In the operation of photovoltaic ice storage air conditioning systems, the refrigeration and ice storage process have a more important impact on the system performance. However, in the experiment, the average photovoltaic conversion efficiency of the refrigeration and ice storage process was only 5.33 %, which is significantly lower than the mainstream …
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The FESS, SC and SMESS have a short-term energy storage capability (ms to mins), whereas the BESS has a medium-to-long-term energy storage capability (mins to h) [15-17]. This section categorises the popular topologies of the DC/DC, DC/AC and AC/AC converters into DC bus PCS [ 20 - 54 ] and AC bus PCS [ 55 - 72 ] based on …
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This paper applied the POET framework to analyze and identify possible energy efficiency activities that may reduce energy costs in HVAC cooling systems with …
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Therefore, to obtain a high matching building renewable energy system, a virtual energy storage system of the air conditioning load, accompanied by a storage …
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This study aims to improve the energy efficiency of heating, ventilation, and air-conditioning (HVAC) system in existing building by adding a thermal energy storage (TES) tank. By installing the TES tank with volume of 1 m3 in the chilled water loop of HVAC system. it can make charge/discharge surplus heat from heat source equipment.
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PV-driven air conditioners, according to the research group, are often equipped with batteries for energy storage and this results in challenges of low performance, high initial investment, and complex configurations for practical applications. "The ice thermal storage for the PV driven air conditioner with reduced batteries was …
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Air-conditioning system is the chief part of building energy consumption. With the global green energy initiative, reducing air conditioning energy consumption has great significance to the promotion of building energy conservation and emission reduce. Therefore, this paper proposes an energy saving control method for the air-conditioning …
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With the global increase in demand for energy, energy conservation of research and development buildings has become of primary importance for building owners. Knowledge based on the patterns in energy consumption of previous years could be used to predict the near-future energy usage of buildings, to optimize and facilitate more effective …
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4 · Hereby, we took the centralized air-conditioning systems of two hub airports as typical examples and quantified their energy flexibility potential by cooling load reduction …
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Therefore, this paper proposes an energy saving control method for the air-conditioning of support vector regression (SVR) based on particle swarm …
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In this paper, air-conditioning systems with thermal energy storage (A/C storage systems) are studied as a way of compensating uncertainties from wind power. …
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An optimal fresh-air utilization strategy is proposed to realize cost savings. • The isocost line is developed to determine the optimal fresh-air ratio quickly. • The optimal strategy is suitable for all weather and load conditions. • A primary energy saving of …
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Abstract. As the pressure of supply–demand balance increases with the high penetration of renewable energy resources, it is widely accepted that demand side resources including air...
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Nest''s adaptive thermostats use sensors to guess when homes are unoccupied and then automatically put their heaters or air-conditioning units into a low …
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In this paper, air conditioning loads are modeled as a kind of virtual energy storage device based on their inherent thermal storage capacity. It is …
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The temperature regulation process of air conditioning corresponds to the charging and discharging process of virtual energy storage: when the set temperature of …
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However, implementing a combined system of fan and air conditioning, which results in an additional fan energy consumption, but can effectively reduce air conditioning energy usage. In comparison to air conditioning operation with a setpoint of 26 °C, this system can achieve energy savings of over 16.5 % annually.
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Energy storage: Power revolution. Peter Fairley. Nature 526, S102–S104 ( 2015) Cite this article. 16k Accesses. 45 Citations. 40 Altmetric. Metrics. Electrical grids increasingly depend on ...
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Residential air conditioning loads with energy storage characteristics can quickly participate in the demand response, making it an important demand response …
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In this paper, a novel photovoltaic direct-driven ice storage air-conditioning system without battery bank or inverter was proposed to meet the air conditioning and refrigeration demand. It can be applied to HVAC in buildings and make full use of solar energy to meet human needs, especially in a remote area without electric grid.
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