Performance enhancement of a dual heat pipe array based evacuated tube solar water heater for north eastern India climatic condition: A numerical approach

Tamuli, Bhaskar Ranjan; Nath, Sujit; Bhanja, Dipankar

doi:10.1016/j.applthermaleng.2022.118597

Cited by 10 publications

(1 citation statement)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In past years, HPs with different forms have been widely applied in engineering applications, such as heat recovery systems [35][36][37][38], electronics cooling equipment [39][40][41], solar water heater systems [42][43][44][45], photovoltaic cooling systems [46][47][48], thermoelectric cooling [49][50][51], data center cooling systems [52][53][54] and ACSs [55][56][57]. The ACS integrated with HP mainly concerns the hot spots of the natural cooling system and performance improvements with respect to the natural cooling system, SAC, CACS and cooling terminal devices.…”

Section: Application Of the High Efficiency Terminalsmentioning

confidence: 99%

The Review of the Application of the Heat Pipe on Enhancing Performance of the Air-Conditioning System in Buildings

Yuan,

Liu,

Zhang

et al. 2023

Processes

View full text Add to dashboard Cite

An air-conditioning system (ACS), which consumes large amounts of high-grade energy, is essential for maintaining the indoor thermal environment of modern buildings. However, an ACS consumes almost half of the total energy of the building. Therefore, it is necessary to reduce the energy consumption of the ACS to promote energy conservation and emission reduction in the building sector. In fact, there is an abundance of waste heat and low-grade energies with the potential to be utilized in ACS in nature, but many of them are not utilized efficiently or cannot be utilized at all due to the low efficiency of thermal energy conversion. Known as a passive thermal transfer device, the application of a heat pipe (HP) in the ACS has shown explosive growth in recent years. HPs have been demonstrated to be an effective method for reducing building cooling and heating demands and energy consumption in ACS with experimental and simulation methods. This paper summarizes the different HP types applied in the ACS and provides brief insight into the performance enhancement of the ACS integrated with HP. Four types of HPs, namely tubular HP (THP), loop HP (LHP), pulsating HP (PHP) and flat HP (FHP), are presented. Their working principles and scope of applications are reviewed. Then, HPs used in natural cooling system, split air conditioner (SAC), centralized ACS (CACS) and cooling terminal devices are comprehensively reviewed. Finally, the heat transfer characteristics and energy savings of the above systems are critically analyzed. The results show that the performance of the HP is greatly affected by its own structure, working fluid and external environmental conditions. The energy saving of ACS coupled with HP is 3–40.9%. The payback period of this system ranges from 1.9–10 years. It demonstrates that the HP plays a significant role in reducing ACS energy consumption and improving indoor thermal comfort.

show abstract