Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangers
Isolation rooms are crucial in healthcare facilities to prevent the spread of infectious diseases. Infectious diseases can be transmitted to humans from humans or through animals known as zoonoses. With the increase in the number of COVID-19 cases, isolation rooms have become one of the most critica...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024003190 |
| _version_ | 1827360863101648896 |
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| author | Fazri Amir Samsul Rizal Razali Thaib Hamdani Umar Ikramullah Ikramullah Nasruddin A. Abdullah Teuku Azuar Rizal |
| author_facet | Fazri Amir Samsul Rizal Razali Thaib Hamdani Umar Ikramullah Ikramullah Nasruddin A. Abdullah Teuku Azuar Rizal |
| author_sort | Fazri Amir |
| collection | DOAJ |
| description | Isolation rooms are crucial in healthcare facilities to prevent the spread of infectious diseases. Infectious diseases can be transmitted to humans from humans or through animals known as zoonoses. With the increase in the number of COVID-19 cases, isolation rooms have become one of the most critical facilities in hospitals. Maintaining the correct temperature and humidity in these isolation rooms is a challenge, considering the heating, ventilation, and air conditioning (HVAC) systems that continuously consume large amounts of energy. With the application of energy conservation methods, the total energy consumption of HVAC systems can be reduced. Many studies have shown that the heat pipe heat exchanger (HPHE) technology can contribute significantly to energy savings using HVAC systems. In this study, the effectiveness of an HPHE on an HVAC system in an isolation room was examined, and the total energy reduction was quantified. The HPHE consisted of two rows with ten heat pipes in each row, arranged in a staggered configuration with fresh air temperature and mass flow variations. The inlet fresh air temperatures varied at 32, 35, 37, and 40 °C and fresh air velocities at 1.2, 1.6, 2.2, and 2.6 m/s. Using a chiller, the inlet fresh air was cooled to a comfortable temperature zone, approximately 24.4–25.2 °C, in the isolation room. Notably, higher velocities decreased the effectiveness of the HPHE. An increase in the flow rate enhanced the system, thereby improving the heat recovery value. The increase in the inlet fresh air temperature from 32 °C, that yielded an energy saving of 1.23 W, to 40 °C, resulted in a further energy saving of 1.85 W. The application of the HPHE in the HVAC system in isolation rooms represents a significant innovation that contributes to a reduction in total energy consumption. |
| first_indexed | 2024-03-08T06:55:33Z |
| format | Article |
| id | doaj.art-0897937fb4f3468e8b3ad3dc43a31a7e |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-08T06:55:33Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-0897937fb4f3468e8b3ad3dc43a31a7e2024-02-03T06:36:50ZengElsevierHeliyon2405-84402024-01-01102e24288Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangersFazri Amir0Samsul Rizal1Razali Thaib2Hamdani Umar3Ikramullah Ikramullah4Nasruddin A. Abdullah5Teuku Azuar Rizal6Doctoral Program, School of Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Department of Mechanical Engineering, Universitas Samudra, Langsa, 24416, IndonesiaDepartment of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Corresponding author.Department of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, IndonesiaDepartment of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, IndonesiaDepartment of Mechanical and Industrial Engineering, Universitas Syiah Kuala, Banda Aceh, 23111, IndonesiaDepartment of Mechanical Engineering, Universitas Samudra, Langsa, 24416, IndonesiaDepartment of Mechanical Engineering, Universitas Samudra, Langsa, 24416, IndonesiaIsolation rooms are crucial in healthcare facilities to prevent the spread of infectious diseases. Infectious diseases can be transmitted to humans from humans or through animals known as zoonoses. With the increase in the number of COVID-19 cases, isolation rooms have become one of the most critical facilities in hospitals. Maintaining the correct temperature and humidity in these isolation rooms is a challenge, considering the heating, ventilation, and air conditioning (HVAC) systems that continuously consume large amounts of energy. With the application of energy conservation methods, the total energy consumption of HVAC systems can be reduced. Many studies have shown that the heat pipe heat exchanger (HPHE) technology can contribute significantly to energy savings using HVAC systems. In this study, the effectiveness of an HPHE on an HVAC system in an isolation room was examined, and the total energy reduction was quantified. The HPHE consisted of two rows with ten heat pipes in each row, arranged in a staggered configuration with fresh air temperature and mass flow variations. The inlet fresh air temperatures varied at 32, 35, 37, and 40 °C and fresh air velocities at 1.2, 1.6, 2.2, and 2.6 m/s. Using a chiller, the inlet fresh air was cooled to a comfortable temperature zone, approximately 24.4–25.2 °C, in the isolation room. Notably, higher velocities decreased the effectiveness of the HPHE. An increase in the flow rate enhanced the system, thereby improving the heat recovery value. The increase in the inlet fresh air temperature from 32 °C, that yielded an energy saving of 1.23 W, to 40 °C, resulted in a further energy saving of 1.85 W. The application of the HPHE in the HVAC system in isolation rooms represents a significant innovation that contributes to a reduction in total energy consumption.http://www.sciencedirect.com/science/article/pii/S2405844024003190Energy conservationHeatingVentilationAnd air conditioningIsolation roomHeat pipe heat exchanger |
| spellingShingle | Fazri Amir Samsul Rizal Razali Thaib Hamdani Umar Ikramullah Ikramullah Nasruddin A. Abdullah Teuku Azuar Rizal Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangers Heliyon Energy conservation Heating Ventilation And air conditioning Isolation room Heat pipe heat exchanger |
| title | Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangers |
| title_full | Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangers |
| title_fullStr | Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangers |
| title_full_unstemmed | Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangers |
| title_short | Energy conservation of HVAC systems in isolation rooms using heat pipe heat exchangers |
| title_sort | energy conservation of hvac systems in isolation rooms using heat pipe heat exchangers |
| topic | Energy conservation Heating Ventilation And air conditioning Isolation room Heat pipe heat exchanger |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024003190 |
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