Results 11 to 20 of about 7,800 (206)

Design and Development of Performance Rating Apparatus for Cold Room Refrigeration Unit Using Cooling-Load Balance Method [PDF]

open access: yesE3S Web of Conferences, 2023
Refrigeration systems are composed of many components working together, and their refrigerating capacity depends upon these components constituting the refrigeration system. The design of the refrigeration system does not only consider cooling loads from
Tragangoon Arruck   +3 more
doaj   +1 more source

Analysis of the Applicability of the Parabolic Trough Solar Thermal Power Plants in the Locations with a Temperate Climate

open access: yesEnergies, 2021
Currently, intensive work is underway in Poland to increase the share of renewable energy sources in the overall energy balance. Therefore, this paper presents the possibilities of using concentrated solar power in zones with a temperate climate.
Tomasz Janusz Teleszewski   +3 more
doaj   +1 more source

Study on the Coupling Effect of Heat Transfer and Refrigerant Distribution in the Flat Tube of a Microchannel Evaporator

open access: yesEnergies, 2022
Refrigerant maldistribution severely deteriorates the heat transfer performance of a microchannel evaporator. Compared with the refrigerant distribution among flat tubes along the header, refrigerant distribution among microchannels in the flat tube in ...
Wenju Hu, Xin Zhang
doaj   +1 more source

Numerical Investigation on the Cooling Performance of Energy Storage System according to Type of HVAC [PDF]

open access: yes한국정밀공학회지, 2020
In this paper, we analyze the cooling performance according to the HVAC types installed in the energy storage system (ESS). Batteries in ESS have the disadvantages of decomposition and catching fire at high temperatures, so it is important to control the
Hwabhin Kwon, Heesung Park
doaj   +1 more source

Analysis of the Advisability of Using Solar Collectors in a Single-Family House in Poland and Spain

open access: yesProceedings, 2020
In this paper we show the advisability of usage of solar collectors for domestic hot water (DHW) preparation in buildings located in two countries: Poland and Spain. The analysis was conducted for a single-family house with horizontal roof.
Bernadetta Wądołowska   +1 more
doaj   +1 more source

Influence of Surgical Staff Movement on Airborne Particle Concentrations in Operating Rooms with Laminar and Mixing Ventilation [PDF]

open access: yesE3S Web of Conferences
Operating rooms (ORs) are critical environments where airborne contamination control is essential for reducing the risk of surgical site infections. Ventilation strategies typically rely on either laminar air flow (LAF) systems or mixed ventilation (MV).
Harsem Trond Thorgeir   +5 more
doaj   +1 more source

A Study on Indoor Air Quality Using a Hybrid Dehumidification Ventilation Unit [PDF]

open access: yesE3S Web of Conferences
This study investigates the performance and applicability of a hybrid dehumidification-ventilation system that integrates a rotary desiccant rotor with a heat pump to improve energy efficiency and indoor comfort under hot and humid conditions exacerbated
Hwang Insoo, Kim Junwoo, Bak Hyunbae
doaj   +1 more source

Development and Evaluation of Smart Home IoT Systems applied to HVAC Monitoring and Control [PDF]

open access: yesEAI Endorsed Transactions on Energy Web, 2021
This work describes the development and evaluation of two smart home-based Internet of Things (IoT) systems applied to HVAC (Heating, Ventilation and Air Conditioning) monitoring and control, including parameters such as temperature ...
Ruben Figueiredo   +5 more
doaj   +1 more source

Predictive smart thermostat controller for heating, ventilation, and air-conditioning systems; pp. 291–299 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2018
The paper suggests a simple energy saving controller for heating, ventilation, and air-conditioning (HVAC) systems that combines information on occupancy and weather with predictive control to save energy in buildings.
Mallikarjun Soudari   +4 more
doaj   +1 more source

Implementation of DSM strategies at the Kopanang Mine

open access: yesJournal of Energy in Southern Africa, 2017
This paper describes the implementation of Demand Side Management (DSM) strategies at AngloGold’s Kopanang Mine, for a period of three months during 2001.
EH Mathews, M den Boef
doaj   +1 more source

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