Abstract
Heating, Ventilation, and Air Conditioning (HVAC) system in hospital's clean room is required to continue working for 24 hours to provide the ideal air quality for the activities therein. This causes a huge amount of energy consumption in hospital buildings itself. This study aims to determine the effectiveness and heat recovery of Heat Pipe Heat Exchanger (HPHE). The HPHE used in this study consisted of 12 heat pipes per module, in which the line was arranged staggered. The number of the module is varied 3 times, which are 1, 2, and 3 modules. The heat pipe is made of copper and contains working fluid in the form of water with 50% filling ratio. HPHE equipped with fins to expand the contact surface with airflow. Each variation of the number of modules is tested on the HVAC system model of the clean room. In the evaporator inlet, air flowing to the variation of temperature: 28, 30, 35, and 40°C, and at speeds of 1.5, 2.0, 2.5 m/s. The use of HPHE can recover heat as much as 1654.72 kJ/h. The highest effectiveness of this HPHE is 48.729%, was obtained when using three modules, air temperature inlet evaporator (Te,i) = 35°C, and airspeed of inlet 1.5 m/s.
Highlights
Hospitals are health service institutions that provide a full range of personal health services, and provide inpatient, outpatient, and emergency care services [1]
The results show that the full oscillating heat pipe (OHP) can work in the air to air convection mode for heat recovery under typical HVAC system operating conditions
Fig. 7. shows the relative humidity profiles at four points of measurement. From this graph it can be seen that the relative humidity of air as it passes through the Heat Pipe Heat Exchanger (HPHE) evaporator has increased from 23.98% to 32.93%
Summary
Hospitals are health service institutions that provide a full range of personal health services (promotive, preventive, curative and rehabilitative), and provide inpatient, outpatient, and emergency care services [1]. The existing rooms in the hospital include the inpatient room, emergency room, laboratory room, pharmacy room, isolation room, and operating room. Facilities and infrastructure in the hospital have an important role for the hospital to keep performing its functions. These facilities and infrastructure include buildings, air systems, mechanical and electrical systems, and medical equipment. The air-conditioning system for the clean room should continue to operate for 24 hours in order to keep functioning properly. Hospital rooms such as operating rooms, for example, have special specifications set in international standards
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
