintained at about 20% lower than during peak times.
It is a large commercial facility that opened in 2002, using gas absorption chillers as the heat source for air conditioning. Although the condenser and absorber were regularly cleaned with brushes every year, the consumption significantly increased each year until 2005. In the spring of 2006, a chemical cleaning was conducted, resulting in a reduction of annual gas consumption by about 20%. In response to this, a ball cleaning system was introduced to prevent efficiency decline due to dirt in the heat exchangers.
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◆Energy-saving Effect Energy consumption reduction of 21.4% to 24.6%! ◎March 2006: Implementation of chemical cleaning Gas consumption reduced by 19.1% compared to FY 2005 (-104,722m3) ◎March 2007: Introduction of ball cleaning Gas consumption reduced by 21.4% compared to FY 2005 (-117,170m3) ◎Two years after installation in 2008 Gas consumption reduced by 24.6% compared to FY 2005 (-135,083m3) ◎Three years after installation in 2009 Gas consumption reduced by 23.0% compared to FY 2005 (-128,041m3) ◆Cost-saving Effect The implementation cycle of chemical cleaning has become unnecessary due to the dirt adhesion prevention effect.
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Applications/Examples of results
Absorption chiller for commercial facilities Absorption chiller for hospital and building air conditioning Absorption refrigeration unit for production lines Even with the introduction of high-performance refrigeration units, if the condenser and absorber are dirty, their capabilities cannot be fully realized. Please consider upgrading to a refrigeration unit that does not get dirty through ball cleaning for the heat exchangers.
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The costs of electricity and gas for air conditioning are becoming a significant issue. No matter how efficient a refrigeration unit is, if the heat exchanger is dirty, its performance can be halved. Even with regular brush cleaning, much of the operating period may be spent in a dirty state, leading to increased maintenance costs. For those who have not encountered a method to "keep the heat exchanger clean," I hope to share a way to maintain the heat exchanger in a clean state without incurring high costs for water treatment, without needing to perform brush cleaning once a year, and without requiring chemical cleaning every few years.