Cover Image

Solar photovoltaic-assisted DC vapour compression with a low-cost ice gel thermal battery for off-grid building cooling

In off-grid areas where extending the grid is costly, traditional AC powered air conditioning units pose challenges for off-grid photovoltaic PV setups due to expensive inverters and battery storage. This leads to an interest in cost-effective solar-driven DC cooling system. However, its efficiency...

Full description

Saved in:
Bibliographic Details
Main Authors: Jarimi, Hasila, Wan Roshdan, Wan Nur Adilah, Abdullah, Amirudin, Zheng, Tianhong, Zhang, Yanan, Razak, Tajul Rosli, Riffat, Saffa, Ahmad, Emy Zairah, Abd Rahman, Noor Muhammad, Jamaludin, Mohd Haikal
Format: Article
Language:English
Published: Elsevier Ltd 2024
Online Access:http://eprints.utem.edu.my/id/eprint/27471/2/0228217052024155538817.PDF
http://eprints.utem.edu.my/id/eprint/27471/
https://pdf.sciencedirectassets.com/312002/1-s2.0-S2352710224X0008X/1-s2.0-S2352710224009185/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEH4aCXVzLWVhc3QtMSJGMEQCIHN1AxkNNlaxIX0rWJj9z9l3d%2Ba9buTTgNCqAnWZ%2FaTzAiBXKmNyrHf1fn9%2F6P7vox1Qp4C73Q9iBWvqT8HLg%2BYqFiqyBQgmEAUaDDA1OTAwMzU0Njg2NSIMtixn%2BLSWrHs5pjPJKo8FxDpnspBHRp0OhCFXVQtXY2D16%2FlWYNw4TisDB8Hl%2Bb1ogoMvosbxTvSeiaZWlqlQJV3J0bQCd9X5xcm27EhnYi53x2xBR%2BtlOi0MjKdBh5sQpu5gPbnPpspFj6YNpn8E4OsHtxs5BSNK9FC92KbfmfxBU9lir%2FetScKlznn3xv6RjjvEOChX53fTlgk6svMzVP8Ms1YuD5aIsrSFpQae0Rm8ZeG3mYfAYmAokBhe2X6WA9eE4ElrobdimDeY6qge2Z%2BmiYkAxUx17fk2ByirzOt%2BjGtVKf2T54NXdQTcibiXAisMJQC5yYIhgQFgNa%2BVhYSYPjxMTYQCT3WPZTo4ACWag9QAufG3Y27rCm6EabnXrw8qkc3HuOIgHv6sogwBFWIRM%2BX7GyklrQ%2FflZJA7hh8X0dkKKRFGwL811%2BSgKuBtwb%2Ft2NpriDVta%2FdMzRwr7VncvyVzBXae2%2Fjy2tChDQRJv1xcynEgcmj%2FXBw3K8y4aiow8kwxph3yqwhzuKEOzbr57sz2GpMvVIHV81IRCXINp2jZAnIkTLnHIV5XXZo%2BCVxeH1I1W7iQ%2F%2BRbXG%2Bl1duK1d7JLZwWntsUTIW6Dnigoq0P8RLrUlOQh5mF8oSZWLeIRjjkhf91ovTM4%2BrLV6bwig%2FdJQOHWe8K4dP7gs0AXIIl5hHhkuSPVkJxOvHWKMAevMWj%2FRyk1p4HySYv6nc5dMVWL8FS3Sz47%2BFOBoFUowpi4wJ%2FeIJmh57sQh%2BoREE2bFGzbXJRNfcSx7WKE3CtpHw%2FDfWBPaEQccfXASN7sT9Ujv5L1UPQdcetlrA2AwKAG7SZIIi51kAnon73IjKgrXqqFBkRIXVBpiC%2F4Ky932wQyW%2Be8Gmm8QLkDC21MmzBjqyAXJ%2F%2FeKwtAr9RkZB5NeLhMCwwSRhGJ2oa%2F7IS8vo%2Bh8i4owB%2Ff0PTxnCc4f44gP3InRpk7RdKcrbosqn99zpIqcSuTo2LjiTqnPsY3izQwA4fq7gxNESzkCmg0iOVMVvKrhZvqrlVr%2B5EBa1JhNzuETJGoOtCcAbzHFT0UtqBvErSyyrZpv1OVSN7f%2FAdn5PqTREeaWYyLcmG%2BspAnHm7R71auuxAjV1tHvEHo%2FsIsQg23g%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20240619T063119Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAQ3PHCVTY3WZ24KAQ%2F20240619%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=c4d81a6d4c05f1f18728a622208b6979708c49d04219d310b13d421d67f6be08&hash=32bd2e159fe6eef665b31bc12e82989c863e71fccad0c8cece85760c3c8c2548&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&pii=S2352710224009185&tid=spdf-f9d73f58-d03b-4dbe-94d1-e87f2d1b77d0&sid=18d3abff2718f8413559a8390e4ac5c0cd0bgxrqb&type=client&tsoh=d3d3LnNjaWVuY2VkaXJlY3QuY29t&ua=031c575f585f585c06&rr=896179b63d6b13dc&cc=my
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In off-grid areas where extending the grid is costly, traditional AC powered air conditioning units pose challenges for off-grid photovoltaic PV setups due to expensive inverters and battery storage. This leads to an interest in cost-effective solar-driven DC cooling system. However, its efficiency depends on solar energy availability with limited operation during low solar radiation. This study proposes a solar PV-driven DC vapour compression system with variable refrigerant flow (VRF) and low-cost organic phase change material (PCM) ice gel storage. Preliminary experimental work determined the best operational mode namely, Mode A (PV + Thermal Battery), Mode B (PV-electrical battery-3h + Thermal Battery), Mode C (PV-grid + Thermal Battery), and Mode D (Grid + Thermal Battery). Key performance parameters include the Performance Quality Factor of the PV-powered system SFPVVC, and levelized cost of cooling (LCOC). Mode B was found the best, and due to the system's complex dynamic variation with environmental parameters, a novel simulation approach combining artificial neural network (ANN) and TRNSYS was developed and experimentally validated. Thermal comfort is crucial for healthcare facilities as it promotes patient well-being, enhances staff performance, and is vital for infection control, thus a rural healthcare facility in Malaysia was selected for the simulation case-study. Mode B showed at least 50 % higher SFPVVC compared to grid reliance, with superior LCOC performance, ensuring sustainable cooling despite limited electricity supply. The low-cost ice gel thermal battery reduced the system cost to 0.06 USD/kWh compared to 0.56 USD/kWh without it and 1.01 USD/kWh with grid extension. These findings offer insights for implementing similar sustainable cooling systems in rural areas.

Similar Items