An autonomous hierarchical control for improving indoor comfort and energy efficiency of a direct expansion air conditioning system
Sign Up to like & getrecommendations! Published in 2018 at "Applied Energy"
DOI: 10.1016/j.apenergy.2018.03.162
Abstract: Abstract This paper presents an autonomous hierarchical control method for a direct expansion air conditioning system. The control objective is to maintain both thermal comfort and indoor air quality at required levels while reducing energy… read more here.
Keywords: direct expansion; energy; control; expansion air ... See more keywords
Modeling and experimental investigation of an advanced direct-expansion outdoor air dehumidification system
Sign Up to like & getrecommendations! Published in 2019 at "Applied Energy"
DOI: 10.1016/j.apenergy.2019.02.080
Abstract: Abstract Dedicated outdoor air system is drawing much attention in air-conditioning applications. However, the cooling and dehumidification process of supply air in the dedicated outdoor air system is energy-intensive. In this study, we proposed a… read more here.
Keywords: system; direct expansion; dehumidification; air ... See more keywords
Mathematical modeling and performance analysis of direct expansion heat pump assisted solar drying system
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DOI: 10.1016/j.renene.2020.11.008
Abstract: Abstract In order to solve the problems of instability and poor controllability of only using solar energy in the drying process, a novel direct expansion heat pump assisted solar drying system was presented and constructed… read more here.
Keywords: pump assisted; direct expansion; system; heat pump ... See more keywords
Recent advances in direct expansion solar assisted heat pump systems: A review
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DOI: 10.1016/j.rser.2019.04.044
Abstract: Direct-expansion solar assisted heat pumps (DX-SAHPs) have a great potential for various applications and are conductive to the environment by using low-temperature ambient energy and solar radiation. This review paper aims at presenting the advancements… read more here.
Keywords: expansion solar; solar assisted; review; direct expansion ... See more keywords
Refrigerants selection for a direct expansion solar assisted heat pump for domestic hot water
Sign Up to like & getrecommendations! Published in 2019 at "Solar Energy"
DOI: 10.1016/j.solener.2019.04.027
Abstract: Abstract An important step during a project of a heat pump system is choosing a more suitable refrigerant. This paper presents a comparative study among refrigerants for a small direct expansion solar assisted heat pump… read more here.
Keywords: expansion solar; heat pump; heat; direct expansion ... See more keywords
Experimental assessment of a CO2 direct-expansion solar-assisted heat pump operating with capillary tubes and air-solar heat source
Sign Up to like & getrecommendations! Published in 2021 at "Solar Energy"
DOI: 10.1016/j.solener.2021.02.056
Abstract: Abstract This paper presents an experimental study on a direct-expansion solar-assisted heat pump (DX-SAHP) operating with capillary tubes in a transcritical carbon dioxide cycle. An air-solar dual-source evaporator is also proposed as an alternative to… read more here.
Keywords: capillary tubes; heat; direct expansion; radiation ... See more keywords
Direct expansion (DX) air conditioning (A/C) system control: Hybrid BOANFIS technique
Sign Up to like & getrecommendations! Published in 2023 at "International Review of Applied Sciences and Engineering"
DOI: 10.1556/1848.2023.00524
Abstract: This paper describes a novel hybrid technique with fractional order PID controller (FOPID) for simultaneously controlling the humidity of indoor air temperature and the direct expansion (DX) air conditioning (A/C) system. The proposed hybrid system… read more here.
Keywords: expansion air; system; direct expansion; control ... See more keywords