[1]. Saadat-Targhi M , Khanmohammadi S (2018) Energy and exergy analysis and multi-criteria optimization of an integrated city gate station with organic Rankine flash cycle and thermoelectric generator, Applied Thermal Engineering, 149: 312-324. ##
[2]. Rahmati A R, Reiszadeh M (2018) An experimental study on the effects of the use of multi-walled carbon nanotubes in ethylene glycol/water-based fluid with indirect heaters in gas pressure reducing stations, Applied Thermal Engineering, 134: 107-117. ##
[3]. Rastegar S, Kargarsharifabad H, Rahbar N, Behshad Shafii M (2020) Distilled water production with combination of solar still and thermosyphon heat pipe heat exchanger coupled with indirect water bath heater - experimental study and thermoeconomic analysis, Applied Thermal Engineering, 176: 115437. ##
[4]. Gunes S, Ozceyhan V (2010) The experimental investigation of heat transfer and pressure drop in a tube with coiled wire inserts placed separately from the tube wall. Applied Thermal Engineering 30, 13: 1719-1725. ##
[5]. Ashouri E, Veysi F, Shojaeizadeh E, Asadi M (2014) The minimum gas temperature at the inlet of regulators in natural gas pressure reduction stations (CGS) for energy saving in water bath heaters. Journal of Natural Gas Science and Engineering, 21: 230-240. ##
[6]. Azizi SH, Rashidmardani A, Andalibi M R (2014) Study of preheating natural gas in gas pressure reduction station by the flue gas of indirect water bath heater. International Journal of Science and Engineering Investigations, 3, 27: 17-22. ##
[7]. Khalili E, Hoseinalipour S M, Heybatian E (2011) Efficiency and heat losses of indirect water bath heater installed in natural gas pressure reduction station; evaluating a case study in Iran, The 8th National Energy Congress, In The 8th National Energy Congress, 24. ##
[8]. Sabermoghaddam A, Farhadiyan N, Sheikhiyani H (2014) Feasibility of energy optimization in the heaters of the gas pressure reduction station, The 5th National Conference on CFD Applications in the Chemical and Petroleum Industries, 21 May, Tehran, Iran. Tehran: Iran University of Science and Technology. ##
[9]. Hossein S S, Farhadi M, Sedighi K (2017) Experimental investigation of a solar desalination system using twisted tape and wire coil inside of spiral heat exchanger, Desalination. 42: 34–44. ##
[10]. Wu Z, L. Wang, B. Sundén (2013) Pressure drop and convective heat transfer of water and nanofluids in a double-pipe helical heat exchanger, Applied Thermal Engineering, 60, 1-2: 266-274. ##
[11]. Dizaji H S, Jafarmadar S, Hashemian M (2015). The effect of flow, thermodynamic and geometrical characteristics on exergy loss in shell and coiled tube heat exchangers, Energy, 91: 678-684. ##
[12]. Farzaneh-Gord M, Arabkoohsar A, Deymi Dasht-bayaz M, Farzaneh-Kord V (2012) Feasibility of accompanying uncontrolled linear heater with solar system in natural gas pressure drop stations, Energy, 41, 1: 420-428. ##
[13]. Rashidmardani A, Hamzei M (2013) Effect of Various Parameters on Indirect Fired Water Bath Heaters Efficiency to Reduce Energy Losses, International Journal of Science and Engineering Investigations, 2: 12. ##
[14]. Garcia A, Vicente P G, Viedma A (2005) Experimental study of heat transfer enhancement with wire coil inserts in laminar-transition-turbulent regimes at different Prandtl numbers, International journal of heat and mass transfer, 48: 4640–4651. ##
[15]. Garcia A, Solano J P, Vicente P G, Viedma A (2007) Enhancement of laminar and transitional flow heat transfer in tubes by means of wire coil inserts, Int. J. Heat and Mass Transfer. 50: 3176–3189. ##
[16]. Ghaebi H, Farhang B, Rostamzadeh H, Parikhani T (2018) Energy, exergy, economic and environmental (4E) analysis of using city gate station (CGS) heater waste for power and hydrogen production: A comparative study, International Journal of Hydrogen Energy, 43, 3:1855-1874. ##
)