He inner diameter in the Archimedes screw The outer diameter from the Archimedes screw The estimated value The average in the estimations Fill height of water in a bucket of screw Upper (inlet) water level of the screw Decrease (outlet) water amount of the screw The obtainable head Gap width (The gap amongst the trough and screw) T total length of your screw The mean absolute percentage error The amount of data points inside the dataset Number of Amidepsine D Purity helical planed surfaces The observed value The average of the observed data The percentage (percent) error Total flow rate passing by means of the screw The maximum flow rate that could pass by means of a screw when = M and AE = AMax The volumetric flow price that passes by means of the cross-sectional location of AO at the speed of VT . Radios Pearson correlation Pitch from the screw (Distance along the screw axis for a single full helical plane turn) Axial transport velocity The cross section fill height The no cost surface elevations at the upstream The no cost surface elevations in the downstream Thinclination angle with the screw The screw’s pitch to outer diameter ratio (S/DO) The continuous accounting for screw geometry, rotation speed and fill level within the energy function form of the diameter equation Angle of sector The screw’s inner to outer diameter ratio (Di /DO) The dimensionless inlet depth of your screw The rotation speed on the screw The maximum rotation speed in the screw (Muysken limit) inner minimum Maximum Outer (m2) (m2) (m2) (-) (-) (-) (m) (m)(-) (m) (m) (m) (m) (m) (-) (m3 /s) (m3 /s) (m3 /s) (m) (m) (m/s) (rad) (m) (m) (rad) (-) (s3/7 m-2/7) (rad) (-) (-) (rad/s) (rad/s)Energies 2021, 14,13 ofenergiesArticleInvestigation of an Inclined Heat Pipe Heat Exchanger as a Passive Cooling Mechanism on a Photovoltaic PanelSamiya Aamir Al-Mabsali 1 , Jay Pillo Candido 2 , Hassam Nasarullah Chaudhry 3, and Mehreen Saleem GulSchool of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, Edinburgh EH14 4AS, UK; [email protected] (S.A.A.-M.); [email protected] (M.S.G.) Department of Engineering, University of Technology and Applied Sciences, Muscat P.O. Box 74, Oman; [email protected] School of Power, Geoscience, Infrastructure and Society, Heriot-Watt University Dubai Campus, Heriot-Watt University, Dubai Understanding Park, Dubai P.O. Box 38103, United Arab Lisinopril-d5 Angiotensin-converting Enzyme (ACE) Emirates Correspondence: [email protected]: Aamir Al-Mabsali, S.; Candido, J.P.; Chaudhry, H.N.; Gul, M.S. Investigation of an Inclined Heat Pipe Heat Exchanger as a Passive Cooling Mechanism on a Photovoltaic Panel. Energies 2021, 14, 7828. 10.3390/en14237828 Academic Editor: Dmitry Eskin Received: 19 October 2021 Accepted: 18 November 2021 Published: 23 NovemberAbstract: An investigation on the heat transfer coefficient (HTC) of a heat pipe heat exchanger (HPHE) was carried out although becoming installed as a cooling mechanism on photovoltaic panels. The Ecohouse at the University of Technologies and Applied Sciences in Muscat, Oman, was utilized because the case study. The experiment monitored the impact of temperature variations on PV-HPHE-induced energy generation. The heat pipes were arranged within a double-sided condenser inside a spanwise manner with spacing 50 mm within the center with an inclination angle of three . J-type thermocouples (exposed wire, polytetrafluoroethylene (PTFE) insulated) using a tip diameter of 1.5 mm had been utilized. The outcomes indicated mean values of HTC that have been measured at 2.346 W/m2 K. The findings showed that the HTC values possessed a minimal.