| Distillation: principles and practice JG Stichlmair, H Klein, S Rehfeldt John Wiley & Sons, 2021 | 640 | 2021 |
| Process optimization for large-scale hydrogen liquefaction U Cardella, L Decker, J Sundberg, H Klein International Journal of Hydrogen Energy 42 (17), 12339-12354, 2017 | 180 | 2017 |
| Roadmap to economically viable hydrogen liquefaction U Cardella, L Decker, H Klein International Journal of Hydrogen Energy 42 (19), 13329-13338, 2017 | 179 | 2017 |
| Approximate solutions for metallic regenerative heat exchangers H Klein, G Eigenberger International Journal of Heat and Mass Transfer 44 (18), 3553-3563, 2001 | 105 | 2001 |
| Economically viable large-scale hydrogen liquefaction U Cardella, L Decker, H Klein IOP conference series: materials science and engineering 171 (1), 012013, 2017 | 97 | 2017 |
| Kinetics and heat exchanger design for catalytic ortho‐para hydrogen conversion during liquefaction PJ Donaubauer, U Cardella, L Decker, H Klein Chemical Engineering & Technology 42 (3), 669-679, 2019 | 63 | 2019 |
| Poly (oxymethylene) dimethyl ether synthesis–a combined chemical equilibrium investigation towards an increasingly efficient and potentially sustainable synthetic route M Ouda, G Yarce, RJ White, M Hadrich, D Himmel, A Schaadt, H Klein, ... Reaction Chemistry & Engineering 2 (1), 50-59, 2017 | 61 | 2017 |
| Low-carbon hydrogen production via electron beam plasma methane pyrolysis: techno-economic analysis and carbon footprint assessment F Kerscher, A Stary, S Gleis, A Ulrich, H Klein, H Spliethoff International Journal of Hydrogen Energy 46 (38), 19897-19912, 2021 | 56 | 2021 |
| Analysis of regenerative enthalpy exchangers H Klein, SA Klein, JW Mitchell International journal of heat and mass transfer 33 (4), 735-744, 1990 | 44 | 1990 |
| Pressure-driven dynamic simulation of start up and shutdown procedures of distillation columns in air separation units R Kender, B Wunderlich, I Thomas, A Peschel, S Rehfeldt, H Klein Chemical Engineering Research and Design 147, 98-112, 2019 | 40 | 2019 |
| Experimental set-up for analysis of membranes used in external membrane humidification of PEM fuel cells T Cahalan, S Rehfeldt, M Bauer, M Becker, H Klein International Journal of Hydrogen Energy 41 (31), 13666-13677, 2016 | 40 | 2016 |
| Solving moving boundary problems with an adaptive moving grid method: Rotary heat exchangers with condensation and evaporation J Frauhammer, H Klein, G Eigenberger, U Nowak Chemical engineering science 53 (19), 3393-3411, 1998 | 35 | 1998 |
| Development of a digital twin for a flexible air separation unit using a pressure-driven simulation approach R Kender, F Kaufmann, F Rößler, B Wunderlich, D Golubev, I Thomas, ... Computers & Chemical Engineering 151, 107349, 2021 | 33 | 2021 |
| A transient three-dimensional model for thermo-fluid simulation of cryogenic plate-fin heat exchangers P Haider, P Freko, T Acher, S Rehfeldt, H Klein Applied Thermal Engineering 180, 115791, 2020 | 32 | 2020 |
| Influence of inlet configuration and distributor geometry on the performance of cryogenic plate-fin heat exchangers P Haider, P Freko, T Acher, S Rehfeldt, H Klein Applied Thermal Engineering 195, 117197, 2021 | 29 | 2021 |
| Liquid maldistribution in random‐packed columns: experimental investigation of influencing factors F Hanusch, S Rehfeldt, H Klein Chemical Engineering & Technology 41 (11), 2241-2249, 2018 | 29 | 2018 |
| A hybrid description and evaluation of oxymethylene dimethyl ethers synthesis based on the endothermic dehydrogenation of methanol M Ouda, F Mantei, K Hesterwerth, E Bargiacchi, H Klein, RJ White Reaction Chemistry & Engineering 3 (5), 676-695, 2018 | 28 | 2018 |
| Recent advances in experimental techniques for flow and mass transfer analyses in thermal separation systems U Hampel, M Schubert, A Döß, J Sohr, V Vishwakarma, JU Repke, ... Chemie Ingenieur Technik 92 (7), 926-948, 2020 | 27 | 2020 |
| CFD model and simulation of pure substance condensation on horizontal tubes using the volume of fluid method T Kleiner, S Rehfeldt, H Klein International Journal of Heat and Mass Transfer 138, 420-431, 2019 | 26 | 2019 |
| Analysis of membranes used in external membrane humidification of PEM fuel cells T Cahalan, S Rehfeldt, M Bauer, M Becker, H Klein International Journal of Hydrogen Energy 42 (22), 15370-15384, 2017 | 26 | 2017 |
