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Coil Control for energy saving in water dispenser

IP.com Disclosure Number: IPCOM000219557D
Publication Date: 2012-Jul-05
Document File: 5 page(s) / 58K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a smart system for cooling the water in water dispensers. The system gathers information about water utilization, analyzes the data, and then applies it to save the overall energy consumption of water dispensers. The method enables a water dispensing system to determine when to turn off the coil that carries the water from the water dispenser to the water vessel, making it possible to save energy.

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Coil Control for energy saving in water dispenser

The control mechanisms in water dispensers are intended for controlling the water purity and storage level. When more than one dispenser is operational in a building , they often operate through a central server that processes the data sent from all water dispensers. Energy-saving functions performed by current monitoring systems include disabling one or more water dispenser functionalities based on the last utilization rate (e.g., turning off the display if the dispenser has not been used for 30 minutes) or enabling/disabling a functionality when an infrared sensor detects the presence or absence of users.

Most water dispensers have a duct that carries the water from the water dispenser to the water vessel, also known as the coil. The water dispensers make use of a coil that the system keeps cool all the time. For this reason, the coil is the main energy consumer in a water dispenser. None of the current solutions controls the coil in a smart way, turning it off when it is not needed in order to save energy .

The disclosed invention proposes a method for a water dispensing system to determine when to turn off the coil, making it possible to save energy in water dispensers . Some related inventions are found in the literature . [1-6] None work as a smart system for cooling the water on water dispensers, gathering information about water utilization , analyzing this data, and reusing it to save the overall energy consumption on the water dispensers. None of the solutions found in the literature use the consuming statistics to forecast the amount of water that needs to be cooled in a certain period , considering
the external events that might affect this consumption (e.g., seasons, holidays, vacations), to turn off the coil.

The invention uses a Relational Database Management System (RDBMS) table to periodically gather information about water consumption in a building . After a few days or weeks of collecting data, the system extracts from this database some patterns in the water consumption. For example, from midnight through 6:00 AM on weekdays, only


0.5 liters are used, on average. The method uses this information, together with an Adjustment Factor (configured by the user), to determine the amount of water that needs to cool in the vessel (e.g., 0.5 liters). Because this is a relatively low volume , the system can keep the coil turned off during this period . When the vessel is partially filled, the invention helps the system save energy because when the vessel fulfillment it decreased, then the loss of energy decreases, keeping the water temperature more stable in the vessel.

Over time, the water usage statistics will become more accurate. This invention also allows the user to stop collecting statistics for water consumption during designated periods (e.g., vacations, holidays) in order to avoid the skewing the actual consumption statistics.

Example embodiment #1: A system can...